linux-kernel - Re: [PATCH] powerpc: minimizing the configuration of linkstation

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Message-Id: <F78629F9-59D2-4974-8461-06B7FAC2625D@kernel.crashing.org>
Date:	Tue, 28 Apr 2009 08:16:34 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Rogério Brito <rbrito@....usp.br>
Cc:	Guennadi Liakhovetski <g.liakhovetski@....de>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH] powerpc: minimizing the configuration of linkstation_defconfig


On Apr 27, 2009, at 9:27 PM, Rogério Brito wrote:

> Hi, Kumar.
>
> On Apr 27 2009, Kumar Gala wrote:
>>
>> On Apr 24, 2009, at 5:33 PM, Rogério Brito wrote:
>>> 04. disable CONFIG_BLK_DEV_RAM.
>>
>> do we not allow booting a ramdisk?
>
> Well, do we need a block device in ram to use initramfs?
>
> (...)

I'm pretty sure we need this for old initrd style ramdisks so I'd  
prefer we leave it enabled.

>>> Dear Kumar, please, apply this one.
>>>
>>> I have another patch regarding one regression regarding MTD &
>>> PHYSMAP_COMPAT that I plan to send on top of this one.
>>
>> Ok, can we look at just specifying such info in the linkstation  
>> device
>> tree.
>
> Thanks. The MTD & PHYMAP_COMPAT are the things that have been  
> bugging me
> and my main reason to keep with the bleeding edge kernels is to get  
> things
> whey they were (regarding mtd) as in kernel 2.6.28.
>
> As I have no experience with MTD devices, I would appreciate a  
> reference to
> their workings... All that I know is that all my /dev/mtd* devices  
> are gone
> if I boot a 2.6.29* kernel.
>
> Of course, I can do a git bisect process (since the MTD subsystem  
> doesn't
> work as it did in the past even if I enable PHYMAP_COMPAT and put  
> the same
> settings there, quite unfortunately).

ok.. I killed my kurobox long ago so can't be much help here.

- k--
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