> Hello, Im new to all of this, but I 've been reading most of the post > related to the M29w256 numonyx and the u-boot documentation without > any success :( > > Im booting from MMC card and I want to parallel nor to be probed by > cfi, but I have not succeeded since the uboot code freezes when at the > beginning of the first "flash_cmd_write" in cfi_flash.c > > /* Issue FLASH reset command */ > flash_cmd_reset(info); > > The CS0_BASE_ADDR has an start address matching #define > WEIM_ARB_BASE_ADDR 0x08000000 , however the range of > the WEIM interface register settings are between 021B_8000 -- > 021B_8098. > > Many board files has the WEIM CS0 as the start of the registers and I > think this is why the NOR configuration is a matter of config settings > like the ones below. > > #define CONFIG_SYS_FLASH_BASE CS0_BASE_ADDR > #define CONFIG_SYS_MAX_FLASH_BANKS 1 > #define CONFIG_SYS_MAX_FLASH_SECT 256 > #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT > #define CONFIG_SYS_FLASH_CFI_AMD_RESET 1 > > /* Monitor at beginning of flash */ > #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE > #define CONFIG_SYS_MONITOR_LEN 0x40000 /* Reserve 256KiB > */ > > #define CONFIG_ENV_SECT_SIZE 0x20000 > #define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE > #define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x40000) > > /* Address and size of Redundant Environment Sector */ > #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + > CONFIG_ENV_SIZE) #define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE > > > If you could give me some help so that at least I could send write > commands to the chip without hang pls... >
You're pointing CFI to configuration registers, you need to point it to where the NOR flash is MMAPed. If it's not MMAPed, this isn't your driver. M _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
