diff options
Diffstat (limited to 'nuttx/arch/arm/src')
-rwxr-xr-x | nuttx/arch/arm/src/sam3u/Make.defs | 19 | ||||
-rwxr-xr-x | nuttx/arch/arm/src/sam3u/chip.h | 9 | ||||
-rwxr-xr-x | nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c | 126 | ||||
-rwxr-xr-x | nuttx/arch/arm/src/sam3u/sam3u_memorymap.h | 4 |
4 files changed, 147 insertions, 11 deletions
diff --git a/nuttx/arch/arm/src/sam3u/Make.defs b/nuttx/arch/arm/src/sam3u/Make.defs index 4c1bc0575..f35f0cc69 100755 --- a/nuttx/arch/arm/src/sam3u/Make.defs +++ b/nuttx/arch/arm/src/sam3u/Make.defs @@ -36,15 +36,16 @@ HEAD_ASRC = sam3u_vectors.S CMN_ASRCS = up_saveusercontext.S up_fullcontextrestore.S up_switchcontext.S -CMN_CSRCS = up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \ - up_createstack.c up_mdelay.c up_udelay.c up_exit.c \ - up_idle.c up_initialize.c up_initialstate.c up_interruptcontext.c \ - up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \ - up_releasepending.c up_releasestack.c up_reprioritizertr.c \ - up_schedulesigaction.c up_sigdeliver.c up_unblocktask.c \ - up_usestack.c up_doirq.c up_hardfault.c up_svcall.c +CMN_CSRCS = up_assert.c up_blocktask.c up_copystate.c up_createstack.c \ + up_mdelay.c up_udelay.c up_exit.c up_idle.c up_initialize.c \ + up_initialstate.c up_interruptcontext.c up_modifyreg8.c \ + up_modifyreg16.c up_modifyreg32.c up_releasepending.c \ + up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c \ + up_sigdeliver.c up_unblocktask.c up_usestack.c up_doirq.c \ + up_hardfault.c up_svcall.c CHIP_ASRCS = -CHIP_CSRCS = sam3u_clockconfig.c sam3u_gpioirq.c sam3u_irq.c sam3u_lowputc.c \ - sam3u_pio.c sam3u_serial.c sam3u_start.c sam3u_timerisr.c +CHIP_CSRCS = sam3u_allocateheap.c sam3u_clockconfig.c sam3u_gpioirq.c \ + sam3u_irq.c sam3u_lowputc.c sam3u_pio.c sam3u_serial.c \ + sam3u_start.c sam3u_timerisr.c diff --git a/nuttx/arch/arm/src/sam3u/chip.h b/nuttx/arch/arm/src/sam3u/chip.h index 3f675a6f2..548f6b0fc 100755 --- a/nuttx/arch/arm/src/sam3u/chip.h +++ b/nuttx/arch/arm/src/sam3u/chip.h @@ -48,6 +48,15 @@ /* Get customizations for each supported chip */ +#ifdef CONFIG_ARCH_CHIP_AT91SAM3U4E +# define CONFIG_SAM3U_SRAM0_SIZE 0x00008000 /* 32Kb */ +# define CONFIG_SAM3U_SRAM1_SIZE 0x00004000 /* 16Kb */ +# define CONFIG_SAM3U_NFCSRAM_SIZE 0x00001000 /* 4Kb */ + +#else +# error "Unknown SAM3U chip type" +#endif + /* Include only the memory map. Other chip hardware files should then include this * file for the proper setup */ diff --git a/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c b/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c new file mode 100755 index 000000000..2bd8cacab --- /dev/null +++ b/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c @@ -0,0 +1,126 @@ +/**************************************************************************** + * arch/arm/src/common/sam3u_allocateheap.c + * + * Copyright (C) 2010 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 <debug.h> + +#include <nuttx/arch.h> +#include <arch/board/board.h> + +#include "chip.h" +#include "up_arch.h" +#include "up_internal.h" + +/**************************************************************************** + * Private Definitions + ****************************************************************************/ + +#if CONFIG_MM_REGIONS < 2 +# warning "CONFIG_MM_REGIONS < 2: SRAM1 not included in HEAP" +#endif + +#if CONFIG_MM_REGIONS < 3 && !defined(CONFIG_SAM3U_NAND) +# warning "CONFIG_MM_REGIONS < 3: NFC SRAM not included in HEAP" +#endif + +#if CONFIG_MM_REGIONS > 2 && defined(CONFIG_SAM3U_NAND) +# error "CONFIG_MM_REGIONS > 3 but cannot used NFC SRAM" +# undef CONFIG_MM_REGIONS +# define CONFIG_MM_REGIONS 2 +#endif + +#if CONFIG_DRAM_END > (SAM3U_INTSRAM0_BASE+CONFIG_SAM3U_SRAM0_SIZE) +# error "CONFIG_DRAM_END is beyond the end of SRAM0" +# undef CONFIG_DRAM_END +# define CONFIG_DRAM_END (SAM3U_INTSRAM0_BASE+CONFIG_SAM3U_SRAM0_SIZE) +#elif CONFIG_DRAM_END < (SAM3U_INTSRAM0_BASE+CONFIG_SAM3U_SRAM0_SIZE) +# warning "CONFIG_DRAM_END is before end of SRAM0... not all of SRAM0 used" +#endif + +/**************************************************************************** + * 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; +} + +/************************************************************************ + * Name: up_addregion + * + * Description: + * Memory may be added in non-contiguous chunks. Additional chunks are + * added by calling this function. + * + ************************************************************************/ + +#if CONFIG_MM_REGIONS > 1 +void up_addregion(void) +{ + mm_addregion((FAR void*)SAM3U_INTSRAM1_BASE, CONFIG_SAM3U_SRAM1_SIZE); + +#if CONFIG_MM_REGIONS > 2 + mm_addregion((FAR void*)SAM3U_NFCSRAM_BASE, CONFIG_SAM3U_NFCSRAM_SIZE); +#endif +} +#endif diff --git a/nuttx/arch/arm/src/sam3u/sam3u_memorymap.h b/nuttx/arch/arm/src/sam3u/sam3u_memorymap.h index da4977015..8f48bbb5f 100755 --- a/nuttx/arch/arm/src/sam3u/sam3u_memorymap.h +++ b/nuttx/arch/arm/src/sam3u/sam3u_memorymap.h @@ -54,8 +54,8 @@ # define SAM3U_INTROM_BASE 0x00180000 /* 0x00180000-0x001fffff: Internal ROM */
/* 0x00200000-0x1fffffff: Reserved */
#define SAM3U_INTSRAM_BASE 0x20000000 /* 0x20000000-0x3fffffff: Internal SRAM */
-# define SAM3U_INTSRAM0_BASE 0x20000000 /* 0x20000000-0x2007ffff: SRAM0 */
-# define SAM3U_INTSRAM1_BASE 0x20080000 /* 0x20080000-0x200fffff: SRAM1 */
+# define SAM3U_INTSRAM0_BASE 0x20000000 /* 0x20000000-0x2007ffff: SRAM0 (see chip.h) */
+# define SAM3U_INTSRAM1_BASE 0x20080000 /* 0x20080000-0x200fffff: SRAM1 (see chip.h) */
# define SAM3U_NFCSRAM_BASE 0x20100000 /* 0x20100000-0x207fffff: NAND FLASH controller (SRAM) */
# define SAM3U_UDPHPSDMS_BASE 0x20180000 /* 0x20180000-0x201fffff: USB Device High Speed (DMA) */
/* 0x20200000-0x2fffffff: Undefined */
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