The patch set SD clock frequency to maximum possible to SD-card (50MHz). This change actual clock frequency from 32MHz to 48MHz (speedup 1.5X). Banner line before patch: 'mmc_host mmc0: Bus speed (slot 0) = 32000000Hz (slot req 50000000Hz, actual 32000000HZ div = 0)'. Banner line after patch: 'mmc_host mmc0: Bus speed (slot 0) = 96000000Hz (slot req 50000000Hz, actual 48000000HZ div = 1)' Signed-off-by: Alexander Kochetkov <al.kochet@xxxxxxxxx> --- arch/arm/boot/dts/rk3188-radxarock.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/rk3188-radxarock.dts b/arch/arm/boot/dts/rk3188-radxarock.dts index 1da46d1..5b7daa4 100644 --- a/arch/arm/boot/dts/rk3188-radxarock.dts +++ b/arch/arm/boot/dts/rk3188-radxarock.dts @@ -302,6 +302,7 @@ pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>; vmmc-supply = <&vcc_sd0>; + clock-frequency = <50000000>; bus-width = <4>; cap-mmc-highspeed; cap-sd-highspeed; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
