ARM: dts: bcm2711-rpi-4-b: Add SoC GPIO labels

This adds the labels for all the SoC GPIOs on the Raspberry Pi 4.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/1581166975-22949-5-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 1b5a835f66bd3de475e8229cc2302576f3c57b45..cb338526270583bfdbad86f1519c1a5d9f8a8b97 100644 (file)
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -71,6 +71,79 @@
        };
 };
 
+&gpio {
+       /*
+        * Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
+        * the official GPU firmware DT blob.
+        *
+        * Legend:
+        * "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 */
+                         "TXD1",
+                         "RXD1",
+                         "GPIO16",
+                         "GPIO17",
+                         "GPIO18",
+                         "GPIO19",
+                         "GPIO20",
+                         "GPIO21",
+                         "GPIO22",
+                         "GPIO23",
+                         "GPIO24",
+                         "GPIO25",
+                         "GPIO26",
+                         "GPIO27",
+                         "RGMII_MDIO",
+                         "RGMIO_MDC",
+                         /* Used by BT module */
+                         "CTS0",
+                         "RTS0",
+                         "TXD0",
+                         "RXD0",
+                         /* Used by Wifi */
+                         "SD1_CLK",
+                         "SD1_CMD",
+                         "SD1_DATA0",
+                         "SD1_DATA1",
+                         "SD1_DATA2",
+                         "SD1_DATA3",
+                         /* Shared with SPI flash */
+                         "PWM0_MISO",
+                         "PWM1_MOSI",
+                         "STATUS_LED_G_CLK",
+                         "SPIFLASH_CE_N",
+                         "SDA0",
+                         "SCL0",
+                         "RGMII_RXCLK",
+                         "RGMII_RXCTL",
+                         "RGMII_RXD0",
+                         "RGMII_RXD1",
+                         "RGMII_RXD2",
+                         "RGMII_RXD3",
+                         "RGMII_TXCLK",
+                         "RGMII_TXCTL",
+                         "RGMII_TXD0",
+                         "RGMII_TXD1",
+                         "RGMII_TXD2",
+                         "RGMII_TXD3";
+};
+
 &pwm1 {
        pinctrl-names = "default";
        pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;