Hi Stefan, On Wed, Feb 20, 2013 at 7:27 PM, Stefan Roese <s...@denx.de> wrote: > On 18.02.2013 10:57, Jagan Teki wrote: >> I have a 16MB, M29EW flash on target boards. >> >> I got the below info, while probing the flash. >> >> Bank # 1: CFI conformant flash (8 x 8) Size: 64 MB in 512 Sectors >> AMD Standard command set, Manufacturer ID: 0xFF, Device ID: 0xFF >> Erase timeout: 4096 ms, write timeout: 2 ms >> Buffer write timeout: 5 ms, buffer size: 1024 bytes >> >> Since the Manu.ID of this flash is 0x89, it got detected as 0xFF. >> >> Does u-boot code have a support for M29EW flash..? > > I'm pretty sure, yes. Which U-Boot version are you using? Most likely > its an older version. Your problem reminds me about this commit: > > Author: Philippe De Muyter <p...@macqel.be> 2010-08-10 16:54:52 > Committer: Stefan Roese <s...@denx.de> 2010-08-18 09:09:00 > Parent: 2e97394a6d07a36dfc139b7b98b12e452b5bd8dc (cfi_flash: flinfo: > allow user interrupt in flash print info fn) > Child: 70084df7125a0b67de707b999982ec67adfdc35c (cfi_flash: Cleanup > flash_print_info()) > Branches: many (98) > Follows: v2010.06 > Precedes: v2010.09-rc1 > > Fix printing & reading of 16-bit CFI device identifiers > > Fix reading and printing of CFI flashes 16-bit devices identifiers > > Nowadays CFI flashes have a 16-bit device identifier. U-boot still > print them and read them as if they were only 8-bit wide. Fix that. > Before: > Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x1B > After: > Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x881B > > So please update to the latest version and try again.
Sorry for not intimating the version I used, actually I am using the latest u-boot version 2013.01.01 Below link the head commit for cfi_flash.c http://git.denx.de/?p=u-boot.git;a=commit;h=d2af028db3f75390f56f018e16c0f269521e07c5 I am not sure whats wrong with code for detecting the m/c ID. Please let me know your inputs. Thanks, Jagan. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
