commit 9285d5053fb1cb419655a4411f985965e3838ab2
author Tejas Bhumkar <tejas.arvind.bhumkar@amd.com> Fri Oct 20 10:36:22 2023 +0530
committer Michal Simek <michal.simek@amd.com> Tue Nov 07 13:47:09 2023 +0100
tree e77dee394e43cb980276342f67ef5270a058da4c
parent 78974fb28f91cdf3bdeeddb5706b32d806948c89

arm64: zynqmp: Disable Tri-state for MIO38 Pin

gpio38 is used in SOM's kv260 to reset the Ethernet PHY.
At present, HW reset is not working properly as Tri-state 
is enabled for MIO38, causing inappropriate PHY register reads.

Disabled Tri-state for MIO38 to make HW reset work.

Tri-state disable :
ZynqMP> md 0xFF180208 2
ff180208: 00bfe7a3 00000540

Tri-state enable :
ZynqMP> md 0xFF180208 2
ff180208: 00bfe7e3 00000540

Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar@amd.com>
Link: https://lore.kernel.org/r/20231020050622.972750-1-tejas.arvind.bhumkar@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>