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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-12-26 16:55:21 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-12-26 16:55:21 +0000 |
commit | a5e34e6400a632d6e2eb96ee3f06aac0b5522535 (patch) | |
tree | 0eae3baaf3b3e91c60958afd38c976a3b4ba7282 /nuttx/arch/arm/src/lpc313x | |
parent | f8cc7c09f59766e5652c89a09f879b4b8bcafa4c (diff) | |
download | px4-nuttx-a5e34e6400a632d6e2eb96ee3f06aac0b5522535.tar.gz px4-nuttx-a5e34e6400a632d6e2eb96ee3f06aac0b5522535.tar.bz2 px4-nuttx-a5e34e6400a632d6e2eb96ee3f06aac0b5522535.zip |
LPC313X heap setup logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2436 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/lpc313x')
-rwxr-xr-x | nuttx/arch/arm/src/lpc313x/Make.defs | 2 | ||||
-rwxr-xr-x | nuttx/arch/arm/src/lpc313x/lpc313x_allocateheap.c | 92 | ||||
-rwxr-xr-x | nuttx/arch/arm/src/lpc313x/lpc313x_memorymap.h | 21 |
3 files changed, 113 insertions, 2 deletions
diff --git a/nuttx/arch/arm/src/lpc313x/Make.defs b/nuttx/arch/arm/src/lpc313x/Make.defs index 592ccaa71..002744355 100755 --- a/nuttx/arch/arm/src/lpc313x/Make.defs +++ b/nuttx/arch/arm/src/lpc313x/Make.defs @@ -46,4 +46,4 @@ CMN_CSRCS = up_assert.c up_blocktask.c up_copystate.c up_createstack.c \ up_undefinedinsn.c up_usestack.c CHIP_ASRCS = -CHIP_CSRCS = +CHIP_CSRCS = lpc313x_allocateheap.c diff --git a/nuttx/arch/arm/src/lpc313x/lpc313x_allocateheap.c b/nuttx/arch/arm/src/lpc313x/lpc313x_allocateheap.c new file mode 100755 index 000000000..471df465f --- /dev/null +++ b/nuttx/arch/arm/src/lpc313x/lpc313x_allocateheap.c @@ -0,0 +1,92 @@ +/************************************************************************ + * arch/arm/src/lpc313x/lpc313x_allocateheap.c + * + * Copyright (C) 2009 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 "up_arch.h" +#include "up_internal.h" +#include "lpc313x_memorymap.h" + +/************************************************************************ + * Pre-processor 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 to the end + * of SRAM. + * + * SRAM layout: + * Start of SRAM: .data + * .bss + * IDLE thread stack + * End of SRAm: heap + * + * NOTE: Ignore the erroneous nomenclature DRAM and SDRAM. That names + * date back to an earlier platform that had SDRAM. + * + ************************************************************************/ + +void up_allocate_heap(FAR void **heap_start, size_t *heap_size) +{ + up_ledon(LED_HEAPALLOCATE); + *heap_start = (FAR void*)g_heapbase; + *heap_size = (LPC313X_SRAM_VADDR + CONFIG_DRAM_SIZE) - g_heapbase; +} diff --git a/nuttx/arch/arm/src/lpc313x/lpc313x_memorymap.h b/nuttx/arch/arm/src/lpc313x/lpc313x_memorymap.h index ae01d024c..848a99445 100755 --- a/nuttx/arch/arm/src/lpc313x/lpc313x_memorymap.h +++ b/nuttx/arch/arm/src/lpc313x/lpc313x_memorymap.h @@ -116,7 +116,26 @@ /* To be provided */ /* LPC313X Virtual (mapped) Memory Map */ -/* To be provided */ +/* Temporary for now, just to get through compilation */ + +#define LPC313X_SHADOWSPACE_VSECTION 0x00000000 /* 0x00000000-0x00000fff: Shadow Area 4Kb */ +#define LPC313X_INTSRAM0_VSECTION 0x11028000 /* 0x11028000-0x1103ffff: Internal SRAM 0 96Kb */ +#define LPC313X_INTSRAM1_VSECTION 0x11040000 /* 0x11040000-0x11057fff: Internal SRAM 1 96Kb */ +# define LPC313X_SRAM_VADDR LPC313X_INTSRAM0_VSECTION +#define LPC313X_INTSROM0_VSECTION 0x12000000 /* 0x12000000-0x1201ffff: Internal SROM 0 128Kb */ +#define LPC313X_APB0_VSECTION 0x13000000 /* 0x13000000-0x13007fff: APB0 32Kb */ +#define LPC313X_APB1_VSECTION 0x13008000 /* 0x13008000-0x1300bfff: APB1 16Kb */ +#define LPC313X_APB2_VSECTION 0x15000000 /* 0x15000000-0x15003fff: APB2 16Kb */ +#define LPC313X_APB3_VSECTION 0x16000000 /* 0x16000000-0x160003ff: APB3 1Kb */ +#define LPC313X_APB4_VSECTION 0x17000000 /* 0x17000000-0x17000fff: APB4 4Kb */ +#define LPC313X_MPMC_VSECTION 0x17008000 /* 0x17008000-0x17008fff: MPMC cfg 4Kb */ +#define LPC313X_MCI_VSECTION 0x18000000 /* 0x18000000 0x180003ff: MCI/SD/SDIO 1Kb */ +#define LPC313X_USBOTG_VSECTION 0x19000000 /* 0x19000000-0x19000fff: USB OTG 4Kb */ +#define LPC313X_EXTSRAM0_VSECTION 0x20000000 /* 0x20000000-0x2001ffff: External SRAM 0 64-128Kb */ +#define LPC313X_EXTSRAM1_VSECTION 0x20020000 /* 0x20020000-0x2003ffff: External SRAM 1 64-128Kb */ +#define LPC313X_EXTSDRAM0_VSECTION 0x30000000 /* 0x30000000-0x37ffffff: External SDRAM 0 128Mb */ +#define LPC313X_INTC_VSECTION 0x60000000 /* 0x60000000-0x60000fff: Interrupt controller 4Kb */ +#define LPC313X_NAND_VSECTION 0x70000000 /* 0x70000000-0x700007ff: NANDFLASH Ctrl 2Kb */ /* The NuttX entry point starts at an offset from the virtual beginning of DRAM. * This offset reserves space for the MMU page cache. |