Completes coding of the PWM module

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4200 7fd9a85b-ad96-42d3-883c-3090e2eb8679

9 files changed, 1611 insertions, 0 deletions

diff --git a/nuttx/configs/twr-k60n512/src/Makefile b/nuttx/configs/twr-k60n512/src/Makefile
new file mode 100644
index 000000000..4a5e743b7
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/Makefile
@@ -0,0 +1,105 @@
+############################################################################
+# configs/twr-k60n512/src/Makefile
+#
+#   Copyright (C) 2011 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		= 
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+
+CSRCS		= up_boot.c up_spi.c
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS		+= up_leds.c 
+endif
+
+ifeq ($(CONFIG_ARCH_BUTTONS),y)
+CSRCS		+= up_buttons.c 
+endif
+
+ifeq ($(CONFIG_NSH_ARCHINIT),y)
+CSRCS		+= up_nsh.c
+endif
+
+ifeq ($(CONFIG_USBDEV),y)
+CSRCS		+= up_usbdev.c
+endif
+
+ifeq ($(CONFIG_USBSTRG),y)
+CSRCS		+= up_usbstrg.c
+endif
+
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/armv7-m}"
+else
+  CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/armv7-m
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	@( for obj in $(OBJS) ; do \
+		$(call ARCHIVE, $@, $${obj}); \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	@touch $@
+
+depend: .depend
+
+clean:
+	@rm -f libboard$(LIBEXT) *~ .*.swp
+	$(call CLEAN)
+
+distclean: clean
+	@rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/twr-k60n512/src/twrk60-internal.h b/nuttx/configs/twr-k60n512/src/twrk60-internal.h
new file mode 100644
index 000000000..df60daae4
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/twrk60-internal.h
@@ -0,0 +1,309 @@
+/************************************************************************************
+ * configs/twr-k60n512/src/twrk60-internal.h
+ * arch/arm/src/board/twrk60-internal.h
+ *
+ *   Copyright (C) 2011 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.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_TWR_K60N512_SRC_TWRK60_INTERNAL_H
+#define __CONFIGS_TWR_K60N512_SRC_TWRK60_INTERNAL_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+#include <stdint.h>
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* How many SPI modules does this chip support? The LM3S6918 supports 2 SPI
+ * modules (others may support more -- in such case, the following must be
+ * expanded).
+ */
+
+#if KINETIS_NSPI < 1
+#  undef CONFIG_KINETIS_SPI1
+#  undef CONFIG_KINETIS_SPI2
+#elif KINETIS_NSPI < 2
+#  undef CONFIG_KINETIS_SPI2
+#endif
+
+/* TWR-K60N512 GPIOs ****************************************************************/
+/* On-Board Connections
+ * -------------------- ------------------------- -------- -------------------
+ * FEATURE              CONNECTION                PORT/PIN PIN FUNCTION
+ * -------------------- ------------------------- -------- -------------------
+ * OSJTAG USB-to-serial OSJTAG Bridge RX Data     PTE9     UART5_RX
+ * Bridge               OSJTAG Bridge TX Data     PTE8     UART5_TX
+ * SD Card Slot         SD Clock                  PTE2     SDHC0_DCLK
+ *                      SD Command                PTE3     SDHC0_CMD
+ *                      SD Data0                  PTE1     SDHC0_D0
+ *                      SD Data1                  PTE0     SDHC0_D1
+ *                      SD Data2                  PTE5     SDHC0_D2
+ *                      SD Data3                  PTE4     SDHC0_D3
+ *                      SD Card Detect            PTE28    PTE28
+ *                      SD Write Protect          PTE27    PTE27
+ * Infrared Port        IR Transmit               PTD7     CMT_IRO
+ *                      IR Receive                PTC6     CMP0_IN0
+ * Pushbuttons          SW1 (IRQ0)                PTA19    PTA19
+ *                      SW2 (IRQ1)                PTE26    PTE26
+ *                      SW3 (RESET)               RESET_b  RESET_b
+ * Touch Pads           E1 / Touch                PTA4     TSI0_CH5
+ *                      E2 / Touch                PTB3     TSI0_CH8
+ *                      E3 / Touch                PTB2     TSI0_CH7
+ *                      E4 / Touch                PTB16    TSI0_CH9
+ * LEDs                 E1 / Orange LED           PTA11    PTA11
+ *                      E2 / Yellow LED           PTA28    PTA28
+ *                      E3 / Green LED            PTA29    PTA29
+ *                      E4 / Blue LED             PTA10    PTA10
+ * Potentiometer        Potentiometer (R71)       ?        ADC1_DM1
+ * Accelerometer        I2C SDA                   PTD9     I2C0_SDA
+ *                      I2C SCL                   PTD8     I2C0_SCL
+ *                      IRQ                       PTD10    PTD10
+ * Touch Pad / Segment  Electrode 0 (J3 Pin 3)    PTB0     TSI0_CH0
+ * LCD TWRPI Socket     Electrode 1 (J3 Pin 5)    PTB1     TSI0_CH6
+ *                      Electrode 2 (J3 Pin 7)    PTB2     TSI0_CH7
+ *                      Electrode 3 (J3 Pin 8)    PTB3     TSI0_CH8
+ *                      Electrode 4 (J3 Pin 9)    PTC0     TSI0_CH13
+ *                      Electrode 5 (J3 Pin 10)   PTC1     TSI0_CH14
+ *                      Electrode 6 (J3 Pin 11)   PTC2     TSI0_CH15
+ *                      Electrode 7 (J3 Pin 12)   PTA4     TSI0_CH5
+ *                      Electrode 8 (J3 Pin 13)   PTB16    TSI0_CH9
+ *                      Electrode 9 (J3 Pin 14)   PTB17    TSI0_CH10
+ *                      Electrode 10 (J3 Pin 15)  PTB18    TSI0_CH11
+ *                      Electrode 11 (J3 Pin 16)  PTB19    TSI0_CH12
+ *                      TWRPI ID0 (J3 Pin 17)     ?        ADC1_DP1
+ *                      TWRPI ID1 (J3 Pin 18)     ?        ADC1_SE16
+ */
+ 
+#define GPIO_SD_CARDDETECT (GPIO_PULLUP | PIN_INT_BOTH | PIN_PORTE | PIN28)
+#define GPIO_SD_WRPROTECT  (GPIO_PULLUP | PIN_PORTE | PIN27)
+
+#define GPIO_SW1           (GPIO_PULLUP | PIN_INT_BOTH | PIN_PORTA | PIN19)
+#define GPIO_SW2           (GPIO_PULLUP | PIN_INT_BOTH | PIN_PORTE | PIN26)
+ 
+#define GPIO_LED1          (GPIO_LOWDRIVE | GPIO_OUTPUT_ZER0 | PIN_PORTA | PIN11)
+#define GPIO_LED2          (GPIO_LOWDRIVE | GPIO_OUTPUT_ZER0 | PIN_PORTA | PIN28)
+#define GPIO_LED3          (GPIO_LOWDRIVE | GPIO_OUTPUT_ZER0 | PIN_PORTA | PIN29)
+#define GPIO_LED4          (GPIO_LOWDRIVE | GPIO_OUTPUT_ZER0 | PIN_PORTA | PIN10)
+
+/* Connections via the General Purpose Tower Plug-in (TWRPI) Socket
+ * -------------------- ------------------------- -------- -------------------
+ * FEATURE             CONNECTION                 PORT/PIN PIN FUNCTION
+ * -------------------- ------------------------- -------- -------------------
+ * General Purpose      TWRPI AN0 (J4 Pin 8)       ?        ADC0_DP0/ADC1_DP3
+ * TWRPI Socket         TWRPI AN1 (J4 Pin 9)       ?        ADC0_DM0/ADC1_DM3
+ *                      TWRPI AN2 (J4 Pin 12)      ?        ADC1_DP0/ADC0_DP3
+ *                      TWRPI ID0 (J4 Pin 17)      ?        ADC0_DP1
+ *                      TWRPI ID1 (J4 Pin 18)      ?        ADC0_DM1
+ *                      TWRPI I2C SCL (J5 Pin 3)   PTD8     I2C0_SCL
+ *                      TWRPI I2C SDA (J5 Pin 4)   PTD9     I2C0_SDA
+ *                      TWRPI SPI MISO (J5 Pin 9)  PTD14    SPI2_SIN
+ *                      TWRPI SPI MOSI (J5 Pin 10) PTD13    SPI2_SOUT
+ *                      TWRPI SPI SS (J5 Pin 11)   PTD15    SPI2_PCS0
+ *                      TWRPI SPI CLK (J5 Pin 12)  PTD12    SPI2_SCK
+ *                      TWRPI GPIO0 (J5 Pin 15)    PTD10    PTD10
+ *                      TWRPI GPIO1 (J5 Pin 16)    PTB8     PTB8
+ *                      TWRPI GPIO2 (J5 Pin 17)    PTB9     PTB9
+ *                      TWRPI GPIO3 (J5 Pin 18)    PTA19    PTA19
+ *                      TWRPI GPIO4 (J5 Pin 19)    PTE26    PTE26
+ */
+
+/* Connections via the Tower Primary Connector Side A
+ * --- -------------------- --------------------------------
+ * PIN NAME                 USAGE
+ * --- -------------------- --------------------------------
+ * A7  SCL0                 PTD8
+ * A8  SDA0                 PTD9
+ * A9  GPIO9 / CTS1         PTC19
+ * A10 GPIO8 / SDHC_D2      PTE5
+ * A11 GPIO7 / SD_WP_DET    PTE27
+ * A13 ETH_MDC              PTB1
+ * A14 ETH_MDIO             PTB0
+ * A16 ETH_RXDV             PTA14
+ * A19 ETH_RXD1             PTA12
+ * A20 ETH_RXD0             PTA13
+ * A21 SSI_MCLK             PTE6
+ * A22 SSI_BCLK             PTE12
+ * A23 SSI_FS               PTE11
+ * A24 SSI_RXD              PTE7
+ * A25 SSI_TXD              PTE10
+ * A27 AN3                  PGA0_DP/ADC0_DP0/ADC1_DP3
+ * A28 AN2                  PGA0_DM/ADC0_DM0/ADC1_DM3
+ * A29 AN1                  PGA1_DP/ADC1_DP0/ADC0_DP3
+ * A30 AN0                  PGA1_DM/ADC1_DM0/ADC0_DM3
+ * A33 TMR1                 PTA9
+ * A34 TMR0                 PTA8
+ * A35 GPIO6                PTB9
+ * A37 PWM3                 PTA6
+ * A38 PWM2                 PTC3
+ * A39 PWM1                 PTC2
+ * A40 PWM0                 PTC1
+ * A41 RXD0                 PTE25
+ * A42 TXD0                 PTE24
+ * A43 RXD1                 PTC16
+ * A44 TXD1                 PTC17
+ * A64 CLKOUT0              PTC3
+ * A66 EBI_AD14             PTC0
+ * A67 EBI_AD13             PTC1
+ * A68 EBI_AD12             PTC2
+ * A69 EBI_AD11             PTC4
+ * A70 EBI_AD10             PTC5
+ * A71 EBI_AD9              PTC6
+ * A71 EBI_R/W_b            PTC11
+ * A72 EBI_AD8              PTC7
+ * A73 EBI_AD7              PTC8
+ * A74 EBI_AD6              PTC9
+ * A75 EBI_AD5              PTC10
+ * A76 EBI_AD4              PTD2
+ * A77 EBI_AD3              PTD3
+ * A78 EBI_AD2              PTD4
+ * A79 EBI_AD1              PTD5
+ * A80 EBI_AD0              PTD6
+ */
+
+/* Connections via the Tower Primary Connector Side B
+ * --- -------------------- --------------------------------
+ * PIN NAME                 USAGE
+ * --- -------------------- --------------------------------
+ * B7  SDHC_CLK / SPI1_CLK  PTE2
+ * B9  SDHC_D3 / SPI1_CS0_b PTE4
+ * B10 SDHC_CMD / SPI1_MOSI PTE1
+ * B11 SDHC_D0 / SPI1_MISO  PTE3
+ * B13 ETH_RXER             PTA5
+ * B15 ETH_TXEN             PTA15
+ * B19 ETH_TXD1             PTA17
+ * B20 ETH_TXD0             PTA16
+ * B21 GPIO1 / RTS1         PTC18
+ * B22 GPIO2 / SDHC_D1      PTE0
+ * B23 GPIO3                PTE28
+ * B24 CLKIN0               PTA18
+ * B25 CLKOUT1              PTE26
+ * B27 AN7                  PTB7
+ * B28 AN6                  PTB6
+ * B29 AN5                  PTB5
+ * B30 AN4                  PTB4
+ * B34 TMR2                 PTD6
+ * B35 GPIO4                PTB8
+ * B37 PWM7                 PTA2
+ * B38 PWM6                 PTA1
+ * B39 PWM5                 PTD5
+ * B40 PWM4                 PTA7
+ * B41 CANRX0               PTE25
+ * B42 CANTX0               PTE24
+ * B44 SPI0_MISO            PTD14
+ * B45 SPI0_MOSI            PTD13
+ * B46 SPI0_CS0_b           PTD11
+ * B47 SPI0_CS1_b           PTD15
+ * B48 SPI0_CLK             PTD12
+ * B50 SCL1                 PTD8
+ * B51 SDA1                 PTD9
+ * B52 GPIO5 / SD_CARD_DET  PTE28
+ * B55 IRQ_H                PTA24
+ * B56 IRQ_G                PTA24
+ * B57 IRQ_F                PTA25
+ * B58 IRQ_E                PTA25
+ * B59 IRQ_D                PTA26
+ * B60 IRQ_C                PTA26
+ * B61 IRQ_B                PTA27
+ * B62 IRQ_A                PTA27
+ * B63 EBI_ALE / EBI_CS1_b  PTD0
+ * B64 EBI_CS0_b            PTD1
+ * B66 EBI_AD15             PTB18
+ * B67 EBI_AD16             PTB17
+ * B68 EBI_AD17             PTB16
+ * B69 EBI_AD18             PTB11
+ * B70 EBI_AD19             PTB10
+ * B72 EBI_OE_b             PTB19
+ * B73 EBI_D7               PTB20
+ * B74 EBI_D6               PTB21
+ * B75 EBI_D5               PTB22
+ * B76 EBI_D4               PTB23
+ * B77 EBI_D3               PTC12
+ * B78 EBI_D2               PTC13
+ * B79 EBI_D1               PTC14
+ * B80 EBI_D0               PTC15
+ */
+
+/************************************************************************************
+ * Public Types
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: up_ledinit
+ *
+ * Description:
+ *   Initialize LED GPIOs so that LEDs can be controlled.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+extern void up_ledinit(void);
+#endif
+
+/************************************************************************************
+ * Name: kinetis_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the TWR-K60N512 board.
+ *
+ ************************************************************************************/
+
+extern void weak_function kinetis_spiinitialize(void);
+
+/************************************************************************************
+ * Name: kinetis_usbinitialize
+ *
+ * Description:
+ *   Called to setup USB-related GPIO pins for the TWR-K60N512 board.
+ *
+ ************************************************************************************/
+
+extern void weak_function kinetis_usbinitialize(void);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_TWR_K60N512_SRC_TWRK60_INTERNAL_H */
+
diff --git a/nuttx/configs/twr-k60n512/src/up_boot.c b/nuttx/configs/twr-k60n512/src/up_boot.c
new file mode 100644
index 000000000..d6cd382d1
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/up_boot.c
@@ -0,0 +1,102 @@
+/************************************************************************************
+ * configs/twr-k60n512/src/up_boot.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2011 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 <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "twrk60-internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: kinetis_boardinitialize
+ *
+ * Description:
+ *   All Kinetis architectures must provide the following entry point.  This entry
+ *   point is called early in the initialization -- after all memory has been
+ *   configured and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void kinetis_boardinitialize(void)
+{
+  /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
+   * kinetis_spiinitialize() has been brought into the link.
+   */
+
+#if defined(CONFIG_KINETIS_SPI1) || defined(CONFIG_KINETIS_SPI2)
+  if (kinetis_spiinitialize)
+    {
+      kinetis_spiinitialize();
+    }
+#endif
+
+   /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not
+    * disabled, and 3) the weak function kinetis_usbinitialize() has been brought
+    * into the build.
+    */
+
+#if defined(CONFIG_USBDEV) && defined(CONFIG_KINETIS_USB)
+  if (kinetis_usbinitialize)
+    {
+      kinetis_usbinitialize();
+    }
+#endif
+
+  /* Configure on-board LEDs if LED support has been selected. */
+
+#ifdef CONFIG_ARCH_LEDS
+  up_ledinit();
+#endif
+}
diff --git a/nuttx/configs/twr-k60n512/src/up_buttons.c b/nuttx/configs/twr-k60n512/src/up_buttons.c
new file mode 100644
index 000000000..c5f320923
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/up_buttons.c
@@ -0,0 +1,168 @@
+/****************************************************************************
+ * configs/twr-k60n512/src/up_buttons.c
+ *
+ *   Copyright (C) 2011 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 <stdint.h>
+
+#include <arch/board/board.h>
+#include "twrk60-internal.h"
+
+#ifdef CONFIG_ARCH_BUTTONS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+/* The TWR-K60N512 has user buttons (plus a reset button):
+ *
+ * 1. SW1 (IRQ0)   PTA19
+ * 2. SW2 (IRQ1)   PTE26
+ */
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_buttoninit
+ *
+ * Description:
+ *   up_buttoninit() must be called to initialize button resources.  After
+ *   that, up_buttons() may be called to collect the current state of all
+ *   buttons or up_irqbutton() may be called to register button interrupt
+ *   handlers.
+ *
+ ****************************************************************************/
+
+void up_buttoninit(void)
+{
+   /* Configure the two buttons as inputs */
+
+   kinetis_pinconfig(GPIO_SW1);
+   kinetis_pinconfig(GPIO_SW2);
+}
+
+/****************************************************************************
+ * Name: up_buttons
+ ****************************************************************************/
+
+uint8_t up_buttons(void)
+{
+  uint8_t ret = 0;
+
+  if (kinetis_gpioread(GPIO_SW1))
+    {
+      ret |= BUTTON_SW1_BIT;
+    }
+
+  if (kinetis_gpioread(GPIO_SW2))
+    {
+      ret |= BUTTON_SW2_BIT;
+    }
+
+  return ret
+}
+
+/************************************************************************************
+ * Button support.
+ *
+ * Description:
+ *   up_buttoninit() must be called to initialize button resources.  After
+ *   that, up_buttons() may be called to collect the current state of all
+ *   buttons or up_irqbutton() may be called to register button interrupt
+ *   handlers.
+ *
+ *   After up_buttoninit() has been called, up_buttons() may be called to
+ *   collect the state of all buttons.  up_buttons() returns an 8-bit bit set
+ *   with each bit associated with a button.  See the BUTTON_*_BIT and JOYSTICK_*_BIT
+ *   definitions in board.h for the meaning of each bit.
+ *
+ *   up_irqbutton() may be called to register an interrupt handler that will
+ *   be called when a button is depressed or released.  The ID value is a
+ *   button enumeration value that uniquely identifies a button resource. See the
+ *   BUTTON_* and JOYSTICK_* definitions in board.h for the meaning of enumeration
+ *   value.  The previous interrupt handler address is returned (so that it may
+ *   restored, if so desired).
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_ARCH_IRQBUTTONS
+xcpt_t up_irqbutton(int id, xcpt_t irqhandler)
+{
+  xcpt_t oldhandler = NULL;
+  uint32_t pinset;
+
+  /* Map the button id to the GPIO bit set. */
+
+  if (id == BUTTON_SW1)
+    {
+      pinset = GPIO_SW1;
+    }
+  else if (id == BUTTON_SW2)
+    {
+      pinset = GPIO_SW2;
+    }
+  else
+    {
+      return NULL;
+    }
+
+  /* The button has already been configured as an interrupting input (by
+   * up_buttoninit() above).
+   *
+   * Attach the new button handler.
+   */
+
+  oldhandler = knetis_pinirqattach(pinset, irqhandler);
+
+  /* Then make sure that interupts are enabled on the pin */
+
+  kinetis_pindmaenable(pinset);
+  return oldhandler;
+}
+#endif
+#endif /* CONFIG_ARCH_BUTTONS */
diff --git a/nuttx/configs/twr-k60n512/src/up_leds.c b/nuttx/configs/twr-k60n512/src/up_leds.c
new file mode 100644
index 000000000..fe03db368
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/up_leds.c
@@ -0,0 +1,263 @@
+/****************************************************************************
+ * configs/twr-k60n512/src/up_leds.c
+ * arch/arm/src/board/up_leds.c
+ *
+ *   Copyright (C) 2011 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 <debug.h>
+
+#include "kinetis_internal.h"
+#include "twrk60-internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+/* The TWR-K60N512 has four LEDs:
+ *
+ * 1. E1 / Orange LED   PTA11
+ * 2. E2 / Yellow LED   PTA28
+ * 3. E3 / Green LED    PTA29
+ * 4  E4 / Blue LED     PTA10
+ */
+
+/* The following definitions map the encoded LED setting to GPIO settings */
+
+#define K60_LED1          (1 << 0)
+#define K60_LED2          (1 << 1)
+#define K60_LED3          (1 << 2)
+#define K60_LED4          (1 << 3)
+
+#define ON_SETBITS_SHIFT  (0)
+#define ON_CLRBITS_SHIFT  (4)
+#define OFF_SETBITS_SHIFT (8)
+#define OFF_CLRBITS_SHIFT (12)
+
+#define ON_BITS(v)        ((v) & 0xff)
+#define OFF_BITS(v)       (((v) >> 8) & 0x0ff)
+#define SETBITS(b)        ((b) & 0x0f)
+#define CLRBITS(b)        (((b) >> 4) & 0x0f)
+
+#define ON_SETBITS(v)     (SETBITS(ON_BITS(v))
+#define ON_CLRBITS(v)     (CLRBITS(ON_BITS(v))
+#define OFF_SETBITS(v)    (SETBITS(OFF_BITS(v))
+#define OFF_CLRBITS(v)    (CLRBITS(OFF_BITS(v))
+
+#define LED_STARTED_ON_SETBITS       ((K60_LED1) << ON_SETBITS_SHIFT)
+#define LED_STARTED_ON_CLRBITS       ((K60_LED2|K60_LED3|K60_LED4) << ON_CLRBITS_SHIFT)
+#define LED_STARTED_OFF_SETBITS      (0 << OFF_SETBITS_SHIFT)
+#define LED_STARTED_OFF_CLRBITS      ((K60_LED1|K60_LED2|K60_LED3|K60_LED4) << OFF_CLRBITS_SHIFT)
+
+#define LED_HEAPALLOCATE_ON_SETBITS  ((K60_LED2) << ON_SETBITS_SHIFT)
+#define LED_HEAPALLOCATE_ON_CLRBITS  ((K60_LED1|K60_LED3|K60_LED4) << ON_CLRBITS_SHIFT)
+#define LED_HEAPALLOCATE_OFF_SETBITS ((K60_LED1) << OFF_SETBITS_SHIFT)
+#define LED_HEAPALLOCATE_OFF_CLRBITS ((K60_LED2|K60_LED3|K60_LED4) << OFF_CLRBITS_SHIFT)
+
+#define LED_IRQSENABLED_ON_SETBITS   ((K60_LED1|K60_LED2) << ON_SETBITS_SHIFT)
+#define LED_IRQSENABLED_ON_CLRBITS   ((K60_LED3|K60_LED4) << ON_CLRBITS_SHIFT)
+#define LED_IRQSENABLED_OFF_SETBITS  ((K60_LED2) << OFF_SETBITS_SHIFT)
+#define LED_IRQSENABLED_OFF_CLRBITS  ((K60_LED1|K60_LED3|K60_LED4) << OFF_CLRBITS_SHIFT)
+
+#define LED_STACKCREATED_ON_SETBITS  ((K60_LED3) << ON_SETBITS_SHIFT)
+#define LED_STACKCREATED_ON_CLRBITS  ((K60_LED1|K60_LED2|K60_LED4) << ON_CLRBITS_SHIFT)
+#define LED_STACKCREATED_OFF_SETBITS ((K60_LED1|K60_LED2) << OFF_SETBITS_SHIFT)
+#define LED_STACKCREATED_OFF_CLRBITS ((K60_LED3|K60_LED4) << OFF_CLRBITS_SHIFT)
+
+#define LED_INIRQ_ON_SETBITS         ((K60_LED1) << ON_SETBITS_SHIFT)
+#define LED_INIRQ_ON_CLRBITS         ((0) << ON_CLRBITS_SHIFT)
+#define LED_INIRQ_OFF_SETBITS        ((0) << OFF_SETBITS_SHIFT)
+#define LED_INIRQ_OFF_CLRBITS        ((K60_LED1) << OFF_CLRBITS_SHIFT)
+
+#define LED_SIGNAL_ON_SETBITS        ((K60_LED2) << ON_SETBITS_SHIFT)
+#define LED_SIGNAL_ON_CLRBITS        ((0) << ON_CLRBITS_SHIFT)
+#define LED_SIGNAL_OFF_SETBITS       ((0) << OFF_SETBITS_SHIFT)
+#define LED_SIGNAL_OFF_CLRBITS       ((K60_LED2) << OFF_CLRBITS_SHIFT)
+
+#define LED_ASSERTION_ON_SETBITS     ((K60_LED4) << ON_SETBITS_SHIFT)
+#define LED_ASSERTION_ON_CLRBITS     ((0) << ON_CLRBITS_SHIFT)
+#define LED_ASSERTION_OFF_SETBITS    ((0) << OFF_SETBITS_SHIFT)
+#define LED_ASSERTION_OFF_CLRBITS    ((K60_LED4) << OFF_CLRBITS_SHIFT)
+
+#define LED_PANIC_ON_SETBITS         ((K60_LED4) << ON_SETBITS_SHIFT)
+#define LED_PANIC_ON_CLRBITS         ((0) << ON_CLRBITS_SHIFT)
+#define LED_PANIC_OFF_SETBITS        ((0) << OFF_SETBITS_SHIFT)
+#define LED_PANIC_OFF_CLRBITS        ((K60_LED4) << OFF_CLRBITS_SHIFT)
+
+/* Enables debug output from this file (needs CONFIG_DEBUG with
+ * CONFIG_DEBUG_VERBOSE too)
+ */
+
+#undef LED_DEBUG  /* Define to enable debug */
+
+#ifdef LED_DEBUG
+#  define leddbg  lldbg
+#  define ledvdbg llvdbg
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const uint16_t g_ledbits[8] =
+{
+  (LED_STARTED_ON_SETBITS       | LED_STARTED_ON_CLRBITS |
+   LED_STARTED_OFF_SETBITS      | LED_STARTED_OFF_CLRBITS),
+
+  (LED_HEAPALLOCATE_ON_SETBITS  | LED_HEAPALLOCATE_ON_CLRBITS |
+   LED_HEAPALLOCATE_OFF_SETBITS | LED_HEAPALLOCATE_OFF_CLRBITS),
+
+  (LED_IRQSENABLED_ON_SETBITS   | LED_IRQSENABLED_ON_CLRBITS |
+   LED_IRQSENABLED_OFF_SETBITS  | LED_IRQSENABLED_OFF_CLRBITS),
+
+  (LED_STACKCREATED_ON_SETBITS  | LED_STACKCREATED_ON_CLRBITS |
+   LED_STACKCREATED_OFF_SETBITS | LED_STACKCREATED_OFF_CLRBITS),
+
+  (LED_INIRQ_ON_SETBITS         | LED_INIRQ_ON_CLRBITS |
+   LED_INIRQ_OFF_SETBITS        | LED_INIRQ_OFF_CLRBITS),
+
+  (LED_SIGNAL_ON_SETBITS        | LED_SIGNAL_ON_CLRBITS |
+   LED_SIGNAL_OFF_SETBITS       | LED_SIGNAL_OFF_CLRBITS),
+
+  (LED_ASSERTION_ON_SETBITS     | LED_ASSERTION_ON_CLRBITS |
+   LED_ASSERTION_OFF_SETBITS    | LED_ASSERTION_OFF_CLRBITS),
+
+  (LED_PANIC_ON_SETBITS         | LED_PANIC_ON_CLRBITS |
+   LED_PANIC_OFF_SETBITS        | LED_PANIC_OFF_CLRBITS)
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static inline void led_clrbits(unsigned int clrbits)
+{
+  if ((clrbits & K60_LED1) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED1, false);
+    }
+
+  if ((clrbits & K60_LED2) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED2, false);
+    }
+
+  if ((clrbits & K60_LED3) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED3, false);
+    }
+
+  if ((clrbits & K60_LED4) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED4, false);
+    }
+}
+
+static inline void led_setbits(unsigned int setbits)
+{
+  if ((setbits & K60_LED1) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED1, true);
+    }
+
+  if ((setbits & K60_LED2) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED2, true);
+    }
+
+  if ((setbits & K60_LED3) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED3, true);
+    }
+
+  if ((setbits & K60_LED4) != 0)
+    {
+      kinetis_gpiowrite(GPIO_LED4, true);
+    }
+}
+
+static void led_setonoff(unsigned int bits)
+{
+  led_clrbits(CLRBITS(bits));
+  led_setbits(SETBITS(bits));
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_ledinit
+ *
+ * Description:
+ *   Initialize LED GPIOs so that LEDs can be controlled.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void up_ledinit(void)
+{
+   /* Configure LED1-4 GPIOs for output */
+
+   kinetis_pinconfig(GPIO_LED1);
+   kinetis_pinconfig(GPIO_LED2);
+   kinetis_pinconfig(GPIO_LED3);
+   kinetis_pinconfig(GPIO_LED4);
+}
+
+/****************************************************************************
+ * Name: up_ledon
+ ****************************************************************************/
+
+void up_ledon(int led)
+{
+  led_setonoff(ON_BITS(g_ledbits[led]));
+}
+
+/****************************************************************************
+ * Name: up_ledoff
+ ****************************************************************************/
+
+void up_ledoff(int led)
+{
+  led_setonoff(OFF_BITS(g_ledbits[led]));
+}
+
+#endif /* CONFIG_ARCH_LEDS */
diff --git a/nuttx/configs/twr-k60n512/src/up_nsh.c b/nuttx/configs/twr-k60n512/src/up_nsh.c
new file mode 100644
index 000000000..2079f52a0
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/up_nsh.c
@@ -0,0 +1,267 @@
+/****************************************************************************
+ * config/twr-k60n512/src/up_nsh.c
+ * arch/arm/src/board/up_nsh.c
+ *
+ *   Copyright (C) 2011 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 <stdbool.h>
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#ifdef CONFIG_KINETIS_SDHC
+#  include <nuttx/sdio.h>
+#  include <nuttx/mmcsd.h>
+#endif
+
+#include "kinetis_internal.h"
+#include "twrk60-internal.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+/* PORT and SLOT number probably depend on the board configuration */
+
+#ifdef CONFIG_ARCH_BOARD_TWR_K60N512
+#  define CONFIG_NSH_HAVEUSBDEV 1
+#  define CONFIG_NSH_HAVEMMCSD  1
+#  if defined(CONFIG_NSH_MMCSDSLOTNO) && CONFIG_NSH_MMCSDSLOTNO != 0
+#    error "Only one MMC/SD slot, slot 0"
+#    undef CONFIG_NSH_MMCSDSLOTNO
+#  endif
+#  ifndef CONFIG_NSH_MMCSDSLOTNO
+#    define CONFIG_NSH_MMCSDSLOTNO 0
+#  endif
+#else
+   /* Add configuration for new Kinetis boards here */
+#  error "Unrecognized Kinetis board"
+#  undef CONFIG_NSH_HAVEUSBDEV
+#  undef CONFIG_NSH_HAVEMMCSD
+#endif
+
+/* Can't support USB features if USB is not enabled */
+
+#ifndef CONFIG_USBDEV
+#  undef CONFIG_NSH_HAVEUSBDEV
+#endif
+
+/* Can't support MMC/SD features if mountpoints are disabled or if SDHC support
+ * is not enabled.
+ */
+
+#if defined(CONFIG_DISABLE_MOUNTPOINT) || !defined(CONFIG_KINETIS_SDHC)
+#  undef CONFIG_NSH_HAVEMMCSD
+#endif
+
+#ifndef CONFIG_NSH_MMCSDMINOR
+#  define CONFIG_NSH_MMCSDMINOR 0
+#endif
+
+/* We expect to receive GPIO interrupts for card insertion events */
+
+#ifndef CONFIG_GPIO_IRQ
+#  error "CONFIG_GPIO_IRQ required for card detect interrupt"
+#endif
+
+#ifndef CONFIG_KINETIS_PORTEINTS
+#  error "CONFIG_KINETIS_PORTEINTS required for card detect interrupt"
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#  else
+#    define message printf
+#  endif
+#endif
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/* This structure encapsulates the global variable used in this file and
+ * reduces the probability of name collistions.
+ */
+
+#ifdef CONFIG_NSH_HAVEMMCSD
+struct kinetis_nsh_s
+{
+  FAR struct sdio_dev_s *sdhc; /* SDIO driver handle */
+  bool inserted;               /* True: card is inserted */
+};
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#ifdef CONFIG_NSH_HAVEMMCSD
+static struct kinetis_nsh_s g_nsh;
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: kinetis_mediachange
+ ****************************************************************************/
+
+#ifdef CONFIG_NSH_HAVEMMCSD
+static void kinetis_mediachange(void)
+{
+  bool inserted;
+
+  /* Get the current value of the card detect pin.  This pin is pulled up on
+   * board.  So low means that a card is present.
+   */
+
+  inserted = !kinetis_gpioread(GPIO_SD_CARDDETECT);
+
+  /* Has the pin changed state? */
+
+  if (inserted != g_nsh.inserted)
+    {
+      /* Yes.. perform the appropriate action (this might need some debounce). */
+
+      g_nsh.inserted = inserted;
+      sdhc_mediachange(g_nsh.sdhc, inserted);
+
+      /* If the card has been inserted, then check if it is write protected
+       * as well.  The pin is pulled up, but apparently logic high means
+       * write protected.
+       */
+
+      if (inserted)
+        {
+          sdhc_wrprotect(g_nsh.sdhc, kinetis_gpioread(GPIO_SD_WRPROTECT));
+        }
+    }
+}
+#endif
+
+/****************************************************************************
+ * Name: kinetis_cdinterrupt
+ ****************************************************************************/
+
+#ifdef CONFIG_NSH_HAVEMMCSD
+static int kinetis_cdinterrupt(int irq, FAR void *context)
+{
+  /* All of the work is done by kinetis_mediachange() */
+
+  kinetis_mediachange();
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int nsh_archinitialize(void)
+{
+#ifdef CONFIG_NSH_HAVEMMCSD
+  int ret;
+
+  /* Configure GPIO pins */
+
+  /* Attached the card detect interrupt (but don't enable it yet) */
+
+  kinetis_pinconfig(GPIO_SD_CARDDETECT);
+  kinetis_pinirqattach(GPIO_SD_CARDDETECT, kinetis_cdinterrupt);
+
+  /* Configure the write protect GPIO */
+
+  kinetis_pinconfig(GPIO_SD_WRPROTECT);
+
+  /* Mount the SDHC-based MMC/SD block driver */
+  /* First, get an instance of the SDHC interface */
+
+  message("nsh_archinitialize: Initializing SDHC slot %d\n",
+          CONFIG_NSH_MMCSDSLOTNO);
+
+  g_nsh.sdhc = sdhc_initialize(CONFIG_NSH_MMCSDSLOTNO);
+  if (!g_nsh.sdhc)
+    {
+      message("nsh_archinitialize: Failed to initialize SDHC slot %d\n",
+              CONFIG_NSH_MMCSDSLOTNO);
+      return -ENODEV;
+    }
+
+  /* Now bind the SDHC interface to the MMC/SD driver */
+
+  message("nsh_archinitialize: Bind SDHC to the MMC/SD driver, minor=%d\n",
+          CONFIG_NSH_MMCSDMINOR);
+
+  ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, g_nsh.sdhc);
+  if (ret != OK)
+    {
+      message("nsh_archinitialize: Failed to bind SDHC to the MMC/SD driver: %d\n", ret);
+      return ret;
+    }
+  message("nsh_archinitialize: Successfully bound SDHC to the MMC/SD driver\n");
+
+  /* Handle the initial card state */
+
+  kinetis_mediachange();
+
+  /* Enable CD interrupts to handle subsequent media changes */
+
+  kinetis_pinirqenable(GPIO_SD_CARDDETECT);
+#endif
+  return OK;
+}
diff --git a/nuttx/configs/twr-k60n512/src/up_spi.c b/nuttx/configs/twr-k60n512/src/up_spi.c
new file mode 100644
index 000000000..6f8c3995b
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/up_spi.c
@@ -0,0 +1,164 @@
+/************************************************************************************
+ * configs/twr-k60n512/src/up_spi.c
+ * arch/arm/src/board/up_spi.c
+ *
+ *   Copyright (C) 2011 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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/spi.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "chip.h"
+#include "kinetis_internal.h"
+#include "twrk60-internal.h"
+
+#if defined(CONFIG_KINETIS_SPI1) || defined(CONFIG_KINETIS_SPI2)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Enables debug output from this file (needs CONFIG_DEBUG too) */
+
+#ifdef CONFIG_DEBUG_SPI
+#  define spidbg  lldbg
+#  ifdef CONFIG_DEBUG_SPI_VERBOSE
+#    define spivdbg lldbg
+#  else
+#    define spivdbg(x...)
+#  endif
+#else
+#  undef CONFIG_DEBUG_SPI_VERBOSE
+#  define spidbg(x...)
+#  define spivdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: kinetis_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the TWR-K60N512 board.
+ *
+ ************************************************************************************/
+
+void weak_function kinetis_spiinitialize(void)
+{
+# warning "Missing logic"
+}
+
+/****************************************************************************
+ * Name:  kinetis_spi1/2/3select and kinetis_spi1/2/3status
+ *
+ * Description:
+ *   The external functions, kinetis_spi1/2/3select and kinetis_spi1/2/3status must be
+ *   provided by board-specific logic.  They are implementations of the select
+ *   and status methods of the SPI interface defined by struct spi_ops_s (see
+ *   include/nuttx/spi.h). All other methods (including up_spiinitialize())
+ *   are provided by common Kinetis logic.  To use this common SPI logic on your
+ *   board:
+ *
+ *   1. Provide logic in kinetis_boardinitialize() to configure SPI chip select
+ *      pins.
+ *   2. Provide kinetis_spi1/2/3select() and kinetis_spi1/2/3status() functions in your
+ *      board-specific logic.  These functions will perform chip selection and
+ *      status operations using GPIOs in the way your board is configured.
+ *   3. Add a calls to up_spiinitialize() in your low level application
+ *      initialization logic
+ *   4. The handle returned by up_spiinitialize() may then be used to bind the
+ *      SPI driver to higher level logic (e.g., calling
+ *      mmcsd_spislotinitialize(), for example, will bind the SPI driver to
+ *      the SPI MMC/SD driver).
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_KINETIS_SPI1
+void kinetis_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+# warning "Missing logic"
+}
+
+uint8_t kinetis_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+# warning "Missing logic"
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#ifdef CONFIG_KINETIS_SPI2
+void kinetis_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+# warning "Missing logic"
+}
+
+uint8_t kinetis_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+# warning "Missing logic"
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#ifdef CONFIG_KINETIS_SPI3
+void kinetis_spi3select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+# warning "Missing logic"
+}
+
+uint8_t kinetis_spi3status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+# warning "Missing logic"
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#endif /* CONFIG_KINETIS_SPI1 || CONFIG_KINETIS_SPI2 */
diff --git a/nuttx/configs/twr-k60n512/src/up_usbdev.c b/nuttx/configs/twr-k60n512/src/up_usbdev.c
new file mode 100644
index 000000000..938ef43b5
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/up_usbdev.c
@@ -0,0 +1,115 @@
+/************************************************************************************
+ * configs/twr-k60n512/src/up_usbdev.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2011 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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/usb/usbdev.h>
+#include <nuttx/usb/usbdev_trace.h>
+
+#include "up_arch.h"
+#include "kinetis_internal.h"
+#include "twrk60-internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: kinetis_usbinitialize
+ *
+ * Description:
+ *   Called to setup USB-related GPIO pins for the TWR_K60N512 board.
+ *
+ ************************************************************************************/
+
+void kinetis_usbinitialize(void)
+{
+# warning "Missing logic"
+}
+
+/************************************************************************************
+ * Name:  kinetis_usbpullup
+ *
+ * Description:
+ *   If USB is supported and the board supports a pullup via GPIO (for USB software
+ *   connect and disconnect), then the board software must provide kinetis_pullup.
+ *   See include/nuttx/usb/usbdev.h for additional description of this method.
+ *   Alternatively, if no pull-up GPIO the following EXTERN can be redefined to be
+ *   NULL.
+ *
+ ************************************************************************************/
+
+int kinetis_usbpullup(FAR struct usbdev_s *dev, bool enable)
+{
+  usbtrace(TRACE_DEVPULLUP, (uint16_t)enable);
+# warning "Missing logic"
+  return OK;
+}
+
+/************************************************************************************
+ * Name:  kinetis_usbsuspend
+ *
+ * Description:
+ *   Board logic must provide the kinetis_usbsuspend logic if the USBDEV driver is
+ *   used.  This function is called whenever the USB enters or leaves suspend mode.
+ *   This is an opportunity for the board logic to shutdown clocks, power, etc.
+ *   while the USB is suspended.
+ *
+ ************************************************************************************/
+
+void kinetis_usbsuspend(FAR struct usbdev_s *dev, bool resume)
+{
+  ulldbg("resume: %d\n", resume);
+#warning "Missing logic"
+}
+
diff --git a/nuttx/configs/twr-k60n512/src/up_usbstrg.c b/nuttx/configs/twr-k60n512/src/up_usbstrg.c
new file mode 100644
index 000000000..cdc373205
--- /dev/null
+++ b/nuttx/configs/twr-k60n512/src/up_usbstrg.c
@@ -0,0 +1,118 @@
+/****************************************************************************
+ * configs/twr-k60n512/src/up_usbstrg.c
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Configure and register the Kinetis MMC/SD block driver.
+ *
+ * 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 <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/sdio.h>
+#include <nuttx/mmcsd.h>
+
+#include "kinetis_internal.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_EXAMPLES_USBSTRG_DEVMINOR1
+#  define CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 0
+#endif
+
+/* SLOT number(s) could depend on the board configuration */
+
+#ifdef CONFIG_ARCH_BOARD_TWR_K60N512
+#  undef KINETIS_MMCSDSLOTNO
+#  define KINETIS_MMCSDSLOTNO 0
+#else
+   /* Add configuration for new Kinetis boards here */
+#  error "Unrecognized Kinetis board"
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#    define msgflush()
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#    define msgflush() fflush(stdout)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#    define msgflush()
+#  else
+#    define message printf
+#    define msgflush() fflush(stdout)
+#  endif
+#endif
+
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: usbstrg_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int usbstrg_archinitialize(void)
+{
+  /* If examples/usbstrg is built as an NSH command, then SD slot should
+   * already have been initized in nsh_archinitialize() (see up_nsh.c).  In
+   * this case, there is nothing further to be done here.
+   */
+
+#ifndef CONFIG_EXAMPLES_USBSTRG_BUILTIN
+#  warning "Missing logic"
+#endif /* CONFIG_EXAMPLES_USBSTRG_BUILTIN */
+
+   return OK;
+}