[U-Boot] [PATCH 1/2] phy: Add USB PHY driver for the MT76x8 (7628/7688) SoC

[Daniel Schwierzeck]

Am 05.04.19 um 13:44 schrieb Stefan Roese:
> This driver is derived from this Linux driver:
> linux/drivers/phy/ralink/phy-ralink-usb.c
> 
> The driver sets up power and host mode, but also needs to configure PHY
> registers for the MT7628 and MT7688.
> 
> I removed the reset controller handling for the USB host and device, as
> it does not seem to be necessary right now. The soft reset bits for both
> devices are enabled by default and testing has shown (with hackish
> reset handling added), that USB related commands work identical with
> or without the reset handling.
> 
> Please note that the resulting USB support is tested only very minimal.
> I was able to detect one of my 3 currently available USB sticks.
> Perhaps some further work is needed to fully support the EHCI controller
> integrated in the MT76x8 SoC.
> 
> Signed-off-by: Stefan Roese <sr at denx.de>
> Cc: Marek Vasut <marex at denx.de>
> Cc: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
> ---
>  drivers/phy/Kconfig          |   8 ++
>  drivers/phy/Makefile         |   1 +
>  drivers/phy/mt76x8-usb-phy.c | 161 +++++++++++++++++++++++++++++++++++
>  3 files changed, 170 insertions(+)
>  create mode 100644 drivers/phy/mt76x8-usb-phy.c
> 

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>

-- 
- Daniel