Add BCM63xx USBH PHY driver for BMIPS.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Simon Arlott <simon@octiron.net>
Link: https://lore.kernel.org/r/20200720131209.1236590-3-noltari@gmail.comSigned-off-by: Vinod Koul <vkoul@kernel.org>