summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorBoris Brezillon <boris.brezillon@free-electrons.com>2015-03-17 19:15:48 +0300
committerNicolas Ferre <nicolas.ferre@atmel.com>2015-05-22 12:11:32 +0300
commitb34e96bdcf2908086a5993827bce1114576a2e75 (patch)
tree95b882a45aef0ac7e130b284dea1529571cfffd8
parent441cf98aee11f38116cfdb3806ceacdf4d5bc6ec (diff)
downloadlinux-b34e96bdcf2908086a5993827bce1114576a2e75.tar.xz
USB: atmel: update DT bindings documentation
Add documentation for the missing clocks, clock-names, reg and interrupts properties. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
-rw-r--r--Documentation/devicetree/bindings/usb/atmel-usb.txt25
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/atmel-usb.txt b/Documentation/devicetree/bindings/usb/atmel-usb.txt
index e180d56c75db..1be8d7a26c15 100644
--- a/Documentation/devicetree/bindings/usb/atmel-usb.txt
+++ b/Documentation/devicetree/bindings/usb/atmel-usb.txt
@@ -5,6 +5,13 @@ OHCI
Required properties:
- compatible: Should be "atmel,at91rm9200-ohci" for USB controllers
used in host mode.
+ - reg: Address and length of the register set for the device
+ - interrupts: Should contain ehci interrupt
+ - clocks: Should reference the peripheral, host and system clocks
+ - clock-names: Should contains two strings
+ "ohci_clk" for the peripheral clock
+ "hclk" for the host clock
+ "uhpck" for the system clock
- num-ports: Number of ports.
- atmel,vbus-gpio: If present, specifies a gpio that needs to be
activated for the bus to be powered.
@@ -14,6 +21,8 @@ Required properties:
usb0: ohci@00500000 {
compatible = "atmel,at91rm9200-ohci", "usb-ohci";
reg = <0x00500000 0x100000>;
+ clocks = <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
+ clock-names = "ohci_clk", "hclk", "uhpck";
interrupts = <20 4>;
num-ports = <2>;
};
@@ -23,11 +32,19 @@ EHCI
Required properties:
- compatible: Should be "atmel,at91sam9g45-ehci" for USB controllers
used in host mode.
+ - reg: Address and length of the register set for the device
+ - interrupts: Should contain ehci interrupt
+ - clocks: Should reference the peripheral and the UTMI clocks
+ - clock-names: Should contains two strings
+ "ehci_clk" for the peripheral clock
+ "usb_clk" for the UTMI clock
usb1: ehci@00800000 {
compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
reg = <0x00800000 0x100000>;
interrupts = <22 4>;
+ clocks = <&utmi>, <&uhphs_clk>;
+ clock-names = "usb_clk", "ehci_clk";
};
AT91 USB device controller
@@ -53,6 +70,8 @@ usb1: gadget@fffa4000 {
compatible = "atmel,at91rm9200-udc";
reg = <0xfffa4000 0x4000>;
interrupts = <10 4>;
+ clocks = <&udc_clk>, <&udpck>;
+ clock-names = "pclk", "hclk";
atmel,vbus-gpio = <&pioC 5 0>;
};
@@ -65,6 +84,10 @@ Required properties:
"sama5d3-udc"
- reg: Address and length of the register set for the device
- interrupts: Should contain usba interrupt
+ - clocks: Should reference the peripheral and host clocks
+ - clock-names: Should contains two strings
+ "pclk" for the peripheral clock
+ "hclk" for the host clock
- ep childnode: To specify the number of endpoints and their properties.
Optional properties:
@@ -86,6 +109,8 @@ usb2: gadget@fff78000 {
reg = <0x00600000 0x80000
0xfff78000 0x400>;
interrupts = <27 4 0>;
+ clocks = <&utmi>, <&udphs_clk>;
+ clock-names = "hclk", "pclk";
atmel,vbus-gpio = <&pioB 19 0>;
ep0 {