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@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts
index e581866..0e225b8 100644 (file)
--- 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 (file)
--- 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;
+       };
 };