kwboot: Marvell Dove UART booting

[Tony Dinh]

Hi Pali,

Please see below.

On Tue, Feb 15, 2022 at 3:02 PM Pali Rohár <pali at kernel.org> wrote:
>
> Hello!
>
> On Wednesday 22 December 2021 20:08:56 Tony Dinh wrote:
> > *** With jumper inserted, serial console connected, start serial console
> >
> > # picocom --b 115200 --f n --p n --d 8 /dev/ttyUSB0
> > Terminal ready
> >
> > *** Hit <Enter> here to get to the prompt and execute "x 0x0E"
> >
> > Bootstrap 2.33>
> > Bootstrap 2.33>x 0x0E
> >
> > *** No more input possible here,  so Control-A-X to exit serial console
> >
> > Terminating...
> > Thanks for using picocom
> >
> > *** Run kwboot
> >
> > # kwboot -t -p -B 115200 /dev/ttyUSB0 -D /localdisk/mtd0.t5335z
> > Patching image boot signature to UART
> > Aligning image header to Xmodem block size
> > Waiting 2s and flushing tty
> > Sending boot image header (512 bytes)...
> >  25 % [....                                                                  ]
> > Done
> > Sending boot image data (607664 bytes)...
> >   0 % [......................................................................]
> >   1 % [......................................................................]
> >   2 % [......................................................................]
> > <snip>
> >  95 % [......................................................................]
> >  97 % [......................................................................]
> >  98 % [..........................................................            ]
> > Done
> > Finishing transfer
> > [Type Ctrl-\ + c to quit]
> >
> > *** Hung here! BootROM did not execute the image payload.
>
> I found this github repository https://github.com/rabeeh/u-boot with
> Dove version of U-Boot. In its README file is section about UART:
> https://github.com/rabeeh/u-boot/blob/master/README.MARVELL#L131-L138
> It points to the file with "w" commands which needs to be executed in
> bootrom prior doing calling "x" command (which enters into x-modem):
> https://github.com/rabeeh/u-boot/blob/master/tools/doimage_dove/uart_init.txt
>
> Could you try to execute all those "w" commands in that other and then
> use kwboot if it helps?

Unfortunately, it did not help. I ran the same procedure. Connected
the HP t5335z jumper to get to the BootROM debug prompt, and executed
the "w" commands. And then "x e" to enter UART booting mode. And then
execute kwboot. Here is the log.

<BEGIN log>

Bootstrap 2.33>w  D00D0210  00000050
>w  D00D802C 01010000
>w  D00D802C 00010000
>w d0800E40 00000100
>w d0800E50 00120012
>w d0800E40 00000101
>w d0800E50 000d000d
>w d0800E40 00000102
>w d0800E50 000a000a
>w d0800E40 00000103
>w d0800E50 00080008
>w d0800E40 00000200
>w d0800E50 00120012
>w d0800E40 00000201
>w d0800E50 000d000d
>w d0800E40 00000202
>w d0800E50 000a000a
>w d0800E40 00000203
>w d0800E50 00080008

>x e

Terminating...
Thanks for using picocom

./kwboot-2022/kwboot  -t -B 115200 /dev/ttyUSB0 -D mtd0.t5335z
kwboot version 2022.04-rc2-00001-gab8903a24d-dirty
Patching image boot signature to UART
Sending boot image header (3072 bytes)...
  4 % [........................                                              ]
Done
Sending boot image data (605104 bytes)...
  0 % [......................................................................]
  1 % [......................................................................]
<snip>
 97 % [......................................................................]
 99 % [......................................                                ]
Done
Finishing transfer
[Type Ctrl-\ + c to quit]

<END log>

Thanks,
Tony