arm64: dts: meson-g12b-odroid: Add initial support for Hardkernel ODROID-N2L

ODROID-N2L is a variant SBC in small form factor and some peripherals
are removed from ODROID-N2PLUS based on S922X SoC.

- On-board ethernet is removed
- On-board RTC is removed
- USB 3.0 hub is removed, so one USB 2.0 and one USB 3.0 host ports
  are available
- Huge heatsink is replaced with 40x40mm heatsink, 5V active heatsink
  is recommended or a tall passive sink is optional
- 3.5mm earjack is removed
- IR remote receiver is removed
- MIPI DSI port is added new but not yet supported

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Link: https://lore.kernel.org/r/20230122-topic-odroid-n2l-upstream-initial-v2-3-8d3fea6d403d@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

2 files changed, 126 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index 97b42e2100e0..04114e8c9992 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -15,6 +15,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-go-ultra.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2-plus.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2l.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-s922x-khadas-vim3.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-ugoos-am6.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-kii-pro.dtb
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
new file mode 100644
index 000000000000..70919f40d597
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2022 Dongjin Kim <tobetter@gmail.com>
+ */
+
+/dts-v1/;
+
+/* The Amlogic S922X Rev. C supports the same OPPs as the A311D variant */
+#include "meson-g12b-a311d.dtsi"
+#include "meson-g12b-odroid.dtsi"
+
+/ {
+	compatible = "hardkernel,odroid-n2l", "amlogic,s922x", "amlogic,g12b";
+	model = "Hardkernel ODROID-N2L";
+
+	sound {
+		compatible = "amlogic,axg-sound-card";
+		model = "ODROID-N2L";
+		audio-aux-devs = <&tdmout_b>, <&tdmin_a>, <&tdmin_b>,
+				 <&tdmin_c>, <&tdmin_lb>;
+		audio-routing = "TDMOUT_B IN 0", "FRDDR_A OUT 1",
+				"TDMOUT_B IN 1", "FRDDR_B OUT 1",
+				"TDMOUT_B IN 2", "FRDDR_C OUT 1",
+				"TDM_B Playback", "TDMOUT_B OUT",
+				"TDMIN_A IN 4", "TDM_B Loopback",
+				"TDMIN_B IN 4", "TDM_B Loopback",
+				"TDMIN_C IN 4", "TDM_B Loopback",
+				"TDMIN_LB IN 1", "TDM_B Loopback",
+				"TODDR_A IN 0", "TDMIN_A OUT",
+				"TODDR_B IN 0", "TDMIN_A OUT",
+				"TODDR_C IN 0", "TDMIN_A OUT",
+				"TODDR_A IN 1", "TDMIN_B OUT",
+				"TODDR_B IN 1", "TDMIN_B OUT",
+				"TODDR_C IN 1", "TDMIN_B OUT",
+				"TODDR_A IN 2", "TDMIN_C OUT",
+				"TODDR_B IN 2", "TDMIN_C OUT",
+				"TODDR_C IN 2", "TDMIN_C OUT",
+				"TODDR_A IN 6", "TDMIN_LB OUT",
+				"TODDR_B IN 6", "TDMIN_LB OUT",
+				"TODDR_C IN 6", "TDMIN_LB OUT";
+
+		assigned-clocks = <&clkc CLKID_MPLL2>,
+				  <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&frddr_a>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&frddr_b>;
+		};
+
+		dai-link-2 {
+			sound-dai = <&frddr_c>;
+		};
+
+		dai-link-3 {
+			sound-dai = <&toddr_a>;
+		};
+
+		dai-link-4 {
+			sound-dai = <&toddr_b>;
+		};
+
+		dai-link-5 {
+			sound-dai = <&toddr_c>;
+		};
+
+		/* 8ch hdmi interface */
+		dai-link-6 {
+			sound-dai = <&tdmif_b>;
+			dai-format = "i2s";
+			dai-tdm-slot-tx-mask-0 = <1 1>;
+			dai-tdm-slot-tx-mask-1 = <1 1>;
+			dai-tdm-slot-tx-mask-2 = <1 1>;
+			dai-tdm-slot-tx-mask-3 = <1 1>;
+			mclk-fs = <256>;
+
+			codec {
+				sound-dai = <&tohdmitx TOHDMITX_I2S_IN_B>;
+			};
+		};
+
+		/* hdmi glue */
+		dai-link-7 {
+			sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>;
+
+			codec {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&eth_phy {
+	status = "disabled";
+};
+
+&vddcpu_a {
+	regulator-min-microvolt = <680000>;
+	regulator-max-microvolt = <1040000>;
+
+	pwms = <&pwm_ab 0 1500 0>;
+};
+
+&vddcpu_b {
+	regulator-min-microvolt = <680000>;
+	regulator-max-microvolt = <1040000>;
+
+	pwms = <&pwm_AO_cd 1 1500 0>;
+};
+
+&usb2_phy0 {
+	phy-supply = <&usb_pwr_en>;
+};
+
+&usb2_phy1 {
+	phy-supply = <&usb_pwr_en>;
+};