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From 9715590cd5024b1eb657d06a6eb60a48751e221c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Thu, 31 Dec 2015 16:44:58 +0100
Subject: [PATCH] bcm270x_dt: Add dwc2 and dwc-otg overlays
---
arch/arm/boot/dts/overlays/Makefile | 2 ++
arch/arm/boot/dts/overlays/README | 21 +++++++++++++++++++
arch/arm/boot/dts/overlays/dwc-otg-overlay.dts | 20 ++++++++++++++++++
arch/arm/boot/dts/overlays/dwc2-overlay.dts | 29 ++++++++++++++++++++++++++
4 files changed, 72 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/dwc-otg-overlay.dts
create mode 100644 arch/arm/boot/dts/overlays/dwc2-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -15,6 +15,8 @@ endif
dtb-$(RPI_DT_OVERLAYS) += ads7846-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += at86rf233-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += dwc2-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += dwc-otg-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += dht11-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += enc28j60-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += gpio-ir-overlay.dtb
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -198,6 +198,27 @@ Params: gpiopin GPIO co
(default 4)
+Name: dwc-otg
+Info: Selects the dwc_otg USB controller driver which has fiq support. This
+ is the default on all except the Pi Zero which defaults to dwc2.
+Load: dtoverlay=dwc-otg
+Params: <None>
+
+
+Name: dwc2
+Info: Selects the dwc2 USB controller driver
+Load: dtoverlay=dwc2,<param>=<val>
+Params: dr_mode Dual role mode: "host", "peripheral" or "otg"
+
+ g-rx-fifo-size Size of rx fifo size in gadget mode
+
+ g-np-tx-fifo-size Size of non-periodic tx fifo size in gadget
+ mode
+
+ g-tx-fifo-size Size of periodic tx fifo per endpoint
+ (except ep0) in gadget mode
+
+
[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/dwc-otg-overlay.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+/plugin/;
+
+/{
+ compatible = "brcm,bcm2708";
+
+ fragment@0 {
+ target = <&usb>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ __overlay__ {
+ compatible = "brcm,bcm2708-usb";
+ reg = <0x7e980000 0x10000>,
+ <0x7e006000 0x1000>;
+ interrupts = <2 0>,
+ <1 9>;
+ status = "okay";
+ };
+ };
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/dwc2-overlay.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+/plugin/;
+
+/{
+ compatible = "brcm,bcm2708";
+
+ fragment@0 {
+ target = <&usb>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ __overlay__ {
+ compatible = "brcm,bcm2835-usb";
+ reg = <0x7e980000 0x10000>;
+ interrupts = <1 9>;
+ dr_mode = "otg";
+ g-np-tx-fifo-size = <32>;
+ g-rx-fifo-size = <256>;
+ g-tx-fifo-size = <256 128 128 64 64 64 32>;
+ status = "okay";
+ };
+ };
+
+ __overrides__ {
+ dr_mode = <&usb>, "dr_mode";
+ g-np-tx-fifo-size = <&usb>,"g-np-tx-fifo-size:0";
+ g-rx-fifo-size = <&usb>,"g-rx-fifo-size:0";
+ g-tx-fifo-size = <&usb>,"g-tx-fifo-size:0";
+ };
+};
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