diff mbox

[3/3] arm/dt: Tegra: Add support-bit to SDHCI nodes

Message ID 1314731837-6985-3-git-send-email-swarren@nvidia.com (mailing list archive)
State New, archived
Headers show

Commit Message

Stephen Warren Aug. 30, 2011, 7:17 p.m. UTC
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@nvidia.com>
---
This depends on patch 1 in this series. I assume Grant or Arnd will apply
them both to whatever branch usually takes .dts updates.

 arch/arm/boot/dts/tegra-harmony.dts  |    1 +
 arch/arm/boot/dts/tegra-seaboard.dts |    4 ++++
 2 files changed, 5 insertions(+), 0 deletions(-)

Comments

Stephen Warren Aug. 31, 2011, 5:36 p.m. UTC | #1
Stephen Warren wrote at Tuesday, August 30, 2011 1:17 PM:
> 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@nvidia.com>

Grant, when applying this patch, could you possibly fix the typo in the
patch subject; s/support-bit/support-8bit/. Thanks!
diff mbox

Patch

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@c8000600 {
+		support-8bit;
+	};
 };