[U-Boot] [PATCH] hikey: Allow environment to store in eMMC and increase bootdelay

Neil Williams neil.williams at linaro.org
Wed Feb 13 12:31:49 UTC 2019

On Wed, 13 Feb 2019 at 12:24, Tom Rini <trini at konsulko.com> wrote:
> On Wed, Feb 13, 2019 at 02:28:54PM +0530, Manivannan Sadhasivam wrote:
> > Current Hikey configuration allows us to store u-boot environment on uSD
> > card. But this will be useless if uSD card is not inserted, hence use
> > the onboard eMMC memory for storing environment at Boot1 partition.
> > While we are at it, let's increase the boot delay to 10s also.
> >
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
> It's your board, but do you _really_ want 10s?  We moved a whole bunch
> of boards down from 10s a long time ago as 2-3s isn't hard to break in
> to for users nor QA testing

Yes. 10 seconds is required. 2 or 3 seconds is not enough to break in
for automated QA testing. We are aiming for maximum reliability here.
2 or 3 seconds causes ~25% failure rate. 5 seconds causes ~10% failure
rate. 10 seconds removes this element. (Estimates based on about a
million LAVA test jobs across 50 different types of devices across
multiple instances in multiple locations.)

> --
> Tom


Neil Williams
neil.williams at linaro.org

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