From: Maxime Ripard Date: Mon, 9 Jan 2017 14:53:59 +0000 (+0100) Subject: arm64: allwinner: a64: Increase the MMC max frequency X-Git-Tag: v4.11-rc1~86^2~2^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=22be992faea70b95bcb48e2d5efa41733fcfeab7;p=platform%2Fkernel%2Flinux-exynos.git arm64: allwinner: a64: Increase the MMC max frequency The eMMC controller seem to have a maximum frequency of 200MHz, while the regular MMC controllers are capped at 150MHz. Since older SoCs cannot go that high, we cannot change the default maximum frequency, but fortunately for us we have a property for that in the DT. This also has the side effect of allowing to use the MMC HS200 and SD SDR104 modes for the boards that support it (with either 1.2v or 1.8v IOs). Signed-off-by: Maxime Ripard Tested-by: Florian Vaussard Acked-by: Chen-Yu Tsai --- diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index acc7071..9ae4f58 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -129,6 +129,7 @@ resets = <&ccu RST_BUS_MMC0>; reset-names = "ahb"; interrupts = ; + max-frequency = <150000000>; status = "disabled"; #address-cells = <1>; #size-cells = <0>; @@ -142,6 +143,7 @@ resets = <&ccu RST_BUS_MMC1>; reset-names = "ahb"; interrupts = ; + max-frequency = <150000000>; status = "disabled"; #address-cells = <1>; #size-cells = <0>; @@ -155,6 +157,7 @@ resets = <&ccu RST_BUS_MMC2>; reset-names = "ahb"; interrupts = ; + max-frequency = <200000000>; status = "disabled"; #address-cells = <1>; #size-cells = <0>;