Hi Christian,
On 21/10/2014 13:43, Christian Gmeiner wrote:
Hi all.
Finally I got basic board support for OT1200 into upstream, but the last released version fails to detect SPI flash (read only ff's).
The good one is commit 39d0973300b83c08f3f5047245ebf1de883b31f2 and the bad one is c43fd23cf619856b0763a64a6a3bcf3663058c49
[christian@chgm-pc u-boot]$ git bisect good There are only 'skip'ped commits left to test. The first bad commit could be any of: 540d434aa420bc056326f0f02135bb17e46be5b1 783e6a72b8278d59854ced41a4696c9a14abbb0b
Any hints?
My suggestion is to check changes in drivers/spi/mxc_spi.c and drivers/mtd/spi/ that were merged after you test your board. If only ff's are read, maybe the chip select is not driven - have you checked it ?
Best regards, Stefano Babic