[PATCH u-boot-marvell v3 00/39] kwboot higher baudrate

[Pali Rohár]

Hello!

On Friday 01 October 2021 11:58:14 Stefan Roese wrote:
> I checked by quickly starting a terminal app and it does not seem that
> the CPU did go through a reboot. Nothing on the UART at this stage.
> 
> BUT:
> The tests I did in this mail were done with your 39 patches applied
> on top of "master-kwboot" [1]. Here booting with 115k works as explained
> below.
> 
> Now I applied the same 39 patches on top of "next" [2]. And here not
> even booting with 115k works on my AXP target. It always hangs at this
> stage:

So default baudrate 115200 works fine on master+39patches and does not
work on next+39patches? Could you check if it works on next without
applying any patch?

> [stefan at ryzen u-boot-marvell (next)]$ ./tools/kwboot -b u-boot-spl.kwb -t
> /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A1019EGY-if00-port0
> Patching image boot signature to UART
> Sending boot message. Please reboot the target...|
> Waiting 2s and flushing tty
> Sending boot image header (90112 bytes)...
>   0 %
> [......................................................................]
>  10 %
> [......................................................................]
>  20 %
> [......................................................................]
>  29 %
> [......................................................................]
>  39 %
> [......................................................................]
>  49 %
> [......................................................................]
>  59 %
> [......................................................................]
>  69 %
> [......................................................................]
>  79 %
> [......................................................................]
>  89 %
> [......................................................................]
>  99 % [....       ]
> Done
> 
> U-Boot SPL 2021.10-rc5-00431-g6c96332441cf (Oct 01 2021 - 11:56:49 +0200)
> High speed PHY - Version: 2.1.5 (COM-PHY-V20)
> High speed PHY - Ended Successfully
> DDR3 Training Sequence - Ver 5.7.4
> DDR3 Training Sequence - Ended Successfully
> Trying to boot from BOOTROM
> Returning to BootROM (return address 0xffff0aa0)...
> 
> 
> xmodem: Connection timed out
> 
> 
> This seems to work at least for 115k in the "master-kwboot" branch.
> 
> Any ideas?
> 
> Thanks,
> Stefan
> 
> [1] https://source.denx.de/u-boot/custodians/u-boot-marvell/-/commits/master-kwboot
> [2] https://source.denx.de/u-boot/custodians/u-boot-marvell/-/commits/next