[U-Boot] [PATCH v4 5/8] omap-common: SYS_BOOT-based fallback boot device selection for peripheral boot

[Tom Rini]

On Thu, Jul 02, 2015 at 12:19:41AM +0200, Paul Kocialkowski wrote:

> OMAP devices might boot from peripheral devices, such as UART or USB.
> When that happens, the U-Boot SPL tries to boot the next stage (complete U-Boot)
> from that peripheral device, but in most cases, this is not a valid boot device.
> 
> This introduces a fallback option that reads the SYS_BOOT pins, that are used by
> the bootrom to determine which device to boot from. It is intended for the
> SYS_BOOT value to be interpreted in the memory-preferred scheme, so that the
> U-Boot SPL can load the next stage from a valid location.
> 
> Practically, this options allows loading the U-Boot SPL through USB and have it
> load the next stage according to the memory device selected by SYS_BOOT instead
> of stalling.
> 
> Signed-off-by: Paul Kocialkowski <contact at paulk.fr>

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

-- 
Tom
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