arm: juno: enable USB
The Juno board features a standard compliant EHCI/OHCI USB host controller pair, which we can just enable. The platform data is taken from the device tree. This allows to use USB mass storage (the only storage on a Juno r0) for loading. At least on my board USB seems a bit flaky, I need two "usb reset" sequences after the "usb start" to detect an USB hard drive. Signed-off-by: NAndre Przywara <andre.przywara@arm.com> Acked-by: NLiviu Dudau <liviu.dudau@arm.com> Reviewed-by: NLinus Walleij <linus.walleij@linaro.org> Reviewed-by: NSimon Glass <sjg@chromium.org>
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