Dear Lee Jones,
In message 1353422034-28107-4-git-send-email-lee.jones@linaro.org you wrote:
Boottime is a tool which can be used for full system booting time measurement. Bootloader boot time is passed to the kernel component though ATAGS. The kernel-side driver then uses this information to provide full system boot time diagnostics though debugfs.
Aren't we converting more and more systems to use the device treee to pass information to the kenrel, with the result that ATAGS are kind of becoming extinct?
And forcing somthing upon a mechanism that was designed for a completely different purpose, where you see right from the first glance that it does not math easily?
This makes no sense to me. Why don't you use standard mechaisms, like a shared log buffer, and simply create time-stamped entries into the kernel boot log?
The advantages should be obvious: we will need no extra kernel modification, we do not depend on ATAGS, and we are automatically architecture-independent.
Sorry, I tend to NAK this.
Best regards,
Wolfgang Denk