On Monday 28 December 2015 13:01:22 Frank Rowand wrote:
>
> Patch 2/5 copies the value from ATAG_REVISION into the fdt "/revision"
> property.
>
> If the use of /revision is limited to being a location to hold an ATAG
> value to pass to the global variable system_rev, then it would make
> sense to just copy directly from the ATAG value into system_rev in the
> same board file where you are copying the ATAGs.
Agreed. That would be simpler, and avoid a situation where someone relies
on the /revision property in DT to be set from the atags compat code
(preventing an upgrade to a newer bootloader), or on the system_rev variable
to be the same across multiple boot loaders, in the absence of other
kernel code setting it.
Arnd
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