arm: dts: artik711s: optimize shift of eMMC

This patch modifies drive_shift and sample_shift of eMMC.
The drive_shift can have from 0 to 3 values. The meanings of the
values are degree of the phase shifted clock.

0: 0 degree phase shifted clock
1: 90 degree phase shifted clock
2: 180 degree phase shifted clock
3: 270 degree phase shifted clock

In the same as drive_shift, the sample_shift can have values as 0
to 3. The meanings of values are also the same.

There are sometimes fastboot fail with some targets, and this patch
solves it.

Change-Id: I15164f8473fb52f5cc6aecc62602b016c0fcc117
Signed-off-by: Sowon Na <sowon.na@samsung.com>

diff --git a/arch/arm/dts/s5p6818-artik711s-raptor.dts b/arch/arm/dts/s5p6818-artik711s-raptor.dts
index a923ade97801cc9518df1611c011c1750907d0f9..2dccd9734ee043922b22500bc05c928b11fee8e9 100644 (file)
--- a/arch/arm/dts/s5p6818-artik711s-raptor.dts
+++ b/arch/arm/dts/s5p6818-artik711s-raptor.dts
@@ -162,9 +162,9 @@
 &mmc2 {
        frequency = <100000000>;
        nexell,drive_dly = <0x0>;
-       nexell,drive_shift = <0x01>;
+       nexell,drive_shift = <0x00>;
        nexell,sample_dly = <0x00>;
-       nexell,sample_shift = <0x00>;
+       nexell,sample_shift = <0x01>;
        nexell,bus-width = <4>;
        index = <0>;
        status = "okay";