Spansion flash not detected by CFI driver

Hello,
I have sent this mail in an other mail id. Looks like it hasn't reached the mailing list. Hence forwarding again.

I have a spansion flash (S71WS256ND0BFWEP) on my board (Freescale imx31 ADS).I use CFI driver with the below configuration. But I get the following error(debug message). I am not able to write to the flash memory too. Currently I use an other bootloader on the board to flash uboot. Could someone help me to resolve the problem.

#define CFG_FLASH_BASE 0xa0000000
#define CFG_MAX_FLASH_BANKS 1
#define CFG_MAX_FLASH_SECT 128
#define CFG_FLASH_CFI 1
#define CFG_FLASH_CFI_DRIVER 1
#define CFG_FLASH_USE_BUFFER_WRITE 1

U-Boot 1.2.0 (Apr 17 2007 - 18:43:30)

U-Boot code: 87F00000 -> 87F1BD48 BSS: -> 87F22370
CPU: Freescale i.MX31 at 398 MHz
Board: i.MX31 Litekit
RAM Configuration:
Bank #0: 80000000 128 MB
flash detect cfi
fwc addr a0000000 cmd 0 0 8bit x 8 bit
fwc addr a0000055 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr a0000010 is= 14 51
fwc addr a0000555 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr a0000010 is= 14 51
fwc addr a0000000 cmd 0 0000 16bit x 8 bit
fwc addr a00000aa cmd 98 9898 16bit x 8 bit
is= cmd 51(Q) addr a0000020 is= 0100 5151
fwc addr a0000aaa cmd 98 9898 16bit x 8 bit
is= cmd 51(Q) addr a0000020 is= 0051 5151
fwc addr a0000000 cmd 0 0000 16bit x 16 bit
fwc addr a00000aa cmd 98 0098 16bit x 16 bit
is= cmd 51(Q) addr a0000020 is= 0100 0051
fwc addr a0000aaa cmd 98 0098 16bit x 16 bit
is= cmd 51(Q) addr a0000020 is= 0051 0051
is= cmd 52(R) addr a0000022 is= 0052 0052
is= cmd 59(Y) addr a0000024 is= 0059 0059
ushort addr is at a0000050 info->portwidth = 2 addr[0] = 0x1
addr[1] = 0x0
addr[2] = 0x0
addr[3] = 0x0
retval = 0x1
device interface is 1
found port 2 chip 2 port 16 bits chip 16 bits ushort addr is at a0000026 info->portwidth = 2 addr[0] = 0x2
addr[1] = 0x0
addr[2] = 0x0
addr[3] = 0x0
retval = 0x2
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a0000aaa cmd aa 00aa 16bit x 16 bit
fwc addr a0000554 cmd 55 0055 16bit x 16 bit
fwc addr a0000aaa cmd 90 0090 16bit x 16 bit
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a0000aaa cmd 98 0098 16bit x 16 bit ushort addr is at a000002a info->portwidth = 2 addr[0] = 0x40
addr[1] = 0x0
addr[2] = 0x0
addr[3] = 0x0
retval = 0x40
a0000020 : 51 00 52 00 59 00 02 00 00 00 40 00 00 00 00 00 Q.R.Y..... at .....
a0000030 : 00 00 00 00 00 00 17 00 19 00 00 00 00 00 06 00 ................
a0000040 : 09 00 0a 00 00 00 04 00 04 00 03 00 00 00 19 00 ................
a0000050 : 01 00 00 00 06 00 00 00 03 00 03 00 00 00 80 00 ................
a0000060 : 00 00 fd 00 00 00 00 00 02 00 03 00 00 00 80 00 ................
a0000070 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0000080 : 50 00 52 00 49 00 31 00 34 00 10 00 02 00 01 00 P.R.I.1.4.......
a0000090 : 00 00 08 00 f3 00 01 00 00 00 85 00 95 00 01 00 ................
manufacturer is 2
manufacturer id is 0x1
device id is 0x7e
device id2 is 0x3000
cfi version is 0x3134
size_ratio 1 port 16 bits chip 16 bits
found 3 erase regions
long addr is at a000005a info->portwidth = 2 addr[0] = 0x3
addr[1] = 0x0
addr[2] = 0x0
addr[3] = 0x0
addr[4] = 0x80
addr[5] = 0x0
addr[6] = 0x0
addr[7] = 0x0
erase_region_count = 4 erase_region_size = 32768 long addr is at a0000062 info->portwidth = 2 addr[0] = 0xfd
addr[1] = 0x0
addr[2] = 0x0
addr[3] = 0x0
addr[4] = 0x0
addr[5] = 0x0
addr[6] = 0x2
addr[7] = 0x0
erase_region_count = 254 erase_region_size = 131072 long addr is at a0000000 info->portwidth = 0 erase_region_count = 65536 erase_region_size = 16776960 ushort addr is at a0000000 info->portwidth = 0 retval = 0xffff
Flash Size is 0
flash_protect ON: from 0xA0000000 to 0xA001BD47 flash_protect ON: from 0xA01F0000 to 0xA01FFFFF
Flash: 0 kB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial

### Set environment from HW MAC addr = "00:04:9F:00:0E:B0" ### main_loop entered: bootdelay=3

### main_loop: bootcmd="run bootcmd_net"
Hit any key to stop autoboot: 0
uboot>

Thanks,
Shiju

Actually this is already the 3rd time you are sending this.

That's pretty much of a nuisance. Stop doing this.

Wolfgang Denk

DENX Software Engineering GmbH, HRB 165235 Munich, CEO: Wolfgang Denk
Office:  Kirchenstr. 5,       D-82194 Groebenzell,            Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
To the systems programmer,  users  and  applications  serve  only  to
provide a test load.

Sorry for the repeated mails. I have subscribed to uboot mailing list and somehow my previous two mails(from gmail) didn't came to my inbox. So I thought it didn't go through. Only this mail came to my inbox.

Thanks,
Shiju