[U-Boot] [PATCH 1/2] SPL: Add CONFIG_SPL_BOOTCOUNT_SUPPORT

Tom Rini trini at ti.com
Wed Oct 2 15:14:27 CEST 2013


On Mon, Sep 30, 2013 at 08:37:56AM +0200, Stefan Roese wrote:
> Hi Tom,
> 
> On 27.09.2013 21:26, Tom Rini wrote:
> > Add a new symbol, CONFIG_SPL_BOOTCOUNT_SUPPORT, to make use of the
> > existing BOOTCOUNT_SUPPORT within SPL.  It is strongly discouraged to
> > use bootcount in both SPL and full U-Boot, as they use the same counter.
> 
> I just noticed that I missed sending the SPL bootcount implementation I
> did a few weeks ago to the list. I'll send it shortly. The main
> differences I see right now are:
> 
> - My implementation requires CONFIG_BOOTCOUNT_LIMIT and
>   CONFIG_SPL_BOOTCOUNT_SUPPORT to be configured

OK, I see where you went with this, and I like this idea better.  I
shall incorporate that in v2.

> - The check is not added to the board-specific code, but the
>   medium code (here spl_nor.c). This might be consolidated even
>   more by moving it to a non-boot-medium specific location (spl.c)?

This I think takes things the wrong way.  When it's part of
spl_start_uboot we cover all boot method cases (MMC and NAND, in my
case).  Perhaps we should switch to a useful, but still weak default
function?

-- 
Tom
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