[PATCH] configs: add PineTab defconfig

[Andre Przywara <andre.przywara@arm.com>]

On Sun, 07 Mar 2021 12:34:14 -0800
Vagrant Cascadian <vagrant@debian.org> wrote:

> On 2021-03-07, Nicolas Boulenguez wrote:
> > From: Arnaud Ferraris <arnaud.ferraris@collabora.com>
> >
> > The PineTab device-tree is already in u-boot, this commit adds the corresponding
> > defconfig, based on pinephone_defconfig.
> >
> > Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>  
> ...
> > --- /dev/null
> > +++ b/configs/pinetab_defconfig  
> ...
> > +CONFIG_BOOTDELAY=0  
> 
> Setting bootdelay to 0 it almost impossible to debug issues in a running
> u-boot.
> 
> The default of 2 seconds that distro_bootcmd uses tries to strike a
> balance between not slowing the boot down too much while still being
> reasonably able to get into a u-boot shell when something goes wrong.
> 
> Individual users or vendors can set this value as they see fit, but this
> doesn't seem like a good default for mainline u-boot, at least to me.

Yeah, we just had a similar discussion recently about the Pinephone.
I think we keep the default of 2 seconds for the mainline defconfig, by
not having any explicit entry in that file, so it reverts to the
platform default.
People can always change this in their .config, even with automated
build systems, by using a simple sed command.

Cheers,
Andre