[U-Boot-Users] Spansion flash not detected by CFI driver

[Shiju]

On Thu, 2007-19-04 at 11:46 -0400, Shiju wrote:

> > > #define CFG_MAX_FLASH_BANKS 1
> > > #define CFG_MAX_FLASH_SECT 128
> > This is not correct for your chip. You should have this set not less 
> > than the total number of ease units (blocks) on your chip.
> > 
> > For what I could find on the net this chip seems to have the following 
> > interesting geometry:
> > 
> > 4 x 32kB
> > 254 x 128kB
> > 4 x 32kB
> > 
> > So, the total should be at least 4 + 254 + 4 = 262
> > 
> > Please fix this and provide the logs again...
> Thanks Tolunay,
> I could fix the flash detection after changing the total no: of sector
> to 262. But the flash unprotect sector always times out.The first 4
> sectors are protected when uboot comes up. I am not able to update uboot
> from within uboot since unprotect sectors  always fails on these(all)
> sector. Should I need to change any timeout values.The log is as below.
> 

> ### main_loop: bootcmd="run bootcmd_net"
> Hit any key to stop autoboot:  0
> uboot>
> uboot> protect off a0000000 +100000
> Flash unprotect timeout at address a0000000 data c68686c6
> .Flash unprotect timeout at address a0008000 data c68686c6
> .Flash unprotect timeout at address a0010000 data c68686c6
> .Flash unprotect timeout at address a0018000 data c68686c6
> .Flash unprotect timeout at address a0020000 data c68686c6
> .Flash unprotect timeout at address a0040000 data c68686c6
> .Flash unprotect timeout at address a0060000 data c68686c6
> .Flash unprotect timeout at address a0080000 data c68686c6
> .Flash unprotect timeout at address a00a0000 data c68686c6
> .Flash unprotect timeout at address a00c0000 data c68686c6
> .Flash unprotect timeout at address a00e0000 data c68686c6
> . done
> Un-Protected 11 sectors
> uboot>
I have another update. THe protect/unprotect failure was happening only
when I was using h/w protect enable. I disabled h/w protect to see
whether everything else goes well. But timeout happens on write as well.
Below is the log message. 

uboot> cp.b 0x80000000 0xa0000000 $(filesize)
Copy to Flash... Flash buffer write timeout at address a0000000 data
c68686c6
Timeout writing to Flash
uboot>

Thanks,
Shiju