[3/5] ARM: dts: rockchip: enable the high speed on sdio for kylin board
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Message ID 1450776833-27639-4-git-send-email-wxt@rock-chips.com
State New
Headers show

Commit Message

Caesar Wang Dec. 22, 2015, 9:33 a.m. UTC
We want to the higher speed for wifi module working.

Bootup kernel log:
...
mmc_host mmc0: Bus speed (slot 0) = 37125000Hz (slot req 37500000Hz,
actual 37125000HZ div = 0)

or run 'cat /sys/kernel/debug/clk/clk_summary |grep phase -C 1' to check
Otherwise, the mmc0 will run 400khz defalult value to work.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
---

 arch/arm/boot/dts/rk3036-kylin.dts | 5 +++++
 1 file changed, 5 insertions(+)

Patch
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diff --git a/arch/arm/boot/dts/rk3036-kylin.dts b/arch/arm/boot/dts/rk3036-kylin.dts
index bb7e549..2ef38be 100644
--- a/arch/arm/boot/dts/rk3036-kylin.dts
+++ b/arch/arm/boot/dts/rk3036-kylin.dts
@@ -297,6 +297,11 @@ 
 
 	broken-cd;
 	bus-width = <4>;
+	cap-sd-highspeed;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
 	cap-sdio-irq;
 	default-sample-phase = <90>;
 	keep-power-in-suspend;