commit 9bd954ab8a8513913bf74be06ba80a79754c7820
author Tianling Shen <cnsztl@gmail.com> Sat May 20 19:20:50 2023 +0800
committer Kever Yang <kever.yang@rock-chips.com> Fri Jul 28 18:45:02 2023 +0800
tree feecda5218f6e01473ff0efb01cd6766bdbde5bb
parent 69e16c7b1cdd03907b86bb31abee24f5d4836400

rockchip: rk3328: Add support for Orange Pi R1 Plus LTS

The OrangePi R1 Plus LTS is a minor variant of OrangePi R1 Plus with
the on-board NIC chip changed from rtl8211e to yt8531c, and RAM type
changed from DDR4 to LPDDR3.

The device tree is taken from kernel v6.4-rc1.

Signed-off-by: Tianling Shen <cnsztl@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

arch/arm/dts/rk3328-orangepi-r1-plus-lts.dts

diff --git a/arch/arm/dts/rk3328-orangepi-r1-plus-lts.dts b/arch/arm/dts/rk3328-orangepi-r1-plus-lts.dts
new file mode 100644
index 0000000..5d7d567
--- /dev/null
+++ b/arch/arm/dts/rk3328-orangepi-r1-plus-lts.dts
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) 2016 Xunlong Software. Co., Ltd.
+ * (http://www.orangepi.org)
+ *
+ * Copyright (c) 2021-2023 Tianling Shen <cnsztl@gmail.com>
+ */
+
+/dts-v1/;
+#include "rk3328-orangepi-r1-plus.dts"
+
+/ {
+	model = "Xunlong Orange Pi R1 Plus LTS";
+	compatible = "xunlong,orangepi-r1-plus-lts", "rockchip,rk3328";
+};
+
+&gmac2io {
+	phy-handle = <&yt8531c>;
+	tx_delay = <0x19>;
+	rx_delay = <0x05>;
+
+	mdio {
+		/delete-node/ ethernet-phy@1;
+
+		yt8531c: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+
+			motorcomm,clk-out-frequency-hz = <125000000>;
+			motorcomm,keep-pll-enabled;
+			motorcomm,auto-sleep-disabled;
+
+			pinctrl-0 = <&eth_phy_reset_pin>;
+			pinctrl-names = "default";
+			reset-assert-us = <15000>;
+			reset-deassert-us = <50000>;
+			reset-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
+		};
+	};
+};