[POWERPC] 4xx: Add USB ehci-ppc-of dts bindings.
Adds EHCI OF bindings to documentation.
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index b5e46ef..e9690de 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -57,6 +57,7 @@
n) 4xx/Axon EMAC ethernet nodes
o) Xilinx IP cores
p) Freescale Synchronous Serial Interface
+ q) USB EHCI controllers
VII - Specifying interrupt information for devices
1) interrupts property
@@ -2775,6 +2776,33 @@
interrupt-parent = < &ipic >;
};
+ q) USB EHCI controllers
+
+ Required properties:
+ - compatible : should be "usb-ehci".
+ - reg : should contain at least address and length of the standard EHCI
+ register set for the device. Optional platform-dependent registers
+ (debug-port or other) can be also specified here, but only after
+ definition of standard EHCI registers.
+ - interrupts : one EHCI interrupt should be described here.
+ If device registers are implemented in big endian mode, the device
+ node should have "big-endian-regs" property.
+ If controller implementation operates with big endian descriptors,
+ "big-endian-desc" property should be specified.
+ If both big endian registers and descriptors are used by the controller
+ implementation, "big-endian" property can be specified instead of having
+ both "big-endian-regs" and "big-endian-desc".
+
+ Example (Sequoia 440EPx):
+ ehci@e0000300 {
+ compatible = "ibm,usb-ehci-440epx", "usb-ehci";
+ interrupt-parent = <&UIC0>;
+ interrupts = <1a 4>;
+ reg = <0 e0000300 90 0 e0000390 70>;
+ big-endian;
+ };
+
+
More devices will be defined as this spec matures.
VII - Specifying interrupt information for devices