From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/3] mtd: nand: mxs invalidate dcache before DMA read
Date: Mon, 20 Jul 2015 21:27:35 +0200 [thread overview]
Message-ID: <201507202127.35907.marex@denx.de> (raw)
In-Reply-To: <1437385222-23921-3-git-send-email-Peng.Fan@freescale.com>
On Monday, July 20, 2015 at 11:40:22 AM, Peng Fan wrote:
> Follow linux dma follow:
Nit: "flow" at the end, not "follow" ;-)
> 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
next prev parent reply other threads:[~2015-07-20 19:27 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 [this message]
2015-07-21 0:27 ` Peng Fan
2015-07-21 1:56 ` Marek Vasut
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