Does it mean I have to CFI_MTD ot common CFI_DRIVER will works?
I don't understand this question.
me neither
*----------------------------------------------------------------------*/ #define CONFIG_SYS_FLASH_CFI #define CONFIG_FLASH_CFI_DRIVER #define CONFIG_SYS_FLASH_EMPTY_INFO /* print 'E' for empty sector on flinfo */
#define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE} #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* number of banks */ #define CONFIG_SYS_MAX_FLASH_SECT 512 /* sectors per device */ #define CONFIG_FLASH_SHOW_PROGRESS 1
#define CONFIG_SYS_FLASH_ERASE_TOUT 220000 /* Timeout for Flash Erase (in ms) */ #define CONFIG_SYS_FLASH_WRITE_TOUT 100 /* Timeout for Flash Write (in ms) */
#define CONFIG_ENV_SECT_SIZE 0x20000 /* size of one complete sector */ #define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE-CONFIG_ENV_SECT_SIZE) #define CONFIG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
This looks good. With these defines the CFI driver should work. You might want to add CONFIG_SYS_FLASH_USE_BUFFER_WRITE for write speedup. And you need to configure your access timing for the chip select to the NOR Chip correctly of course.
Yes, we use #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1, on order to speed write ops. Our BR- and OR setting is very conservative since some signals are routed through an FPGA and are delayed. For this reason, we utilize 8 wait states.
Frank