From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Thu, 15 Nov 2012 11:25:43 +0000 Subject: [PATCH 1/2] Boottime: A tool for automatic measurement of kernel/bootloader boot time In-Reply-To: References: <1352973847-21605-1-git-send-email-lee.jones@linaro.org> <1352973847-21605-2-git-send-email-lee.jones@linaro.org> Message-ID: <20121115112543.GC21682@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > > +/* for automatic boot timing testcases */ > > +#define ATAG_BOOTTIME 0x41000403 > Where can I refer this ATAG usage? can you point out the reference URL > or patches? I assumed this would be in Mainline u-boot, but apparently not. On closer inspection of the internal ST-Ericsson u-boot, this functionality appears to be provided by patches which currently exist as delta. So in essence, the bootloader you use will have to be patched in a similar way for you to retrieve information surrounding bootloader boot times. And there was me thinking it was magic. ;) -- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog