[Buildroot] [PATCH 0/3] Add support to build imx8 images using mainline uboot

[Heiko Thiery]

Hi Gary,

Am Di., 7. Sept. 2021 um 10:58 Uhr schrieb Gary Bisson
<gary.bisson at boundarydevices.com>:
>
> Hi Thiery,
>
> On Tue, Sep 07, 2021 at 10:43:43AM +0200, Heiko Thiery wrote:
> > Hi Gary,
> >
> > Am Di., 7. Sept. 2021 um 10:36 Uhr schrieb Gary Bisson
> > <gary.bisson at boundarydevices.com>:
> > >
> > > Hi Thiery,
> > >
> > > On Tue, Sep 07, 2021 at 08:36:30AM +0200, Heiko Thiery wrote:
> > > > Hi Fabio,
> > > >
> > > > Am Mo., 6. Sept. 2021 um 17:23 Uhr schrieb Fabio Estevam <festevam at gmail.com>:
> > > > >
> > > > > Hi Heiko,
> > > > >
> > > > > On Mon, Sep 6, 2021 at 10:32 AM Heiko Thiery <heiko.thiery at gmail.com> wrote:
> > > > >
> > > > > > What board are you exactly asking for? the nxp imx8mm evk? I have a
> > > > > > tree for the kontron pitx-imx8m [1] that has an i.MX8MQ.
> > > > > >
> > > > > > Maybe this also answers your question ;-/
> > > > > >
> > > > > > [1] https://github.com/hthiery/buildroot/tree/uboot-imx
> > > > >
> > > > > This helps, thanks.
> > >
> > > I've tried this series with our U-Boot (2020.07 based) and it doesn't
> > > work for me as using UBOOT_FORMAT_CUSTOM isn't sufficient as it only
> > > copies the binaries selected but doesn't use it as target [1].
> > >
> > > So I wonder, which U-Boot version are you using? Is the flash.bin
> > > created automatically when issuing 'make all'?
> > > In my version of U-Boot it requires to use 'make flash.bin' otherwise it
> > > simply doesn't generate flash.bin.
> > >
> > > I believe we would still need a new U-Boot target name [2] but I'd like
> > > to understand how it worked for you
> >
> > Yes, when switching to binman the "make all" target will create the
> > flash.bin (all output that is defined/described in binman). So in your
> > case when you use the "old" u-boot way of creating this output we have
> > to add a new u-boot target in buildroot.
>
> Thanks for the quick reply. Indeed I just saw in your U-Boot tree how
> the binman description was done, it's pretty neat.
> So do you know if the flash.bin target is here to stay in U-Boot or is
> binman to new way to go and flash.bin becomes an outdated target? I know
> it's more of a U-Boot question than Buildroot but just to understand if
> it even makes sense to add the target if it's going to disappear in
> upcoming releases.

As far as I understand the goal is to switch to binman for all boards.
That would mean the flash.bin target will disappear. But what about
having a custom build target in buildroot?

-- 
Heiko