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From: Peng Fan <b51431@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/3] mtd: nand: mxs invalidate dcache before DMA read
Date: Tue, 21 Jul 2015 08:27:43 +0800	[thread overview]
Message-ID: <20150721002739.GA23866@shlinux2> (raw)
In-Reply-To: <201507202127.35907.marex@denx.de>

Hi Marek,
On Mon, Jul 20, 2015 at 09:27:35PM +0200, Marek Vasut wrote:
>On Monday, July 20, 2015 at 11:40:22 AM, Peng Fan wrote:
>> Follow linux dma follow:
>
>Nit: "flow" at the end, not "follow" ;-)
Thanks.
Do you have a chance to review this patch,
https://patchwork.ozlabs.org/patch/497619/ ?

>
>> Before DMA read, be sure to invalidate the cache over the address
>> range of DMA buffer to prevent cache coherency problems.
>> After DMA read, invalidate dcache again.
>> 
>> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
>
>Acked-by: Marek Vasut <marex@denx.de>
>
>Best regards,
>Marek Vasut

Thanks,
Peng
-- 

  reply	other threads:[~2015-07-21  0:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-20  9:40 [U-Boot] [PATCH resend 1/3] mtd: nand: mxs support oobsize bigger than 512 Peng Fan
2015-07-20  9:40 ` [U-Boot] [PATCH 2/3] mtd: nand: mxs check maximum ecc that platfrom supports Peng Fan
2015-07-21  1:57   ` Marek Vasut
2015-07-20  9:40 ` [U-Boot] [PATCH 3/3] mtd: nand: mxs invalidate dcache before DMA read Peng Fan
2015-07-20 19:27   ` Marek Vasut
2015-07-21  0:27     ` Peng Fan [this message]
2015-07-21  1:56       ` Marek Vasut

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