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-rw-r--r--arch/arm/boot/dts/rk3288-evb.dtsi30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 3e067dd65d0c..6194d673e80b 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -155,6 +155,15 @@
};
&pinctrl {
+ pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
+ drive-strength = <8>;
+ };
+
+ pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
+ bias-pull-up;
+ drive-strength = <8>;
+ };
+
backlight {
bl_en: bl-en {
rockchip,pins = <7 2 RK_FUNC_GPIO &pcfg_pull_none>;
@@ -173,6 +182,27 @@
};
};
+ sdmmc {
+ /*
+ * Default drive strength isn't enough to achieve even
+ * high-speed mode on EVB board so bump up to 8ma.
+ */
+ sdmmc_bus4: sdmmc-bus4 {
+ rockchip,pins = <6 16 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
+ <6 17 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
+ <6 18 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
+ <6 19 RK_FUNC_1 &pcfg_pull_up_drv_8ma>;
+ };
+
+ sdmmc_clk: sdmmc-clk {
+ rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
+ };
+
+ sdmmc_cmd: sdmmc-cmd {
+ rockchip,pins = <6 21 RK_FUNC_1 &pcfg_pull_up_drv_8ma>;
+ };
+ };
+
usb {
host_vbus_drv: host-vbus-drv {
rockchip,pins = <0 14 RK_FUNC_GPIO &pcfg_pull_none>;