[PATCH 12/12] ARM: dts: rockchip: Add Luckfox Pico Mini B

[Simon Glass <sjg@chromium.org>]

Add the devicetree for the Luckfox Pico Mini B, a small board using
the Rockchip RV1103 with 64MB of in-package DDR2, a 128MB Winbond SPI
NAND and a microSD slot. The console is on UART2.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 arch/arm/boot/dts/rockchip/Makefile           |  1 +
 .../rockchip/rv1103-luckfox-pico-mini-b.dts   | 93 +++++++++++++++++++
 2 files changed, 94 insertions(+)
 create mode 100644 arch/arm/boot/dts/rockchip/rv1103-luckfox-pico-mini-b.dts

diff --git a/arch/arm/boot/dts/rockchip/Makefile b/arch/arm/boot/dts/rockchip/Makefile
index d0154fd7ff24..62a2ed96dd9b 100644
--- a/arch/arm/boot/dts/rockchip/Makefile
+++ b/arch/arm/boot/dts/rockchip/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_ROCKCHIP) += \
+	rv1103-luckfox-pico-mini-b.dtb \
 	rv1103b-omega4-evb.dtb \
 	rv1108-elgin-r1.dtb \
 	rv1108-evb.dtb \
diff --git a/arch/arm/boot/dts/rockchip/rv1103-luckfox-pico-mini-b.dts b/arch/arm/boot/dts/rockchip/rv1103-luckfox-pico-mini-b.dts
new file mode 100644
index 000000000000..287dbf1307e8
--- /dev/null
+++ b/arch/arm/boot/dts/rockchip/rv1103-luckfox-pico-mini-b.dts
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Luckfox Electronics Co., Ltd
+ */
+
+/dts-v1/;
+
+#include "rv1103.dtsi"
+
+/ {
+	model = "Luckfox Pico Mini B";
+	compatible = "luckfox,pico-mini-b", "rockchip,rv1103";
+
+	aliases {
+		mmc0 = &sdmmc;
+		serial2 = &uart2;
+	};
+
+	chosen {
+		stdout-path = "serial2:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x04000000>;
+	};
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	disable-wp;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_det &sdmmc0_bus4>;
+	status = "okay";
+};
+
+&sfc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&fspi_pins &fspi_cs0>;
+	status = "okay";
+
+	spi_nand: flash@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		spi-max-frequency = <75000000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "env";
+				reg = <0x00000000 0x00040000>;
+			};
+
+			partition@40000 {
+				label = "idblock";
+				reg = <0x00040000 0x00100000>;
+				read-only;
+			};
+
+			partition@140000 {
+				label = "uboot";
+				reg = <0x00140000 0x00100000>;
+				read-only;
+			};
+
+			partition@240000 {
+				label = "boot";
+				reg = <0x00240000 0x00800000>;
+			};
+
+			partition@a40000 {
+				label = "ubi";
+				reg = <0x00a40000 0x075c0000>;
+			};
+		};
+	};
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2m1_xfer>;
+	status = "okay";
+};
+
+&wdt {
+	status = "okay";
+};
-- 
2.43.0