On 07/03/14 17:30, Sergei Shtylyov wrote:
Hello.
On 03/07/2014 05:30 PM, Ben Dooks wrote:
This is a new series covering enabling the RCar series of SoCs USB
with device-tree based booting. It has been tested on the R8A7790
Lager board.
Improvements from the previous series include:
- mapping usb to the relevant phy by dt
- better use of existing pci of functions
Note, there is still an issue with the second gigabyte of memory on
the Lager, which with current kernels causes the system to abort on
startup. This series will only work if the top memory area is disabled.
Thanks for these patches. I think they start looking really good.
In my mind there are two outstanding issues:
[...]
2) Per-port USB PHY driver configuration via DT
Right now each USB host controller points to the same PHY device.
Thanks for working on describing the topology! As you know, the PHY
driver itself handles several USB ports, and I'd like to use DT to
represent the mapping between which PHY port that maps to what USB
Host controller to allow proper run time configuration. Right now in
this version of the series there is no such mapping. Of course, that
depends on proper USB PHY DT bindings...
Hmm, given the shared phy is shared and referenced counted then
I don't /think/ there is much more to be done for this. If we add
more PHYs then I would assume that each one of them would
It seems you didn't finish the sentence...
I deleted the last bit by accident.
"have their own phy driver instance"
WBR, Sergei
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
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