wrong cfi flash device id

[Jean-Christophe PLAGNIOL-VILLARD]

On 11:54 Tue 20 Nov     , zzs wrote:
> My board is very similar to at91rm9200ek but using
> a 8MB cfi flash AT49BV642D.
> 
> When barebox started, the flash info as blow:
> 
> # devinfo cfi_flash0
> CFI conformant FLASH (16 x 16)  Size: 8 MB in 135 Sectors
>   AMD Standard command set, Manufacturer ID: 0x1F, Device ID: 0xD6
>   Erase timeout: 8192 ms, write timeout: 256 us
>   Buffer write timeout: 64 us, buffer size: 4 bytes
> 
>   Sector Start Addresses:
>   10000000        10010000        10020000        10030000        10040000
>   10050000        10060000        10070000        10080000        10090000
>   100A0000        100B0000        100C0000        100D0000        100E0000
> 
> Barebox said the device id is 0xD6, But it should be 0x1D6.
> 
> Because of this wrong ID, In function drivers/nor/cfi_flash_amd.c:flash_fixup_atmel()
> the erase region were reversed.
> 
> So I can't erase the first few sectors
> 
> I think it should use read8 or read16 according the portwidth like
> u-boot does.
I check the kernel we need to read the id according the bus width

btw please use a real name zzs is either an english name or a chinese name

Best Regards,
J.