ARM: dts: bcm283x: Add dtsi for OTG and gadget mode

The Raspberry Pi Zero also supports OTG and gadget mode. So provide 2 dtsi files to configure the USB interface accordingly. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
lategoodbye · Sep 16, 2016 · a6ec75d · a6ec75d
1 parent 9702236
commit a6ec75d
Show file tree

Hide file tree

Showing 3 changed files with 18 additions and 0 deletions.
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -12,6 +12,12 @@
 /dts-v1/;
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
+
+/*
+ * Include bcm283x-rpi-usb-host.dtsi for host mode
+ * or include bcm283x-rpi-usb-otg.dtsi for OTG mode
+ * or include bcm283x-rpi-usb-peripheral.dtsi for gadget mode
+ */
 #include "bcm283x-rpi-usb-host.dtsi"
 
 / {

diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
@@ -0,0 +1,6 @@
+&usb {
+	dr_mode = "otg";
+	g-np-tx-fifo-size = <16>;
+	g-rx-fifo-size = <256>;
+	g-tx-fifo-size = <256 128 128 64 64 64 32>;
+};
diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi
@@ -0,0 +1,6 @@
+&usb {
+	dr_mode = "peripheral";
+	g-np-tx-fifo-size = <16>;
+	g-rx-fifo-size = <256>;
+	g-tx-fifo-size = <256 128 128 64 64 64 32>;
+};