[PATCH 3/3] arm64: dts: rockchip: Add support for FriendlyElec NanoPC-T6 Plus

[Diederik de Haas]

The FriendlyElec NanoPC-T6 Plus is a new board in the NanoPC-T6 series.

The main differences between the NanoPC-T6 Plus and the NanoPC-T6 LTS are:
- use of LPDDR5 RAM
- addition of an M.2 B-key connector for a 4G LTE module and a companion
  NanoSIM card slot.
- 10 pin header with UART and 2x USB 2.0 host got replaced with a 3 pin
  UART header.
- different audio codec (Everest ES8389)

Add basic support for it.

Link: https://wiki.friendlyelec.com/wiki/index.php/NanoPC-T6_Plus
Link: https://wiki.friendlyelec.com/wiki/images/a/ad/NanoPC-T6_Plus_2511_SCH.pdf
Link: http://everest-semi.com/pdf/ES8389%20PB.pdf
Signed-off-by: Diederik de Haas <diederik at cknow-tech.com>
---
 arch/arm64/boot/dts/rockchip/Makefile         |  1 +
 .../dts/rockchip/rk3588-nanopc-t6-plus.dts    | 91 +++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-plus.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index b677914cd3f1..1bdebf3e30fc 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -204,6 +204,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-lubancat-5io.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-mnt-reform2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-nanopc-t6.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-nanopc-t6-lts.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-nanopc-t6-plus.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-ok3588-c.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-orangepi-5-max.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-orangepi-5-plus.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-plus.dts b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-plus.dts
new file mode 100644
index 000000000000..f23ac4bd9f16
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-plus.dts
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
+ * Copyright (c) 2023 Thomas McKahan
+ * Copyright (c) 2024 Linaro Ltd.
+ */
+
+/dts-v1/;
+
+#include "rk3588-nanopc-t6.dtsi"
+
+/ {
+	model = "FriendlyElec NanoPC-T6 Plus";
+	compatible = "friendlyarm,nanopc-t6-plus", "rockchip,rk3588";
+
+	codec_es_3v3: regulator-codec-es-3v3 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "codec_es_3v3";
+		vin-supply = <&vcc4v0_sys>;
+	};
+
+	usb2_port_5v: regulator-usb2-port-5v {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio1 RK_PA4 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&usb20_host_pwren_h_pin>;
+		pinctrl-names = "default";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-name = "usb2_port_5v";
+		vin-supply = <&vcc5v0_sys>;
+	};
+};
+
+&analog_sound {
+	compatible = "audio-graph-card";
+	hp-det-gpios = <&gpio1 RK_PC4 GPIO_ACTIVE_LOW>;
+	label = "rk3588-es8389";
+
+	dais = <&i2s0_8ch_p0>;
+	routing = "Headphones", "HPOL",
+		  "Headphones", "HPOR",
+		  "INPUT1", "Microphones Connector",
+		  "INPUT2", "Microphones Connector";
+	widgets = "Headphone", "Headphones",
+		  "Microphone", "Microphones Connector";
+};
+
+&i2c7 {
+	codec at 10 {
+		compatible = "everest,es8389";
+		reg = <0x10>;
+		assigned-clocks = <&cru I2S0_8CH_MCLKOUT_TO_IO>;
+		assigned-clock-rates = <12288000>;
+		clocks = <&cru I2S0_8CH_MCLKOUT_TO_IO>;
+		clock-names = "mclk";
+		#sound-dai-cells = <0>;
+		vdda-supply = <&codec_es_3v3>;
+		vddd-supply = <&vcc_1v8_s3>;
+
+		port {
+			es8389_p0_0: endpoint {
+				remote-endpoint = <&i2s0_8ch_p0_0>;
+			};
+		};
+	};
+};
+
+&i2s0_8ch {
+	i2s0_8ch_p0: port {
+		i2s0_8ch_p0_0: endpoint {
+			dai-format = "i2s";
+			mclk-fs = <256>;
+			remote-endpoint = <&es8389_p0_0>;
+		};
+	};
+};
+
+&pinctrl {
+	usb {
+		usb20_host_pwren_h_pin: usb20-host-pwren-h-pin {
+			rockchip,pins = <1 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&u2phy2_host {
+	phy-supply = <&usb2_port_5v>;
+};
-- 
2.55.0