This updates include/linux/list.h from Linux-5.7.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Kernel commit 0782e8572c ("ARM: dts: Probe am335x musb with ti-sysc")
which we pulled in during the v2020.02.0 dts/ sync moved the USB nodes
to be under a ti-sysc bus instead of ti,am33xx-usb.

This new probe order broke am335x USB under barebox, because the MUSB
drivers couldn't cope with the now different device probe order.

Pepper some -EPROBE_DEFER around to make USB work again.

Fixes: 574eed3f6f ("dts: update to v5.5-rc1")
Reported-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

The blackfin architecture has been removed from barebox. Remove the
blackfin specifics in the USB drivers as well.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Poll for a well defined time in musb_init. The current counting loop
takes too short for some devices. Tested on OMAP3 with a rather slowish
memory stick.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

This changes the MUSB support from the original Kernel state to
be usable with barebox. Tested on a custom board and the Beaglebone
Black. The host port on the Beaglebone works, the OTG port works
in device mode, but not yet in host mode.

Based on the initial MUSB port from Rolf Evers Fischer.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

This adds the necessary files from the MUSB driver directly from Linux
3.17-rc5. No changes to the original files have been made so far.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>