[PATCH 2/2] memory: omap-gpmc: Add Kconfig option for debug

[Pali Rohár]

On Monday 04 January 2016 20:13:56 Tony Lindgren wrote:
> * Ivaylo Dimitrov <ivo.g.dimitrov.75 at gmail.com> [160104 10:59]:
> > Hi,
> > 
> > On  4.01.2016 19:40, Tony Lindgren wrote:
> > >>On Monday 04 January 2016 18:02:06 Tony Lindgren wrote:
> > >>>> >Care to boot with CONFIG_OMAP_GPMC_DEBUG=y and post the gpmc related
> > >>>> >dmesg output?
> > 
> > Here it is, including the pre-gpmc log, keep in mind this is with restored
> > HWMOD_INIT_NO_RESET flag so rootfs is functional and I can get dmesg output
> > from the syslog. Don't know if it is helpful :). Also, this device has
> > Numonyx onenand (HW rev. 2204), unlike most of the others which have Samsung
> > onenand (HW rev. 2101 etc), no idea if it is relevant.
> 
> Thanks. I got the problem reproduced here too.
> 
> [    1.915557] gpmc cs0 after gpmc_cs_set_timings:
> [    1.920410] cs0 GPMC_CS_CONFIG1: 0xfb001201
> 
> Looks like in the failing case the clock rates are not properly
> calculated in GPMC and GPMCFCLKDIVIDER is set wrong in
> GPMC_CS_CONFIG1. Need to look at it more to figure out what's the
> best way to fix this.
> 
> Regards,
> 
> Tony

Hm... Maybe this problem is in U-Boot too?

-- 
Pali Rohár
pali.rohar at gmail.com