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

From: Gary Bisson <gary.bisson@boundarydevices.com>
To: Heiko Thiery <heiko.thiery@gmail.com>
Cc: Gary Bisson <bisson.gary@gmail.com>,
	Stephane Viau <stephane.viau@oss.nxp.com>,
	Refik Tuzakli <tuzakli.refik@gmail.com>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	buildroot <buildroot@buildroot.org>,
	Fabio Estevam <festevam@gmail.com>,
	Xavier Roumegue <xroumegue@gmail.com>
Subject: Re: [Buildroot] [PATCH 0/3] Add support to build imx8 images using mainline uboot
Date: Tue, 7 Sep 2021 10:57:57 +0200	[thread overview]
Message-ID: <YTcplRmz8UP33lr1@p1g2> (raw)
In-Reply-To: <CAEyMn7bqZwYArZ0MV=G95dpuH0U_+YzLO+aV_ZHTDrt=wBiZwg@mail.gmail.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@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@gmail.com>:
> > > >
> > > > Hi Heiko,
> > > >
> > > > On Mon, Sep 6, 2021 at 10:32 AM Heiko Thiery <heiko.thiery@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.

Regards,
Gary
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