Hi All i m configuring u-boot bootloader for dm270. for this i have to initialize all memory settings for this i have done following settings in header file

/*----------------------------------------------------------------------- * Physical Memory Map */ #define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */ #define PHYS_SDRAM_1 0x00900000 /* SDRAM Bank #1 */ #define PHYS_SDRAM_1_SIZE 0x01800000 /* 24 MB */

#define PHYS_FLASH_1 0x00100000 /* Flash Bank #1 */ #define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */

#define CFG_FLASH_BASE PHYS_FLASH_1

/*----------------------------------------------------------------------- * FLASH and environment organization */ #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */

/* timeout values are in ticks */ #define CFG_FLASH_ERASE_TOUT (2*CFG_HZ) /* Timeout for Flash Erase */ #define CFG_FLASH_WRITE_TOUT (2*CFG_HZ) /* Timeout for Flash Write */

#define CFG_ENV_IS_IN_FLASH 1 #define CFG_ENV_ADDR (PHYS_FLASH_1 + 0x1C000)/* Addr of Environment Sector */ #define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */

what r the various registers of dm270 that i have to initialize to configure flash and SDRAM in memsetup.S any help will be highly appreciated

Thanks and Regards Vipul Dashora