[PATCH v4 0/6] rpi5: initial support

Jens Maus mail at jens-maus.de
Fri Jan 19 17:12:12 CET 2024


> Am 19.01.2024 um 15:24 schrieb Ivan T. Ivanov <iivanov at suse.de>:
> 
>> On 19 Jan 2024, at 16:08, Jens Maus <mail at jens-maus.de> wrote:
>> 
>> On the HDMI port, right? But what about the serial UART output? 
> 
> Yes, I can see serial output from U-Boot. I am using one of these
> simple USB<->UART cables. You can see serial output when you boot
> with RPiOS, when you use "Raspberry Pi Debug Probe”, right?

Yes, when booting up RPiOS I can first see the same serial debug output regarding the rpi boot loader until the same „NOTICE: BL31: …“ lines. Then RPiOS comes up and in the end I get an interactive serial console login "raspberrypi login:“ prompt on the RaspberryPi Debug Probe connection to that special UART port on the rpi5 pcb.

So you say with your own u-boot.bin you see serial U-Boot output after that „NOTICE: BL31: …“ lines? On that special UART port on the rpi5 or on the UART on the GPIO header?

regards,
jens
-- 
Jens Maus, Dresden/Germany
http://jens-maus.de/



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