board: adi: Add support for SC594

This adds support for the Analog Devices SC594 SOM and configurations
for using it with both the SOMCRR-EZKIT and SOMCRR-EZLITE.

Signed-off-by: Vasileios Bimpikas <[email protected]>
Signed-off-by: Utsav Agarwal <[email protected]>
Signed-off-by: Arturs Artamonovs <[email protected]>
Signed-off-by: Nathan Barrett-Morrison <[email protected]>
Signed-off-by: Caleb Ethridge <[email protected]>
Signed-off-by: Philip Molloy <[email protected]>
Signed-off-by: Greg Malysa <[email protected]>
Signed-off-by: Philip Molloy <[email protected]>
Link: https://lore.kernel.org/u-boot/[email protected]/

Author: gmalysa

arch/arm/dts/sc594-som-ezkit.dts

@@ -11,3 +11,129 @@
 	model = "ADI SC594-SOM-EZKIT";
 	compatible = "adi,sc594-som-ezkit", "adi,sc59x";
 };
+
+&i2c2 {
+	gpio_expander2: mcp23017@22 {
+		compatible = "microchip,mcp23017";
+		reg = <0x22>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		bootph-pre-ram;
+
+		eeprom {
+			gpio-hog;
+			gpios = <0 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "eeprom-en";
+			bootph-pre-ram;
+		};
+
+		pushbutton {
+			gpio-hog;
+			gpios = <1 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "pushbutton-en";
+			bootph-pre-ram;
+		};
+
+		microsd {
+			gpio-hog;
+			gpios = <2 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "microsd-spi";
+			bootph-pre-ram;
+		};
+
+		adau-reset {
+			gpio-hog;
+			gpios = <5 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "adau-reset";
+			bootph-pre-ram;
+		};
+
+		adau1962 {
+			gpio-hog;
+			gpios = <6 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "adau1962-en";
+			bootph-pre-ram;
+		};
+
+		adau1979 {
+			gpio-hog;
+			gpios = <7 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "adau1979-en";
+			bootph-pre-ram;
+		};
+
+		octal {
+			gpio-hog;
+			gpios = <8 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "octal-spi-cs-en";
+			bootph-pre-ram;
+		};
+
+		spdif-dig {
+			gpio-hog;
+			gpios = <9 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "spdif-digital-en";
+			bootph-pre-ram;
+		};
+
+		spdif-opt {
+			gpio-hog;
+			gpios = <10 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "spdif-optical-en";
+			bootph-pre-ram;
+		};
+
+		audio-jack {
+			gpio-hog;
+			gpios = <11 GPIO_ACTIVE_HIGH>;
+			output-high;
+			line-name = "audio-jack-sel";
+			bootph-pre-ram;
+		};
+
+		mlb {
+			gpio-hog;
+			gpios = <12 GPIO_ACTIVE_HIGH>;
+			output-high;
+			line-name = "~mlb-en";
+			bootph-pre-ram;
+		};
+
+		eth1 {
+			gpio-hog;
+			gpios = <13 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "eth1-en";
+			bootph-pre-ram;
+		};
+
+		eth1-reset {
+			gpio-hog;
+			gpios = <14 GPIO_ACTIVE_LOW>;
+			/*
+			 * USB0 lines are shared with Eth1 so  Eth PHY must be held in reset
+			 * when using the USB
+			 */
+			output-high;
+			line-name = "eth1-reset";
+			bootph-pre-ram;
+		};
+
+		gige-reset {
+			gpio-hog;
+			gpios = <15 GPIO_ACTIVE_HIGH>;
+			output-high;
+			line-name = "gige-reset";
+			bootph-pre-ram;
+		};
+	};
+};

arch/arm/dts/sc594-som-ezlite.dts

@@ -11,3 +11,86 @@
 	model = "ADI SC594-SOM-EZLITE";
 	compatible = "adi,sc594-som-ezlite", "adi,sc59x";
 };
+
+&i2c2 {
+	gpio_expander: adp5588@30 {
+		compatible = "adi,adp5588";
+		reg = <0x30>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		bootph-pre-ram;
+
+		usb-spi0 {
+			gpio-hog;
+			gpios = <8 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "usb_spi0_en";
+			bootph-pre-ram;
+		};
+
+		usb-spi1 {
+			gpio-hog;
+			gpios = <9 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "usb_spi1_en";
+			bootph-pre-ram;
+		};
+
+		usb-qspi-en {
+			gpio-hog;
+			gpios = <10 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "usb_qspi_en";
+			bootph-pre-ram;
+		};
+
+		usb-qspi-reset {
+			gpio-hog;
+			gpios = <11 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "usb_qspi_reset";
+			bootph-pre-ram;
+		};
+
+		eth0-reset {
+			gpio-hog;
+			gpios = <12 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "eth0-reset";
+			bootph-pre-ram;
+		};
+
+		adau1372-pwrdwn {
+			gpio-hog;
+			gpios = <13 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "adau1372_pwrdwn";
+			bootph-pre-ram;
+		};
+
+		led1 {
+			gpio-hog;
+			gpios = <15 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "led1-en";
+			bootph-pre-ram;
+		};
+
+		led2 {
+			gpio-hog;
+			gpios = <16 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "led2-en";
+			bootph-pre-ram;
+		};
+
+		led3 {
+			gpio-hog;
+			gpios = <17 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "led3-en";
+			bootph-pre-ram;
+		};
+
+	};
+};