Hi Heiko, On Tue, Oct 22, 2013 at 6:25 AM, Heiko Schocher <h...@denx.de> wrote: > If no softreset save registers are found on the hardware > "bootcount" is stored in the environment. To prevent a > saveenv on all reboots, the environment variable > "upgrade_available" is introduced. If "upgrade_available" is > 0, "bootcount" is always 0 therefore no need to save the > environment on u-boot boot, if "upgrade_available" is 1 "bootcount" > is incremented in the environment and environment gets written > on u-boot start. > So the Userspace Applikation must set the "upgrade_available" > and "bootcount" variable to 0 (for example with fw_setenv), > if a boot was successfully. > > Signed-off-by: Heiko Schocher <h...@denx.de>
Just curious... why not save the bootcount in a RTC scratchpad register? IIRC that's persistent across boot cycles if there's battery backup. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
