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>

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 e5818668d091..0e225b86b652 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 64cedca6fc79..a72299b8e668 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;
+        };
 };