[U-Boot] [PATCH v3] warp7: Fix U-Boot corruption after saving the environment

[Tom Rini <trini@konsulko.com>]

On Tue, Dec 03, 2019 at 12:04:46AM -0300, Fabio Estevam wrote:

> U-Boot binary has grown in such a way that it goes beyond the reserved
> area for the environment variables.
> 
> Running "saveenv" followed by a "reset" causes U-Boot to hang because
> of this overlap.
> 
> Fix this problem by selecting CONFIG_SYS_THUMB_BUILD=y, which
> generates a smaller u-boot-dtb.imx binary.
> 
> Also, in order to prevent this same problem in the future, use
> CONFIG_BOARD_SIZE_LIMIT, which will detect the overlap in build-time.
> 
> CONFIG_BOARD_SIZE_LIMIT does not accept math expressions, so declare
> CONFIG_ENV_OFFSET with its direct value instead.
> 
> Signed-off-by: Fabio Estevam <festevam@gmail.com>

Thanks for the rework.  Can you please look at what other i.MX boards
are likely fine, or perhaps more clearly if any i.MX5/6 SoCs do have
thumb2 related errata that might make it a bad idea to use thumb by
default ?

Reviewed-by: Tom Rini <trini@konsulko.com>

-- 
Tom
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