Building U-Boot for Compulab's imx8mm-cl-iot-gate board

[Paul Liu]

Hi Fabio,

It might work. But why? I mean the imx8mm-evk has already switched to
binman on the mainline.
So we should do the same. If you can't get into U-boot prompt using binman
I can give you more detailed information.

Yours,
Paul



On Wed, 11 Aug 2021 at 07:13, Fabio Estevam <festevam at gmail.com> wrote:

> Hi Paul,
>
> Thanks for your response.
>
> On Thu, Jul 1, 2021 at 6:38 PM Paul Liu <paul.liu at linaro.org> wrote:
> >
> > Hi Fabio,
> >
> > We have dfu_alt_info set. So that we can capsule update from UEFI.
> > First, "setenv -e -nv -bs -rt -v OsIndications =0x04"
> > And then we can "efidebug capsule update -v ${loadaddr}".
> >
> > To make the capsule binary, we need to create a capsule1.itb with the
> following content:
> > /dts-v1/;
> >
> > / {
> >        description = "Automatic U-Boot environment update";
> >        #address-cells = <2>;
> >
> >        images {
> >                flash-bin {
> >                        description = "U-Boot binary on SPI Flash";
> >                        data = /incbin/("flash.bin");
> >                        compression = "none";
> >                        type = "firmware";
> >                        arch = "arm64";
> >                        load = <0>;
> >                        hash-1 {
> >                                algo = "sha1";
> >                        };
> >                };
> >                u-boot-itb {
> >                        description = "U-Boot binary";
> >                        data = /incbin/("u-boot.itb");
> >                        compression = "none";
> >                        type = "firmware";
> >                         arch = "arm64";
> >                        load = <0>;
> >                        hash-1 {
> >                                algo = "sha1";
> >                        };
> >                };
> >        };
> > };
> >
> > And then "./tools/mkimage -f capsule1.its capsule1.itb"
> > "./tools/mkeficapsule --fit capsule1.itb --index 1 capsule1.bin"
> >
> > And we can tftp the capsule1.bin to ${loadaddr} and then use the capsule
> update.
>
> In my case, I have the original U-Boot 2020.04 version from Compulab
> on the IoT Gateway board.
>
> Would it be possible to run a patch like this
> https://pastebin.com/raw/Rq1Yv6ka
>
> And then just load flash.bin via TFTP and flash it to offset 33K of the
> eMMC?
>
> Would that work?
>
> Thanks,
>
> Fabio Estevam
>