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Subject: Re: [PATCH v5 00/16] OMAP2+ OneNAND driver update
To: Aaro Koskinen <aaro.koskinen@iki.fi>, Ladislav Michl <ladis@linux-mips.org>
CC: Tony Lindgren <tony@atomide.com>, Boris Brezillon
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From: Roger Quadros <rogerq@ti.com>
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Date: Thu, 11 Jan 2018 10:08:19 +0200
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On 10/01/18 23:27, Aaro Koskinen wrote:
> Hi,
> 
> On Wed, Jan 10, 2018 at 07:35:19PM +0200, Aaro Koskinen wrote:
>> On Wed, Jan 10, 2018 at 10:20:58AM +0100, Ladislav Michl wrote:
>>> On Tue, Jan 09, 2018 at 11:01:14PM +0200, Aaro Koskinen wrote:
>>>> On Tue, Jan 09, 2018 at 02:08:12PM +0100, Ladislav Michl wrote:
>>>>> Merge window is really close now and patches seems still to be untested on
>>>>> n8x0. So unless someone is going to test it soon, I'll pick used N800 on
>>>>> ebay :-/
>>>>
>>>> Today I tried to test them on Nokia N810, and I get:
>>>>
>>>> [    0.174804] omap-gpmc 6800a000.gpmc: GPMC revision 2.0
>>>> [    0.174865] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
>>>> [    0.177459] omap-gpmc 6800a000.gpmc: /ocp/gpmc@6800a000/onenand@0,0 has no 'bank-width' property
>>>> [    0.177612] omap-gpmc 6800a000.gpmc: failed to probe DT child 'onenand': -22
>>>>
>>>> With plain v4.15-rc7+ it probes fine.
>>>
>>> Thank you for testing. As stated in cover letter, you need also
>>> https://patchwork.kernel.org/patch/10043259/
>>> which can be also found in Roger's branch
>>> https://github.com/rogerq/linux/commits/for-v4.16/gpmc-omap-immutable
>>> (see previous replies in this thread and also discussion about OneNAND
>>> DT node)
>>
>> I applied it, and now get:
>>
>> [    0.174987] omap-gpmc 6800a000.gpmc: GPMC revision 2.0
>> [    0.175048] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
>> [    0.177703] omap-gpmc 6800a000.gpmc: Incompatible OneNAND node: missing compatible
>> [    0.177764] omap-gpmc 6800a000.gpmc: failed to probe DT child 'onenand': -22
> 
> Crap, I think something is wrong in my kexec. It seems to pass the DTB from an
> old kernel, although the new kernel has a new appended DTB... Need to
> investigate, sorry for noise.
> 
> A.
> 

Aaro,

You will still need to add "ti,omap2-onenand" compatible property to the n800/810 onenand node for it to work.

-- 
cheers,
-roger

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