Re: installboot(8) changes for installing u-boot directly to SPI flash (or other raw flash devices)

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, Sep 14, 2019 at 12:24:28PM +0200, Tobias Nygren wrote:
> On Fri, 13 Sep 2019 15:08:10 -0700
> Jason Thorpe <thorpej%me.com@localhost> wrote:
> 
> > Most installboot.plist files don't need this because they use the default u-boot-install directive because they *only* support SDMMC / eMMC).
> 
> Actually I think many (most?) of the sunxi boards do support boot from
> SPI flash. It's not populated on the board but can be attached directly
> on the expansion pin header. It would be nice to ship with config for
> all boot options supported by the CPU, even ones that require board
> mods.

The right pins have to be available on the expansion pin header. For example,
A20 can boot only from SPI0, and only from the default set of pins for
SPI0.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--