DT: add device tree for Tanix X4 2G/4G with 100M eth

arch/arm64/boot/dts/amlogic/Makefile

@@ -99,6 +99,8 @@ dtb-y += sc2_s905x4_sei_smb_280_id6.dtb
 dtb-y += sc2_s905x4_sei_smb_280_id7.dtb
 dtb-y += sc2_s905x4_ugoos_am7.dtb
 dtb-y += sc2_s905x4_ugoos_x4.dtb
+dtb-y += sc2_s905x4_tanix_x4_2g.dtb
+dtb-y += sc2_s905x4_tanix_x4_4g.dtb
 dtb-y += sc2_s905x4_x96_x4_2g.dtb
 dtb-y += sc2_s905x4_x96_x4_2g_1gbit.dtb
 dtb-y += sc2_s905x4_x96_x4_4g.dtb

arch/arm64/boot/dts/amlogic/sc2_s905x4_tanix_x4_2g.dts

@@ -0,0 +1,45 @@
+#include "sc2_s905x4_2g.dts"
+
+/ {
+	model = "Tanix X4 2G";
+	amlogic-dt-id = "sc2_s905x4_ah212-2g";
+	coreelec-dt-id = "sc2_s905x4_tanix_x4_2g";
+
+	memory@00000000 {
+		linux,usable-memory = <0x0 0x000000 0x0 0x80000000>;
+	};
+};
+
+&ir_wakeup_key {
+	key_num = <1>;
+	wakeup_key = <0xb24d4040 IR_NORMAL KEY_POWER>;
+};
+
+/* The Tanix X4 android dump uses 200 MHz for the SD card interface */
+&sd_emmc_b {
+	max-frequency = <200000000>;
+};
+
+&periphs_pinctrl {
+	spdifout: spdifout {
+		mux {
+			groups = "spdif_out_d";
+			function = "spdif_out";
+		};
+	};
+
+	spdifout_a_mute: spdifout_a_mute {
+		mux {
+			groups = "GPIOD_10";
+			function = "gpio_periphs";
+			output-low;
+		};
+	};
+};
+
+&amhdmitx {
+	vend_data {
+		vendor_name = "Tanix";
+		product_desc = "X4";
+	};
+};

arch/arm64/boot/dts/amlogic/sc2_s905x4_tanix_x4_4g.dts

@@ -0,0 +1,15 @@
+#include "sc2_s905x4_tanix_x4_2g.dts"
+
+/ {
+	model = "Tanix X4 4G";
+	amlogic-dt-id = "sc2_s905x4_ah212-4g";
+	coreelec-dt-id = "sc2_s905x4_tanix_x4_4g";
+
+	memory@00000000 {
+		linux,usable-memory = <0x0 0x000000 0x0 0xf0000000>;
+	};
+};
+
+&drm_vpu {
+	logo_addr = "0x7f800000";
+};