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From: Heiko Schocher <hs@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v4] ARM926ejs: Add routines to invalidate	D-Cache
Date: Wed, 10 Aug 2011 07:56:37 +0200	[thread overview]
Message-ID: <4E421D95.6020107@denx.de> (raw)
In-Reply-To: <201108100752.12813.marek.vasut@gmail.com>

Hello Hong,

Marek Vasut wrote:
> On Wednesday, August 10, 2011 04:49:25 AM Hong Xu wrote:
>> After DMA operation, we need to maintain D-Cache coherency.
>> So that the DCache must be invalidated (hence CPU will fetch
>> data written by DMA controller from RAM).
>>
>> Tested on AT91SAM9261EK with Peripheral DMA controller.
> 
> Hi Hong,
> 
> one more thing, not that I want to disappoint you.
> 
> Try to take a look at arch/arm/cpu/armv7/cache_v7.c
> 
> Maybe we should do the same for arm926ejs -- have arch/arm/cpu/arm926ejs/cache.c 
> -- containing arm926ejs specific cache management functions. That way, 
> arch/arm/lib/cache.c won't become mess.
> 
> What do you think ?

Full Ack, this should be moved like on armv7 to
arch/arm/cpu/arm926ejs/cache.c

Thanks!

bye,
Heiko
-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

  reply	other threads:[~2011-08-10  5:56 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-10  2:49 [U-Boot] [PATCH v4] ARM926ejs: Add routines to invalidate D-Cache Hong Xu
2011-08-10  5:52 ` Marek Vasut
2011-08-10  5:56   ` Heiko Schocher [this message]
2011-08-10  6:17   ` Hong Xu
2011-08-10  6:36     ` Albert ARIBAUD
2011-08-10  6:41       ` Hong Xu
2011-08-10  7:13         ` Marek Vasut
2011-08-11  7:02       ` Aneesh V
2011-08-11  7:30         ` Marek Vasut
2011-08-12  9:57           ` Albert ARIBAUD
2011-08-12 10:04             ` Marek Vasut

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