[U-Boot] [U-Boot, v3, 03/15] env: Pass additional parameters to the env lookup function

[Tom Rini]

On Tue, Jan 23, 2018 at 09:16:52PM +0100, Maxime Ripard wrote:

> In preparation for the multiple environment support, let's introduce two
> new parameters to the environment driver lookup function: the priority and
> operation.
> 
> The operation parameter is meant to identify, obviously, the operation you
> might want to perform on the environment.
> 
> The priority is a number passed to identify the environment priority you
> want to retrieve. The lowest priority parameter (0) will be the primary
> source.
> 
> Combining the two parameters allow you to support multiple environments
> through different priorities, and to change those priorities between read
> and writes operations.
> 
> This is especially useful to implement migration mechanisms where you want
> to always use the same environment first, be it to read or write, while the
> common case is more likely to use the same environment it has read from to
> write it to.
> 
> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>

Applied to u-boot/master, thanks!

-- 
Tom
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