usb: mtu3: add SPL support

MediaTek platforms may need the MTU3 controller before U-Boot proper is
available, but the driver is currently selected and built only with the
main U-Boot configuration symbols.

Add an explicit SPL controller option with host and gadget modes. Make
the driver build and its role checks phase-aware so each phase can select
the MTU3 role it needs without coupling it to the U-Boot proper controller
configuration.

The upstream binding locates the xHCI child registers through the parent
ranges property. Select SPL_OF_TRANSLATE for host mode so SPL can resolve
that address before mapping it.

Signed-off-by: Julien Masson <[email protected]>
Signed-off-by: Carlo Caione <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>

0 files changed, 0 insertions, 0 deletions