From: Tom Rix <tom@bumblecow.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2] ARM1136: Fix cache_flush() error and correct cpu_init_crit() comments
Date: Tue, 01 Jun 2010 09:38:56 -0500 [thread overview]
Message-ID: <4C051B80.9070401@bumblecow.com> (raw)
In-Reply-To: <1273587336-17783-1-git-send-email-gdavis@mvista.com>
gdavis at mvista.com wrote:
> From: George G. Davis <gdavis@mvista.com>
>
> The ARM1136 cache_flush() function uses the "mcr p15, 0, rn, c7, c7, 0"
> instruction which means "Invalidate Both Caches" when in fact the intent
> is to clean and invalidate all caches. So add an "mcr p15, 0, %0, c7,
> c10, 0" instruction to "Clean Entire Data Cache" prior to the "Invalidate
> Both Caches" instruction to insure that memory is consistent with any
> dirty cache lines.
>
> Also fix a couple of "flush v*" comments in ARM1136 cpu_init_crit() so
> that they correctly describe the actual ARM1136 CP15 C7 Cache Operations
> used.
>
> Signed-off-by: George G. Davis <gdavis@mvista.com>
Applied to arm/master
Thanks
Tom
next prev parent reply other threads:[~2010-06-01 14:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-05 21:09 [U-Boot] [PATCH] ARM1136: Fix cache_flush() error and correct cpu_init_crit() comments George G. Davis
2010-05-10 14:02 ` Dirk Behme
2010-05-11 3:33 ` George G. Davis
2010-05-11 8:56 ` Wolfgang Denk
2010-05-11 13:13 ` George G. Davis
2010-05-11 14:15 ` [U-Boot] [PATCH v2] " gdavis at mvista.com
2010-05-13 9:41 ` Dirk Behme
2010-05-28 15:12 ` George G. Davis
2010-06-01 14:38 ` Tom Rix [this message]
2010-06-02 3:02 ` George G. Davis
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