On Mon, Nov 25, 2019 at 12:11 PM Simon Glass <s...@chromium.org> wrote: > > On x86 platforms the timer is reset to 0 when the SoC is reset. Having > this as the timer base is useful since it provides an indication of how > long it takes before U-Boot is running. > > When U-Boot sets the timer base to something else, time is lost and we > no-longer have an accurate account of the time since reset. This > particularly affects bootstage. > > Change the default to not read the timer base, leaving it at 0. Add an > option for when U-Boot is the secondary bootloader. > > Signed-off-by: Simon Glass <s...@chromium.org> > --- > > Changes in v5: None > Changes in v4: > - Enable option for slimbootloader, coreboot, efi > - Reverse the sense of the CONFIG option > > Changes in v3: None > Changes in v2: None > > arch/x86/cpu/coreboot/Kconfig | 1 + > arch/x86/cpu/slimbootloader/Kconfig | 1 + > drivers/timer/Kconfig | 14 ++++++++++++++ > drivers/timer/tsc_timer.c | 3 ++- > lib/efi/Kconfig | 1 + > 5 files changed, 19 insertions(+), 1 deletion(-) >
Reviewed-by: Bin Meng <bmeng...@gmail.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
