rockchip: rk3288-firefly: sync sdmmc pinctrl from mainline
The rk3288-firefly board have different setting for sdmmc
io, sync then from kernel mainline:
6fbc7275c7a9 Linux 5.2-rc7
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3288-firefly-u-boot.dtsi b/arch/arm/dts/rk3288-firefly-u-boot.dtsi
index 2efb309..8b9c383 100644
--- a/arch/arm/dts/rk3288-firefly-u-boot.dtsi
+++ b/arch/arm/dts/rk3288-firefly-u-boot.dtsi
@@ -29,11 +29,7 @@
u-boot,dm-pre-reloc;
};
-&pcfg_pull_none_drv_8ma {
- u-boot,dm-spl;
-};
-
-&pcfg_pull_up_drv_8ma {
+&pcfg_pull_up_drv_12ma {
u-boot,dm-spl;
};
diff --git a/arch/arm/dts/rk3288-firefly.dtsi b/arch/arm/dts/rk3288-firefly.dtsi
index 2239ab9..b7f279f 100644
--- a/arch/arm/dts/rk3288-firefly.dtsi
+++ b/arch/arm/dts/rk3288-firefly.dtsi
@@ -320,6 +320,11 @@
output-low;
};
+ pcfg_pull_up_drv_12ma: pcfg-pull-up-drv-12ma {
+ bias-pull-up;
+ drive-strength = <12>;
+ };
+
act8846 {
pwr_hold: pwr-hold {
rockchip,pins = <0 1 RK_FUNC_GPIO &pcfg_output_high>;
@@ -363,8 +368,27 @@
};
sdmmc {
+ /*
+ * Default drive strength isn't enough to achieve even
+ * high-speed mode on firefly board so bump up to 12ma.
+ */
+ sdmmc_bus4: sdmmc-bus4 {
+ rockchip,pins = <6 RK_PC0 1 &pcfg_pull_up_drv_12ma>,
+ <6 RK_PC1 1 &pcfg_pull_up_drv_12ma>,
+ <6 RK_PC2 1 &pcfg_pull_up_drv_12ma>,
+ <6 RK_PC3 1 &pcfg_pull_up_drv_12ma>;
+ };
+
+ sdmmc_clk: sdmmc-clk {
+ rockchip,pins = <6 RK_PC4 1 &pcfg_pull_none_12ma>;
+ };
+
+ sdmmc_cmd: sdmmc-cmd {
+ rockchip,pins = <6 RK_PC5 1 &pcfg_pull_up_drv_12ma>;
+ };
+
sdmmc_pwr: sdmmc-pwr {
- rockchip,pins = <7 11 RK_FUNC_GPIO &pcfg_pull_none>;
+ rockchip,pins = <7 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
};
};