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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] The cache flush using coprocessor must be in	lib_arm/cache-cp15.c
Date: Thu, 28 May 2009 21:28:36 +0200	[thread overview]
Message-ID: <20090528192836.GA1802@game.jcrosoft.org> (raw)
In-Reply-To: <b64afca20905280151p4ed19e2bq90b7b804356fc0ed@mail.gmail.com>

On 17:51 Thu 28 May     , Kim, Heung Jun wrote:
> Hi? I'm about to suggest one more thing related to "change cpu.c under
> cpu/arm_cortexa8 dir to common code.".
> 
> asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (0));
> 
> It's the common feature all over the arm core, not only arm cortex A8.
> The common cache function is defined in the lib_arm/cache-cp15.c as you
> know. So, It's seems the better method that cache_flush() is moved to
> lib_arm/cache-cp15.c
NACK

to boot linux we are suppose to clean both cache I and DCache

the I/DCache flush is armv and arch dependant (example ARM7TDMI, armv4wt, armv3,
armv7, etc...)

so for now please let it in cpu/$(ARCH)/cpu.c

Best Regards,
J.

  parent reply	other threads:[~2009-05-28 19:28 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-28  8:51 [U-Boot] [PATCH] The cache flush using coprocessor must be in lib_arm/cache-cp15.c Kim, Heung Jun
2009-05-28 15:01 ` Dirk Behme
2009-05-28 19:28 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2009-05-29  6:15   ` Dirk Behme
2009-05-29  6:44     ` Kim, Heung Jun
2009-05-29  7:07       ` Dirk Behme
2009-05-29  7:15         ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-29  7:38           ` Dirk Behme
2009-05-29  9:24             ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-29  9:48               ` Dirk Behme

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