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[POWERPC] 4xx: Add USB ehci-ppc-of dts bindings.

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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>
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Valentine Barshak 2007-09-25 05:27:56 +10:00 committed by Josh Boyer
parent fde9d16fae
commit 41abd68e6f
1 changed files with 28 additions and 0 deletions
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28
Documentation/powerpc/booting-without-of.txt
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@ -57,6 +57,7 @@ Table of Contents
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 @@ platforms are moved over to use the flattened-device-tree model.
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