[PATCH v2 10/11] ARM: at91: Add xload support to skov-arm9cpu

[Sam Ravnborg]

Hi myself,

On Tue, Jun 28, 2022 at 10:38:48PM +0200, Sam Ravnborg wrote:
> This updates skov-arm9cpu with xload support, and we can now
> use barebox as a replacment for at91bootstrap.
> 
> Only boot via SD card is supported.
> 
> Includes several suggestions from: Ahmad Fatoum <a.fatoum at pengutronix.de>
> - Use ENTRY_FUNCTION_WITHSTACK
> - Reshuffeled order in early init
> - SD card in not highcapacity
> - Drop irrelevant max image size in images/Makefile.at91
> 
> NOTE: Actual status
> [x] dbgu support in pbl works (can print)
> [x] Other init stuff ifdeffed out - from at91bootstrap
> [ ] Check what the original code used for div/mul - there is some confusion
> [x] load barebox.bin and boots it. Right now mount fails
> [ ] barebox.bin can start a linux kernel
> [ ] support default SD card boots and nfsboot
> [x] update Kconfig to work with xload
> [x] xload image support
This patch is also WIP - I still need to check some details and the todo
list needs a refresh as I have completed more of the items.

	Sam