ARM: dts: rockchip: enable the high speed on sdio for kylin board
authorCaesar Wang <wxt@rock-chips.com>
Fri, 15 Jan 2016 13:49:52 +0000 (21:49 +0800)
committerHeiko Stuebner <heiko@sntech.de>
Sun, 24 Jan 2016 22:28:23 +0000 (23:28 +0100)
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>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
arch/arm/boot/dts/rk3036-kylin.dts

index c748d2c..905e187 100644 (file)
 
        broken-cd;
        bus-width = <4>;
+       cap-sd-highspeed;
        cap-sdio-irq;
        default-sample-phase = <90>;
        keep-power-in-suspend;
        num-slots = <1>;
        pinctrl-names = "default";
        pinctrl-0 = <&sdio_clk &sdio_cmd &sdio_bus4>;
+       sd-uhs-sdr12;
+       sd-uhs-sdr25;
+       sd-uhs-sdr50;
+       sd-uhs-sdr104;
 };
 
 &uart0 {