board: rockchip: Add minimal generic RK3528 board
Add a minimal generic RK3528 board that only have eMMC and SD-card
enabled. This defconfig can be used to boot from eMMC or SD-card on most
RK3528 boards that follow reference board design.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3528-generic-u-boot.dtsi b/arch/arm/dts/rk3528-generic-u-boot.dtsi
new file mode 100644
index 0000000..cc830b5
--- /dev/null
+++ b/arch/arm/dts/rk3528-generic-u-boot.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk3528-u-boot.dtsi"
+
+&sdmmc {
+ bus-width = <4>;
+ cap-sd-highspeed;
+ disable-wp;
+ no-mmc;
+ no-sdio;
+ status = "okay";
+};
diff --git a/arch/arm/dts/rk3528-generic.dts b/arch/arm/dts/rk3528-generic.dts
new file mode 100644
index 0000000..792d3e0
--- /dev/null
+++ b/arch/arm/dts/rk3528-generic.dts
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Minimal generic DT for RK3528 with eMMC enabled
+ */
+
+/dts-v1/;
+#include "rk3528.dtsi"
+
+/ {
+ model = "Generic RK3528";
+ compatible = "rockchip,rk3528";
+
+ chosen {
+ stdout-path = "serial0:1500000n8";
+ };
+};
+
+&sdhci {
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ no-sd;
+ no-sdio;
+ non-removable;
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0m0_xfer>;
+ status = "okay";
+};