Hi, On 05/07/2014 11:21 AM, Sebastian Hesselbarth wrote: > [Adding back the original Cc-List] > > On 05/07/2014 10:33 AM, Hans de Goede wrote: >> Hi Gregory, >> >> Gregory CLEMENT <gregory.clement <at> free-electrons.com> writes: >> >>> This patch set adds the USB support for the Armada 38x Armada >>> 375. These SoCs use an xHCI but still need specific initialization, >>> mainly to setup the windows memory on the mbus. They also use the same >>> controller that the other mvebu SoC for EHCI. >> >> <snip> >> >>> Gregory CLEMENT (20): >>> usb: ehci-orion: Fix clock reference leaking >>> usb: ehci-orion: Add the optional PHY support >> >> If you're using a proper phy driver, do you really need a soc specific ehci >> driver? I've spend a lot of time during the last release cycle to make >> ehci-platform a lot more generic, including adding (optional) phy support to >> it. It would be great if the new Armada SoCs could use ehci-platform instead >> of extending ehci-orion to cover more models (ideally most ehci-foo drivers >> would go away completely). I've no idea how feasible it is to use >> ehci-platform in your case, but IMHO it should at least be considered. > > Hans, > > unfortunately we currently have no USB-PHY driver for the other mvebu > SoCs. I have started some code grabbing for barebox bootloader and plan > to add proper USB-PHYs for Linux later. > > There is one thing very specific to mvebu SoCs, which is the mbus: > you need to setup upstream memory windows for the usb bus master. > From my current understanding, that will require at least a minimal > stub to remain for ehci-orion. > > I do think that most of the stuff in ehci-orion can (and should) be > replaced with ehci-platform then. So, we definitely consider reusing > the generic foo-platform drivers on all opportunities but IMHO we are > not yet ready for it. Ok, thanks for explaining. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
