Re: [U-Boot] a few questions about saving bootcount in the environment

On Tue, 26 Jul 2016, Wolfgang Denk wrote:

Dear Robert,

In message alpine.LFD.2.20.1607260734020.10018@localhost.localdomain you wrote:

...

ok, i am now *totally* confused, so let's start at the beginning. it's my understanding that selecting CONFIG_BOOTCOUNT_LIMIT means you

right.

...

want to use the boot counter, it does *not* select what method you want to use to store the boot counter, correct? but here's the confusing part.

Which exact part is confusing?

...

#ifdef CONFIG_BOOTCOUNT_LIMIT
      bootcount = bootcount_load();
      bootcount++;
      bootcount_store(bootcount);
      setenv_ulong("bootcount", bootcount);      <----- ?????
      bootlimit = getenv_ulong("bootlimit", 10, 0);
#endif /* CONFIG_BOOTCOUNT_LIMIT */

This is only the equivalent of a "setenv", so you have a variable in the environment which you can use in scripts or compare against "bootlimit".

There is NO automatic "saveenv" here...

ah, you're right, you're right, sorry. little by little ...

rday