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Add memorymap

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2972 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-10-07 01:58:16 +00:00
parent 61e3fda96c
commit c97a4497f8
2 changed files with 18 additions and 2 deletions
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16
arch/avr/src/at91uc3/at91uc3_memorymap.h
View File

@ -46,6 +46,22 @@
* Pre-processor Definitions
************************************************************************************/
/* Physical memory map */
#define AVR32_ONCHIP_FLASH_BASE 0x80000000 /* 512Kb Flash Array */
# define AVR32_APPL_BASE 0x80002000 /* 8Kb offset to application w/bootloader */
#define AVR32_USER_FLASH_BASE 0x80800000 /* Flash User Page */
# define AVR32_BTLDR_CONFIG 0x808001fc /* Bootloader configuration word */
/* Memory map for systems without an MMU */
#define AVR32_P1_BASE 0x80000000 /* 512MB non-translated space, cacheable */
#define AVR32_P2_BASE 0xa0000000 /* 512MB non-translated space, non-cacheable */
#define AVR32_P3_BASE 0xc0000000 /* 512MB translated space, cacheable */
#define AVR32_P4_BASE 0xe0000000 /* 512MB system space, non-cacheable */
/************************************************************************************
* Public Types
************************************************************************************/

4
arch/avr/src/avr32/up_nommuhead.S
View File

@ -52,7 +52,7 @@
#ifdef CONFIG_BOOT_RUNFROMFLASH
.global _sdata /* Start of .data section in RAM */
.global _edata /* End of .data section in RAM */
.global _erdonly /* Start of .data section in FLASH */
.global _eronly /* Start of .data section in FLASH */
#endif
.global up_lowinit /* Perform low level initialization */
.global up_boardinit /* Low-level board initialization */
@ -127,7 +127,7 @@ __start:
lda.w r0, _sdata /* r0=Start of .data section in RAM */
lda.w r1, _edata /* r1=End of .data section in RAM */
lda.w r2, _erdonly /* r2=Start of .data in FLASH */
lda.w r2, _eronly /* r2=Start of .data in FLASH */
rjmp 4f /* Start at the bottom of the loop */
3:
ld.d r4, r2++ /* Fetch the next data value */