brcm2708: backport upstream ARM dts commits

This gets us in sync with dts from kernel 4.11. Two patches were already
backported earlier.
I decided to use 03x prefix as it's kind of similar to the 3xx prefix:
3xx - architecture specific patches
It isn't any documented or strict rule though. We don't need to stick to
it if we hit any problems.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.9/031-v4.10-0011-ARM-bcm2835-Add-names-for-the-RPi-Zero-GPIO-lines.patch b/target/linux/brcm2708/patches-4.9/031-v4.10-0011-ARM-bcm2835-Add-names-for-the-RPi-Zero-GPIO-lines.patch
new file mode 100644
index 0000000000..5beef8ecb9
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/031-v4.10-0011-ARM-bcm2835-Add-names-for-the-RPi-Zero-GPIO-lines.patch
@@ -0,0 +1,91 @@
+From 3a1689ea752436917c5ce4487527ed6c444630ee Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <stefan.wahren@i2se.com>
+Date: Wed, 16 Nov 2016 17:52:07 +0000
+Subject: [PATCH] ARM: bcm2835: Add names for the RPi Zero GPIO lines
+
+This adds the GPIO names for the Raspberry Pi Zero. The GPIO lines
+of the RPi Zero are almost identical to the Model A+ except:
+
+* GPIO 35, 38, 40 and 45 are not connected
+* Status LED is active low
+
+Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ arch/arm/boot/dts/bcm2835-rpi-zero.dts | 65 ++++++++++++++++++++++++++++++++++
+ 1 file changed, 65 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+@@ -26,6 +26,71 @@
+ };
+ 
+ &gpio {
++	/*
++	 * This is based on 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 = "SDA0",
++			  "SCL0",
++			  "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",
++			  "NC", /* GPIO30 */
++			  "NC", /* GPIO31 */
++			  "CAM_GPIO1", /* GPIO32 */
++			  "NC", /* GPIO33 */
++			  "NC", /* GPIO34 */
++			  "NC", /* GPIO35 */
++			  "NC", /* GPIO36 */
++			  "NC", /* GPIO37 */
++			  "NC", /* GPIO38 */
++			  "NC", /* GPIO39 */
++			  "NC", /* GPIO40 */
++			  "CAM_GPIO0", /* GPIO41 */
++			  "NC", /* GPIO42 */
++			  "NC", /* GPIO43 */
++			  "NC", /* GPIO44 */
++			  "NC", /* GPIO45 */
++			  "HDMI_HPD_N",
++			  "STATUS_LED_N",
++			  /* 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 */