From: murzin.v@gmail.com (Vladimir Murzin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: errata: Fix the workaround for erratum 764369
Date: Tue, 1 Apr 2014 08:32:05 +0000 (UTC) [thread overview]
Message-ID: <loom.20140401T103102-49@post.gmane.org> (raw)
In-Reply-To: 1396308564-4613-1-git-send-email-nitin.garg@freescale.com
Nitin Garg <nitin.garg <at> freescale.com> writes:
> #ifdef CONFIG_ARM_ERRATA_764369
> /* Cortex-A9 only */
> if ((read_cpuid_id() & 0xff0ffff0) == 0x410fc090) {
> - scu_ctrl = readl_relaxed(scu_base + 0x30);
> - if (!(scu_ctrl & 1))
> - writel_relaxed(scu_ctrl | 0x1, scu_base + 0x30);
> + writel_relaxed(0x1, scu_base + 0x30);
> }
> #endif
>
Hmmm.. SCU diagnostic control register is undocumented one, afaics. Anyway,
writel_* is supposed to write u32, so writing plain 0x1 sets-off other
settings, doesn't it?
Vladimir
next prev parent reply other threads:[~2014-04-01 8:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-31 23:29 [PATCH] ARM: errata: Fix the workaround for erratum 764369 Nitin Garg
2014-04-01 8:32 ` Vladimir Murzin [this message]
2014-04-14 13:29 ` Will Deacon
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