Removed old CVS directories

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3292 42af7a65-404d-4744-a932-0658087f49c3

35 files changed, 0 insertions, 5915 deletions

diff --git a/nuttx/arch/c5471/src/Makefile b/nuttx/arch/c5471/src/Makefile
deleted file mode 100644
index 1e7933b8f..000000000
--- a/nuttx/arch/c5471/src/Makefile
+++ /dev/null
@@ -1,125 +0,0 @@
-############################################################################
-# arch/c5471/src/Makefile
-#
-#   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/Make.defs
-
-CFLAGS		+= -I$(TOPDIR)/sched
-
-ASRCS		= up_vectors.S up_saveusercontext.S up_fullcontextrestore.S
-ifeq ($(CONFIG_DEBUG),y)
-ASRCS		+= up_lowputc.S
-endif
-AOBJS		= $(ASRCS:.S=.o)
-
-CSRCS		= up_initialize.c up_initialstate.c up_idle.c up_doirq.c \
-		  up_irq.c up_syscall.c up_dataabort.c up_prefetchabort.c \
-		  up_undefinedinsn.c up_interruptcontext.c up_timerisr.c \
-		  up_createstack.c up_usestack.c up_releasestack.c \
-		  up_exit.c up_assert.c up_blocktask.c up_unblocktask.c \
-		  up_releasepending.c up_reprioritizertr.c up_copystate.c \
-		  up_schedulesigaction.c up_sigdeliver.c up_serial.c \
-		  up_delay.c up_allocateheap.c up_watchdog.c
-COBJS		= $(CSRCS:.c=.o)
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-LDFLAGS		= $(ARCHSCRIPT)
-EXTRA_LIBS	=
-
-LINKOBJS	= up_head$(OBJEXT)
-LINKLIBS	=
-LDPATHES	= $(addprefix -L$(TOPDIR)/,$(dir $(LINKLIBS)))
-LDLIBS		= $(patsubst lib%,-l%,$(basename $(notdir $(LINKLIBS))))
-
-BOARDDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src/board
-
-LIBGCC		= ${shell $(CC) -print-libgcc-file-name}
-
-all: up_head.o libarch$(LIBEXT)
-
-$(AOBJS) $(LINKOBJS): %.o: %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %.o: %.c
-	$(call COMPILE, $<, $@)
-
-libarch$(LIBEXT): $(OBJS)
-	@( for obj in $(OBJS) ; do \
-		$(call ARCHIVE, $@, $${obj}); \
-	done ; )
-
-board/libboard$(LIBEXT):
-	$(MAKE) -C board TOPDIR=$(TOPDIR) libboard$(LIBEXT)
-
-nuttx: $(LINKOBJS) board/libboard$(LIBEXT)
-	$(LD) --entry=__start $(LDFLAGS) $(LDPATHES) -L$(BOARDDIR) -o $(TOPDIR)/$@ $(LINKOBJS) \
-		--start-group $(LDLIBS) -lboard --end-group $(EXTRA_LIBS) $(LIBGCC) 
-	@$(NM) $(TOPDIR)/$@ | \
-	grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
-	sort > $(TOPDIR)/System.map
-	@export vflashstart=`$(OBJDUMP) --all-headers $(TOPDIR)/$@ | grep _vflashstart | cut -d' ' -f1`;  \
-	if [ ! -z "$$vflashstart" ]; then \
-		$(OBJCOPY) --adjust-section-vma=.vector=0x$$vflashstart $(TOPDIR)/$@ $(TOPDIR)/$@.flashimage; \
-		mv $(TOPDIR)/$@.flashimage $(TOPDIR)/$@; \
-	fi
-ifeq ($(CONFIG_RRLOAD_BINARY),y)
-	@$(TOPDIR)/tools/mkimage.sh --Prefix $(CROSSDEV) $(TOPDIR)/$@ $(TOPDIR)/$@.rr
-	@if [ -w /tftpboot ] ; then \
-		cp -f $(TOPDIR)/$@.rr /tftpboot/$@.rr.${CONFIG_ARCH}; \
-	fi
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@$(MAKE) -C board TOPDIR=$(TOPDIR) depend
-	@touch $@
-
-depend: .depend
-
-clean:
-	@if [ -e board/Makefile ]; then \
-		$(MAKE) -C board TOPDIR=$(TOPDIR) clean ; \
-	fi
-	@rm -f libarch$(LIBEXT) *~ .*.swp
-	$(call CLEAN)
-
-distclean: clean
-	@if [ -e board/Makefile ]; then \
-		$(MAKE) -C board TOPDIR=$(TOPDIR) distclean ; \
-	fi
-	rm -f Make.dep .depend
-
--include Make.dep
diff --git a/nuttx/arch/c5471/src/c5471.h b/nuttx/arch/c5471/src/c5471.h
deleted file mode 100644
index 9c085d7d7..000000000
--- a/nuttx/arch/c5471/src/c5471.h
+++ /dev/null
@@ -1,379 +0,0 @@
-/************************************************************
- * c5471.h
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-#ifndef __C5471_H
-#define __C5471_H
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-
-#ifndef __ASSEMBLY__
-# include <sys/types.h>
-#endif
-
-#if defined(CONFIG_ARCH_BOARD_C5471EVM)
-# include <arch/board/c5471evm.h>
-#else
-# warning "Undefined C5471 Board"
-#endif
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/* Arm7Tdmi *************************************************/
-
-/* CPSR bits */
-
-#define USR26_MODE             0x00
-#define FIQ26_MODE             0x01
-#define IRQ26_MODE             0x02
-#define SVC26_MODE             0x03
-#define USR_MODE               0x10
-#define FIQ_MODE               0x11
-#define IRQ_MODE               0x12
-#define SVC_MODE               0x13
-#define ABT_MODE               0x17
-#define UND_MODE               0x1b
-#define SYSTEM_MODE            0x1f
-#define MODE_MASK              0x1f
-#define T_BIT                  0x20
-#define F_BIT                  0x40
-#define I_BIT                  0x80
-#define CC_V_BIT               (1 << 28)
-#define CC_C_BIT               (1 << 29)
-#define CC_Z_BIT               (1 << 30)
-#define CC_N_BIT               (1 << 31)
-
-/* UARTs ****************************************************/
-
-#define UART_IRDA_BASE         0xffff0800
-#define UART_MODEM_BASE        0xffff1000
-#define UARTn_IO_RANGE         0x00000800
-
-/* Common UART Registers.  Expressed as offsets from the BASE address */
-
-#define UART_RHR_OFFS          0x00000000 /* Rcv Holding Register */
-#define UART_THR_OFFS          0x00000004 /* Xmit Holding Register */
-#define UART_FCR_OFFS          0x00000008 /* FIFO Control Register */
-#define UART_RFCR_OFFS         0x00000008 /* Rcv FIFO Control Register */
-#define UART_TFCR_OFFS         0x00000008 /* Xmit FIFO Control Register */
-#define UART_SCR_OFFS          0x0000000c /* Status Control Register */
-#define UART_LCR_OFFS          0x00000010 /* Line Control Register */
-#define UART_LSR_OFFS          0x00000014 /* Line Status Register */
-#define UART_SSR_OFFS          0x00000018 /* Supplementary Status Register */
-#define UART_MCR_OFFS          0x0000001c /* Modem Control Register */
-#define UART_MSR_OFFS          0x00000020 /* Modem Status Register */
-#define UART_IER_OFFS          0x00000024 /* Interrupt Enable Register */
-#define UART_ISR_OFFS          0x00000028 /* Interrupt Status Register */
-#define UART_EFR_OFFS          0x0000002c /* Enhanced Feature Register */
-#define UART_XON1_OFFS         0x00000030 /* XON1 Character Register */
-#define UART_XON2_OFFS         0x00000034 /* XON2 Character Register */
-#define UART_XOFF1_OFFS        0x00000038 /* XOFF1 Character Register */
-#define UART_XOFF2_OFFS        0x0000003c /* XOFF2 Character Register */
-#define UART_SPR_OFFS          0x00000040 /* Scratch-pad Register */
-#define UART_DIV_115K_OFFS     0x00000044 /* Divisor for baud generation */
-#define UART_DIV_BIT_RATE_OFFS 0x00000048 /* For baud rate generation */
-#define UART_TCR_OFFS          0x0000004c /* Transmission Control Register */
-#define UART_TLR_OFFS          0x00000050 /* Trigger Level Register */
-#define UART_MDR_OFFS          0x00000054 /* Mode Definition Register */
-
-/* Registers available only for the IrDA UART (absolute address). */
-
-#define UART_IRDA_MDR1         0xffff0854 /* Mode Definition Register 1 */
-#define UART_IRDA_MDR2         0xffff0858 /* Mode Definition Register 2 */
-#define UART_IRDA_TXFLL        0xffff085c /* LS Xmit Frame Length Register */
-#define UART_IRDA_TXFLH        0xffff0860 /* MS Xmit Frame Length Register */
-#define UART_IRDA_RXFLL        0xffff0864 /* LS Rcvd Frame Length Register */
-#define UART_IRDA_RXFLH        0xffff0868 /* MS Rcvd Frame Length Register */
-#define UART_IRDA_SFLSR        0xffff086c /* Status FIFO Line Status Reg */
-#define UART_IRDA_SFREGL       0xffff0870 /* LS Status FIFO Register */
-#define UART_IRDA_SFREGH       0xffff0874 /* MS Status FIFO Register */
-#define UART_IRDA_BLR          0xffff0878 /* Begin of File Length Register */
-#define UART_IRDA_PULSE_WIDTH  0xffff087c /* Pulse Width Register */
-#define UART_IRDA_ACREG        0xffff0880 /* Auxiliary Control Register */
-#define UART_IRDA_PULSE_START  0xffff0884 /* Start time of pulse */
-#define UART_IRDA_RX_W_PTR     0xffff0888 /* RX FIFO write pointer */
-#define UART_IRDA_RX_R_PTR     0xffff088c /* RX FIFO read pointer */
-#define UART_IRDA_TX_W_PTR     0xffff0890 /* TX FIFO write pointer */
-#define UART_IRDA_TX_R_PTR     0xffff0894 /* TX FIFO read pointer */
-#define UART_IRDA_STATUS_W_PTR 0xffff0898 /* Write pointer of status FIFO */
-#define UART_IRDA_STATUS_R_PTR 0xffff089c /* Read pointer of status FIFO */
-#define UART_IRDA_RESUME       0xffff08a0 /* Resume register */
-#define UART_IRDA_MUX          0xffff08a4 /* Selects UART_IRDA output mux */
-
-/* Registers available for the Modem UART (absolute addresses) */
-
-#define UART_MODEM_MDR         0xffff1054 /* Mode Definition Register */
-#define UART_MODEM_UASR        0xffff1058 /* UART Auto-baud Status Register */
-#define UART_MODEM_RDPTR_URX   0xffff105c /* RX FIFO Read Pointer Register */
-#define UART_MODEM_WRPTR_URX   0xffff1060 /* RX FIFO Write Pointer Register */
-#define UART_MODEM_RDPTR_UTX   0xffff1064 /* TX FIFO Read Pointer Register */
-#define UART_MODEM_WRPTR_UTX   0xffff1068 /* TX FIFO Write Pointer Register */
-
-/* UART Settings ********************************************/
-
-/* Miscellaneous UART settings. */
-
-#define UART_RX_FIFO_NOEMPTY 0x00000001
-#define UART_SSR_TXFULL      0x00000001
-#define UART_LSR_TREF        0x00000020
-
-#define UART_XMIT_FIFO_SIZE      64
-#define UART_IRDA_XMIT_FIFO_SIZE 64
-
-/* UART_LCR Register */
-                                        /* Bits 31-7: Reserved */
-#define UART_LCR_BOC         0x00000040 /* Bit 6: Break Control */
-                                        /* Bit 5: Parity Type 2 */
-#define UART_LCR_PAREVEN     0x00000010 /* Bit 4: Parity Type 1 */
-#define UART_LCR_PARODD      0x00000000
-#define UART_LCR_PAREN       0x00000008 /* Bit 3: Paity Enable */
-#define UART_LCR_PARDIS      0x00000000
-#define UART_LCR_2STOP       0x00000004 /* Bit 2: Number of stop bits */
-#define UART_LCR_1STOP       0x00000000
-#define UART_LCR_5BITS       0x00000000 /* Bits 0-1: Word-length */
-#define UART_LCR_6BITS       0x00000001
-#define UART_LCR_7BITS       0x00000002
-#define UART_LCR_8BITS       0x00000003
-
-#define UART_FCR_FTL         0x00000000
-#define UART_FCR_FIFO_EN     0x00000001
-#define UART_FCR_TX_CLR      0x00000002
-#define UART_FCR_RX_CLR      0x00000004
-
-#define UART_IER_RECVINT     0x00000001
-#define UART_IER_XMITINT     0x00000002
-#define UART_IER_LINESTSINT  0x00000004
-#define UART_IER_MODEMSTSINT 0x00000008 /* IrDA UART only */
-#define UART_IER_XOFFINT     0x00000020
-#define UART_IER_RTSINT      0x00000040 /* IrDA UART only */
-#define UART_IER_CTSINT      0x00000080 /* IrDA UART only */
-#define UART_IER_INTMASK     0x000000ff
-
-#define BAUD_115200          0x00000001
-#define BAUD_57600           0x00000002
-#define BAUD_38400           0x00000003
-#define BAUD_19200           0x00000006
-#define BAUD_9600            0x0000000C
-#define BAUD_4800            0x00000018
-#define BAUD_2400            0x00000030
-#define BAUD_1200            0x00000060
-
-#define MDR_UART_MODE        0x00000000  /* Both IrDA and Modem UARTs */
-#define MDR_SIR_MODE         0x00000001  /* IrDA UART only */
-#define MDR_AUTOBAUDING_MODE 0x00000002  /* Modem UART only */
-#define MDR_RESET_MODE       0x00000007  /* Both IrDA and Modem UARTs */
-
-/* SPI ******************************************************/
-
-#define MAX_SPI 3
-
-#define SPI_REGISTER_BASE    0xffff2000
-
-/* GIO ******************************************************/
-
-#define MAX_GIO (35)
-
-#define GIO_REGISTER_BASE    0xffff2800
-
-#define GPIO_IO              0xffff2800 /* Writeable when I/O is configured
-					 * as an output; reads value on I/O
-					 * pin when I/O is configured as an
-					 * input */
-#define GPIO_CIO             0xffff2804 /* GPIO configuration register */
-#define GPIO_IRQA            0xffff2808 /* In conjunction with GPIO_IRQB
-					 * determines the behavior when GPIO
-					 * pins configured as input IRQ */
-#define GPIO_IRQB            0xffff280c /* Determines the behavior when GPIO
-					 * pins configured as input IRQ */
-#define GPIO_DDIO            0xffff2810 /* Delta Detect Register
-					 * (detects changes in the I/O pins) */
-#define GPIO_EN              0xffff2814 /* Selects register for muxed GPIOs */
-
-#define KGIO_REGISTER_BASE   0xffff2900
-
-#define KBGPIO_IO            0xffff2900 /* Keyboard I/O bits: Writeable
-					 * when KBGPIO is configured as an
-					 * output; reads value on I/O pin
-					 * when KBGPIO is configured as an
-					 * input */
-#define KBGPIO_CIO           0xffff2904 /* KBGPIO configuration register */
-#define KBGPIO_IRQA          0xffff2908 /* In conjunction with KBGPIO_IRQB
-					 * determines the behavior when
-					 * KBGPIO pins configured as input
-					 * IRQ */
-#define KBGPIO_IRQB          0xffff290c /* In conjunction with KBGPIO_IRQA
-					 * determines the behavior when
-					 * KBGPIO pins configured as input
-					 * IRQ */
-#define KBGPIO_DDIO          0xffff2910 /* Delta Detect Register (detects
-					 * changes in the KBGPIO pins) */
-#define KBGPIO_EN            0xffff2914 /* Selects register for muxed
-					 * KBGPIOs */
-
-/* Timers ***************************************************/
-
-#define C5471_TIMER0_CTRL    0xffff2a00
-#define C5471_TIMER0_CNT     0xffff2a04
-#define C5471_TIMER1_CTRL    0xffff2b00
-#define C5471_TIMER1_CNT     0xffff2b04
-#define C5471_TIMER2_CTRL    0xffff2c00
-
-#define C5471_TIMER2_CNT     0xffff2c04
-
-/* Interrupts */
-
-#define HAVE_SRC_IRQ_BIN_REG 0
-
-#define INT_FIRST_IO         0xffff2d00
-#define INT_IO_RANGE         0x5C
-
-#define IT_REG               0xffff2d00
-#define MASK_IT_REG          0xffff2d04
-#define SRC_IRQ_REG          0xffff2d08
-#define SRC_FIQ_REG          0xffff2d0c
-#define SRC_IRQ_BIN_REG      0xffff2d10
-#define INT_CTRL_REG         0xffff2d18
-
-#define ILR_IRQ0_REG         0xffff2d1C /*  0-Timer 0       */
-#define ILR_IRQ1_REG         0xffff2d20 /*  1-Timer 1       */
-#define ILR_IRQ2_REG         0xffff2d24 /*  2-Timer 2       */
-#define ILR_IRQ3_REG         0xffff2d28 /*  3-GPIO0         */
-#define ILR_IRQ4_REG         0xffff2d2c /*  4-Ethernet      */
-#define ILR_IRQ5_REG         0xffff2d30 /*  5-KBGPIO[7:0]   */
-#define ILR_IRQ6_REG         0xffff2d34 /*  6-Uart   serial */
-#define ILR_IRQ7_REG         0xffff2d38 /*  7-Uart   IRDA   */
-#define ILR_IRQ8_REG         0xffff2d3c /*  8-KBGPIO[15:8]  */
-#define ILR_IRQ9_REG         0xffff2d40 /*  9-GPIO3         */
-#define ILR_IRQ10_REG        0xffff2d44 /* 10-GPIO2         */
-#define ILR_IRQ11_REG        0xffff2d48 /* 11-I2C           */
-#define ILR_IRQ12_REG        0xffff2d4c /* 12-GPIO1         */
-#define ILR_IRQ13_REG        0xffff2d50 /* 13-SPI           */
-#define ILR_IRQ14_REG        0xffff2d54 /* 14-GPIO[19:4]    */
-#define ILR_IRQ15_REG        0xffff2d58 /* 15-API           */
-
-/* I2C ******************************************************/
-
-#define MAX_I2C 1
-
-/* API ******************************************************/
-
-#define DSPRAM_BASE          0xffe00000  /* DSPRAM base address */
-#define DSPRAM_END           0xffe03fff
-
-/* This is the API address range in the DSP address space. */
-
-#define DSPMEM_DSP_START     0x2000
-#define DSPMEM_DSP_END       0x3fff
-
-/* This is the API address range in the ARM address space. */
-
-#define DSPMEM_ARM_START     DSPRAM_BASE /* Defined in hardware.h */
-#define DSPMEM_ARM_END       DSPRAM_END
-
-/* DSPMEM_IN_RANGE is a generic macro to test is a value is within
- * a range of values.
- */
-
-#define DSPMEM_IN_RANGE(addr, start, end) \
-  ((((__u32)(addr)) >= (start)) && (((__u32)(addr)) <= (end)))
-
-/* DSPMEM_ADDR_ALIGNED verifies that a potential DSP address is
- * properly word aligned.
- */
-
-#define DSPMEM_ADDR_ALIGNED(addr, cpu) ((((__u32)(addr)) & 1) == 0)
-
-/* DSPMEM_DSP_ADDR checks if a DSP address lies in within the
- * DSP's API address range.
- */
-
-#define DSPMEM_DSP_ADDR(addr, cpu) \
-  DSPMEM_IN_RANGE(addr, DSPMEM_DSP_START, DSPMEM_DSP_END)
-
-/* DSPMEM_ARM_ADDR checks if a ARM address lies in within the
- * ARM's API address range.
- */
-
-#define DSPMEM_ARM_ADDR(addr) \
-  DSPMEM_IN_RANGE(addr, DSPMEM_ARM_START, DSPMEM_ARM_END)
-
-/* DSPMEM_DSP_TO_ARM maps a DSP API address into an ARM API address */
-
-#define DSPMEM_DSP_TO_ARM(addr, cpu) \
-  ((((__u32)(addr) - DSPMEM_DSP_START) << 1) + DSPMEM_ARM_START)
-
-/* DSPMEM_ARM_TO_DSP maps an ARM API address into a DSP API address */
-
-#define DSPMEM_ARM_TO_DSP(addr) \
-  ((((__u32)(addr) - DSPMEM_ARM_START) >> 1) + DSPMEM_DSP_START)
-
-/************************************************************
- * Inline Functions
- ************************************************************/
-
-#ifndef __ASSEMBLY__
-
-# define getreg8(a)   (*(volatile ubyte *)(a))
-# define putreg8(v,a) (*(volatile ubyte *)(a) = (v))
-# define getreg32(a)   (*(volatile uint32 *)(a))
-# define putreg32(v,a) (*(volatile uint32 *)(a) = (v))
-
-
-/* Some compiler options will convert short loads and stores into byte loads
- * and stores.  We don't want this to happen for IO reads and writes!
- */
-
-/* # define getreg16(a)   (*(volatile uint16 *)(a)) */
-static inline unsigned short getreg16(unsigned int addr)
-{
-  unsigned short retval;
- __asm__ __volatile__("\tldrh %0, [%1]\n\t" : "=r"(retval) : "r"(addr));
-  return retval;
-}
-
-/* define putreg16(v,a) (*(volatile uint16 *)(a) = (v)) */
-static inline void putreg16(uint16 val, unsigned int addr)
-{
- __asm__ __volatile__("\tstrh %0, [%1]\n\t": : "r"(val), "r"(addr));
-}
-
-#endif
-
-#endif  /* __C5471_H */
diff --git a/nuttx/arch/c5471/src/up_allocateheap.c b/nuttx/arch/c5471/src/up_allocateheap.c
deleted file mode 100644
index 3ee7a6820..000000000
--- a/nuttx/arch/c5471/src/up_allocateheap.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/************************************************************
- * up_allocateheap.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "up_internal.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_allocate_heap
- *
- * Description:
- *   The heap may be statically allocated by
- *   defining CONFIG_HEAP_BASE and CONFIG_HEAP_SIZE.  If these
- *   are not defined, then this function will be called to
- *   dynamically set aside the heap region.
- *
- ************************************************************/
-
-void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
-{
-  up_ledon(LED_HEAPALLOCATE);
-  *heap_start = (FAR void*)g_heapbase;
-  *heap_size = CONFIG_DRAM_END - g_heapbase;
-}
diff --git a/nuttx/arch/c5471/src/up_assert.c b/nuttx/arch/c5471/src/up_assert.c
deleted file mode 100644
index 0dad02f89..000000000
--- a/nuttx/arch/c5471/src/up_assert.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/************************************************************
- * up_assert.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <debug.h>
-#include <nuttx/irq.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_getsp
- ************************************************************/
-
-/* I don't know if the builtin to get SP is enabled */
-
-static inline uint32 up_getsp(void)
-{
-  uint32 sp;
-  __asm__
-  (
-    "\tmov %0, sp\n\t"
-    : "=r"(sp)
-  );
-  return sp;
-}
-
-/************************************************************
- * Name: up_stackdump
- ************************************************************/
-
-#ifdef CONFIG_ARCH_STACKDUMP
-static void up_stackdump(void)
-{
-  _TCB *rtcb        = (_TCB*)g_readytorun.head;
-  uint32 sp         = up_getsp();
-  uint32 stack_base;
-  uint32 stack_size;
-
-  if (rtcb->pid == 0)
-    {
-      stack_base = g_heapbase - 4;
-      stack_size = CONFIG_PROC_STACK_SIZE;
-    }
-  else
-    {
-      stack_base = (uint32)rtcb->adj_stack_ptr;
-      stack_size = (uint32)rtcb->adj_stack_size;
-    }
-
-  lldbg("stack_base: %08x\n", stack_base);
-  lldbg("stack_size: %08x\n", stack_size);
-  lldbg("sp:         %08x\n", sp);
-
-  if (sp >= stack_base || sp < stack_base - stack_size)
-    {
-      lldbg("ERROR: Stack pointer is not within allocated stack\n");
-      return;
-    }
-  else
-    {
-      uint32 stack = sp & ~0x1f;
-
-      for (stack = sp & ~0x1f; stack < stack_base; stack += 32)
-        {
-          uint32 *ptr = (uint32*)stack;
-          lldbg("%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
-                 stack, ptr[0], ptr[1], ptr[2], ptr[3],
-                 ptr[4], ptr[5], ptr[6], ptr[7]);
-        }
-    }
-}
-#else
-# define up_stackdump()
-#endif
-
-/************************************************************
- * Name: _up_assert
- ************************************************************/
-
-static void _up_assert(int errorcode) /* __attribute__ ((noreturn)) */
-{
-  /* Are we in an interrupt handler or the idle task? */
-
-  if (current_regs || ((_TCB*)g_readytorun.head)->pid == 0)
-    {
-       (void)irqsave();
-        for(;;)
-          {
-#ifdef CONFIG_ARCH_LEDS
-            up_ledon(LED_PANIC);
-            up_delay(250);
-            up_ledoff(LED_PANIC);
-            up_delay(250);
-#endif
-          }
-    }
-  else
-    {
-      exit(errorcode);
-    }
-}
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_assert
- ************************************************************/
-
-void up_assert(const ubyte *filename, int lineno)
-{
-#if CONFIG_TASK_NAME_SIZE > 0
-  _TCB *rtcb = (_TCB*)g_readytorun.head;
-#endif
-
-  up_ledon(LED_ASSERTION);
-#if CONFIG_TASK_NAME_SIZE > 0
-  lldbg("Assertion failed at file:%s line: %d task: %s\n",
-        filename, lineno, rtcb->name);
-#else
-  lldbg("Assertion failed at file:%s line: %d\n",
-        filename, lineno);
-#endif
-  up_stackdump();
-  _up_assert(EXIT_FAILURE);
-}
-
-/************************************************************
- * Name: up_assert_code
- ************************************************************/
-
-void up_assert_code(const ubyte *filename, int lineno, int errorcode)
-{
-#if CONFIG_TASK_NAME_SIZE > 0
-  _TCB *rtcb = (_TCB*)g_readytorun.head;
-#endif
-
-  up_ledon(LED_ASSERTION);
-#if CONFIG_TASK_NAME_SIZE > 0
-  lldbg("Assertion failed at file:%s line: %d task: %s error code: %d\n",
-        filename, lineno, rtcb->name, errorcode);
-#else
-  lldbg("Assertion failed at file:%s line: %d error code: %d\n",
-        filename, lineno, errorcode);
-#endif
-  up_stackdump();
-  _up_assert(errorcode);
-}
diff --git a/nuttx/arch/c5471/src/up_blocktask.c b/nuttx/arch/c5471/src/up_blocktask.c
deleted file mode 100644
index ce2f430ff..000000000
--- a/nuttx/arch/c5471/src/up_blocktask.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/************************************************************
- * up_blocktask.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Funtions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_block_task
- *
- * Description:
- *   The currently executing task at the head of
- *   the ready to run list must be stopped.  Save its context
- *   and move it to the inactive list specified by task_state.
- *
- * Inputs:
- *   tcb: Refers to a task in the ready-to-run list (normally
- *     the task at the the head of the list).  It most be
- *     stopped, its context saved and moved into one of the
- *     waiting task lists.  It it was the task at the head
- *     of the ready-to-run list, then a context to the new
- *     ready to run task must be performed.
- *   task_state: Specifies which waiting task list should be
- *     hold the blocked task TCB.
- *
- ************************************************************/
-
-void up_block_task(_TCB *tcb, tstate_t task_state)
-{
-  /* Verify that the context switch can be performed */
-
-  if ((tcb->task_state < FIRST_READY_TO_RUN_STATE) ||
-      (tcb->task_state > LAST_READY_TO_RUN_STATE))
-    {
-      PANIC(OSERR_BADBLOCKSTATE);
-    }
-  else
-    {
-      _TCB *rtcb = (_TCB*)g_readytorun.head;
-      boolean switch_needed;
-
-      lldbg("Blocking TCB=%p\n", tcb);
-
-      /* Remove the tcb task from the ready-to-run list.  If we
-       * are blocking the task at the head of the task list (the
-       * most likely case), then a context switch to the next
-       * ready-to-run task is needed. In this case, it should
-       * also be true that rtcb == tcb.
-       */
-
-      switch_needed = sched_removereadytorun(tcb);
-
-      /* Add the task to the specified blocked task list */
-
-      sched_addblocked(tcb, (tstate_t)task_state);
-
-      /* If there are any pending tasks, then add them to the g_readytorun
-       * task list now
-       */
-
-      if (g_pendingtasks.head)
-        {
-          switch_needed |= sched_mergepending();
-        }
-
-      /* Now, perform the context switch if one is needed */
-
-      if (switch_needed)
-        {
-          /* Are we in an interrupt handler? */
-
-          if (current_regs)
-            {
-              /* Yes, then we have to do things differently.
-               * Just copy the current_regs into the OLD rtcb.
-               */
-
-               up_copystate(rtcb->xcp.regs, current_regs);
-
-              /* Restore the exception context of the rtcb at the (new) head 
-               * of the g_readytorun task list.
-               */
-
-              rtcb = (_TCB*)g_readytorun.head;
-              lldbg("New Active Task TCB=%p\n", rtcb);
-
-              /* Then switch contexts */
-
-              up_copystate(current_regs, rtcb->xcp.regs);
-            }
-
-          /* Copy the user C context into the TCB at the (old) head of the
-           * g_readytorun Task list. if up_saveusercontext returns a non-zero
-           * value, then this is really the previously running task restarting!
-           */
-
-          else if (!up_saveusercontext(rtcb->xcp.regs))
-            {
-              /* Restore the exception context of the rtcb at the (new) head 
-               * of the g_readytorun task list.
-               */
-
-              rtcb = (_TCB*)g_readytorun.head;
-              lldbg("New Active Task TCB=%p\n", rtcb);
-
-              /* Then switch contexts */
-
-              up_fullcontextrestore(rtcb->xcp.regs);
-            }
-        }
-    }
-}
diff --git a/nuttx/arch/c5471/src/up_copystate.c b/nuttx/arch/c5471/src/up_copystate.c
deleted file mode 100644
index bd9db8161..000000000
--- a/nuttx/arch/c5471/src/up_copystate.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/************************************************************
- * up_copystate.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_undefinedinsn
- ************************************************************/
-
-/* A little faster than most memcpy's */
-
-void up_copystate(uint32 *dest, uint32 *src)
-{
-  int i;
-  for (i = 0; i < XCPTCONTEXT_REGS; i++)
-    {
-      *dest++ = *src++;
-    }
-}
-
diff --git a/nuttx/arch/c5471/src/up_createstack.c b/nuttx/arch/c5471/src/up_createstack.c
deleted file mode 100644
index 5af781c51..000000000
--- a/nuttx/arch/c5471/src/up_createstack.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/************************************************************
- * up_createstack.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/kmalloc.h>
-#include <nuttx/arch.h>
-#include "up_internal.h"
-
-/************************************************************
- * Private Types
- ************************************************************/
-
-/************************************************************
- * Private Function Prototypes
- ************************************************************/
-
-/************************************************************
- * Global Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_create_stack
- *
- * Description:
- *   Allocate a stack for a new thread and setup
- *   up stack-related information in the TCB.
- *
- *   The following TCB fields must be initialized:
- *   adj_stack_size: Stack size after adjustment for hardware,
- *     processor, etc.  This value is retained only for debug
- *     purposes.
- *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
- *     initial value of the stack pointer.
- *
- * Inputs:
- *   tcb: The TCB of new task
- *   stack_size:  The requested stack size.  At least this much
- *     must be allocated.
- ************************************************************/
-
-STATUS up_create_stack(_TCB *tcb, size_t stack_size)
-{
-  if (tcb->stack_alloc_ptr &&
-      tcb->adj_stack_size != stack_size)
-    {
-      sched_free(tcb->stack_alloc_ptr);
-      tcb->stack_alloc_ptr = NULL;
-    }
-
-   if (!tcb->stack_alloc_ptr)
-     {
-       tcb->stack_alloc_ptr = (uint32 *)kzmalloc(stack_size);
-     }
-
-   if (tcb->stack_alloc_ptr)
-     {
-       size_t top_of_stack;
-       size_t size_of_stack;
-
-       /* The Arm7Tdmi uses a push-down stack:  the stack grows
-	* toward loweraddresses in memory.  The stack pointer
-	* register, points to the lowest, valid work address
-	* (the "top" of the stack).  Items on the stack are
-	* referenced as positive word offsets from sp.
-	*/
-
-       top_of_stack = (uint32)tcb->stack_alloc_ptr + stack_size - 4;
-
-       /* The Arm7Tdmi stack must be aligned at word (4 byte)
-	* boundaries. If necessary top_of_stack must be rounded
-	* down to the next boundary
-	*/
-
-       top_of_stack &= ~3;
-       size_of_stack = top_of_stack - (uint32)tcb->stack_alloc_ptr + 4;
-
-       /* Save the adjusted stack values in the _TCB */
-
-       tcb->adj_stack_ptr  = (uint32*)top_of_stack;
-       tcb->adj_stack_size = size_of_stack;
-
-       up_ledon(LED_STACKCREATED);
-       return OK;
-     }
-
-   return ERROR;
-}
diff --git a/nuttx/arch/c5471/src/up_dataabort.c b/nuttx/arch/c5471/src/up_dataabort.c
deleted file mode 100644
index ca1ade723..000000000
--- a/nuttx/arch/c5471/src/up_dataabort.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/************************************************************
- * up_dataabort.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_dataabort
- ************************************************************/
-
-void up_dataabort(uint32 *regs)
-{
-  PANIC(OSERR_ERREXCEPTION);
-}
diff --git a/nuttx/arch/c5471/src/up_delay.c b/nuttx/arch/c5471/src/up_delay.c
deleted file mode 100644
index 373602d53..000000000
--- a/nuttx/arch/c5471/src/up_delay.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/************************************************************
- * up_delay.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <semaphore.h>
-#include <string.h>
-#include <errno.h>
-#include <debug.h>
-#include <nuttx/irq.h>
-#include <nuttx/arch.h>
-#include <nuttx/fs.h>
-#include <arch/serial.h>
-#include "c5471.h"
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-#define LOOPS_PER_MSEC 1250
-
-/************************************************************
- * Private Types
- ************************************************************/
-
-/************************************************************
- * Private Function Prototypes
- ************************************************************/
-
-/************************************************************
- * Private Variables
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_delay
- *
- * Description:
- *   Delay inline for the requested number of milliseconds.
- *   NOT multi-tasking friendly.
- *
- ************************************************************/
-
-void up_delay(int milliseconds)
-{
-  volatile int i;
-  volatile int j;
-
-  for (i = 0; i < milliseconds; i++)
-    {
-        for (j = 0; j < LOOPS_PER_MSEC; j++)
-          {
-          }
-    }
-}
diff --git a/nuttx/arch/c5471/src/up_doirq.c b/nuttx/arch/c5471/src/up_doirq.c
deleted file mode 100644
index 73d6f8a76..000000000
--- a/nuttx/arch/c5471/src/up_doirq.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/************************************************************
- * up_doirq.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <nuttx/irq.h>
-#include <nuttx/arch.h>
-#include <assert.h>
-#include "c5471.h"
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Public Data
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-void up_doirq(int irq, uint32* regs)
-{
-  up_ledon(LED_INIRQ);
-#ifdef CONFIG_SUPPRESS_INTERRUPTS
-  PANIC(OSERR_ERREXCEPTION);
-#else
-  if ((unsigned)irq < NR_IRQS)
-    {
-       /* Current regs non-zero indicates that we are processing
-        * an interrupt; current_regs is also used to manage
-        * interrupt level context switches.
-        */
-
-       current_regs = regs;
-
-       /* Mask and acknowledge the interrupt */
-
-       up_maskack_irq(irq);
-
-       /* Deliver the IRQ */
-
-       irq_dispatch(irq, regs);
-
-       /* Indicate that we are no long in an interrupt handler */
-
-       current_regs = NULL;
-
-       /* Unmask the last interrupt (global interrupts are still
-        * disabled.
-        */
-
-       up_enable_irq(irq);
-    }
-  up_ledoff(LED_INIRQ);
-#endif
-}
diff --git a/nuttx/arch/c5471/src/up_exit.c b/nuttx/arch/c5471/src/up_exit.c
deleted file mode 100644
index 4d117fce4..000000000
--- a/nuttx/arch/c5471/src/up_exit.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/****************************************************************************
- * up_exit.c
- *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-#ifdef CONFIG_DUMP_ON_EXIT
-#include <nuttx/fs.h>
-#endif
-
-/****************************************************************************
- * Private Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: _up_dumponexit
- *
- * Description:
- *   Dump the state of all tasks whenever on task exits.  This is debug
- *   instrumentation that was added to check file-related reference counting
- *   but could be useful again sometime in the future.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_DUMP_ON_EXIT) && defined(CONFIG_DEBUG)
-static void _up_dumponexit(FAR _TCB *tcb, FAR void *arg)
-{
-  int i;
-
-  lldbg("  TCB=%p name=%s\n", tcb, tcb->argv[0]);
-  if (tcb->filelist)
-    {
-      lldbg("    filelist refcount=%d\n",
-            tcb->filelist->fl_crefs);
-
-      for (i = 0; i < CONFIG_NFILE_DESCRIPTORS; i++)
-        {
-          struct inode *inode = tcb->filelist->fl_files[i].f_inode;
-          if (inode)
-            {
-              lldbg("      fd=%d refcount=%d\n",
-                    i, inode->i_crefs);
-            }
-        }
-    }
-
-  if (tcb->streams)
-    {
-      lldbg("    streamlist refcount=%d\n",
-          tcb->streams->sl_crefs);
-
-      for (i = 0; i < CONFIG_NFILE_STREAMS; i++)
-        {
-          struct file_struct *filep = &tcb->streams->sl_streams[i];
-          if (filep->fs_filedes >= 0)
-            {
-              lldbg("      fd=%d nbytes=%d\n",
-                    filep->fs_filedes,
-                    filep->fs_bufpos - filep->fs_bufstart);
-            }
-        }
-    }
-}
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: _exit
- *
- * Description:
- *   This function causes the currently executing task to cease
- *   to exist.  This is a special case of task_delete() where the task to
- *   be deleted is the currently executing task.  It is more complex because
- *   a context switch must be perform to the the next ready to run task.
- *
- ****************************************************************************/
-
-void _exit(int status)
-{
-  _TCB* tcb;
-
-  /* Disable interrupts.  They will be restored when the next
-   * task is started.
-   */
-
-  (void)irqsave();
-
-  lldbg("TCB=%p exitting\n", tcb);
-
-#if defined(CONFIG_DUMP_ON_EXIT) && defined(CONFIG_DEBUG)
-  lldbg("Other tasks:\n");
-  sched_foreach(_up_dumponexit, NULL);
-#endif
-
-  /* Destroy the task at the head of the ready to run list. */
-
-  (void)task_deletecurrent();
-
-  /* Now, perform the context switch to the new ready-to-run task at the
-   * head of the list.
-   */
-
-  tcb = (_TCB*)g_readytorun.head;
-  lldbg("New Active Task TCB=%p\n", tcb);
-
-  /* Then switch contexts */
-
-  up_fullcontextrestore(tcb->xcp.regs);
-}
-
diff --git a/nuttx/arch/c5471/src/up_fullcontextrestore.S b/nuttx/arch/c5471/src/up_fullcontextrestore.S
deleted file mode 100644
index 4d0303ba2..000000000
--- a/nuttx/arch/c5471/src/up_fullcontextrestore.S
+++ /dev/null
@@ -1,117 +0,0 @@
-/**************************************************************************
- * up_fullcontextrestore.S
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- **************************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <nuttx/irq.h>
-#include "up_internal.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-/**************************************************************************
- * Private Types
- **************************************************************************/
-
-/**************************************************************************
- * Private Function Prototypes
- **************************************************************************/
-
-/**************************************************************************
- * Global Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-/**************************************************************************
- * Name: up_fullcontextrestore
- **************************************************************************/
-
-	.globl	up_fullcontextrestore
-	.type	up_fullcontextrestore, function
-up_fullcontextrestore:
-
-	/* On entry, a1 (r0) holds address of the register save area */
-
-	/* Recover all registers except for r0, r1, R15, and CPSR */
-
-	add	r1, r0, #(4*REG_R2)	/* Offset to REG_R2 storage */
-	ldmia	r1, {r2-r14}		/* Recover registers */
-
-	/* Create a stack frame to hold the PC */
-
-	sub	sp, sp, #(3*4)		/* Frame for three registers */
-	ldr	r1, [r0, #(4*REG_R0)]	/* Fetch the stored r0 value */
-	str	r1, [sp]		/* Save it at the top of the stack */
-	ldr	r1, [r0, #(4*REG_R1)]	/* Fetch the stored r1 value */
-	str	r1, [sp, #4]		/* Save it in the stack */
-	ldr	r1, [r0, #(4*REG_PC)]	/* Fetch the stored pc value */
-	str	r1, [sp, #8]		/* Save it at the bottom of the frame */
-
-	/* Now we can restore the CPSR.  We wait until we are completely
-	 * finished with the context save data to do this. Restore the CPSR
-	 * may re-enable and interrupts and we couldt be in a context
-	 * where save structure is only protected by interrupts being disabled.
-         */
-
-	ldr	r1, [r0, #(4*REG_CPSR)]	/* Fetch the stored CPSR value */
-	msr	cpsr, r1		/* Set the CPSR */
-
-	/* Now recover r0 and r1 */
-
-	ldr	r0, [sp]
-	ldr	r1, [sp, #4]
-	add	sp, sp, #(2*4)
-
-	/* Then return to the address at the stop of the stack,
-	 * destroying the stack frame
-	 */
-
-	ldr	pc, [sp], #4
-	.size up_fullcontextrestore, . - up_fullcontextrestore
-
diff --git a/nuttx/arch/c5471/src/up_head.S b/nuttx/arch/c5471/src/up_head.S
deleted file mode 100644
index d681a177e..000000000
--- a/nuttx/arch/c5471/src/up_head.S
+++ /dev/null
@@ -1,162 +0,0 @@
-/************************************************************
- * up_head.S
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include "up_internal.h"
-#include "c5471.h"
-
-/************************************************************
- * Macros
- ************************************************************/
-
-	/* This macro will modify r0, r1, r2 and r14 */
-
-#ifdef CONFIG_DEBUG
-	.macro	showprogress, code
-	mov	r0, #\code
-	bl	up_lowputc
-	.endm
-#else
-	.macro	showprogress, code
-	.endm
-#endif
-
-/************************************************************
- * OS Entry Point
- ************************************************************/
-
-/* We assume the bootloader has already initialized most of the h/w for
- * us and that only leaves us having to do some os specific things
- * below.
- */
-	.text
-        .global __start
-	.type	__start, #function
-__start:
-
-	/* First, setup initial processor mode */
-
-	mov	r0, #(SVC_MODE | I_BIT | F_BIT )
-	msr	cpsr, r0
-
-	showprogress 'A'
-
-	/* Setup system stack (and get the BSS range) */
-
-	adr	r0, LC0
-	ldmia   r0, {r4, r5, sp}
-
-	/* Clear system BSS section */
-
-	mov	r0, #0
-1:	cmp	r4, r5
-	strcc	r0, [r4], #4
-	bcc	1b
-
-	showprogress 'B'
-
-	/* Copy system .data sections to new home in RAM. */
-
-#ifdef CONFIG_BOOT_FROM_FLASH
-
-	adr	r3, LC2
-	ldmia	r3, {r0, r1, r2}
-
-1:	ldmia	r0!, {r3 - r10}
-	stmia	r1!, {r3 - r10}
-	cmp	r1, r2
-	blt	1b
-
-#endif
-	/* Perform early serial initialization */
-
-	mov	fp, #0
-	bl	up_earlyserialinit
-
-#ifdef CONFIG_DEBUG
-	mov	r0, #'C'
-	bl	up_putc
-	mov	r0, #'\n'
-	bl	up_putc
-#endif
-	/* Initialize onboard LEDs */
-
-#ifdef CONFIG_ARCH_LEDS
-	bl	up_ledinit
-#endif
-
-	/* Then jump to OS entry */
-
-	b	os_start
-
-	/* Variables:
-	 * _sbss is the start of the BSS region (see ld.script)
-	 * _ebss is the end of the BSS regsion (see ld.script)
-	 * The idle task stack starts at the end of BSS and is
-	 * of size CONFIG_PROC_STACK_SIZE.  The heap continues
-	 * from there until the end of memory.  See g_heapbase
-	 * below.
-	 */
-
-LC0:	.long	_sbss
-	.long	_ebss
-	.long	_ebss+CONFIG_PROC_STACK_SIZE-4
-
-#ifdef CONFIG_BOOT_FROM_FLASH
-LC2:	.long	_eronly	/* Where .data defaults are stored in FLASH */
-	.long	_sdata	/* Where .data needs to reside in SDRAM */
-	.long	_edata
-#endif
-	.size	__start, .-__start
-
-	/* This global variable is unsigned long g_heapbase and is
-	 * exported from here only because of its coupling to LCO
-	 * above.
-	 */
-
-	.data
-	.align	4
-	.globl	g_heapbase
-	.type	g_heapbase, object
-g_heapbase:
-	.long	_ebss+CONFIG_PROC_STACK_SIZE
-	.size	g_heapbase, .-g_heapbase
-
-	.end
-
diff --git a/nuttx/arch/c5471/src/up_idle.c b/nuttx/arch/c5471/src/up_idle.c
deleted file mode 100644
index 9a6bc9900..000000000
--- a/nuttx/arch/c5471/src/up_idle.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/************************************************************
- * up_idle.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <nuttx/arch.h>
-#include "up_internal.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Funtions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_idle
- *
- * Description:
- *   up_idle() is the logic that will be executed when their
- *   is no other ready-to-run task.  This is processor idle
- *   time and will continue until some interrupt occurs to
- *   cause a context switch from the idle task.
- *
- *   Processing in this state may be processor-specific. e.g.,
- *   this is where power management operations might be
- *   performed.
- *
- ************************************************************/
-
-void up_idle(void)
-{
-#if defined(CONFIG_SUPPRESS_INTERRUPTS) || defined(CONFIG_SUPPRESS_TIMER_INTS)
-  /* If the system is idle and there are no timer interrupts,
-   * then process "fake" timer interrupts. Hopefully, something
-   * will wake up.
-   */
-
-  sched_process_timer();
-#endif
-}
-
diff --git a/nuttx/arch/c5471/src/up_initialize.c b/nuttx/arch/c5471/src/up_initialize.c
deleted file mode 100644
index 04ca68914..000000000
--- a/nuttx/arch/c5471/src/up_initialize.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/************************************************************
- * up_initialize.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include <nuttx/fs.h>
-#include "up_internal.h"
-
-/************************************************************
- * Private Types
- ************************************************************/
-
-/************************************************************
- * Private Function Prototypes
- ************************************************************/
-
-/************************************************************
- * Global Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_initialize
- *
- * Description:
- *   up_initialize will be called once during OS
- *   initialization after the basic OS services have been
- *   initialized.  The architecture specific details of
- *   initializing the OS will be handled here.  Such things as
- *   setting up interrupt service routines, starting the
- *   clock, and registering device drivers are some of the
- *   things that are different for each processor and hardware
- *   platform.
- *
- *   up_initialize is called after the OS initialized but
- *   before the init process has been started and before the
- *   libraries have been initialized.  OS services and driver
- *   services are available.
- *
- ************************************************************/
-
-void up_initialize(void)
-{
-  /* Initialize global variables */
-
-  current_regs = NULL;
-
-  /* Initialize the interrupt subsystem */
-
-  up_irqinitialize();
-
-  /* Initialize the system timer interrupt */
-
-#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
-  up_timerinit();
-#endif
-
-  /* Register devices */
-
-  devnull_register();   /* Standard /dev/null */
-
-  /* Initialize the serial device driver */
-
-  up_serialinit();
-  up_ledon(LED_IRQSENABLED);
-}
diff --git a/nuttx/arch/c5471/src/up_initialstate.c b/nuttx/arch/c5471/src/up_initialstate.c
deleted file mode 100644
index 76792f695..000000000
--- a/nuttx/arch/c5471/src/up_initialstate.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/************************************************************
- * up_initialstate.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <string.h>
-#include <nuttx/arch.h>
-#include "up_internal.h"
-#include "c5471.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Funtions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_initial_state
- *
- * Description:
- *   A new thread is being started and a new TCB
- *   has been created. This function is called to initialize
- *   the processor specific portions of the new TCB.
- *
- *   This function must setup the intial architecture registers
- *   and/or  stack so that execution will begin at tcb->start
- *   on the next context switch.
- *
- ************************************************************/
-
-void up_initial_state(_TCB *tcb)
-{
-  struct xcptcontext *xcp = &tcb->xcp;
-
-  /* Initialize the initial exception register context structure */
-
-  memset(xcp, 0, sizeof(struct xcptcontext));
-  xcp->regs[REG_SP]   = (uint32)tcb->adj_stack_ptr;
-  xcp->regs[REG_PC]   = (uint32)tcb->start;
-#ifdef CONFIG_SUPPRESS_INTERRUPTS
-  xcp->regs[REG_CPSR] = SVC_MODE | I_BIT | F_BIT;
-#else
-  xcp->regs[REG_CPSR] = SVC_MODE | F_BIT;
-#endif
-}
diff --git a/nuttx/arch/c5471/src/up_internal.h b/nuttx/arch/c5471/src/up_internal.h
deleted file mode 100644
index fc3333bf9..000000000
--- a/nuttx/arch/c5471/src/up_internal.h
+++ /dev/null
@@ -1,168 +0,0 @@
-/************************************************************
- * up_internal.h
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-#ifndef __UP_INTERNAL_H
-#define __UP_INTERNAL_H
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-
-#if defined(CONFIG_ARCH_BOARD_C5471EVM)
-# include <arch/board/c5471evm.h>
-#else
-# warning "Undefined C5471 Board"
-#endif
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/* Bring-up debug configurations.  These are here (vs defconfig)
- * because these should only be controlled during low level
- * board bring-up and not part of normal platform configuration.
- */
-
-#undef  CONFIG_SUPPRESS_INTERRUPTS    /* Do not enable interrupts */
-#undef  CONFIG_SUPPRESS_TIMER_INTS    /* No timer */
-#undef  CONFIG_SUPPRESS_SERIAL_INTS   /* Console will poll */
-#define CONFIG_SUPPRESS_UART_CONFIG 1 /* Do not reconfig UART */
-#undef  CONFIG_DUMP_ON_EXIT           /* Dump task state on exit */
-
-/************************************************************
- * Public Types
- ************************************************************/
-
-#ifndef __ASSEMBLY__
-typedef void (*up_vector_t)(void);
-#endif
-
-/************************************************************
- * Public Variables
- ************************************************************/
-
-#ifndef __ASSEMBLY__
-/* This holds a references to the current interrupt level
- * register storage structure.  If is non-NULL only during
- * interrupt processing.
- */
-
-extern uint32 *current_regs;
-
-/* This is the beginning of heap as provided from up_head.S.
- * This is the first address in DRAM after the loaded
- * program+bss+idle stack.  The end of the heap is
- * CONFIG_DRAM_END
- */
-
-extern uint32 g_heapbase;
-#endif
-
-/************************************************************
- * Inline Functions
- ************************************************************/
-
-
-/************************************************************
- * Public Functions
- ************************************************************/
-
-#ifndef __ASSEMBLY__
-
-/* Defined in files with the same name as the function */
-
-extern void up_copystate(uint32 *dest, uint32 *src);
-extern void up_dataabort(uint32 *regs);
-extern void up_delay(int milliseconds);
-extern void up_doirq(int irq, uint32* regs);
-extern void up_fullcontextrestore(uint32 *regs) __attribute__ ((noreturn));
-extern void up_irqinitialize(void);
-extern void up_prefetchabort(uint32 *regs);
-extern int  up_saveusercontext(uint32 *regs);
-extern void up_sigdeliver(void);
-extern void up_syscall(uint32 *regs);
-extern int  up_timerisr(int irq, uint32 *regs);
-extern void up_undefinedinsn(uint32 *regs);
-
-#ifdef CONFIG_DEBUG
-extern void up_lowputc(char ch);
-#else
-# define up_lowputc(ch)
-#endif
-
-/* Defined in up_vectors.S */
-
-extern void up_vectorundefinsn(void);
-extern void up_vectorswi(void);
-extern void up_vectorprefetch(void);
-extern void up_vectordata(void);
-extern void up_vectoraddrexcptn(void);
-extern void up_vectorirq(void);
-extern void up_vectorfiq(void);
-
-/* Defined in up_serial.c */
-
-extern void up_earlyserialinit(void);
-extern void up_serialinit(void);
-
-/* Defined in up_watchdog.c */
-
-extern void up_wdtinit(void);
-
-/* Defined in up_timerisr.c */
-
-extern void up_timerinit(void);
-
-/* Defined in up_irq.c */
-
-extern void up_maskack_irq(int irq);
-
-/* Defined in up_leds.c */
-
-#ifdef CONFIG_ARCH_LEDS
-extern void up_ledinit(void);
-extern void up_ledon(int led);
-extern void up_ledoff(int led);
-#else
-# define up_ledinit()
-# define up_ledon(led)
-# define up_ledoff(led)
-#endif
-
-#endif /* __ASSEMBLY__ */
-
-#endif  /* __UP_INTERNAL_H */
diff --git a/nuttx/arch/c5471/src/up_interruptcontext.c b/nuttx/arch/c5471/src/up_interruptcontext.c
deleted file mode 100644
index b6df69ea4..000000000
--- a/nuttx/arch/c5471/src/up_interruptcontext.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/************************************************************
- * up_interruptcontext.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <nuttx/arch.h>
-#include <nuttx/irq.h>
-#include "up_internal.h"
-
-/************************************************************
- * Private Types
- ************************************************************/
-
-/************************************************************
- * Private Function Prototypes
- ************************************************************/
-
-/************************************************************
- * Global Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_interrupt_context
- *
- * Description: Return TRUE is we are currently executing in
- * the interrupt handler context.
- ************************************************************/
-
-boolean up_interrupt_context(void)
-{
-   return current_regs != NULL;
-}
diff --git a/nuttx/arch/c5471/src/up_irq.c b/nuttx/arch/c5471/src/up_irq.c
deleted file mode 100644
index fabd47b26..000000000
--- a/nuttx/arch/c5471/src/up_irq.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/************************************************************
- * up_irq.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <nuttx/irq.h>
-#include "c5471.h"
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-#define ILR_EDGESENSITIVE 0x00000020
-#define ILR_PRIORITY      0x0000001E
-
-/************************************************************
- * Public Data
- ************************************************************/
-
-uint32 *current_regs;
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/* The value of _vflashstart is defined in ld.script.  It
- * could be hard-coded because we know that correct IRAM
- * area is 0xffc00000.
- */
-
-extern int _svectors; /* Type does not matter */
-
-/* The C5471 has FLASH at the low end of memory.  The
- * rrload bootloaer will catch all interrupts and re-vector
- * them to vectors stored in IRAM.  The following table is
- * used to initialize those vectors.
- */
-
-static up_vector_t g_vectorinittab[] =
-{
-  (up_vector_t)NULL,
-  up_vectorundefinsn,
-  up_vectorswi,
-  up_vectorprefetch,
-  up_vectordata,
-  up_vectoraddrexcptn,
-  up_vectorirq,
-  up_vectorfiq
-};
-#define NVECTORS ((sizeof(g_vectorinittab)) / sizeof(up_vector_t))
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_ackirq
- *
- * Description:
- *   Acknowlede the IRQ.Bit 0 of the Interrupt Control
- *   Register ==  New IRQ agreement (NEW_IRQ_AGR). Reset IRQ
- *   output. Clear source IRQ register. Enables a new IRQ
- *   generation. Reset by internal logic.
- *
- ************************************************************/
-
-static inline void up_ackirq(unsigned int irq)
-{
-  uint32 reg;
-  reg = getreg32(SRC_IRQ_REG);              /* Insure appropriate IT_REG bit clears */
-  putreg32(reg | 0x00000001, INT_CTRL_REG); /* write the NEW_IRQ_AGR bit. */
-}
-
-/************************************************************
- * Name: up_ackfiq
- *
- * Description:
- *   Acknowledge the FIQ.  Bit 1 of the Interrupt Control
- *   Register ==  New FIQ agreement (NEW_FIQ_AGR). Reset FIQ
- *   output. Clear source FIQ register. Enables a new FIQ
- *   generation. Reset by internal logic.
- *
- ************************************************************/
-
-static inline void up_ackfiq(unsigned int irq)
-{
-  uint32 reg;
-  reg = getreg32(SRC_FIQ_REG);              /* Insure appropriate IT_REG bit clears */
-  putreg32(reg | 0x00000002, INT_CTRL_REG); /* write the NEW_FIQ_AGR bit. */
-}
-
-/************************************************************
- * Name: up_vectorinitialize
- ************************************************************/
-
-static inline void up_vectorinitialize(void)
-{
-  up_vector_t *src  = g_vectorinittab;
-  up_vector_t *dest = (up_vector_t*)&_svectors;
-  int i;
-
-  for (i = 0; i < NVECTORS; i++)
-    {
-      *dest++ = *src++;
-    }
-}
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_irqinitialize
- ************************************************************/
-
-void up_irqinitialize(void)
-{
-  /* Disable all interrupts. */
-
-  putreg32(0x0000ffff, MASK_IT_REG);
-
-  /* Clear any pending interrupts */
-
-  up_ackirq(0);
-  up_ackfiq(0);
-  putreg32(0x00000000, IT_REG);
-
-  /* Override hardware defaults */
-
-  putreg32(ILR_EDGESENSITIVE | ILR_PRIORITY, ILR_IRQ2_REG);
-  putreg32(ILR_EDGESENSITIVE | ILR_PRIORITY, ILR_IRQ4_REG);
-  putreg32(ILR_PRIORITY,                     ILR_IRQ6_REG);
-  putreg32(ILR_EDGESENSITIVE | ILR_PRIORITY, ILR_IRQ15_REG);
-
-  /* Initialize hardware interrupt vectors */
-
-  up_vectorinitialize();
-  current_regs = NULL;
-
-  /* And finally, enable interrupts */
-
-#ifndef CONFIG_SUPPRESS_INTERRUPTS
-  irqrestore(SVC_MODE | F_BIT);
-#endif
-}
-
-/************************************************************
- * Name: up_disable_irq
- *
- * Description:
- *   Disable the IRQ specified by 'irq'
- *
- ************************************************************/
-
-void up_disable_irq(int irq)
-{
-  if ((unsigned)irq < NR_IRQS)
-    {
-      uint32 reg = getreg32(MASK_IT_REG);
-      putreg32(reg | (1 << irq), MASK_IT_REG);
-    }
-}
-
-/************************************************************
- * Name: up_enable_irq
- *
- * Description:
- *   Enable the IRQ specified by 'irq'
- *
- ************************************************************/
-
-void up_enable_irq(int irq)
-{
-  if ((unsigned)irq < NR_IRQS)
-    {
-      uint32 reg = getreg32(MASK_IT_REG);
-      putreg32(reg & ~(1 << irq), MASK_IT_REG);
-    }
-}
-
-/************************************************************
- * Name: up_maskack_irq
- *
- * Description:
- *   Mask the IRQ and acknowledge it
- *
- ************************************************************/
-
-void up_maskack_irq(int irq)
-{
-  uint32 reg = getreg32(INT_CTRL_REG);
-
-  /* Mask the interrupt */
-
-  reg = getreg32(MASK_IT_REG);
-  putreg32(reg | (1 << irq), MASK_IT_REG);
-
-  /* Set the NEW_IRQ_AGR bit.  This clears the IRQ src register
-   * enables generation of a new IRQ.
-   */
-
-  reg = getreg32(INT_CTRL_REG);
-  putreg32(reg | 0x00000001, INT_CTRL_REG); /* write the NEW_IRQ_AGR bit. */
-}
diff --git a/nuttx/arch/c5471/src/up_lowputc.S b/nuttx/arch/c5471/src/up_lowputc.S
deleted file mode 100644
index 050870c4c..000000000
--- a/nuttx/arch/c5471/src/up_lowputc.S
+++ /dev/null
@@ -1,127 +0,0 @@
-/**************************************************************************
- * up_lowputc.S
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- **************************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <nuttx/config.h>
-#include "up_internal.h"
-#include "c5471.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-/**************************************************************************
- * Private Types
- **************************************************************************/
-
-/**************************************************************************
- * Private Function Prototypes
- **************************************************************************/
-
-/**************************************************************************
- * Global Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-/**************************************************************************
- * Name: up_lowputc
- **************************************************************************/
-
-/* This assembly language version has the advantage that it can does not
- * require a C stack and uses only r0-r1.  Hence it can be used during
- * early boot phases.
- */
-
-	.text
-	.global	up_lowputc
-	.type	up_lowputc, function
-up_lowputc:
-	/* On entry, r0 holds the character to be printed */
-
-#ifdef CONFIG_SERIAL_IRDA_CONSOLE
-	ldr	r2, =UART_IRDA_BASE	/* r2=IRDA UART base */
-#else
-	ldr	r2, =UART_MODEM_BASE	/* r2=Modem UART base */
-#endif
-
-	/* Poll bit 0 of the UART_SSR register.  When the bit
-	 * is clear, the TX FIFO is no longer full
-	 */
-
-1:	ldr	r1, [r2, #UART_SSR_OFFS]
-	tst	r1, #UART_SSR_TXFULL
-	bne	1b
-
-	/* Send the character by writing it into the UART_THR
-	 * register.
-	 */
-
-	str     r0, [r2, #UART_THR_OFFS]
-
-	/* Wait for the tranmsit holding regiser (THR) to be
-	 * emptied. This is detemined when bit 6 of the LSR
-	 * is set.
-	 */
-
-2:	ldr     r1, [r2, #UART_LSR_OFFS]
-	tst     r1, #0x00000020
-	beq     2b
-
-	/* If the character that we just sent was a linefeed,
-	 * then send a carriage return as well.
-	 */
-
-	teq     r0, #'\n'
-	moveq   r0, #'\r'
-	beq     1b
-
-	/* And return */
-
-	mov     pc, lr
-
diff --git a/nuttx/arch/c5471/src/up_prefetchabort.c b/nuttx/arch/c5471/src/up_prefetchabort.c
deleted file mode 100644
index 7756b7c35..000000000
--- a/nuttx/arch/c5471/src/up_prefetchabort.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/************************************************************
- * up_prefetchabort.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <nuttx/irq.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_prefetchabort
- ************************************************************/
-
-void up_prefetchabort(uint32 *regs)
-{
-  PANIC(OSERR_ERREXCEPTION);
-}
diff --git a/nuttx/arch/c5471/src/up_releasepending.c b/nuttx/arch/c5471/src/up_releasepending.c
deleted file mode 100644
index 2b4179687..000000000
--- a/nuttx/arch/c5471/src/up_releasepending.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/************************************************************
- * up_releasepending.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Funtions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_release_pending
- *
- * Description:
- *   Release and ready-to-run tasks that have
- *   collected in the pending task list.  This can call a
- *   context switch if a new task is placed at the head of
- *   the ready to run list.
- *
- ************************************************************/
-
-void up_release_pending(void)
-{
-  _TCB *rtcb = (_TCB*)g_readytorun.head;
-
-  lldbg("From TCB=%p\n", rtcb);
-
-  /* Merge the g_pendingtasks list into the g_readytorun task list */
-
-  /* sched_lock(); */
-  if (sched_mergepending())
-    {
-      /* The currently active task has changed!  We will need to
-       * switch contexts.  First check if we are operating in
-       * interrupt context:
-       */
-
-      if (current_regs)
-        {
-          /* Yes, then we have to do things differently.
-           * Just copy the current_regs into the OLD rtcb.
-           */
-
-           up_copystate(rtcb->xcp.regs, current_regs);
-
-          /* Restore the exception context of the rtcb at the (new) head 
-           * of the g_readytorun task list.
-           */
-
-          rtcb = (_TCB*)g_readytorun.head;
-          lldbg("New Active Task TCB=%p\n", rtcb);
-
-          /* Then switch contexts */
-
-          up_copystate(current_regs, rtcb->xcp.regs);
-        }
-
-      /* Copy the exception context into the TCB of the task that
-       * was currently active. if up_saveusercontext returns a non-zero
-       * value, then this is really the previously running task 
-       * restarting!
-       */
-
-      else if (!up_saveusercontext(rtcb->xcp.regs))
-        {
-          /* Restore the exception context of the rtcb at the (new) head 
-           * of the g_readytorun task list.
-           */
-
-          rtcb = (_TCB*)g_readytorun.head;
-          lldbg("New Active Task TCB=%p\n", rtcb);
-
-           /* Then switch contexts */
-
-          up_fullcontextrestore(rtcb->xcp.regs);
-        }
-    }
-}
diff --git a/nuttx/arch/c5471/src/up_releasestack.c b/nuttx/arch/c5471/src/up_releasestack.c
deleted file mode 100644
index e300c93bf..000000000
--- a/nuttx/arch/c5471/src/up_releasestack.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/************************************************************
- * up_releasestack.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Private Types
- ************************************************************/
-
-/************************************************************
- * Private Function Prototypes
- ************************************************************/
-
-/************************************************************
- * Global Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_release_stack
- *
- * Description:
- *   A task has been stopped. Free all stack
- *   related resources retained int the defunct TCB.
- *
- ************************************************************/
-
-void up_release_stack(_TCB *dtcb)
-{
-  if (dtcb->stack_alloc_ptr)
-    {
-      sched_free(dtcb->stack_alloc_ptr);
-      dtcb->stack_alloc_ptr = NULL;
-    }
-
-  dtcb->adj_stack_size = 0;
-}
diff --git a/nuttx/arch/c5471/src/up_reprioritizertr.c b/nuttx/arch/c5471/src/up_reprioritizertr.c
deleted file mode 100644
index 58f31bba5..000000000
--- a/nuttx/arch/c5471/src/up_reprioritizertr.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/************************************************************
- * up_reprioritizertr.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Funtions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_reprioritize_rtr
- *
- * Description:
- *   Called when the priority of a running or
- *   ready-to-run task changes and the reprioritization will 
- *   cause a context switch.  Two cases:
- *
- *   1) The priority of the currently running task drops and the next
- *      task in the ready to run list has priority.
- *   2) An idle, ready to run task's priority has been raised above the
- *      the priority of the current, running task and it now has the
- *      priority.
- *
- * Inputs:
- *   tcb: The TCB of the task that has been reprioritized
- *   priority: The new task priority
- *
- ************************************************************/
-
-void up_reprioritize_rtr(_TCB *tcb, ubyte priority)
-{
-  /* Verify that the caller is sane */
-
-  if (tcb->task_state < FIRST_READY_TO_RUN_STATE ||
-      tcb->task_state > LAST_READY_TO_RUN_STATE ||
-      priority < SCHED_PRIORITY_MIN || 
-      priority > SCHED_PRIORITY_MAX)
-    {
-       PANIC(OSERR_BADREPRIORITIZESTATE);
-    }
-  else
-    {
-      _TCB *rtcb = (_TCB*)g_readytorun.head;
-      boolean switch_needed;
-
-      lldbg("TCB=%p PRI=%d\n", tcb, priority);
-
-      /* Remove the tcb task from the ready-to-run list.
-       * sched_removereadytorun will return TRUE if we just
-       * remove the head of the ready to run list.
-       */
-
-      switch_needed = sched_removereadytorun(tcb);
-
-      /* Setup up the new task priority */
-
-      tcb->sched_priority = (ubyte)priority;
-
-      /* Return the task to the specified blocked task list.
-       * sched_addreadytorun will return TRUE if the task was
-       * added to the new list.  We will need to perform a context
-       * switch only if the EXCLUSIVE or of the two calls is non-zero
-       * (i.e., one and only one the calls changes the head of the
-       * ready-to-run list).
-       */
-
-      switch_needed ^= sched_addreadytorun(tcb);
-
-      /* Now, perform the context switch if one is needed */
-
-      if (switch_needed)
-        {
-          /* If we are going to do a context switch, then now is the right
-           * time to add any pending tasks back into the ready-to-run list.
-           * task list now
-           */
-
-          if (g_pendingtasks.head)
-            {
-              sched_mergepending();
-            }
-
-         /* Are we in an interrupt handler? */
-
-          if (current_regs)
-            {
-              /* Yes, then we have to do things differently.
-               * Just copy the current_regs into the OLD rtcb.
-               */
-
-               up_copystate(rtcb->xcp.regs, current_regs);
-
-              /* Restore the exception context of the rtcb at the (new) head 
-               * of the g_readytorun task list.
-               */
-
-              rtcb = (_TCB*)g_readytorun.head;
-              lldbg("New Active Task TCB=%p\n", rtcb);
-
-              /* Then switch contexts */
-
-              up_copystate(current_regs, rtcb->xcp.regs);
-            }
-
-          /* Copy the exception context into the TCB at the (old) head of the
-           * g_readytorun Task list. if up_saveusercontext returns a non-zero
-           * value, then this is really the previously running task restarting!
-           */
-
-          else if (!up_saveusercontext(rtcb->xcp.regs))
-            {
-              /* Restore the exception context of the rtcb at the (new) head 
-               * of the g_readytorun task list.
-               */
-
-              rtcb = (_TCB*)g_readytorun.head;
-              lldbg("New Active Task TCB=%p\n", rtcb);
-
-              /* Then switch contexts */
-
-              up_fullcontextrestore(rtcb->xcp.regs);
-            }
-        }
-    }
-}
diff --git a/nuttx/arch/c5471/src/up_saveusercontext.S b/nuttx/arch/c5471/src/up_saveusercontext.S
deleted file mode 100644
index 142f3660f..000000000
--- a/nuttx/arch/c5471/src/up_saveusercontext.S
+++ /dev/null
@@ -1,119 +0,0 @@
-/**************************************************************************
- * up_saveusercontext.S
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- **************************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <nuttx/irq.h>
-#include "up_internal.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-/**************************************************************************
- * Private Types
- **************************************************************************/
-
-/**************************************************************************
- * Private Function Prototypes
- **************************************************************************/
-
-/**************************************************************************
- * Global Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-/**************************************************************************
- * Name: up_saveusercontext
- **************************************************************************/
-
-	.text
-	.globl	up_saveusercontext
-	.type	up_saveusercontext, function
-up_saveusercontext:
-	/* On entry, a1 (r0) holds address of struct xcptcontext.
-	 * Offset to the user region.
-	 */
-
-	/* Make sure that the return value will be non-zero (the
-	 * value of the other volatile registers don't matter --
-	 * r1-r3, ip).  This function is called throught the
-	 * noraml C calling conventions and the values of these
-	 * registers cannot be assumed at the point of setjmp
-	 * return.
-	 */
-
-        mov	ip, #1
-	str	ip, [r0, #(4*REG_R0)]
-
-	/* Save the volatile registers (plus r12 which really
-	 * doesn't need to be saved)
-	 */
-
-	add	r1, r0, #(4*REG_R4)
-	stmia	r1, {r4-r14}
-
-	/* Save the current cpsr */
-
-	mrs	r2, cpsr		/* R3 = CPSR value */
-	add	r1, r0, #(4*REG_CPSR)
-	str	r2, [r1]
-
-	/* Finally save the return address as the PC so that we
-	 * return to the exit from this function.
-	 */
-
-        add	r1, r0, #(4*REG_PC)
-	str	lr, [r1]
-
-	/* Return 0 */
-
-	mov	r0, #0		/* Return value == 0 */
-	mov	pc, lr		/* Return */
-	.size	up_saveusercontext, . - up_saveusercontext
-
diff --git a/nuttx/arch/c5471/src/up_schedulesigaction.c b/nuttx/arch/c5471/src/up_schedulesigaction.c
deleted file mode 100644
index 47b565e2b..000000000
--- a/nuttx/arch/c5471/src/up_schedulesigaction.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/************************************************************
- * up_schedulesigaction.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "os_internal.h"
-#include "up_internal.h"
-#include "c5471.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Funtions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_schedule_sigaction
- *
- * Description:
- *   This function is called by the OS when one or more
- *   signal handling actions have been queued for execution.
- *   The architecture specific code must configure things so
- *   that the 'igdeliver' callback is executed on the thread
- *   specified by 'tcb' as soon as possible.
- *
- *   This function may be called from interrupt handling logic.
- *
- *   This operation should not cause the task to be unblocked
- *   nor should it cause any immediate execution of sigdeliver.
- *   Typically, a few cases need to be considered:
- *
- *   (1) This function may be called from an interrupt handler
- *       During interrupt processing, all xcptcontext structures
- *       should be valid for all tasks.  That structure should
- *       be modified to invoke sigdeliver() either on return
- *       from (this) interrupt or on some subsequent context
- *       switch to the recipient task.
- *   (2) If not in an interrupt handler and the tcb is NOT
- *       the currently executing task, then again just modify
- *       the saved xcptcontext structure for the recipient
- *       task so it will invoke sigdeliver when that task is
- *       later resumed.
- *   (3) If not in an interrupt handler and the tcb IS the
- *       currently executing task -- just call the signal
- *       handler now.
- *
- ************************************************************/
-
-void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver)
-{
-  /* Refuse to handle nested signal actions */
-
-  dbg("tcb=0x%p sigdeliver=0x%p\n", tcb, sigdeliver);
-
-  if (!tcb->xcp.sigdeliver)
-    {
-      irqstate_t flags;
-
-      /* Make sure that interrupts are disabled */
-
-      flags = irqsave();
-
-      /* First, handle some special cases when the signal is
-       * being delivered to the currently executing task.
-       */
-
-      dbg("rtcb=0x%p current_regs=0x%p\n", g_readytorun.head, current_regs);
-
-      if (tcb == (_TCB*)g_readytorun.head)
-        {
-          /* CASE 1:  We are not in an interrupt handler and
-           * a task is signalling itself for some reason.
-           */
-
-          if (!current_regs)
-            {
-              /* In this case just deliver the signal now. */
-
-              sigdeliver(tcb);
-            }
-
-          /* CASE 2:  We are in an interrupt handler AND the
-           * interrupted task is the same as the one that
-           * must receive the signal, then we will have to modify
-           * the return state as well as the state in the TCB.
-           */
-
-          else
-            {
-              /* Save the return lr and cpsr and one scratch register
-               * These will be restored by the signal trampoline after
-               * the signals have been delivered.
-               */
-
-              tcb->xcp.sigdeliver    = sigdeliver;
-              tcb->xcp.saved_pc      = current_regs[REG_PC];
-              tcb->xcp.saved_cpsr    = current_regs[REG_CPSR];
-
-              /* Then set up to vector to the trampoline with interrupts
-               * disabled
-               */
-
-              current_regs[REG_PC]    = (uint32)up_sigdeliver;
-              current_regs[REG_CPSR]  = SVC_MODE | I_BIT | F_BIT;
-
-              /* And make sure that the saved context in the TCB
-               * is the same as the interrupt return context.
-               */
-
-              up_copystate(tcb->xcp.regs, current_regs);
-            }
-        }
-
-      /* Otherwise, we are (1) signaling a task is not running
-       * from an interrupt handler or (2) we are not in an
-       * interrupt handler and the running task is signalling
-       * some non-running task.
-       */
-
-      else
-        {
-          /* Save the return lr and cpsr and one scratch register
-           * These will be restored by the signal trampoline after
-           * the signals have been delivered.
-           */
-
-          tcb->xcp.sigdeliver    = sigdeliver;
-          tcb->xcp.saved_pc      = tcb->xcp.regs[REG_PC];
-          tcb->xcp.saved_cpsr    = tcb->xcp.regs[REG_CPSR];
-
-          /* Then set up to vector to the trampoline with interrupts
-           * disabled
-           */
-
-          tcb->xcp.regs[REG_PC]   = (uint32)up_sigdeliver;
-          tcb->xcp.regs[REG_CPSR] = SVC_MODE | I_BIT | F_BIT;
-        }
-
-      irqrestore(flags);
-    }
-}
diff --git a/nuttx/arch/c5471/src/up_serial.c b/nuttx/arch/c5471/src/up_serial.c
deleted file mode 100644
index 7b2b9a24e..000000000
--- a/nuttx/arch/c5471/src/up_serial.c
+++ /dev/null
@@ -1,865 +0,0 @@
-/****************************************************************************
- * up_serial.c
- *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <semaphore.h>
-#include <string.h>
-#include <errno.h>
-#include <debug.h>
-#include <nuttx/irq.h>
-#include <nuttx/arch.h>
-#include <nuttx/serial.h>
-#include <arch/serial.h>
-#include "c5471.h"
-#include "os_internal.h"
-#include "up_internal.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define BASE_BAUD     115200
-
-#if defined(CONFIG_UART_IRDA_HWFLOWCONTROL) || defined(CONFIG_UART_MODEM_HWFLOWCONTROL)
-# define CONFIG_UART_HWFLOWCONTROL
-#endif
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-struct uart_regs_s
-{
-  uint32  ier;
-  uint32  lcr;
-  uint32  fcr;
-#ifdef CONFIG_UART_HWFLOWCONTROL
-  uint32  efr;
-  uint32  tcr;
-#endif
-};
-
-struct up_dev_s
-{
-  unsigned int         uartbase;	/* Base address of UART registers */
-  unsigned int         baud_base;	/* Base baud for conversions */
-  unsigned int         baud;		/* Configured baud */
-  ubyte                xmit_fifo_size;	/* Size of transmit FIFO */
-  ubyte                irq;		/* IRQ associated with this UART */
-  ubyte                parity;		/* 0=none, 1=odd, 2=even */
-  ubyte                bits;		/* Number of bits (7 or 8) */
-#ifdef CONFIG_UART_HWFLOWCONTROL
-  boolean              flowcontrol;	/* TRUE: Hardware flow control
-					 * is enabled. */
-#endif
-  boolean              stopbits2;	/* TRUE: Configure with 2
-					 * stop bits instead of 1 */
-  struct uart_regs_s   regs;		/* Shadow copy of readonly regs */
-};
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-static int     up_setup(struct uart_dev_s *dev);
-static void    up_shutdown(struct uart_dev_s *dev);
-static int     up_attach(struct uart_dev_s *dev);
-static void    up_detach(struct uart_dev_s *dev);
-static int     up_interrupt(int irq, void *context);
-static int     up_ioctl(struct file *filep, int cmd, unsigned long arg);
-static int     up_receive(struct uart_dev_s *dev, unsigned int *status);
-static void    up_rxint(struct uart_dev_s *dev, boolean enable);
-static boolean up_rxavailable(struct uart_dev_s *dev);
-static void    up_send(struct uart_dev_s *dev, int ch);
-static void    up_txint(struct uart_dev_s *dev, boolean enable);
-static boolean up_txready(struct uart_dev_s *dev);
-static boolean up_txempty(struct uart_dev_s *dev);
-
-/****************************************************************************
- * Private Variables
- ****************************************************************************/
-
-struct uart_ops_s g_uart_ops =
-{
-  .setup          = up_setup,
-  .shutdown       = up_shutdown,
-  .attach         = up_attach,
-  .detach         = up_detach,
-  .ioctl          = up_ioctl,
-  .receive        = up_receive,
-  .rxint          = up_rxint,
-  .rxavailable    = up_rxavailable,
-  .send           = up_send,
-  .txint          = up_txint,
-  .txready        = up_txready,
-  .txempty        = up_txempty,
-};
-
-/* I/O buffers */
-
-static char g_irdarxbuffer[CONFIG_UART_IRDA_RXBUFSIZE];
-static char g_irdatxbuffer[CONFIG_UART_IRDA_TXBUFSIZE];
-static char g_modemrxbuffer[CONFIG_UART_MODEM_RXBUFSIZE];
-static char g_modemtxbuffer[CONFIG_UART_MODEM_TXBUFSIZE];
-
-/* This describes the state of the C5471 serial IRDA port. */
-
-static struct up_dev_s g_irdapriv =
-{
-  .xmit_fifo_size = UART_IRDA_XMIT_FIFO_SIZE,
-  .baud_base      = BASE_BAUD,
-  .uartbase       = UART_IRDA_BASE,
-  .baud           = CONFIG_UART_IRDA_BAUD,
-  .irq            = C5471_IRQ_UART_IRDA,
-  .parity         = CONFIG_UART_IRDA_PARITY,
-  .bits           = CONFIG_UART_IRDA_BITS,
-#ifdef CONFIG_UART_IRDA_HWFLOWCONTROL
-  .flowcontrol    = TRUE,
-#endif
-  .stopbits2      = CONFIG_UART_IRDA_2STOP,
-};
-
-static uart_dev_t g_irdaport =
-{
-  .recv     =
-  {
-    .size   = CONFIG_UART_IRDA_RXBUFSIZE,
-    .buffer = g_irdarxbuffer,
-  },
-  .xmit     =
-  {
-    .size   = CONFIG_UART_IRDA_TXBUFSIZE,
-    .buffer = g_irdatxbuffer,
-   },
-  .ops      = &g_uart_ops,
-  .priv     = &g_irdapriv,
-};
-
-/* This describes the state of the C5471 serial Modem port. */
-
-static struct up_dev_s g_modempriv =
-{
-  .xmit_fifo_size = UART_XMIT_FIFO_SIZE,
-  .baud_base      = BASE_BAUD,
-  .uartbase       = UART_MODEM_BASE,
-  .baud           = CONFIG_UART_MODEM_BAUD,
-  .irq            = C5471_IRQ_UART,
-  .parity         = CONFIG_UART_MODEM_PARITY,
-  .bits           = CONFIG_UART_MODEM_BITS,
-#ifdef CONFIG_UART_MODEM_HWFLOWCONTROL
-  .flowcontrol    = TRUE,
-#endif
-  .stopbits2      = CONFIG_UART_MODEM_2STOP,
-};
-
-static uart_dev_t g_modemport =
-{
-  .recv     =
-  {
-    .size   = CONFIG_UART_MODEM_RXBUFSIZE,
-    .buffer = g_modemrxbuffer,
-  },
-  .xmit     =
-  {
-    .size   = CONFIG_UART_MODEM_TXBUFSIZE,
-    .buffer = g_modemtxbuffer,
-  },
-  .ops      = &g_uart_ops,
-  .priv     = &g_modempriv,
-};
-
-/* Now, which one with be tty0/console and which tty1? */
-
-#ifdef CONFIG_SERIAL_IRDA_CONSOLE
-# define CONSOLE_DEV     g_irdaport
-# define TTYS0_DEV       g_irdaport
-# define TTYS1_DEV       g_modemport
-#else
-# define CONSOLE_DEV     g_modemport
-# define TTYS0_DEV       g_modemport
-# define TTYS1_DEV       g_irdaport
-#endif
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_inserial
- ****************************************************************************/
-
-static inline uint32 up_inserial(struct up_dev_s *priv, uint32 offset)
-{
-  return getreg32(priv->uartbase + offset);
-}
-
-/****************************************************************************
- * Name: up_serialout
- ****************************************************************************/
-
-static inline void up_serialout(struct up_dev_s *priv, uint32 offset, uint32 value)
-{
-  putreg32(value, priv->uartbase + offset);
-}
-
-/****************************************************************************
- * Name: up_disableuartint
- ****************************************************************************/
-
-static inline void up_disableuartint(struct up_dev_s *priv, uint16 *ier)
-{
-  if (ier)
-    {
-      *ier = priv->regs.ier & UART_IER_INTMASK;
-    }
-  priv->regs.ier &= ~UART_IER_INTMASK;
-  up_serialout(priv, UART_IER_OFFS, priv->regs.ier);
-}
-
-/****************************************************************************
- * Name: up_restoreuartint
- ****************************************************************************/
-
-static inline void up_restoreuartint(struct up_dev_s *priv, uint16 ier)
-{
-  priv->regs.ier |= ier & (UART_IER_RECVINT|UART_IER_XMITINT);
-  up_serialout(priv, UART_IER_OFFS, priv->regs.ier);
-}
-
-/****************************************************************************
- * Name: up_waittxready
- ****************************************************************************/
-
-static inline void up_waittxready(struct up_dev_s *priv)
-{
-  int tmp;
-
-  for (tmp = 1000 ; tmp > 0 ; tmp--)
-    {
-      if ((up_inserial(priv, UART_SSR_OFFS) & UART_SSR_TXFULL) == 0)
-        {
-          break;
-        }
-    }
-}
-/****************************************************************************
- * Name: up_disablebreaks
- ****************************************************************************/
-
-static inline void up_disablebreaks(struct up_dev_s *priv)
-{
-  priv->regs.lcr &= ~UART_LCR_BOC;
-  up_serialout(priv, UART_LCR_OFFS, priv->regs.lcr);
-}
-
-/****************************************************************************
- * Name: up_enablebreaks
- ****************************************************************************/
-
-static inline void up_enablebreaks(struct up_dev_s *priv)
-{
-  priv->regs.lcr |= UART_LCR_BOC;
-  up_serialout(priv, UART_LCR_OFFS, priv->regs.lcr);
-}
-
-/****************************************************************************
- * Name: up_setrate
- ****************************************************************************/
-
-static inline void up_setrate(struct up_dev_s *priv, unsigned int rate)
-{
-  uint32 div_bit_rate;
-
-  switch (rate)
-    {
-    case 115200:
-      div_bit_rate = BAUD_115200;
-      break;
-    case 57600:
-      div_bit_rate = BAUD_57600;
-      break;
-    case 38400:
-      div_bit_rate = BAUD_38400;
-      break;
-    case 19200:
-      div_bit_rate = BAUD_19200;
-      break;
-    case 4800:
-      div_bit_rate = BAUD_4800;
-      break;
-    case 2400:
-      div_bit_rate = BAUD_2400;
-      break;
-    case 1200:
-      div_bit_rate = BAUD_1200;
-      break;
-    case 9600:
-    default:
-      div_bit_rate = BAUD_9600;
-      break;
-    }
-
-  up_serialout(priv, UART_DIV_BIT_RATE_OFFS, div_bit_rate);
-}
-
-/****************************************************************************
- * Name: up_setup
- *
- * Description:
- *   Configure the UART baud, bits, parity, fifos, etc. This
- *   method is called the first time that the serial port is
- *   opened.
- *
- ****************************************************************************/
-
-static int up_setup(struct uart_dev_s *dev)
-{
-#ifndef CONFIG_SUPPRESS_UART_CONFIG
-  struct up_dev_s *priv = dev->priv;
-  unsigned int cval;
-
-  if (priv->bits == 7)
-    {
-      cval = UART_LCR_7BITS;
-    }
-  else
-    {
-      cval = UART_LCR_8BITS;
-    }
-
-  if (priv->stopbits2)
-    {
-      cval |= UART_LCR_2STOP;
-    }
-
-  if (priv->parity == 1)   /* Odd parity */
-    {
-      cval |= (UART_LCR_PAREN|UART_LCR_PARODD);
-    }
-  else if (priv->parity == 2)  /* Even parity */
-    {
-      cval |= (UART_LCR_PAREN|UART_LCR_PAREVEN);
-    }
-
-  /* Both the IrDA and MODEM UARTs support RESET and UART mode. */
-
-  up_serialout(priv, UART_MDR_OFFS, MDR_RESET_MODE);
-  up_delay(5);
-  up_serialout(priv, UART_MDR_OFFS, MDR_UART_MODE);
-  up_delay(5);
-
-  priv->regs.ier = up_inserial(priv, UART_IER_OFFS);
-  priv->regs.lcr = up_inserial(priv, UART_LCR_OFFS);
-#ifdef CONFIG_UART_HWFLOWCONTROL
-  if (priv->flowcontrol)
-    {
-      priv->regs.efr = up_inserial(priv, UART_EFR_OFFS);
-      priv->regs.tcr = up_inserial(priv, UART_TCR_OFFS);
-    }
-#endif
-
-  up_disableuartint(priv, NULL);
-
-  up_serialout(priv, UART_EFR_OFFS,  0x0010);           /* Enable fifo control */
-  up_serialout(priv, UART_TFCR_OFFS, 0);                /* Reset to 0 */
-  up_serialout(priv, UART_RFCR_OFFS, UART_FCR_RX_CLR);  /* Clear RX fifo */
-  up_serialout(priv, UART_TFCR_OFFS, UART_FCR_TX_CLR);  /* Clear TX fifo */
-  up_serialout(priv, UART_TFCR_OFFS, UART_FCR_FIFO_EN); /* Enable RX/TX fifos */
-
-  up_disablebreaks(priv);
-
-  /* Set the RX and TX trigger levels to the minimum */
-
-  priv->regs.fcr = (priv->regs.fcr & 0xffffffcf) | UART_FCR_FTL;
-  up_serialout(priv, UART_RFCR_OFFS, priv->regs.fcr);
-
-  priv->regs.fcr = (priv->regs.fcr & 0xffffff3f) | UART_FCR_FTL;
-  up_serialout(priv, UART_RFCR_OFFS, priv->regs.fcr);
-
-  up_setrate(priv, priv->baud);
-
-  priv->regs.lcr &= 0xffffffe0;      /* clear original field, and... */
-  priv->regs.lcr |= (uint32)cval;    /* Set new bits in that field. */
-  up_serialout(priv, UART_LCR_OFFS, priv->regs.lcr);
-
-#ifdef CONFIG_UART_HWFLOWCONTROL
-  if (priv->flowcontrol)
-    {
-      /* Set the FIFO level triggers for flow control
-       * Halt = 48 bytes, resume = 12 bytes
-       */
-
-      priv->regs.tcr = (priv->regs.tcr & 0xffffff00) | 0x0000003c;
-      up_serialout(priv, UART_TCR_OFFS, priv->regs.tcr);
-
-      /* Enable RTS/CTS flow control */
-
-      priv->regs.efr |= 0x000000c0;
-      up_serialout(priv, UART_EFR_OFFS, priv->regs.efr);
-    }
-  else
-    {
-      /* Disable RTS/CTS flow control */
-
-      priv->regs.efr &= 0xffffff3f;
-      up_serialout(priv, UART_EFR_OFFS, priv->regs.efr);
-    }
-#endif
-#endif
-  return OK;
-}
-
-/****************************************************************************
- * Name: up_shutdown
- *
- * Description:
- *   Disable the UART.  This method is called when the serial port is closed
- *
- ****************************************************************************/
-
-static void up_shutdown(struct uart_dev_s *dev)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)CONSOLE_DEV.priv;
-  up_disableuartint(priv, NULL);
-}
-
-/****************************************************************************
- * Name: up_attach
- *
- * Description:
- *   Configure the UART to operation in interrupt driven mode.  This method is
- *   called when the serial port is opened.  Normally, this is just after the
- *   the setup() method is called, however, the serial console may operate in
- *   a non-interrupt driven mode during the boot phase.
- *
- *   RX and TX interrupts are not enabled when by the attach method (unless the
- *   hardware supports multiple levels of interrupt enabling).  The RX and TX
- *   interrupts are not enabled until the txint() and rxint() methods are called.
- *
- ****************************************************************************/
-
-static int up_attach(struct uart_dev_s *dev)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  int ret;
-
-  /* Attach and enable the IRQ */
-
-  ret = irq_attach(priv->irq, up_interrupt);
-  if (ret == OK)
-    {
-       /* Enable the interrupt (RX and TX interrupts are still disabled
-        * in the UART
-        */
-
-       up_enable_irq(priv->irq);
-    }
-  return ret;
-}
-
-/****************************************************************************
- * Name: up_detach
- *
- * Description:
- *   Detach UART interrupts.  This method is called when the serial port is
- *   closed normally just before the shutdown method is called.  The exception is
- *   the serial console which is never shutdown.
- *
- ****************************************************************************/
-
-static void up_detach(struct uart_dev_s *dev)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  up_disable_irq(priv->irq);
-  irq_detach(priv->irq);
-}
-
-/****************************************************************************
- * Name: up_interrupt
- *
- * Description:
- *   This is the UART interrupt handler.  It will be invoked
- *   when an interrupt received on the 'irq'  It should call
- *   uart_transmitchars or uart_receivechar to perform the
- *   appropriate data transfers.  The interrupt handling logic\
- *   must be able to map the 'irq' number into the approprite
- *   uart_dev_s structure in order to call these functions.
- *
- ****************************************************************************/
-
-static int up_interrupt(int irq, void *context)
-{
-  struct uart_dev_s *dev = NULL;
-  struct up_dev_s   *priv;
-  volatile uint32    cause;
-
-  if (g_irdapriv.irq == irq)
-    {
-      dev = &g_irdaport;
-    }
-  else if (g_modempriv.irq == irq)
-    {
-      dev = &g_modemport;
-    }
-  else
-    {
-      PANIC(OSERR_INTERNAL);
-    }
-  priv = (struct up_dev_s*)dev->priv;
-
-  cause = up_inserial(priv, UART_ISR_OFFS) & 0x0000003f;
-
-  if ((cause & 0x0000000c) == 0x0000000c)
-    {
-      uint32 ier_val = 0;
-
-      /* Is this an interrupt from the IrDA UART? */
-
-      if (irq == C5471_IRQ_UART_IRDA)
-         {
-           /* Save the currently enabled IrDA UART interrupts
-            * so that we can restore the IrDA interrupt state
-            * below.
-            */
-
-           ier_val = up_inserial(priv, UART_IER_OFFS);
-
-           /* Then disable all IrDA UART interrupts */
-
-           up_serialout(priv, UART_IER_OFFS, 0);
-         }
-
-      /* Receive characters from the RX fifo */
-
-      uart_recvchars(dev);
-
-      /* read UART_RHR to clear int condition
-       * toss = up_inserialchar(priv,&status);
-       */
-
-      /* Is this an interrupt from the IrDA UART? */
-
-      if (irq == C5471_IRQ_UART_IRDA)
-         {
-           /* Restore the IrDA UART interrupt enables */
-
-           up_serialout(priv, UART_IER_OFFS, ier_val);
-         }
-    }
-  else if ((cause & 0x0000000c) == 0x00000004)
-    {
-      uart_recvchars(dev);
-    }
-
-  if ((cause & 0x00000002) != 0)
-    {
-      uart_xmitchars(dev);
-    }
-
-  return OK;
-}
-
-/****************************************************************************
- * Name: up_ioctl
- *
- * Description:
- *   All ioctl calls will be routed through this method
- *
- ****************************************************************************/
-
-static int up_ioctl(struct file *filep, int cmd, unsigned long arg)
-{
-  struct inode      *inode = filep->f_inode;
-  struct uart_dev_s *dev   = inode->i_private;
-  struct up_dev_s   *priv  = (struct up_dev_s*)dev->priv;
-  int                ret    = OK;
-
-  switch (cmd)
-    {
-    case TIOCSERGSTRUCT:
-      {
-         struct up_dev_s *user = (struct up_dev_s*)arg;
-         if (!user)
-           {
-             *get_errno_ptr() = EINVAL;
-             ret = ERROR;
-           }
-         else
-           {
-             memcpy(user, dev, sizeof(struct up_dev_s));
-           }
-       }
-       break;
-
-    case TIOCSBRK:  /* BSD compatibility: Turn break on, unconditionally */
-      {
-        irqstate_t flags = irqsave();
-        up_enablebreaks(priv);
-        irqrestore(flags);
-      }
-      break;
-
-    case TIOCCBRK:  /* BSD compatibility: Turn break off, unconditionally */
-      {
-        irqstate_t flags;
-        flags = irqsave();
-        up_disablebreaks(priv);
-        irqrestore(flags);
-      }
-      break;
-
-    default:
-      *get_errno_ptr() = ENOTTY;
-      ret = ERROR;
-      break;
-    }
-
-  return ret;
-}
-
-/****************************************************************************
- * Name: up_receive
- *
- * Description:
- * Called (usually) from the interrupt level to receive one character from
- * the UART.  Error bits associated with the receipt are provided in the
- * the return 'status'.
- *
- ****************************************************************************/
-
-static int up_receive(struct uart_dev_s *dev, unsigned int *status)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  uint32 rhr;
-  uint32 lsr;
-
-  /* Construct a 16bit status word that uses the high byte to
-   * hold the status bits associated with framing,parity,break
-   * and a low byte that holds error bits of LSR for
-   * conditions such as overflow, etc.
-   */
-
-  rhr = up_inserial(priv, UART_RHR_OFFS);
-  lsr = up_inserial(priv, UART_LSR_OFFS);
-
-  *status = (unsigned int)((rhr & 0x0000ff00) | (lsr & 0x000000ff));
-
-  return rhr & 0x000000ff;
-}
-
-/****************************************************************************
- * Name: up_rxint
- *
- * Description:
- *   Call to enable or disable RX interrupts
- *
- ****************************************************************************/
-
-static void up_rxint(struct uart_dev_s *dev, boolean enable)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  if (enable)
-    {
-#ifndef CONFIG_SUPPRESS_SERIAL_INTS
-      priv->regs.ier |= UART_IER_RECVINT;
-      up_serialout(priv, UART_IER_OFFS, priv->regs.ier);
-#endif
-    }
-  else
-    {
-      priv->regs.ier &= ~UART_IER_RECVINT;
-      up_serialout(priv, UART_IER_OFFS, priv->regs.ier);
-    }
-}
-
-/****************************************************************************
- * Name: up_rxavailable
- *
- * Description:
- *   Return TRUE if the receive fifo is not empty
- *
- ****************************************************************************/
-
-static boolean up_rxavailable(struct uart_dev_s *dev)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  return up_inserial(priv, UART_LSR_OFFS) & UART_RX_FIFO_NOEMPTY;
-}
-
-/****************************************************************************
- * Name: up_send
- *
- * Description:
- *   This method will send one byte on the UART
- *
- ****************************************************************************/
-
-static void up_send(struct uart_dev_s *dev, int ch)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  up_serialout(priv, UART_THR_OFFS, (ubyte)ch);
-}
-
-/****************************************************************************
- * Name: up_txint
- *
- * Description:
- *   Call to enable or disable TX interrupts
- *
- ****************************************************************************/
-
-static void up_txint(struct uart_dev_s *dev, boolean enable)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  if (enable)
-    {
-#ifndef CONFIG_SUPPRESS_SERIAL_INTS
-      priv->regs.ier |= UART_IER_XMITINT;
-      up_serialout(priv, UART_IER_OFFS, priv->regs.ier);
-#endif
-    }
-  else
-    {
-      priv->regs.ier &= ~UART_IER_XMITINT;
-      up_serialout(priv, UART_IER_OFFS, priv->regs.ier);
-    }
-}
-
-/****************************************************************************
- * Name: up_txready
- *
- * Description:
- *   Return TRUE if the tranmsit fifo is not full
- *
- ****************************************************************************/
-
-static boolean up_txready(struct uart_dev_s *dev)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  return (up_inserial(priv, UART_SSR_OFFS) & UART_SSR_TXFULL) == 0;
-}
-
-/****************************************************************************
- * Name: up_txempty
- *
- * Description:
- *   Return TRUE if the transmit fifo is empty
- *
- ****************************************************************************/
-
-static boolean up_txempty(struct uart_dev_s *dev)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  return (up_inserial(priv, UART_LSR_OFFS) & UART_LSR_TREF) != 0;
-}
-
-/****************************************************************************
- * Public Funtions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_serialinit
- *
- * Description:
- *   Performs the low level UART initialization early in 
- *   debug so that the serial console will be available
- *   during bootup.  This must be called before up_serialinit.
- *
- ****************************************************************************/
-
-void up_earlyserialinit(void)
-{
-  up_disableuartint(TTYS0_DEV.priv, NULL);
-  up_disableuartint(TTYS1_DEV.priv, NULL);
-
-  CONSOLE_DEV.isconsole = TRUE;
-  up_setup(&CONSOLE_DEV);
-}
-
-/****************************************************************************
- * Name: up_serialinit
- *
- * Description:
- *   Register serial console and serial ports.  This assumes
- *   that up_earlyserialinit was called previously.
- *
- ****************************************************************************/
-
-void up_serialinit(void)
-{
-  (void)uart_register("/dev/console", &CONSOLE_DEV);
-  (void)uart_register("/dev/ttyS0", &TTYS0_DEV);
-  (void)uart_register("/dev/ttyS1", &TTYS1_DEV);
-}
-
-/****************************************************************************
- * Name: up_putc
- *
- * Description:
- *   Provide priority, low-level access to support OS debug
- *   writes
- *
- ****************************************************************************/
-
-int up_putc(int ch)
-{
-  struct up_dev_s *priv = (struct up_dev_s*)CONSOLE_DEV.priv;
-  uint16  ier;
-
-  up_disableuartint(priv, &ier);
-  up_waittxready(priv);
-  up_serialout(priv, UART_THR_OFFS, (ubyte)ch);
-
-  /* Check for LF */
-
-  if (ch == '\n')
-    {
-      /* Add CR */
-
-      up_waittxready(priv);
-      up_serialout(priv, UART_THR_OFFS, '\r');
-    }
-
-  up_waittxready(priv);
-  up_restoreuartint(priv, ier);
-  return ch;
-}
-
diff --git a/nuttx/arch/c5471/src/up_sigdeliver.c b/nuttx/arch/c5471/src/up_sigdeliver.c
deleted file mode 100644
index 8ec10599a..000000000
--- a/nuttx/arch/c5471/src/up_sigdeliver.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/************************************************************
- * up_sigdeliver.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/irq.h>
-#include <nuttx/arch.h>
-#include "os_internal.h"
-#include "up_internal.h"
-#include "c5471.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_sigdeliver
- *
- * Description:
- *   This is the a signal handling trampoline.  When a
- *   signal action was posted.  The task context was mucked
- *   with and forced to branch to this location with interrupts
- *   disabled.
- *
- ************************************************************/
-
-void up_sigdeliver(void)
-{
-  _TCB  *rtcb = (_TCB*)g_readytorun.head;
-  uint32 regs[XCPTCONTEXT_REGS];
-  sig_deliver_t sigdeliver;
-
-  /* Save the errno.  This must be preserved throughout the
-   * signal handling so that the the user code final gets
-   * the correct errno value (probably EINTR).
-   */
-
-  int saved_errno = rtcb->errno;
-
-  up_ledon(LED_SIGNAL);
-
-  dbg("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
-       rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
-  ASSERT(rtcb->xcp.sigdeliver != NULL);
-
-  /* Save the real return state on the stack. */
-
-  up_copystate(regs, rtcb->xcp.regs);
-  regs[REG_PC]   = rtcb->xcp.saved_pc;
-  regs[REG_CPSR] = rtcb->xcp.saved_cpsr;
-
-  /* Get a local copy of the sigdeliver function pointer.
-   * we do this so that we can nullify the sigdeliver
-   * function point in the TCB and accept more signal
-   * deliveries while processing the current pending
-   * signals.
-   */
-
-  sigdeliver           = rtcb->xcp.sigdeliver;
-  rtcb->xcp.sigdeliver = NULL;
-
-  /* Then restore the task interrupt statat. */
-
-  irqrestore(regs[REG_CPSR]);
-
-  /* Deliver the signals */
-
-  sigdeliver(rtcb);
-
-  /* Output any debug messaged BEFORE restoreing errno
-   * (becuase they may alter errno), then restore the
-   * original errno that is needed by the user logic
-   * (it is probably EINTR).
-   */
-
-  dbg("Resuming\n");
-  rtcb->errno = saved_errno;
-
-  /* Then restore the correct state for this thread of
-   * execution.
-   */
-
-  up_ledoff(LED_SIGNAL);
-  up_fullcontextrestore(regs);
-}
diff --git a/nuttx/arch/c5471/src/up_syscall.c b/nuttx/arch/c5471/src/up_syscall.c
deleted file mode 100644
index be4cee745..000000000
--- a/nuttx/arch/c5471/src/up_syscall.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/************************************************************
- * up_syscall.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include "c5471.h"
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * vectors
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_syscall
- *
- * Description:
- *   SWI interrupts will vection here with insn=the SWI
- *   instruction and xcp=the interrupt context
- *
- *   The handler may get the SWI number be de-referencing
- *   the return address saved in the xcp and decoding
- *   the SWI instruction
- *
- ************************************************************/
-
-void up_syscall(uint32 *regs)
-{
-  PANIC(OSERR_ERREXCEPTION);
-}
diff --git a/nuttx/arch/c5471/src/up_timerisr.c b/nuttx/arch/c5471/src/up_timerisr.c
deleted file mode 100644
index d3c03a191..000000000
--- a/nuttx/arch/c5471/src/up_timerisr.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/************************************************************
- * up_timerisr.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "clock_internal.h"
-#include "up_internal.h"
-#include "c5471.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/* We want the general purpose timer running at the rate
- * MSEC_PER_TICK. The C5471 clock is 47.5MHz and we're using
- * a timer PTV value of 3 (3 == divide incoming frequency by
- * 16) which then yields a 16 bitCLKS_PER_INT value
- * of 29687.
- *
- *   47500000 / 16 = 2968750 clocks/sec
- *   2968750 / 100 = 29687   clocks/ 100Hz interrupt
- *
- */
-
-#define CLKS_PER_INT       29687
-#define CLKS_PER_INT_SHIFT 5
-#define AR                 0x00000010
-#define ST                 0x00000008
-#define PTV                0x00000003
-
-/************************************************************
- * Private Types
- ************************************************************/
-
-/************************************************************
- * Private Function Prototypes
- ************************************************************/
-
-/************************************************************
- * Global Functions
- ************************************************************/
-
-/************************************************************
- * Function:  up_timerisr
- *
- * Description:
- *   The timer ISR will perform a variety of services for
- *   various portions of the systems.
- *
- ************************************************************/
-
-int up_timerisr(int irq, uint32 *regs)
-{
-   /* Process timer interrupt */
-
-   sched_process_timer();
-   return 0;
-}
-
-/************************************************************
- * Function:  up_timerinit
- *
- * Description:
- *   This function is called during start-up to initialize
- *   the timer interrupt.
- *
- ************************************************************/
-
-void up_timerinit(void)
-{
-  uint32 val;
-
-  up_disable_irq(C5471_IRQ_SYSTIMER);
-
-  /* Start the general purpose timer running in auto-reload mode
-   * so that an interrupt is generated at the rate MSEC_PER_TICK.
-   */
-
-  val = ((CLKS_PER_INT-1) << CLKS_PER_INT_SHIFT) | AR | ST | PTV;
-  putreg32(val, C5471_TIMER2_CTRL);
-
-  /* Attach and enable the timer interrupt */
-
-  irq_attach(C5471_IRQ_SYSTIMER, (xcpt_t)up_timerisr);
-  up_enable_irq(C5471_IRQ_SYSTIMER);
-}
-
diff --git a/nuttx/arch/c5471/src/up_unblocktask.c b/nuttx/arch/c5471/src/up_unblocktask.c
deleted file mode 100644
index b12f8a98c..000000000
--- a/nuttx/arch/c5471/src/up_unblocktask.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/************************************************************
- * up_unblocktask.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/arch.h>
-#include "clock_internal.h"
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Private Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Funtions
- ************************************************************/
-
-/************************************************************
- * Public Funtions
- ************************************************************/
-
-/************************************************************
- * Name: up_unblock_task
- *
- * Description:
- *   A task is currently in an inactive task list
- *   but has been prepped to execute.  Move the TCB to the
- *   ready-to-run list, restore its context, and start execution.
- *
- * Inputs:
- *   tcb: Refers to the tcb to be unblocked.  This tcb is
- *     in one of the waiting tasks lists.  It must be moved to
- *     the ready-to-run list and, if it is the highest priority
- *     ready to run taks, executed.
- *
- ************************************************************/
-
-void up_unblock_task(_TCB *tcb)
-{
-  /* Verify that the context switch can be performed */
-
-  if ((tcb->task_state < FIRST_BLOCKED_STATE) ||
-      (tcb->task_state > LAST_BLOCKED_STATE))
-    {
-      PANIC(OSERR_BADUNBLOCKSTATE);
-    }
-  else
-    {
-      _TCB *rtcb = (_TCB*)g_readytorun.head;
-
-     lldbg("Unblocking TCB=%p\n", tcb);
-
-     /* Remove the task from the blocked task list */
-
-     sched_removeblocked(tcb);
-
-     /* Reset its timeslice.  This is only meaningful for round
-      * robin tasks but it doesn't hurt to do it for all tasks
-      */
-
-#if CONFIG_RR_INTERVAL > 0
-     tcb->timeslice = CONFIG_RR_INTERVAL / MSEC_PER_TICK;
-#endif
-
-     /* Add the task in the correct location in the prioritized
-      * g_readytorun task list
-      */
-
-     if (sched_addreadytorun(tcb))
-       {
-         /* The currently active task has changed! We need to do
-          * a context switch to the new task.
-          *
-          * Are we in an interrupt handler? 
-          */
-
-          if (current_regs)
-            {
-              /* Yes, then we have to do things differently.
-               * Just copy the current_regs into the OLD rtcb.
-               */
-
-               up_copystate(rtcb->xcp.regs, current_regs);
-
-              /* Restore the exception context of the rtcb at the (new) head 
-               * of the g_readytorun task list.
-               */
-
-              rtcb = (_TCB*)g_readytorun.head;
-              lldbg("New Active Task TCB=%p\n", rtcb);
-
-              /* Then switch contexts */
-
-              up_copystate(current_regs, rtcb->xcp.regs);
-            }
-
-         /* We are not in an interrupt handler.  Copy the user C context
-          * into the TCB of the task that was previously active.  if 
-          * up_saveusercontext returns a non-zero value, then this is really the
-          * previously running task restarting!
-          */
-
-         else if (!up_saveusercontext(rtcb->xcp.regs))
-           {
-             /* Restore the exception context of the new task that is ready to
-              * run (probably tcb).  This is the new rtcb at the head of the
-              * g_readytorun task list.
-              */
-
-             rtcb = (_TCB*)g_readytorun.head;
-             lldbg("New Active Task TCB=%p\n", rtcb);
-
-              /* Then switch contexts */
-
-             up_fullcontextrestore(rtcb->xcp.regs);
-           }
-       }
-    }
-}
diff --git a/nuttx/arch/c5471/src/up_undefinedinsn.c b/nuttx/arch/c5471/src/up_undefinedinsn.c
deleted file mode 100644
index 25c46b133..000000000
--- a/nuttx/arch/c5471/src/up_undefinedinsn.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/************************************************************
- * up_undefinedinsn.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include "os_internal.h"
-#include "up_internal.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Private Data
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-/************************************************************
- * Public Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_undefinedinsn
- ************************************************************/
-
-void up_undefinedinsn(uint32 *regs)
-{
-  PANIC(OSERR_UNDEFINEDINSN);
-}
diff --git a/nuttx/arch/c5471/src/up_usestack.c b/nuttx/arch/c5471/src/up_usestack.c
deleted file mode 100644
index db2c1796e..000000000
--- a/nuttx/arch/c5471/src/up_usestack.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/************************************************************
- * up_usestack.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <sched.h>
-#include <debug.h>
-#include <nuttx/kmalloc.h>
-#include <nuttx/arch.h>
-#include "up_internal.h"
-
-/************************************************************
- * Private Types
- ************************************************************/
-
-/************************************************************
- * Private Function Prototypes
- ************************************************************/
-
-/************************************************************
- * Global Functions
- ************************************************************/
-
-/************************************************************
- * Name: up_use_stack
- *
- * Description:
- *   Setup up stack-related information in the TCB
- *   using pre-allocated stack memory
- *
- *   The following TCB fields must be initialized:
- *   adj_stack_size: Stack size after adjustment for hardware,
- *     processor, etc.  This value is retained only for debug
- *     purposes.
- *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
- *     initial value of the stack pointer.
- *
- * Inputs:
- *   tcb: The TCB of new task
- *   stack_size:  The allocated stack size.
- *
- ************************************************************/
-
-STATUS up_use_stack(_TCB *tcb, void *stack, size_t stack_size)
-{
-  size_t top_of_stack;
-  size_t size_of_stack;
-
-  if (tcb->stack_alloc_ptr)
-    {
-      sched_free(tcb->stack_alloc_ptr);
-    }
-
-  /* Save the stack allocation */
-
-  tcb->stack_alloc_ptr = stack;
-
-  /* The Arm7Tdmi uses a push-down stack:  the stack grows
-   * toward loweraddresses in memory.  The stack pointer
-   * register, points to the lowest, valid work address
-   * (the "top" of the stack).  Items on the stack are
-   * referenced as positive word offsets from sp.
-   */
-
-  top_of_stack = (uint32)tcb->stack_alloc_ptr + stack_size - 4;
-
-  /* The Arm7Tdmi stack must be aligned at word (4 byte)
-   * boundaries. If necessary top_of_stack must be rounded
-   * down to the next boundary
-   */
-
-  top_of_stack &= ~3;
-  size_of_stack = top_of_stack - (uint32)tcb->stack_alloc_ptr + 4;
-
-  /* Save the adjusted stack values in the _TCB */
-
-  tcb->adj_stack_size = top_of_stack;
-  tcb->adj_stack_size = size_of_stack;
-
-  return OK;
-}
diff --git a/nuttx/arch/c5471/src/up_vectors.S b/nuttx/arch/c5471/src/up_vectors.S
deleted file mode 100644
index d54c43f2b..000000000
--- a/nuttx/arch/c5471/src/up_vectors.S
+++ /dev/null
@@ -1,449 +0,0 @@
-/************************************************************
- * up_vectors.S
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ************************************************************/
-
-/************************************************************
- * Included Files
- ************************************************************/
-
-#include <nuttx/config.h>
-#include <nuttx/irq.h>
-#include "c5471.h"
-
-/************************************************************
- * Definitions
- ************************************************************/
-
-/************************************************************
- * Global Data
- ************************************************************/
-
-	.data
-g_irqtmp:
-	.word	0		/* Saved lr */
-	.word	0		/* Saved spsr */
-g_undeftmp:
-	.word	0		/* Saved lr */
-	.word	0		/* Saved spsr */
-g_aborttmp:
-	.word	0		/* Saved lr */
-	.word	0		/* Saved spsr */
-
-/************************************************************
- * Macros
- ************************************************************/
-
-/************************************************************
- * Private Functions
- ************************************************************/
-
-	.text
-
-/************************************************************
- * Public Functions
- ************************************************************/
-
-	.text
-
-/************************************************************
- * Name: up_vectorirq
- *
- * Description:
- *   Interrupt excetpion. Entered in IRQ mode with spsr = SVC
- *   CPSR, lr = SVC PC
- ************************************************************/
-
-	.global	up_vectorirq
-	.type	up_vectorirq, %function
-up_vectorirq:
-	/* On entry, we are in IRQ mode.  We are free to use
-	 * the IRQ mode r13 and r14.
-         *
-	 */
-
-	ldr	r13, .Lirqtmp
-	sub	lr, lr, #4
-	str	lr, [r13]			@ save lr_IRQ
-	mrs	lr, spsr
-	str	lr, [r13, #4]			@ save spsr_IRQ
-
-	/* Then switch back to SVC mode */
-
-	bic	lr, lr, #MODE_MASK	/* Keep F and T bits */
-	orr	lr, lr, #I_BIT | SVC_MODE
-	msr	cpsr_c, lr		/* Switch to SVC mode */
-
-	/* Create a context structure.  First set aside a stack frame
-	 * and store r0-r12 into the frame.
-	 */
-
-	sub	sp, sp, #XCPTCONTEXT_SIZE
-	stmia	sp, {r0-r12}		/* Save the SVC mode regs */
-
-	/* Get the correct values of r13(sp) and r14(lr) in r1 and r2 */
-
-	add	r1, sp, #XCPTCONTEXT_SIZE
-	mov	r2, r14
-
-	/* Get the values for r15(pc) and CPSR in r3 and r4 */
-
-	ldr	r0, .Lirqtmp		/* Points to temp storage */
-	ldmia	r0, {r3, r4}		/* Recover r1=lr_IRQ, r2=spsr_IRQ */
-
-	add	r0, sp, #(4*REG_SP)	/* Offset to pc, cpsr storage */
-	stmia	r0, {r1-r4}
-
-	/* Now decode the interrupt */
-
-#if 0
-	ldr	lr, =SRC_IRQ_BIN_REG	/* Fetch encoded IRQ */
-	ldr	r0, [lr]
-	and	r0, r0, #0x0f		/* Valid range is 0..15 */
-
-	/* Problems here... cannot read SRC_IRQ_BIN_REQ (and/or
-	 * SRC_IRQ_REQ because this will clear edge triggered
-	 * interrupts.  Plus, no way to validate spurious
-	 * interrupt.
-	 */
-#else
-	ldr	r6, =SRC_IRQ_REG
-	ldr     r6, [r6]		/* Get source IRQ reg */
-	mov     r0, #0			/* Assume IRQ0_IRQ set */
-.Lmorebits:
-	tst     r6, #1			/* Is IRQ set? */
-	bne     .Lhaveirq		/* Yes... we have the IRQ */
-	add     r0, r0, #1		/* Setup next IRQ */
-	mov     r6, r6, lsr #1		/* Shift right one */
-	cmp     r0, #16			/* Only 16 valid bits */
-	bcc     .Lmorebits		/* Keep until we have looked
-					 * at all bits */
-	b	.Lnoirqset		/* If we get here, there is
-					 * no pending interrupt */
-.Lhaveirq:
-#endif
-	/* Then call the IRQ handler with interrupt disabled. */
-
-	mov	fp, #0			/* Init frame pointer */
-	mov	r1, sp			/* Get r1=xcp */
-	bl	up_doirq		/* Call the handler */
-
-	/* Restore the CPSR, SVC modr registers and return */
-.Lnoirqset:
-	ldr	r0, [sp, #(4*REG_CPSR)]	/* Setup the SVC mode SPSR */
-	msr	spsr, r0
-	ldmia	sp, {r0-r15}^		/* Return */
-
-.Lirqtmp:
-	.word	g_irqtmp
-
-	.align	5
-
-/************************************************************
- * Function: up_vectorswi
- * 
- * Description:
- *   SWI interrupt. We enter the SWI in SVC mode
- ************************************************************/
-
-	.global	up_vectorswi
-	.type	up_vectorswi, %function
-up_vectorswi:
-
-	/* The c547x rrload bootloader intemediates all
-	 * interrupts.  For the* case of the SWI, it mucked
-	 * with the stack to create some temporary registers.
-	 * We'll have to recover from this mucking here.
-	 */
-
-	ldr	r14, [sp,#-0x4]		/* rrload workaround */
-
-	/* Create a context structure.  First set aside a stack frame
-	 * and store r0-r12 into the frame.
-	 */
-
-	sub	sp, sp, #XCPTCONTEXT_SIZE
-	stmia	sp, {r0-r12}		/* Save the SVC mode regs */
-
-	/* Get the correct values of r13(sp), r14(lr), r15(pc)
-	 * and CPSR in r1-r4 */
-
-	add	r1, sp, #XCPTCONTEXT_SIZE
-	mov	r2, r14			/* R14 is altered on return from SWI */
-	mov	r3, r14			/* Save r14 as the PC as well */
-	mrs	r4, spsr		/* Get the saved CPSR */
-
-	add	r0, sp, #(4*REG_SP)	/* Offset to pc, cpsr storage */
-	stmia	r0, {r1-r4}
-
-	/* Then call the SWI handler with interrupt disabled.
-	 * void up_syscall(struct xcptcontext *xcp)
-	 */
-
-	mov	fp, #0			/* Init frame pointer */
-	mov	r0, sp			/* Get r0=xcp */
-	bl	up_syscall		/* Call the handler */
-
-	/* Restore the CPSR, SVC modr registers and return */
-
-	ldr	r0, [sp, #(4*REG_CPSR)]	/* Setup the SVC mode SPSR */
-	msr	spsr, r0
-	ldmia	sp, {r0-r15}^		/* Return */
-
-	.align	5
-
-/************************************************************
- * Name: up_vectordata
- *
- * Description:
- *   Data abort Exception dispatcher. Give control to data
- *   abort handler.  This function is entered in ABORT mode
- *   with spsr = SVC CPSR, lr = SVC PC
- *
- ************************************************************/
-	
-	.global	up_vectordata
-	.type	up_vectordata, %function
-up_vectordata:
-	/* On entry we are free to use the ABORT mode registers
-	 * r13 and r14
-	 */
-
-	ldr	r13, .Ldaborttmp	/* Points to temp storage */
-	sub	lr, lr, #8		/* Fixup return */
-	str	lr, [r13]		/* Save in temp storage */
-	mrs	lr, spsr		/* Get SPSR */
-	str	lr, [r13, #4]		/* Save in temp storage */
-
-	/* Then switch back to SVC mode */
-
-	bic	lr, lr, #MODE_MASK	/* Keep F and T bits */
-	orr	lr, lr, #I_BIT | SVC_MODE
-	msr	cpsr_c, lr		/* Switch to SVC mode */
-
-	/* Create a context structure.  First set aside a stack frame
-	 * and store r0-r12 into the frame.
-	 */
-
-	sub	sp, sp, #XCPTCONTEXT_SIZE
-	stmia	sp, {r0-r12}		/* Save the SVC mode regs */
-
-	/* Get the correct values of r13(sp) and r14(lr) in r1 and r2 */
-
-	add	r1, sp, #XCPTCONTEXT_SIZE
-	mov	r2, r14
-
-	/* Get the values for r15(pc) and CPSR in r3 and r4 */
-
-	ldr	r0, .Ldaborttmp		/* Points to temp storage */
-	ldmia	r0, {r3, r4}		/* Recover r1=lr_IRQ, r2=spsr_IRQ */
-
-	add	r0, sp, #(4*REG_SP)	/* Offset to pc, cpsr storage */
-	stmia	r0, {r1-r4}
-
-	/* Then call the data abort handler with interrupt disabled.
-	 * void up_dataabort(struct xcptcontext *xcp)
-	 */
-
-	mov	fp, #0			/* Init frame pointer */
-	mov	r0, sp			/* Get r0=xcp */
-	bl	up_dataabort		/* Call the handler */
-
-	/* Restore the CPSR, SVC modr registers and return */
-
-	ldr	r0, [sp, #(4*REG_CPSR)]	/* Setup the SVC mode SPSR */
-	msr	spsr_cxsf, r0
-	ldmia	sp, {r0-r15}^		/* Return */
-
-.Ldaborttmp:
-	.word	g_aborttmp
-
-	.align	5
-
-/************************************************************
- * Name: up_vectorprefetch
- *
- * Description:
- *    Prefetch abort exception.  Entered in ABT mode with
- *    spsr = SVC CPSR, lr = SVC PC
- ************************************************************/
-	
-	.global	up_vectorprefetch
-	.type	up_vectorprefetch, %function
-up_vectorprefetch:
-	/* On entry we are free to use the ABORT mode registers
-	 * r13 and r14
-	 */
-
-	ldr	r13, .Lpaborttmp	/* Points to temp storage */
-	sub	lr, lr, #4		/* Fixup return */
-	str	lr, [r13]		/* Save in temp storage */
-	mrs	lr, spsr		/* Get SPSR */
-	str	lr, [r13, #4]		/* Save in temp storage */
-
-	/* Then switch back to SVC mode */
-
-	bic	lr, lr, #MODE_MASK	/* Keep F and T bits */
-	orr	lr, lr, #I_BIT | SVC_MODE
-	msr	cpsr_c, lr		/* Switch to SVC mode */
-
-	/* Create a context structure.  First set aside a stack frame
-	 * and store r0-r12 into the frame.
-	 */
-
-	sub	sp, sp, #XCPTCONTEXT_SIZE
-	stmia	sp, {r0-r12}		/* Save the SVC mode regs */
-
-	/* Get the correct values of r13(sp) and r14(lr) in r1 and r2 */
-
-	add	r1, sp, #XCPTCONTEXT_SIZE
-	mov	r2, r14
-
-	/* Get the values for r15(pc) and CPSR in r3 and r4 */
-
-	ldr	r0, .Lpaborttmp		/* Points to temp storage */
-	ldmia	r0, {r3, r4}		/* Recover r1=lr_IRQ, r2=spsr_IRQ */
-
-	add	r0, sp, #(4*REG_SP)	/* Offset to pc, cpsr storage */
-	stmia	r0, {r1-r4}
-
-	/* Then call the prefetch abort handler with interrupt disabled.
-	 * void up_prefetchabort(struct xcptcontext *xcp)
-	 */
-
-	mov	fp, #0			/* Init frame pointer */
-	mov	r0, sp			/* Get r0=xcp */
-	bl	up_prefetchabort	/* Call the handler */
-
-	/* Restore the CPSR, SVC modr registers and return */
-
-	ldr	r0, [sp, #(4*REG_CPSR)]	/* Setup the SVC mode SPSR */
-	msr	spsr_cxsf, r0
-	ldmia	sp, {r0-r15}^		/* Return */
-
-.Lpaborttmp:
-	.word	g_aborttmp
-
-	.align	5
-
-/************************************************************
- * Name: up_vectorundefinsn
- *
- * Description:
- *   Undefined instruction entry exception.  Entered in
- *   UND mode, spsr = SVC  CPSR, lr = SVC PC
- *
- ************************************************************/
-	
-	.global	up_vectorundefinsn
-	.type	up_vectorundefinsn, %function
-up_vectorundefinsn:
-	/* On entry we are free to use the UND mode registers
-	 * r13 and r14
-	 */
-
-	ldr	r13, .Lundeftmp		/* Points to temp storage */
-	str	lr, [r13]		/* Save in temp storage */
-	mrs	lr, spsr		/* Get SPSR */
-	str	lr, [r13, #4]		/* Save in temp storage */
-
-	/* Then switch back to SVC mode */
-
-	bic	lr, lr, #MODE_MASK	/* Keep F and T bits */
-	orr	lr, lr, #I_BIT | SVC_MODE
-	msr	cpsr_c, lr		/* Switch to SVC mode */
-
-	/* Create a context structure.  First set aside a stack frame
-	 * and store r0-r12 into the frame.
-	 */
-
-	sub	sp, sp, #XCPTCONTEXT_SIZE
-	stmia	sp, {r0-r12}		/* Save the SVC mode regs */
-
-	/* Get the correct values of r13(sp) and r14(lr) in r1 and r2 */
-
-	add	r1, sp, #XCPTCONTEXT_SIZE
-	mov	r2, r14
-
-	/* Get the values for r15(pc) and CPSR in r3 and r4 */
-
-	ldr	r0, .Lundeftmp		/* Points to temp storage */
-	ldmia	r0, {r3, r4}		/* Recover r1=lr_IRQ, r2=spsr_IRQ */
-
-	add	r0, sp, #(4*REG_SP)	/* Offset to pc, cpsr storage */
-	stmia	r0, {r1-r4}
-
-	/* Then call the undef insn handler with interrupt disabled.
-	 * void up_undefinedinsn(struct xcptcontext *xcp)
-	 */
-
-	mov	fp, #0			/* Init frame pointer */
-	mov	r0, sp			/* Get r0=xcp */
-	bl	up_undefinedinsn	/* Call the handler */
-
-	/* Restore the CPSR, SVC modr registers and return */
-
-	ldr	r0, [sp, #(4*REG_CPSR)]	/* Setup the SVC mode SPSR */
-	msr	spsr_cxsf, r0
-	ldmia	sp, {r0-r15}^		/* Return */
-
-.Lundeftmp:
-	.word	g_undeftmp
-
-	.align	5
-
-/************************************************************
- * Name: up_vectorfiq
- *
- * Description:
- *   Shouldn't happen
- ************************************************************/
-
-	.global	up_vectorfiq
-	.type	up_vectorfiq, %function
-up_vectorfiq:
-	subs	pc, lr, #4
-
-/************************************************************
- *  Name: up_vectoraddrexcption
- *
- * Description:
- *   Shouldn't happen
- *
- ************************************************************/
-
-	.global	up_vectoraddrexcptn
-	.type	up_vectoraddrexcptn, %function
-up_vectoraddrexcptn:
-	b	up_vectoraddrexcptn
-	.end
diff --git a/nuttx/arch/c5471/src/up_watchdog.c b/nuttx/arch/c5471/src/up_watchdog.c
deleted file mode 100644
index efa233d4f..000000000
--- a/nuttx/arch/c5471/src/up_watchdog.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/**************************************************************************
- * up_watchdog.c
- *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- **************************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <stdio.h>
-#include <debug.h>
-#include <errno.h>
-#include <nuttx/fs.h>
-#include <nuttx/irq.h>
-#include <arch/watchdog.h>
-#include "c5471.h"
-
-/**************************************************************************
- * Definitions
- **************************************************************************/
-
-#undef CONFIG_SOFTWARE_TEST
-#undef CONFIG_SOFTWARE_REBOOT
-#undef CONFIG_WATCHDOG_STRICT
-
-#define MAX_WDT_USEC           353200
-#define MAX_PRESCALER          256
-#define C5471_TIMER_STOP       0
-
-#define C5471_TIMER_PRESCALER  0x07          /* Bits 0-2: Prescale value */
-#define C5471_TIMER_STARTBIT   (1 << 3)      /* Bit 3: Start timer bit */
-#define C5471_TIMER_AUTORELOAD (1 << 4)      /* Bit 4: Auto-reload timer */
-#define C5471_TIMER_LOADTIM    (0xffff << 5) /* Bits 20-5: Load timer value */
-#define C5471_TIMER_MODE       (1 << 21)     /* Bit 21: Timer mode */
-#define C5471_DISABLE_VALUE1   (0xf5 << 22)  /* Bits 29-22: WD disable */
-#define C5471_DISABLE_VALUE2   (0xa0 << 22)
-
-#define CLOCK_KHZ              47500
-#define CLOCK_MHZx2            95
-
-/* Macros to manage access to to watchdog timer macros */
-
-#define c5471_wdt_cntl  (*(volatile uint32*)C5471_TIMER0_CTRL)
-#define c5471_wdt_count (*(volatile uint32*)C5471_TIMER0_CNT)
-
-/**************************************************************************
- * Private Types
- **************************************************************************/
-
-/**************************************************************************
- * Private Function Prototypes
- **************************************************************************/
-
-/* Local implementation of timer interface */
-
-static inline unsigned int wdt_prescaletoptv(unsigned int prescale);
-
-static int     wdt_setusec(uint32 usec);
-static int     wdt_interrupt(int irq, void *context);
-
-static int     wdt_open(struct file *filep);
-static int     wdt_close(struct file *filep);
-static ssize_t wdt_read(struct file *filep, char *buffer, size_t buflen);
-static ssize_t wdt_write(struct file *filep, const char *buffer, size_t buflen);
-static int     wdt_ioctl(struct file *filep, int cmd, uint32 arg);
-
-/**************************************************************************
- * Private Data
- **************************************************************************/
-
-static boolean g_wdtopen;
-
-struct file_operations g_wdtops =
-{
-  .open  = wdt_open,
-  .close = wdt_close,
-  .read  = wdt_read,
-  .write = wdt_write,
-  .ioctl = wdt_ioctl,
-};
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Name: wdt_prescaletoptv
- **************************************************************************/
-
-static inline unsigned int wdt_prescaletoptv(unsigned int prescale)
-{
-  unsigned int ptv = 0;
-
-  if (prescale > 255)
-    {
-      ptv = 7;
-    }
-  else
-    {
-      unsigned int value = prescale >> 1;
-
-      /* 0: 0-2
-       * 1: 3-4
-       * 2: 5-8
-       * 3: 9-16
-       * 4: 17-32
-       * 5: 33-64
-       * 6: 65-128
-       * 7: 129-
-       */
-
-      while (value > 1)
-        {
-          value >>= 1;
-          ptv++;
-        }
-    }
-
-  dbg("prescale=%d -> ptv=%d\n", prescale, ptv);
-  return ptv;
-}
-
-/**************************************************************************
- * Name: wdt_setusec
- **************************************************************************/
-
-static int wdt_setusec(uint32 usec)
-{
-  /* prescaler: clock / prescaler = #clock ticks per counter in ptv
-   * divisor:   #counts until the interrupt comes.
-   */
-
-  uint32 prescaler = MAX_PRESCALER;
-  uint32 divisor   = 1;
-  uint32 mode;
-
-  dbg("usec=%d\n", usec);
-
-  /* Calculate a value of prescaler and divisor that will be able
-   * to count to the usec.  It may not be exact or the best
-   * possible set, but it's a quick and simple algorithm.
-   *
-   *    divisor max = 0x10000
-   *    prescaler max = MAX_PRESCALER
-   */
-
-  do
-    {
-      divisor = (CLOCK_MHZx2 * usec) / (prescaler * 2);
-      dbg("divisor=0x%x prescaler=0x%x\n", divisor, prescaler);
-
-      if (divisor >= 0x10000)
-        {
-          if (prescaler == MAX_PRESCALER)
-            { 
-              /* This is the max possible ~2.5 seconds. */
-
-              dbg("prescaler=0x%x too big!\n", prescaler);
-              return ERROR;
-            }
-
-          prescaler <<= 1;
-          if (prescaler > MAX_PRESCALER)
-            {
-              prescaler = MAX_PRESCALER;
-            }
-        }
-    }
-  while (divisor >= 0x10000);
-
-  dbg("prescaler=0x%x divisor=0x%x\n", prescaler, divisor);
-
-  mode  = wdt_prescaletoptv(prescaler);
-  mode &= ~C5471_TIMER_AUTORELOAD; /* One shot mode. */
-  mode |= divisor << 5;
-  dbg("mode=0x%x\n", mode);
-
-  c5471_wdt_cntl = mode;
-
-  /* Now start the watchdog */
-
-  c5471_wdt_cntl |= C5471_TIMER_STARTBIT;
-  dbg("cntl_timer=0x%x\n", c5471_wdt_cntl);
-
-  return 0;
-}
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Name: wdt_interrupt
- **************************************************************************/
-
-static int wdt_interrupt(int irq, void *context)
-{
-  dbg("expired\n");
-
-#if defined(CONFIG_SOFTWARE_REBOOT)
-#  if defined(CONFIG_SOFTWARE_TEST)
-  dbg("  Test only\n");
-#  else
-  dbg("  Re-booting\n");
-#    warning "Add logic to reset CPU here"
-#  endif
-#else
-  dbg("  No reboot\n");
-#endif
-  return OK;
-}
-
-/**************************************************************************
- * Name: wdt_read
- **************************************************************************/
-
-static ssize_t wdt_read(struct file *filep, char *buffer, size_t buflen)
-{
-  /* We are going to return "NNNNNNNN NNNNNNNN."  The followig logic will
-   * not work if the user provides a buffer smaller than 18 bytes.
-   */
-
-  dbg("buflen=%d\n", buflen);
-  if (buflen >= 18)
-    {
-      sprintf(buffer, "#08x %08x\n", c5471_wdt_cntl, c5471_wdt_count);
-      return 18;
-    }
-  return 0;
-}
-
-/**************************************************************************
- * Name: wdt_write
- **************************************************************************/
-
-static ssize_t wdt_write(struct file *filep, const char *buffer, size_t buflen)
-{
-  dbg("buflen=%d\n", buflen);
-  if (buflen)
-    {
-      /* Reset the timer to the maximum delay */
-
-      wdt_setusec(MAX_WDT_USEC);
-      return 1;
-    }
-
-  return 0;
-}
-
-/**************************************************************************
- * Name: wdt_ioctl
- **************************************************************************/
-
-static int wdt_ioctl(struct file *filep, int cmd, uint32 arg)
-{
-  dbg("ioctl Call: cmd=0x%x arg=0x%x", cmd, arg);
-
-  /* Process the the IOCTL command (see arch/watchdog.h) */
-
-  switch(cmd)
-    {
-    case WDIOC_KEEPALIVE:
-      wdt_setusec(MAX_WDT_USEC);
-      break;
-
-    default:
-      *get_errno_ptr() = ENOTTY;
-      return ERROR;
-    }
-
-  return OK;
-}
-
-/**************************************************************************
- * Name: wdt_open
- **************************************************************************/
-
-static int wdt_open(struct file *filep)
-{
-  dbg("");
-
-  if (g_wdtopen)
-    {
-      *get_errno_ptr() = EBUSY;
-    }
-
-  /* This will automatically load the timer with its max
-   * count and start it running.
-   */
-
-  c5471_wdt_cntl = C5471_DISABLE_VALUE1;
-  c5471_wdt_cntl = C5471_DISABLE_VALUE2;
-
-  g_wdtopen = TRUE;
-  return OK;
-}
-
-/**************************************************************************
- * Name: wdt_close
- **************************************************************************/
-
-static int wdt_close(struct file *filep)
-{
-  dbg("");
-
-  /* The task controlling the watchdog has terminated.  Take the timer
-   *  the
-   * watchdog in interrupt mode -- we are going to reset unless the
-   * reopened again soon.
-   */
-
-#ifndef CONFIG_WATCHDOG_STRICT
-  c5471_wdt_cntl = C5471_TIMER_MODE;
-#endif
-
-  g_wdtopen = FALSE;
-  return 0;
-}
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-/**************************************************************************
- * Name: up_wdtinit
- **************************************************************************/
-
-int up_wdtinit(void)
-{
-  int ret;
-
-  dbg("C547x Watchdog Driver\n");
-
-  /* Register as /dev/wdt */
-
-  ret = register_driver("/dev/wdt", &g_wdtops, 0666, NULL);
-  if (ret)
-    {
-      return ERROR;
-    }
-
-  /* Register for an interrupt level callback through wdt_interrupt */
-
-  dbg("Attach to IRQ=%d\n", C5471_IRQ_WATCHDOG);
-
-  /* Make sure that the timer is stopped */
-
-  c5471_wdt_cntl = C5471_TIMER_STOP;
-
-  /* Request the interrupt. */
-
-  ret = irq_attach(C5471_IRQ_WATCHDOG, wdt_interrupt);
-  if (ret)
-    {
-      unregister_driver("/dev/wdt");
-      return ERROR;
-    }
-
-  return OK;
-}