just ignore the last incomplete mail, sorry for the inconvenience.

Hi,

I'm porting u-boot-1.3.2 on my MPC8270 board and using FLASH_CFI_DRIVER. The board has 4 x 28F256J3C using the same CS4, make up 64-bit wide 128MBytes flash memory at 0x10000000.

I add flash write/read command in cmd_flash.c as bellow, and write the data as the following command: U-boot-> flwrite 0x10000000 0x01 0x100 /*It's supposed to write 0x0102030405060708..... to the flash. */

U-boot-> flread 0x10000000 0x100 /* strange byte order when read back*/ 0x10000000: 01020304000f000f 0x10000008: 090a0b0c05060708 0x10000010: 111213140d0e0f10 0x10000018: 191a1b1c15161718 0x10000020: 212223241d1e1f20

I wonder how the function flash_write64 in cfi_flash.c works to load 8bytes to 64bit wide 60x-bus? Is there anyone have similar issue before?

int do_flwrite ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { ulong data_addr; uchar data_data; ulong data_count; ulong data_increase; ulong i,j,k; uchat data_buffer[128]; if (argc < 3) { printf ("Usage:\n%s\n", cmdtp->usage); return 1; }

data_addr = simple_strtoul(argv[1], NULL, 16); if ((data_addr < CFG_FLASH1_BASE ) || (data_addr > (CFG_FLASH1_BASE + (CFG_FLASH1_SIZE<<20) - 1) )) { printf ("Address is out of Bulk FLASH range, %x to %x supported\n", CFG_FLASH1_BASE, CFG_FLASH1_BASE + (CFG_FLASH1_SIZE<<20) -1); return 1; } data_data = simple_strtoul(argv[2], NULL, 16); if (argc == 3) { data_count = 1; }else{ data_count = simple_strtoul(argv[3], NULL, 16); }

if (argc == 4) { data_increase = 1; }else{ data_increase = 0; }

flash_info_t* info= &(flash_info[1]); for(i=0;i<data_count;i+=128){ k=data_count-i; for(j=0;j<128 && j<k;j++){ data_buffer[j] = data_data; data_data += data_increase; } switch( write_buff(info,data_buffer,data_addr+i,j) ){ case 0: printf("Write successfully.\n"); break; case 1: printf("Write timeout.\n"); break; case 2: printf("Flash not erased.\n"); break; } } return 0; } int do_flread ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { ulong data_addr; ulong data_count; int i; flash_info_t* info= &(flash_info[1]); if (argc < 2 ) { printf ("Usage:\n%s\n", cmdtp->usage); return 1; } data_addr = simple_strtoul(argv[1], NULL, 16); if ((data_addr < CFG_FLASH1_BASE ) || (data_addr > (CFG_FLASH1_BASE + (CFG_FLASH1_SIZE<<20) - 1) )) { printf ("Address is out of Bulk FLASH range, %x to %x supported\n", CFG_FLASH1_BASE, CFG_FLASH1_BASE + (CFG_FLASH1_SIZE<<20) -1); return 1; } data_addr &= ~(info->portwidth - 1); if (argc == 2) data_count = 1; else data_count = simple_strtoul(argv[2], NULL, 16);

char str[17]; str[16]='\0'; for(i=0;i<data_count;i+=8){ flash_readll(str,data_addr+i); printf ("0x%08X: %s\n",data_addr+i,str); } return 0; }

/*add flash_readll in cfi_flash.c*/ void flash_readll(char *str,void *addr) { print_longlong(str,flash_read64(addr)); }