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Received-SPF: PermError (protection.outlook.com: domain of freescale.com used an invalid SPF mechanism) Received: from tx30smr01.am.freescale.net (192.88.168.50) by BL2FFO11FD050.mail.protection.outlook.com (10.173.161.212) with Microsoft SMTP Server (TLS) id 15.1.355.15 via Frontend Transport; Thu, 21 Jan 2016 03:30:12 +0000 Received: from b54642-OptiPlex-3020.ap.freescale.net (b54642-OptiPlex-3020.ap.freescale.net [10.192.242.47]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id u0L3U7HV011106; Wed, 20 Jan 2016 20:30:08 -0700 From: Fugang Duan To: , Subject: [PATCH] ARM: dts: imx6: enable pl310 "shared attribute override enable" bit Date: Thu, 21 Jan 2016 11:28:58 +0800 Message-ID: <1453346938-5625-1-git-send-email-b38611@freescale.com> X-Mailer: git-send-email 1.9.1 X-EOPAttributedMessage: 0 X-Microsoft-Exchange-Diagnostics: 1; BL2FFO11FD050; 1:zVY0mdcbbbjWOiO7q0X8MX3JSgVgQpYIIhkI3j2KLwY4KXRGRkWAlsXd+lY+9+qvNu0EvBY+siJ5GoklnWLr1bb7h7NReskYrCA2t4+cBxkmr4eldOeVcf/UU96viJw83vmvTHf4rguszgGGHTEpV16NRXxAPFwduuLCXj+aFBdAzkZLIb/tXTEXI/l6szx5Lcfr4ms1NtXBco3UsPwKrV8cweblTIUPjY0hwoCS450YaTZzNk1bRoPfbnd8vHuchhj1LoYzn8pJ3W5HpviFnm13zUwZu7XjUreOE+m21PxyoEeicQ5ODmBeYhKf8qXUVxuAcZuWXLvcQeN2daOGUstKEOTo2KnRjMiDKuRqFN5DuWVzVbxw7QenNTSlo0VQZ8Qhuw1CCQJIp4seI+ruA18zyfPAYF0pAXL/2mwZdaR9oNakbZ17DGIl/2r7qY+rLDyo/Tn6szUxoDr2iN4y8iX5YjFfwyzjfwHA8KWwi3U= X-Forefront-Antispam-Report: CIP:192.88.168.50; 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BY1PR0301MB1223; 5:gS6VI+aVZTL1ITp/MOw/OYNQqTRWbh9PcfjXjMIAjVboI7zF6YTHcYc5CdY1uCCSk55WrxpJHCtoHzp8o/B+2m7BjsokDHRjXAtuCbgeOQStc3DYYxXtsPavFvKSAa+LFJMItirIKW8fop2WJhdOJg==; 24:pXBYsiRNDF/eAbsWKPBA0qXaITu49yAN4Xl7rnzJAC6Aj5q7vvnl+8ij1OACp4u+QjWQtycVrl3eOgwiHJ6jk63ulvgrJ+JuhEufZ4rlQLs= X-OriginatorOrg: freescale.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jan 2016 03:30:12.2483 (UTC) X-MS-Exchange-CrossTenant-Id: 710a03f5-10f6-4d38-9ff4-a80b81da590d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=710a03f5-10f6-4d38-9ff4-a80b81da590d; Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR0301MB1223 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160120_193041_301936_D93104E8 X-CRM114-Status: GOOD ( 10.60 ) X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: b38611@freescale.com, geert+renesas@glider.be, catalin.marinas@arm.com, stefan@agner.ch, linux-arm-kernel@lists.infradead.org, l.stach@pengutronix.de Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAD_ENC_HEADER,BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The default behavior of the L220 or PL310 cache controllers with respect to the shareable attribute is to transform "normal memory non-cacheable transactions" into "cacheable no allocate" (for reads) or "write through no write allocate" (for writes). On i.MX6 series platforms, enet/audio/usb/nand DMA buffer have corruption without CMA. So set this property "arm,shared-override" in L2 dts node to enable "shared attribute override enable" bit. Signed-off-by: Fugang Duan --- arch/arm/boot/dts/imx6qdl.dtsi | 1 + arch/arm/boot/dts/imx6sl.dtsi | 1 + arch/arm/boot/dts/imx6sx.dtsi | 1 + 3 files changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index 4f6ae92..b4de39a 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -185,6 +185,7 @@ cache-level = <2>; arm,tag-latency = <4 2 3>; arm,data-latency = <4 2 3>; + arm,shared-override; }; pcie: pcie@0x01000000 { diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi index d12b250..3b80b45 100644 --- a/arch/arm/boot/dts/imx6sl.dtsi +++ b/arch/arm/boot/dts/imx6sl.dtsi @@ -113,6 +113,7 @@ cache-level = <2>; arm,tag-latency = <4 2 3>; arm,data-latency = <4 2 3>; + arm,shared-override; }; pmu { diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index a5f7602..42f8f3b 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -155,6 +155,7 @@ cache-level = <2>; arm,tag-latency = <4 2 3>; arm,data-latency = <4 2 3>; + arm,shared-override; }; dma_apbh: dma-apbh@01804000 {