From mboxrd@z Thu Jan 1 00:00:00 1970 From: wxt@rock-chips.com (Caesar Wang) Date: Tue, 22 Dec 2015 17:33:51 +0800 Subject: [PATCH 3/5] ARM: dts: rockchip: enable the high speed on sdio for kylin board In-Reply-To: <1450776833-27639-1-git-send-email-wxt@rock-chips.com> References: <1450776833-27639-1-git-send-email-wxt@rock-chips.com> Message-ID: <1450776833-27639-4-git-send-email-wxt@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- arch/arm/boot/dts/rk3036-kylin.dts | 5 +++++ 1 file changed, 5 insertions(+) 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; -- 1.9.1