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.
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
---
arch/arm/boot/dts/Makefile | 3 +-
arch/arm/boot/dts/bcm2835-rpi-zero.dts | 57 ++++++++++++++++++++++++++++++++
2 files changed, 59 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/boot/dts/bcm2835-rpi-zero.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e38e7c9..cafa3b1 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 0000000..12bc82d
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+#include "bcm2835.dtsi"
+#include "bcm2835-rpi.dtsi"
+
+/ {
+ compatible = "raspberrypi,model-zero", "brcm,bcm2835";
+ model = "Raspberry Pi Zero";
+
+ leds {
+ act {
+ gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
+ };
+ };
+};
+
+
+&usb {
+ dr_mode = "host";
+ h-rx-fifo-size = <774>;
+ h-np-tx-fifo-size = <256>;
+ h-tx-fifo-size = <512>;
+/*
+ * Settings for otg
+ *
+ dr_mode = "otg";
+ h-rx-fifo-size = <774>;
+ h-np-tx-fifo-size = <32>;
+ h-tx-fifo-size = <0>;
+ g-np-tx-fifo-size = <16>;
+ g-rx-fifo-size = <256>;
+ g-tx-fifo-size = <256 128 128 64 64 64 32>;
+ *
+ * Settings for peripheral
+ *
+ dr_mode = "peripheral";
+ h-rx-fifo-size = <774>;
+ h-np-tx-fifo-size = <0>;
+ h-tx-fifo-size = <0>;
+ g-np-tx-fifo-size = <16>;
+ g-rx-fifo-size = <256>;
+ g-tx-fifo-size = <256 128 128 64 64 64 32>;
+ */
+};
+
+&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>;
+};
--
1.7.9.5
--
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