1 files changed, 77 insertions, 4 deletions

diff --git a/arch/arm/dts/bcm2836-rpi-2-b.dts b/arch/arm/dts/bcm2836-rpi-2-b.dts
index e8de41444b..7b4e651baf 100644
--- a/arch/arm/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/dts/bcm2836-rpi-2-b.dts
@@ -1,6 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2836.dtsi"
-#include "bcm2835-rpi.dtsi"
+#include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-smsc9514.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
 
@@ -8,18 +9,18 @@
 	compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
 	model = "Raspberry Pi 2 Model B";
 
-	memory {
+	memory@0 {
 		reg = <0 0x40000000>;
 	};
 
 	leds {
 		act {
-			gpios = <&gpio 47 0>;
+			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
 		};
 
 		pwr {
 			label = "PWR";
-			gpios = <&gpio 35 0>;
+			gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
 			default-state = "keep";
 			linux,default-trigger = "default-on";
 		};
@@ -27,6 +28,72 @@
 };
 
 &gpio {
+	/*
+	 * Taken from rpi_SCH_2b_1p2_reduced.pdf and
+	 * the official GPU firmware DT blob.
+	 *
+	 * Legend:
+	 * "NC" = not connected (no rail from the SoC)
+	 * "FOO" = GPIO line named "FOO" on the schematic
+	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
+	 */
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
+			  "SDA1",
+			  "SCL1",
+			  "GPIO_GCLK",
+			  "GPIO5",
+			  "GPIO6",
+			  "SPI_CE1_N",
+			  "SPI_CE0_N",
+			  "SPI_MISO",
+			  "SPI_MOSI",
+			  "SPI_SCLK",
+			  "GPIO12",
+			  "GPIO13",
+			  /* Serial port */
+			  "TXD0",
+			  "RXD0",
+			  "GPIO16",
+			  "GPIO17",
+			  "GPIO18",
+			  "GPIO19",
+			  "GPIO20",
+			  "GPIO21",
+			  "GPIO22",
+			  "GPIO23",
+			  "GPIO24",
+			  "GPIO25",
+			  "GPIO26",
+			  "GPIO27",
+			  "SDA0",
+			  "SCL0",
+			  "", /* GPIO30 */
+			  "LAN_RUN",
+			  "CAM_GPIO1",
+			  "", /* GPIO33 */
+			  "", /* GPIO34 */
+			  "PWR_LOW_N",
+			  "", /* GPIO36 */
+			  "", /* GPIO37 */
+			  "USB_LIMIT",
+			  "", /* GPIO39 */
+			  "PWM0_OUT",
+			  "CAM_GPIO0",
+			  "SMPS_SCL",
+			  "SMPS_SDA",
+			  "ETHCLK",
+			  "PWM1_OUT",
+			  "HDMI_HPD_N",
+			  "STATUS_LED",
+			  /* Used by SD Card */
+			  "SD_CLK_R",
+			  "SD_CMD_R",
+			  "SD_DATA0_R",
+			  "SD_DATA1_R",
+			  "SD_DATA2_R",
+			  "SD_DATA3_R";
+
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 
 	/* I2S interface */
@@ -40,6 +107,12 @@
 	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio14>;