I am currently having a problem with the ttyTHS1 uart (Uart on the 40-pin Exp Header).
When I try to open ttyTHS1 (115200, 8N1 for example), I get the following error:
[ 278.026365] serial-tegra 3110000.serial: FIFO mode not enabled [ 278.032304] serial-tegra 3110000.serial: Uart HW init failed, err = -5
Before asking you, I switched from custom carried bard to a dev kit:
Model P3518 (See picture).
In both cases, I get the same error.
I noticed (in both cases):
- After a reboot, I can open it for the first time without error,
- then if I close it, I can’t reopen ttyTHS1 without this error.
I will try to put the content of the different registers written and read for you to give you more context.
Custmom Linux Yocto image based on OE4T ( OpenEmbedded for Tegra)