On 12.07.2014 15:30, Gupta, Pekon wrote:
From: Tom Rini [mailto:tom.rini@gmail.com] On Behalf Of Rini, Tom
On Thu, Jul 10, 2014 at 07:28:00AM +0200, Stefan Roese wrote: Hi Pekon,
On 09.07.2014 20:22, Gupta, Pekon wrote:
Commit a0a37183 (ARM: omap: merge GPMC initialization code for all platform) broke NAND on OMAP3 based platforms. I noticed this while testing the latest 2014.07-rc version on the TAO3530 board. NAND detection did not work with this error message:
NAND: nand: error: Unable to find NAND settings in GPMC Configuration - quitting
As OMAP3 configs don't set CONFIG_NAND but CONFIG_NAND_CMD. the GPMC was not initialized for NAND at all. This patch now fixes this issue.
Sorry couldn't understand this, why have users enabled CONFIG_NAND_CMD, if CONFIG_NAND itself is not enabled ?
CONFIG_NAND doesn't seem to be a mandatory define if NAND is used.
Exactly. Adding in CONFIG_NAND is something that am335x started doing because of the cases where we do, or do not, want to assume NAND exists.
That is bad. We shouldn't have added any CONFIG just for sake of making one platform work, that to with very generic nomenclature. Anyways, given the fact we have two similar configs, Let's kill one of them completely. I think killing CONFIG_NAND would be easier, as it's used only in few TI specific am33xx boards. Agree ?
Yes. It would be great if you send an patch for this to be applied after this release. And we should take my patch for this release to fix this problem quickly.
Thanks, Stefan