From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux.amoon@gmail.com (Anand Moon) Date: Thu, 20 Sep 2018 17:58:25 +0000 Subject: [PATCHv3 6/7] ARM: dts: exynos5422: update maximum frequency for emmc to 200MHz In-Reply-To: <20180920175826.1284-1-linux.amoon@gmail.com> References: <20180920175826.1284-1-linux.amoon@gmail.com> Message-ID: <20180920175826.1284-7-linux.amoon@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org set the max-frequency to 200MHz for optimal performace of eMMC. Signed-off-by: Anand Moon --- This patch is new to this series. MMC root at odroid:~# sudo cat /sys/kernel/debug/mmc0/ios clock: 200000000 Hz actual clock: 200000000 Hz vdd: 7 (1.65 - 1.95 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 3 (8 bits) timing spec: 10 (mmc HS400) signal voltage: 1 (1.80 V) driver type: 0 (driver type B) --- arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi index 96e281c0a118..5748f840becc 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi @@ -386,6 +386,7 @@ cap-mmc-highspeed; mmc-hs200-1_8v; mmc-hs400-1_8v; + max-frequency = <200000000>; vmmc-supply = <&ldo18_reg>; vqmmc-supply = <&ldo3_reg>; }; -- 2.17.1