Arm TrustFirmware’s console log is shown on the shared console (ttyUSB3) on Jetpack Xavier AGX devkit. I want to redirect it to other uart. (e.g., /dev/ttyUSB0, /dev/ttyUSB1 or any other) I tried with ENABLE_CONSOLE_SPE as 0 in platform_t194.mk but I can’t see atf console log in any ttyUSBx. Wha…

hello goodsj, you may disassembler the dtb file into text file and check the mappings. please also check below sources for reference, $L4T_Sources/r32.5.1/Linux_for_Tegra/source/public/hardware/nvidia/soc/t19x/kernel-dts/tegra194-soc/tegra194-soc-uart.dtsi for example, uartc: serial@c280000 {..…

hello goodsj, may I know what’s your use-case to separate the logs? it’s Xavier series to having combined uart feature to output all logs to the same port. thanks

I’d like to debug ATF (to configure pcie). I guess the log is not shown after LK start on shared uart console. Thanks.

hello goodsj, could you please gather the uart logs for reference, thanks

Hello JerryChang, I added pcie base address memory region to tegra_mmap and not sure it accessed or not because I can’t check the log. MAP_REGION_FLAT(0x14100000, 0x20000, (uint8_t)MT_DEVICE | (uint8_t)MT_RW | (uint8_t)MT_SECURE), The log is below. I set DEBUG=1 and LOG_…

hello goodsj, you’re building ATF image, (i.e. bl31.bin) by your own, right? had you also take the ATF image (and Trusty image) by using the python script, gen_tos_part_img.py to generate the tos.img? you should also perform the partition update to burn secure-os partition for verification, for …

Hi JerryChang, Right, I used that I build and flash it with the scripts.

hello goodsj, I’ve revisit your logs, and your pcie base address 0x14100000 is allocated, for example, mmap: ... VA:0x14100000 PA:0x14100000 size:0x20000 attr:0x8 you may also refer to tegra_def.h for the specific platform definitions. there’re base address you may check as see-also. thanks

Hello JerryChang, [image] JerryChang: it’s Xavier series to having combined uart feature to output all logs to the same port. AGX can support shared uart only? Thank you.

Hello JerryChang, Atfer disabling shared console, if I use UARTA then how can I connect ? Can I still use ttyUSBx via USB cable or need some pins on 40-Pin connector? Thanks.

Change atf console log uart

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

JerryChang July 21, 2021, 3:25am 11

hello goodsj,

here’s discussion thread Topic 160948, which share some changes for disabling combined uart on Jetson AGX Xavier.

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Change atf console log uart

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