arm64: dts: ti: k3-j784s4-evm: Assign only lanes 0 and 1 to PCIe1
Currently PCIe1 is setup to use SERDES0 lanes 0 thru 3, and USB0 is
setup to use SERDES0 lane 3 as well.
This overlap in lanes causes the following reset related lane splat:
[ 4.846266] WARNING: CPU: 4 PID: 308 at drivers/reset/core.c:792 __reset_control_get_internal+0x128/0x160
...
[ 4.846405] Call trace:
[ 4.846407] __reset_control_get_internal+0x128/0x160
[ 4.846413] __of_reset_control_get+0x4e0/0x528
[ 4.846418] of_reset_control_array_get+0xa4/0x1f8
[ 4.846423] cdns_torrent_phy_probe+0xbc8/0x1068 [phy_cadence_torrent]
[ 4.846445] platform_probe+0xb4/0xe8
...
[ 4.846577] cdns-torrent-phy 5060000.serdes: phy@0: failed to get reset
Let's limit the PCIe1 SERDES0 lanes to 0 and 1 to avoid overlap here.
This works since PCIe1 operates in x2 mode and doesn't need 4 SERDES0
lanes.
Fixes: 27ce26fe52d4 ("arm64: dts: ti: k3-j784s4-evm: Enable PCIe0 and PCIe1 in RC Mode")
Suggested-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://lore.kernel.org/r/20240710-k3-j784s4-evm-serdes0-cleanup-v1-1-03850fe33922@redhat.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
1 file changed
