tree fb54a69bb52f54140472e8af467274659181abaa
parent fcccd358e4cd6199c797ad127c77c47ec1ad5983
author Marek Behún <marek.behun@nic.cz> 1570548974 +0200
committer Marek Behun <marek.behun@nic.cz> 1576074207 +0000

drivers: marvell: comphy-a3700: fix USB3 powering on when on lane 2

When USB3 is on lane 2 and indirect register access is used, the polling
at the end of the mvebu_a3700_comphy_usb3_power_on function is
incorrect.

The LOOPBACK_REG0 register should not be used at all. Instead we have to
write the LANE_STATUS1 register address (with offset
USB3PHY_LANE2_REG_BASE_OFFSET) into the indirect address register and
then we should poll indirect data register.

This fixes problems on Turris Mox, which uses lane 2 for USB3.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I968b0cccee5ddbe10a2b5614e52e52d87682aacd