[U-Boot] [PATCH v2] kwboot: boot Marvell Kirkwood SoCs over a serial link

David Purdy
2012-05-09T13:25:39Z

On Wed, May 9, 2012 at 3:00 AM, Daniel Stodden
<daniel.stodden@googlemail.com> wrote:
>>
>>
>> Have you tried to put the bootrom in the debug mode ?
>>
>> https://doukki.net/doku.php?id=wiki:tutoriels:u-boot.uart#boot_from_uart0
>>
>> R?fs :
>> http://www.marvell.com/embedded-processors/kirkwood/assets/FS_88F6180_9x_6281_OpenSource.pdf
>>
>> May be it can helps to understand the 1.11 and 1.21 differences ?
>
> I never played with it. But according to the documentation, it's rather
> orthogonal to image upload. You get a command line interface. However, I
> see no command references in the docs.
>
> Might support entering it in kwboot in the future, but I don't see how
> it's would help with the protocol issues.
>
> Daniel
>

@ Daniel: Just 2 thoughts...

1. (less important...) I wonder if it is possible to query the
BootROM version via UART... if possible, on detecting 111 @ offset
ff00003c, have it print "Not Supported on V1.11 BootROM"

2. (more importantly) : I am actually _just_fine__ w/ the level of
function in your current V2. You've already done a good service to
those work on Kirkwood stuff, and would want to press anyone into
fixing something that they/we didn't break and possibly can't be
fixed. [There may well be a reason no one has gotten anything w/ the
V1.11 BootROM to work with UART-booting.]

For me, your V2 already feels "mature". Its a big step forward from
where we were.

Just my 2 cents, regards & thanks,

Dave