Hello.
On 01/09/2014 08:57 PM, Hans de Goede wrote:
Add support for ohci-platform instantiation from devicetree, including
optionally getting clks and a phy from devicetree, and enabling / disabling
those on power_on / off.
This should allow using ohci-platform from devicetree in various cases.
Specifically after this commit it can be used for the ohci controller found
on Allwinner sunxi SoCs.
Signed-off-by: Hans de Goede <[email protected]>
---
.../devicetree/bindings/usb/mmio-ohci.txt | 22 +++
drivers/usb/host/ohci-platform.c | 150 ++++++++++++++++++---
2 files changed, 152 insertions(+), 20 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/mmio-ohci.txt
diff --git a/Documentation/devicetree/bindings/usb/mmio-ohci.txt
b/Documentation/devicetree/bindings/usb/mmio-ohci.txt
new file mode 100644
index 0000000..9c776ed
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mmio-ohci.txt
@@ -0,0 +1,22 @@
+Generic MMIO OHCI controller
OHCI controller always uses MMIO, and likewise EHCI. You don't need to
specifically mention it.
+
+Required properties:
+- compatible : "mmio-ohci"
Likewise, it's not a good name. Why not call it "platform-ohci"?
+- reg : ohci controller register range (address and length)
+- interrupts : ohci controller interrupt
+
+Optional properties:
+- clocks : a list of phandle + clock specifier pairs
+- phys : phandle + phy specifier pair
+- phy-names : "usb"
+
+Example:
+
+ ohci0: ohci@0x01c14400 {
+ compatible = "mmio-ohci";
+ reg = <0x01c14400 0x100>;
+ interrupts = <64>;
+ clocks = <&usb_clk 6>, <&ahb_gates 2>;
+ phys = <&usbphy 1>;
+ phy-names = "usb";
+ };
WBR, Sergei
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