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

Tom Rini trini at konsulko.com
Wed Feb 13 12:46:59 UTC 2019


On Wed, Feb 13, 2019 at 12:31:49PM +0000, Neil Williams wrote:
> 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.)

Interesting.  Do you know why it's so hard to catch the boot?

-- 
Tom
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