From: t.figa@samsung•com (Tomasz Figa)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 0/5] Handle non-secure L2C initialization on Exynos4
Date: Fri, 13 Jun 2014 16:59:55 +0200 [thread overview]
Message-ID: <539B11EB.6010304@samsung.com> (raw)
In-Reply-To: <CAD8Lp46MbKZrCAMp+9T9LbWTB4uHRDdivhtjoQbkTyBbK48EgQ@mail.gmail.com>
Hi Daniel,
I have attached, three patches which make the kernel boot fine with L2
cache enabled on ODROID-U3. Could you test them on your setup to verify
that they indeed fix the issue?
Best regards,
Tomasz
On 12.06.2014 15:38, Daniel Drake wrote:
> Hi Tomasz,
>
> Thanks for working on this!
>
> I have just tried this, against Linus master
> 64b2d1fbbfda07765dae3f601862796a61b2c451.
> Added patch "ARM: dts: Initial ODROID U2 support" and booted on
> ODROID-U2. I believe this board has the security enabled.
>
> Unfortunately, it hangs during early boot. With earlyprintk the last
> messages seen are:
>
> L2C: platform modifies aux control register: 0x02070000 -> 0x3e470001
> L2C: platform provided aux values permit register corruption.
> L2C: DT/platform modifies aux control register: 0x02070000 -> 0x3e470001
> L2C-310 enabling early BRESP for Cortex-A9
> L2C-310: enabling full line of zeros but not enabled in Cortex-A9
> L2C-310 ID prefetch enabled, offset 1 lines
> L2C-310 dynamic clock gating enabled, standby mode enabled
> L2C-310 cache controller enabled, 16 ways, 1024 kB
> L2C-310: CACHE_ID 0x4100c4c8, AUX_CTRL 0x7e470001
>
> I then tried to go back to the earlier patch "ARM: EXYNOS: Add secure
> firmware support for l2x0 init" (attached, needed a rebase) but that
> one also now hangs at:
>
> L2C: platform modifies aux control register: 0x02070000 -> 0x3e470001
>
> It did work on 3.14 though. Looking at the changelogs, many changes
> have been made to l2x0 recently. Can you confirm that you have tested
> your patches against a kernel with all of Russell King's recent
> changes?
>
> Thanks
> Daniel
>
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next prev parent reply other threads:[~2014-06-13 14:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAD8Lp46MbKZrCAMp+9T9LbWTB4uHRDdivhtjoQbkTyBbK48EgQ@mail.gmail.com>
2014-06-12 14:13 ` [PATCH 0/5] Handle non-secure L2C initialization on Exynos4 Tomasz Figa
2014-06-12 16:20 ` Russell King - ARM Linux
2014-06-12 16:47 ` Tomasz Figa
2014-06-13 14:59 ` Tomasz Figa [this message]
2014-06-17 11:45 ` Daniel Drake
2014-06-11 15:30 Tomasz Figa
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