[PATCH 2/2] ARM: dts: rockchip: enable sdmmc for rk1108-evb
From: heiko@sntech.de (Heiko Stuebner)
Date: 2016-11-16 12:29:02
Also in:
linux-gpio, linux-rockchip, lkml
Am Sonntag, 13. November 2016, 16:13:19 CET schrieb Jacob Chen:
quoted hunk ↗ jump to hunk
From: Jacob Chen <redacted> This patch add sdmmc support for rk1108-evb, now I can load the rootfs from sdmmc. Signed-off-by: Jacob Chen <redacted> --- arch/arm/boot/dts/rk1108-evb.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)diff --git a/arch/arm/boot/dts/rk1108-evb.dtsb/arch/arm/boot/dts/rk1108-evb.dts index 3956cff..cea26e5 100644--- a/arch/arm/boot/dts/rk1108-evb.dts +++ b/arch/arm/boot/dts/rk1108-evb.dts@@ -56,6 +56,18 @@ }; }; +&sdmmc { + bus-width = <4>; + cap-mmc-highspeed; + cap-sd-highspeed; + card-detect-delay = <200>; + disable-wp; + num-slots = <1>; + pinctrl-names = "default"; + pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>; + status = "okay"; +}; + &uart0 { status = "okay"; };@@ -67,3 +79,12 @@ &uart2 { status = "okay"; }; + +&pinctrl { + + sdmmc { + sdmmc_pwr: sdmmc-pwr { + rockchip,pins = <3 RK_PB7 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>; + };
the above is unsued, and in general please use a fixed regulator as vmmc, as all other Rockchip boards do already, so that the mmc core can handle it itself. Thanks Heiko