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

[Fabio Estevam]

Hi Paul,

I am trying to build U-Boot 2021.07-rc5 for the
imx8mm-cl-iot-gate_defconfig target and I am following the imx8mm-evk
readme: doc/board/freescale/imx8mm_evk.rst for the build instructions
and this is the output:

make[1]: Nothing to be done for 'SPL'.
  BINMAN  all
Image 'main-section' is missing external blobs and is non-functional: blob-ext

Some images are invalid

This happens because I did not provide the fip.bin binary.

Is it OK if I remove the fip.bin entry like this? Would the board still boot?

--- a/arch/arm/dts/imx8mm-cl-iot-gate-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-cl-iot-gate-u-boot.dtsi
@@ -217,18 +217,6 @@
                                        };
                                };

-                               fip {
-                                       description = "Trusted Firmware FIP";
-                                       type = "firmware";
-                                       arch = "arm64";
-                                       compression = "none";
-                                       load = <0x40310000>;
-
-                                       fip_blob: blob-ext{
-                                               filename = "fip.bin";
-                                       };
-                               };
-
                                fdt {
                                        description = "NAME";
                                        type = "flat_dt";

Could you please let me know the process for generating fip.bin?

It would be nice to have a doc/board/compulab/imx8mm-iot-gate.rst
README file with these details. I can help with that but need your
help to clarify the generation of fip.bin.

Also, is it OK if I use the ATF firmware and LPDDR binaries version as
specified in doc/board/freescale/imx8mm_evk.rst ?

Thanks,

Fabio Estevam