fdt: update bcm283x device tree sources to Linux 4.14 state
Upstream Linux has received a few device tree updates to the RPi
which we should propagate into the builtin U-Boot one as well to
gain hardware support.
This patch bumps the dts files to their 4.14 Linux counterparts
with the exception of sdhost on 32bit RPi versions. There we stay
with iproc as the sdhost driver is missing in U-Boot.
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/arm/dts/bcm2835-rpi-a.dts b/arch/arm/dts/bcm2835-rpi-a.dts
index 306a84e..4b1af06 100644
--- a/arch/arm/dts/bcm2835-rpi-a.dts
+++ b/arch/arm/dts/bcm2835-rpi-a.dts
@@ -1,6 +1,7 @@
/dts-v1/;
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
/ {
compatible = "raspberrypi,model-a", "brcm,bcm2835";
@@ -14,7 +15,74 @@
};
&gpio {
- pinctrl-0 = <&gpioout &alt0 &i2s_alt2 &alt3>;
+ /*
+ * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
+ * RPI00021 sheet 02
+ *
+ * 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 = "SDA0",
+ "SCL0",
+ "SDA1",
+ "SCL1",
+ "GPIO_GCLK",
+ "CAM_GPIO1",
+ "LAN_RUN",
+ "SPI_CE1_N",
+ "SPI_CE0_N",
+ "SPI_MISO",
+ "SPI_MOSI",
+ "SPI_SCLK",
+ "NC", /* GPIO12 */
+ "NC", /* GPIO13 */
+ /* Serial port */
+ "TXD0",
+ "RXD0",
+ "STATUS_LED_N",
+ "GPIO17",
+ "GPIO18",
+ "NC", /* GPIO19 */
+ "NC", /* GPIO20 */
+ "GPIO21",
+ "GPIO22",
+ "GPIO23",
+ "GPIO24",
+ "GPIO25",
+ "NC", /* GPIO26 */
+ "CAM_GPIO0",
+ /* Binary number representing build/revision */
+ "CONFIG0",
+ "CONFIG1",
+ "CONFIG2",
+ "CONFIG3",
+ "NC", /* GPIO32 */
+ "NC", /* GPIO33 */
+ "NC", /* GPIO34 */
+ "NC", /* GPIO35 */
+ "NC", /* GPIO36 */
+ "NC", /* GPIO37 */
+ "NC", /* GPIO38 */
+ "NC", /* GPIO39 */
+ "PWM0_OUT",
+ "NC", /* GPIO41 */
+ "NC", /* GPIO42 */
+ "NC", /* GPIO43 */
+ "NC", /* GPIO44 */
+ "PWM1_OUT",
+ "HDMI_HPD_P",
+ "SD_CARD_DET",
+ /* 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_alt2>;
/* I2S interface */
i2s_alt2: i2s_alt2 {
@@ -26,3 +94,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};