diff options
Diffstat (limited to 'nuttx/arch/arm/src/imx/imx_memorymap.h')
| -rw-r--r-- | nuttx/arch/arm/src/imx/imx_memorymap.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/nuttx/arch/arm/src/imx/imx_memorymap.h b/nuttx/arch/arm/src/imx/imx_memorymap.h index 0c1e4de76..f2719a3c2 100644 --- a/nuttx/arch/arm/src/imx/imx_memorymap.h +++ b/nuttx/arch/arm/src/imx/imx_memorymap.h @@ -74,9 +74,13 @@ /* Virtual Memory Map ***************************************************************/ -#define IMX_SDRAM_VSECTION 0x00000000 /* -(+CONFIG_DRAM_SIZE) */ -#define IMX_FLASH_VSECTION 0x80000000 /* -(+CONFIG_FLASH_SIZE) */ -#define IMX_PERIPHERALS_VSECTION 0xe0000000 /* -0xe00fffff 1Mb */ +/* We use a simple identity mapping. The MMU is really only used to control the + * D-cache + */ + +#define IMX_PERIPHERALS_VSECTION 0x00200000 /* -0x002fffff 1Mb */ +#define IMX_SDRAM_VSECTION 0x08000000 /* -(+CONFIG_DRAM_SIZE) */ +#define IMX_FLASH_VSECTION 0x10000000 /* -(+CONFIG_FLASH_SIZE) */ /* Peripheral Register Offsets ******************************************************/ @@ -157,7 +161,7 @@ * This offset reserves space for the MMU page cache. */ -#define NUTTX_START_VBASE (IMX_SDRAM_VBASE+PGTABLE_SIZE) +#define NUTTX_START_VADDR (IMX_SDRAM_VSECTION+PGTABLE_SIZE) /* Section MMU Flags */ |