From: Valentine Barshak <vbarshak@ru.mvista.com>
To: benh@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org, sr@denx.de
Subject: Re: [RFC] [PATCH] PowerPC: Workaround for the 440EP(x)/GR(x) processors identical PVR issue.
Date: Fri, 26 Oct 2007 17:16:16 +0400 [thread overview]
Message-ID: <4721E8A0.9040406@ru.mvista.com> (raw)
In-Reply-To: <1193397923.13638.5.camel@pasglop>
Benjamin Herrenschmidt wrote:
> On Fri, 2007-10-26 at 15:05 +0400, Valentine Barshak wrote:
>> It's not enough. We need to enable APU instruction broadcast for
>> EP(x)
>> (call __init_fpu_44x in arch/powerpc/kernel/cpu_setup_44x.S).
>> Or do you suggest to or-in FPU feature bit and enable APUIB later,
>> not
>> in the cpu_setup callback?
>
> It can be done at any time before the feature fixup. However, on 32
> bits, iirc, the fixup happens very early so it might not be that easy...
> just asking :-) Your patch is allright, we can always find a better way
> to do it later on.
Yes, ftr fix-up is made very early on 32 bits.
I need to workaround the identical pvr issue, since I'm going to submit
PowerPC 440GRx Rainier board support soon. It's much like Sequoia, just
no FPU and USB.
Thanks,
Valentine.
>
> Ben.
>
>
prev parent reply other threads:[~2007-10-26 13:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-25 18:16 [RFC] [PATCH] PowerPC: Workaround for the 440EP(x)/GR(x) processors identical PVR issue Valentine Barshak
2007-10-25 20:44 ` Benjamin Herrenschmidt
2007-10-26 11:05 ` Valentine Barshak
2007-10-26 11:25 ` Benjamin Herrenschmidt
2007-10-26 13:16 ` Valentine Barshak [this message]
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