arm64: dts: rockchip: Add Radxa e20c board

Add board-level device tree for Radxa e20c board[1]. This basic
implementation supports boot into a kernel with only UART console.
Other features will be added later.

[1]: https://docs.radxa.com/en/e/e20c

Signed-off-by: Yao Zi <ziyao@disroot.org>
Link: https://lore.kernel.org/r/20240829092705.6241-5-ziyao@disroot.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 711af7dec8b7c9b78e938c141ded496cf74750a6..8e1025cb5d20fa2cf854a19d04c2480df28b70fa 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -76,6 +76,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rockpro64.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399pro-rock-pi-n10.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-radxa-e20c.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg-arc-d.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg-arc-s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg353p.dtb

diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
new file mode 100644 (file)
index 0000000..d2cdb63
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2020 Rockchip Electronics Co., Ltd
+ * Copyright (c) 2024 Radxa Limited
+ * Copyright (c) 2024 Yao Zi <ziyao@disroot.org>
+ */
+
+/dts-v1/;
+#include "rk3528.dtsi"
+
+/ {
+       model = "Radxa E20C";
+       compatible = "radxa,e20c", "rockchip,rk3528";
+
+       chosen {
+               stdout-path = "serial0:1500000n8";
+       };
+};
+
+&uart0 {
+       status = "okay";
+};