dts: rk3308: add sdmmc node to support sdmmc

Change-Id: Iebf8b4c800ceaea95530c553955e727e2d76345f
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>

arch/arm/dts/rk3308-evb.dts

@@ -319,6 +319,20 @@
 	status = "disabled";
 };
 
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	supports-sd;
+	card-detect-delay = <800>;
+	ignore-pm-notify;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	status = "disabled";
+};
+
 &u2phy {
 	status = "okay";
 };

arch/arm/dts/rk3308-u-boot.dtsi

@@ -8,7 +8,7 @@
 
 	chosen {
 		stdout-path = &uart2;
-		u-boot,spl-boot-order = &sfc, &nandc, &emmc;
+		u-boot,spl-boot-order = &sdmmc, &sfc, &nandc, &emmc;
 	};
 };
 
@@ -43,6 +43,42 @@
 	};
 };
 
+&pinctrl {
+	u-boot,dm-pre-reloc;
+};
+
+&pcfg_pull_none_4ma {
+	u-boot,dm-spl;
+};
+
+&pcfg_pull_up_4ma {
+	u-boot,dm-spl;
+};
+
+&sdmmc {
+	u-boot,dm-pre-reloc;
+};
+
+&sdmmc_pin {
+	u-boot,dm-spl;
+};
+
+&sdmmc_clk {
+	u-boot,dm-spl;
+};
+
+&sdmmc_cmd {
+	u-boot,dm-spl;
+};
+
+&sdmmc_bus4 {
+	u-boot,dm-spl;
+};
+
+&sdmmc_pwren {
+	u-boot,dm-spl;
+};
+
 &sfc {
 	u-boot,dm-pre-reloc;
 	status = "okay";

arch/arm/dts/rk3308.dtsi

@@ -23,6 +23,8 @@
 		serial2 = &uart2;
 		serial3 = &uart3;
 		serial4 = &uart4;
+		mmc0 = &emmc;
+		mmc1 = &sdmmc;
 	};
 
 	cpus {