From: nicolas.pitre@linaro.org (Nicolas Pitre)
To: linux-arm-kernel@lists.infradead.org
Subject: kernel decompressor problem for ARMv7
Date: Fri, 5 Jul 2013 12:30:07 -0400 (EDT) [thread overview]
Message-ID: <alpine.LFD.2.03.1307051225240.18597@syhkavp.arg> (raw)
In-Reply-To: <20130705095757.GA13063@mudshark.cambridge.arm.com>
On Fri, 5 Jul 2013, Will Deacon wrote:
> On Fri, Jul 05, 2013 at 09:44:12AM +0100, Lin Ming wrote:
> > Hi all,
>
> Hello,
>
> > I'm porting BSP code from v2.6.36 to v3.10 kernel. It's ARMv7 processor.
>
> Which specific processor/SoC?
>
> > But decompressor doesn't work. With a lot of debug, I finally find
> > below 2 commits related.
> > Kernel uncompress OK with these commits reverted.
> >
> > dbece45: ARM: 7501/1: decompressor: reset ttbcr for VMSA ARMv7 cores
> > (Introduced in v3.6-rc6)
> >
> > 5010192: ARM: 7583/1: decompressor: Enable unaligned memory access for
> > v6 and above
> > (Introduced in v3.7-rc8)
> >
> > Any hint to fix it?
>
> There's not really enough information to go on here. What specifically
> fails? Also, do you have to revert *both* of the above changes to get things
> working again?
Also, what is the bootloader used here?
Does the bootloader call the kernel with the MMU off as documented in
Documentation/arm/Booting?
Nicolas
next prev parent reply other threads:[~2013-07-05 16:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-05 8:44 kernel decompressor problem for ARMv7 Lin Ming
2013-07-05 9:57 ` Will Deacon
2013-07-05 16:30 ` Nicolas Pitre [this message]
2013-07-05 16:58 ` Lin Ming
2013-07-08 2:27 ` Lin Ming
2013-07-09 1:09 ` Lin Ming
2013-07-09 7:39 ` Nicolas Pitre
2013-07-09 7:53 ` Lin Ming
2013-07-09 8:05 ` Will Deacon
2013-07-09 8:21 ` Lin Ming
2013-07-05 16:52 ` Lin Ming
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