[U-Boot] [PATCH] omap-common: SYS_BOOT fallback logic correction

[Tom Rini <trini@konsulko.com>]

On Tue, Aug 25, 2015 at 05:40:53PM +0200, Paul Kocialkowski wrote:

> The SYS_BOOT-based fallback shouldn't only check for one of the conditions of
> use and then let the switch/case handle each boot device without enforcing the
> conditions for each type of boot device again.
> 
> For instance, this behaviour would trigger the fallback for UART when
> BOOT_DEVICE_UART is defined, CONFIG_SPL_YMODEM_SUPPORT is enabled (which should
> be a show-stopper) and e.g. BOOT_DEVICE_USB is enabled and not
> CONFIG_SPL_USB_SUPPORT.
> Separating the logic for USB and UART is a first step to solve this.
> 
> In addition, a similar problematic behaviour took place when BOOT_DEVICE_USBETH,
> BOOT_DEVICE_USB and CONFIG_SPL_USBETH_SUPPORT were enabled and not
> CONFIG_SPL_USB_SUPPORT.
> 
> Since BOOT_DEVICE_USBETH is only a problem when it's defined to the same value
> as BOOT_DEVICE_USB, we can check that BOOT_DEVICE_USBETH and BOOT_DEVICE_USB are
> different and if not, that CONFIG_SPL_USBETH_SUPPORT is not enabled to enable
> the SYS_BOOT-based fallback mechanism.
> 
> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

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

But I'm going to wait until Hannes can report back with a Tested-by too,
thanks!

-- 
Tom
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