riscv: dts: sophgo: add device tree for LicheeRV Nano
Import a slightly modified version of the LicheeRV Nano and SG2002
device trees from the Linux Kernel. The current supported IPs are UART,
MMC, Timer, PLIC and CLINT.
Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
diff --git a/arch/riscv/dts/sg2002-licheerv-nano-b.dts b/arch/riscv/dts/sg2002-licheerv-nano-b.dts
new file mode 100644
index 0000000..9871a75
--- /dev/null
+++ b/arch/riscv/dts/sg2002-licheerv-nano-b.dts
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2024 Thomas Bonnefille <thomas.bonnefille@bootlin.com>
+ */
+
+/dts-v1/;
+
+#include "sg2002.dtsi"
+
+/ {
+ model = "LicheeRV Nano B";
+ compatible = "sipeed,licheerv-nano-b", "sipeed,licheerv-nano", "sophgo,sg2002";
+
+ aliases {
+ gpio0 = &gpio0;
+ gpio1 = &gpio1;
+ gpio2 = &gpio2;
+ gpio3 = &gpio3;
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ serial3 = &uart3;
+ serial4 = &uart4;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&osc {
+ clock-frequency = <25000000>;
+};
+
+&sdhci0 {
+ status = "okay";
+ bus-width = <4>;
+ no-1-8-v;
+ no-mmc;
+ no-sdio;
+};
+
+&uart0 {
+ status = "okay";
+};