linux-kernel - [PATCH REPOST 2/2] arm/dt: Tegra: Add support-8bit to SDHCI nodes

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Message-Id: <1316537186-26753-2-git-send-email-swarren@nvidia.com>
Date:	Tue, 20 Sep 2011 10:46:26 -0600
From:	Stephen Warren <swarren@...dia.com>
To:	Grant Likely <grant.likely@...retlab.ca>,
	Arnd Bergmann <arnd@...db.de>, nicolas.pitre@...aro.org
Cc:	Olof Johansson <olof@...om.net>, Shawn Guo <shawn.guo@...aro.org>,
	Chris Ball <cjb@...top.org>, linux-mmc@...r.kernel.org,
	linux-tegra@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Stephen Warren <swarren@...dia.com>
Subject: [PATCH REPOST 2/2] arm/dt: Tegra: Add support-8bit to SDHCI nodes

For Seaboard's internal eMMC, this makes the difference between a
5.5MB/s and 10.2MB/s transfer rate. On Harmony, there wasn't any
measurable difference on my cheap/slow ~2MB/s card.

Signed-off-by: Stephen Warren <swarren@...dia.com>
---
 arch/arm/boot/dts/tegra-harmony.dts  |    1 +
 arch/arm/boot/dts/tegra-seaboard.dts |    4 ++++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts
index e581866..0e225b8 100644
--- a/arch/arm/boot/dts/tegra-harmony.dts
+++ b/arch/arm/boot/dts/tegra-harmony.dts
@@ -66,5 +66,6 @@
 		cd-gpios = <&gpio 58 0>; /* gpio PH2 */
 		wp-gpios = <&gpio 59 0>; /* gpio PH3 */
 		power-gpios = <&gpio 70 0>; /* gpio PI6 */
+		support-8bit;
 	};
 };
diff --git a/arch/arm/boot/dts/tegra-seaboard.dts b/arch/arm/boot/dts/tegra-seaboard.dts
index 64cedca..a72299b 100644
--- a/arch/arm/boot/dts/tegra-seaboard.dts
+++ b/arch/arm/boot/dts/tegra-seaboard.dts
@@ -25,4 +25,8 @@
 		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
 		power-gpios = <&gpio 70 0>; /* gpio PI6 */
 	};
+
+	sdhci@...00600 {
+		support-8bit;
+	};
 };
-- 
1.7.0.4

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