Messages in this thread | | | Date | Wed, 10 Oct 2012 10:35:01 -0400 | From | Matt Porter <> | Subject | Re: [PATCH] ARM: OMAP2+: gpmc: Fix kernel BUG for DT boot mode |
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On Wed, Oct 10, 2012 at 02:19:40PM +0000, Vaibhav Hiremath wrote: > On Wed, Oct 10, 2012 at 19:30:27, Porter, Matt wrote: > > On Tue, Oct 09, 2012 at 02:27:20PM +0530, Vaibhav Hiremath wrote: > > > With recent changes in omap gpmc driver code, in case of DT > > > boot mode, where bootloader does not configure gpmc cs space > > > will result into kernel BUG() inside gpmc_mem_init() function, > > > as gpmc cs0 gpmc_config7[0].csvalid bit is set to '1' and > > > gpmc_config7[0].baseaddress is set to '0' on reset. > > > > > > This use-case is applicable for any board/EVM which doesn't have > > > any peripheral connected to gpmc cs0, for example BeagleXM and > > > BeagleBone, so DT boot mode fails. > > > > > > This patch adds of_have_populated_dt() check before creating > > > device, so that for DT boot mode, gpmc probe will not be called > > > which is expected behavior, as gpmc is not supported yet from DT. > > > > > > Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> > > > Cc: Afzal Mohammed <afzal@ti.com> > > > Cc: Tony Lindgren <tony@atomide.com> > > > Cc Paul Walmsley <paul@pwsan.com> > > > --- > > > This should go in for rc1, as this breaks AM33xx boot. > > > > Fixes BeagleBone on mainline. > > > > Tested-by: Matt Porter <mporter@ti.com> > > > > Thanks Matt and Afzal, > > Tony can this be picked up for rc1?? I know you have already sent pull > request for rc1, but by any chance you are planning to send another request?
I also found a separate problem with the mcasp clock data that's needed for rc1. I just posted a patch for that as I need both this patch and the clock data fix to boot from current mainline.
-Matt
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