add ax88772C AX88772C_eeprom_tools

hc

2024-05-10 61598093bbdd283a7edc367d900f223070ead8d2

 kernel/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
..
..
@@ -1,7 +1,7 @@
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 // SPDX-License-Identifier: GPL-2.0
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 /dts-v1/;
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 #include "bcm2837.dtsi"
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-#include "bcm2835-rpi.dtsi"
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+#include "bcm2836-rpi.dtsi"
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 #include "bcm283x-rpi-smsc9514.dtsi"
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 #include "bcm283x-rpi-usb-host.dtsi"
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..
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@@ -14,12 +14,13 @@
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 		stdout-path = "serial1:115200n8";
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 	};
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-	memory {
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+	memory@0 {
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+		device_type = "memory";
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 		reg = <0 0x40000000>;
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 	};
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 	leds {
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-		act {
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+		led-act {
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 			gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
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 		};
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 	};
..
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@@ -39,12 +40,82 @@
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 				  "WL_ON",
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 				  "STATUS_LED",
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 				  "LAN_RUN",
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-				  "HPD_N",
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+				  "HDMI_HPD_N",
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 				  "CAM_GPIO0",
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 				  "CAM_GPIO1",
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 				  "PWR_LOW_N";
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 		status = "okay";
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 	};
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+};
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+
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+&gpio {
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+	/*
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+	 * Taken from rpi_SCH_3b_1p2_reduced.pdf and
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+	 * the official GPU firmware DT blob.
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+	 *
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+	 * Legend:
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+	 * "NC" = not connected (no rail from the SoC)
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+	 * "FOO" = GPIO line named "FOO" on the schematic
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+	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
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+	 */
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+	gpio-line-names = "ID_SDA",
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+			  "ID_SCL",
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+			  "SDA1",
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+			  "SCL1",
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+			  "GPIO_GCLK",
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+			  "GPIO5",
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+			  "GPIO6",
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+			  "SPI_CE1_N",
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+			  "SPI_CE0_N",
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+			  "SPI_MISO",
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+			  "SPI_MOSI",
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+			  "SPI_SCLK",
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+			  "GPIO12",
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+			  "GPIO13",
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+			  /* Serial port */
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+			  "TXD1",
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+			  "RXD1",
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+			  "GPIO16",
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+			  "GPIO17",
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+			  "GPIO18",
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+			  "GPIO19",
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+			  "GPIO20",
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+			  "GPIO21",
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+			  "GPIO22",
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+			  "GPIO23",
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+			  "GPIO24",
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+			  "GPIO25",
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+			  "GPIO26",
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+			  "GPIO27",
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+			  "", /* GPIO 28 */
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+			  "LAN_RUN_BOOT",
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+			  /* Used by BT module */
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+			  "CTS0",
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+			  "RTS0",
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+			  "TXD0",
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+			  "RXD0",
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+			  /* Used by Wifi */
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+			  "SD1_CLK",
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+			  "SD1_CMD",
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+			  "SD1_DATA0",
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+			  "SD1_DATA1",
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+			  "SD1_DATA2",
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+			  "SD1_DATA3",
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+			  "PWM0_OUT",
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+			  "PWM1_OUT",
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+			  "ETHCLK",
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+			  "WIFI_CLK",
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+			  "SDA0",
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+			  "SCL0",
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+			  "SMPS_SCL",
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+			  "SMPS_SDA",
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+			  /* Used by SD Card */
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+			  "SD_CLK_R",
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+			  "SD_CMD_R",
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+			  "SD_DATA0_R",
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+			  "SD_DATA1_R",
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+			  "SD_DATA2_R",
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+			  "SD_DATA3_R";
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 };
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 &pwm {
..
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@@ -55,6 +126,8 @@
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 &hdmi {
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 	hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
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+	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
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+	status = "okay";
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 };
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 /* uart0 communicates with the BT module */