arm: dts: mediatek: update mt7981 mmc node
1. Fix mmc clock order of mt7981 to match the clock name
2. Limit the max clock of SD to 50MHz to meet SD Card Spec 2.0
3. Increase the CLK pin driving strength to 8mA
diff --git a/arch/arm/dts/mt7981-sd-rfb.dts b/arch/arm/dts/mt7981-sd-rfb.dts
index 50ded1e..2adbc37 100644
--- a/arch/arm/dts/mt7981-sd-rfb.dts
+++ b/arch/arm/dts/mt7981-sd-rfb.dts
@@ -118,7 +118,7 @@
};
conf-clk {
pins = "SPI1_CS";
- drive-strength = <MTK_DRIVE_6mA>;
+ drive-strength = <MTK_DRIVE_8mA>;
bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
};
conf-rst {
@@ -140,10 +140,12 @@
};
&mmc0 {
+ assigned-clock-parents = <&topckgen CLK_TOP_CB_NET2_D4>,
+ <&topckgen CLK_TOP_CB_NET2_D2>;
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins_default>;
bus-width = <4>;
- max-frequency = <52000000>;
+ max-frequency = <50000000>;
cap-sd-highspeed;
r_smpl = <0>;
vmmc-supply = <®_3p3v>;