On Wed, Sep 26, 2012 at 04:49:41PM -0700, Olof Johansson wrote:
On Mon, Sep 24, 2012 at 09:13:53AM +0200, Andrew Lunn wrote:
quoted
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+Required properties:
+- compatible: must be "marvell,orion-ehci"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: The EHCI interrupt
+- phy-version: Can be one of:
+ "NA" - Don't touch the phy, something else has already configured it.
+ "orion5x" - PHY setup as specified by the Orion5x Errata
+
+Example:
+
+ ehci at 50000 {
+ compatible = "marvell,orion-ehci";
+ reg = <0x50000 0x1000>;
+ interrupts = <19>;
+ phy-version = "NA";
+ };
This isn't an appropriate binding for phy. I know, it maps straight
over from the platform data, but it doesn't focus on what the actual
hardware is.
A couple of options. What probably makes most sense depending on how
other phy bindings are moving ahead is to add a phy node under the
ehci controller for the "orion5x" case, and have an appropriate
compatible value there. No node means the same as "NA" in the above
binding. Alternatively, have a phy phandle that points to the phy
device if it sits on an i2c bus, etc.
I Olaf
Could i suggest a third option:
I just drop USB phy configuration all together. Only mach-orion5x
needs this and nobody has shown any interest in moving mach-orion5x to
DT. So i would just hard code it to "NA".
If anybody does show interest in DT for orion5x, we can add a phy node
under ehci as a pure extension which does not affect backward
compatibility.
Yeah, that works too.
Andrew,
Did I miss the update of this series/patch?
thx,
Jason.