Am Sonntag, 13. November 2016, 16:13:19 CET schrieb Jacob Chen: > From: Jacob Chen <[email protected]> > > This patch add sdmmc support for rk1108-evb, now I can load the rootfs > from sdmmc. > > Signed-off-by: Jacob Chen <[email protected]> > --- > arch/arm/boot/dts/rk1108-evb.dts | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/arch/arm/boot/dts/rk1108-evb.dts > b/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
