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authorStefan Wahren <stefan.wahren@i2se.com>2016-08-21 18:10:03 +0300
committerEric Anholt <eric@anholt.net>2016-08-24 23:33:19 +0300
commitc8336249c1eeca288919e3286f7dd03ae1d8ceae (patch)
tree3eebda977177ec01bf7149f40de43f3ffb2688ac
parent33fdf6fd764ed7deea87094f30d7d3dc76e154de (diff)
downloadlinux-c8336249c1eeca288919e3286f7dd03ae1d8ceae.tar.xz
ARM: dts: bcm2835: Add Raspberry Pi Zero
The Raspberry Pi Zero is a minified version of model A+. It's notable there is no PWR LED and the ACT LED is inverted. Additionally the Pi Zero is capable of the USB peripheral mode. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Eric Anholt <eric@anholt.net>
-rw-r--r--arch/arm/boot/dts/Makefile3
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-zero.dts40
2 files changed, 42 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index faacd52370d2..6576e3f000c9 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -69,7 +69,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
bcm2835-rpi-b-rev2.dtb \
bcm2835-rpi-b-plus.dtb \
bcm2835-rpi-a-plus.dtb \
- bcm2836-rpi-2-b.dtb
+ bcm2836-rpi-2-b.dtb \
+ bcm2835-rpi-zero.dtb
dtb-$(CONFIG_ARCH_BCM_5301X) += \
bcm4708-asus-rt-ac56u.dtb \
bcm4708-asus-rt-ac68u.dtb \
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
new file mode 100644
index 000000000000..60e359fafc5b
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016 Stefan Wahren <stefan.wahren@i2se.com>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include "bcm2835.dtsi"
+#include "bcm2835-rpi.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
+
+/ {
+ compatible = "raspberrypi,model-zero", "brcm,bcm2835";
+ model = "Raspberry Pi Zero";
+
+ leds {
+ act {
+ gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
+ };
+ };
+};
+
+&gpio {
+ pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>;
+
+ /* I2S interface */
+ i2s_alt0: i2s_alt0 {
+ brcm,pins = <18 19 20 21>;
+ brcm,function = <BCM2835_FSEL_ALT0>;
+ };
+};
+
+&hdmi {
+ hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+};