About size of scfw_tcm.bin and porting kit in yocto imx8qxpc0mek in kernel 5.4.70-2.3.0

[yibhan]

Dear all,

I am currently developing with yocto kernel 5.4.70-2.3.0 with reference of imx8qxpc0-mek to my custom board.
If you build imx8qxpc0-mek yocto, scfw_tcm.bin is created. Its size is 161 kbytes and
I can't get the source for it. The scfw porting kit for kernel 5.4.70-2.3.0 on the nxp site is 1.7.0, and
even if you receive it and build it according to the guide, the operation is different from that provided by
imx8qxpc0-mek, and the scfw_tcm.bin binary size is different. The options I built are below.

: make qx R=b0 B=mek D=1 M=1 U=0 DDR_CON=imx8qx_dcd_1.2GHz

If you build with the scfw porting kit (1.7.0) and make scfw_tcm.bin, an error occurs in the kernel as shown below.

2.484930] remoteproc remoteproc0: Synchronizing with preloaded co-processor
[ 2.492098] remoteproc remoteproc0: no dtb rsrc-table
[ 2.497177] imx-rproc imx8x_cm4@0: Invalid rsrc table header

Is the source in scfw_tcm.bin on yocto kernel 5.4.70-2.3.0 provided by nxp based on 1.7.0?
And, what about the build options?

[joanxie]

Is the source in scfw_tcm.bin on yocto kernel 5.4.70-2.3.0 provided by nxp based on 1.7.0?

>yes

I haven't built image on my computer now, what size you get from yocto building? how about just  use "make qx R=b0 B=mek", should be built by this command

[yibhan]

Dear joanxie,

Thank you for response,

what size you get from yocto building?

-> 161kB(164,864 bytes)

how about just  use "make qx R=b0 B=mek", should be built by this command

-> 158kB(161,856 bytes)

[joanxie]

maybe the toolchain version is different from porting kit and default scfw_tcm.bin built by scfw team, you can try  "make qx R=b0 B=mek D=1" again

[yibhan]

Dear joanxie,

If I remake build as you recommand, but size of scfw_tcm.bin is 158kb(161,856bytes)

Could let me know which version of scfw compiler is used in imx8qxpc0 mek in yocto kernel 5.4.70-2.30?

I have used gcc-arm-none-eabi-8-2018-q4-major as toolchain.

[joanxie]

 I don't know the version, which is built by scfw team, if you use porting kit scfw_tcm.bin, do you get any error ?

[yibhan]

Dear joanxie,

If  use scfw_tcm.bin of scfw porting in 1.7.0, there are some error kernel log I guess.

[ 2.497177] imx-rproc imx8x_cm4@0: Invalid rsrc table header

When I use yocto scfw_tcm.bin in imx8qxpc0_mek, there is no such error above log.

and hdmi display(it6263 hdmi converter) is not working and no displayed.

Best regards,

[yibhan]

Dear joanxie,

If use scfw_tcm.bin of scfw porting in 1.7.0, there are some error kernel log I guess.

[ 2.497177] imx-rproc imx8x_cm4@0: Invalid rsrc table header

hdmi display(it6263 hdmi converter) is not working and no displayed.

When I use yocto scfw_tcm.bin in imx8qxpc0_mek, there is no such error above log.

hdmi display is working.

[joanxie]

you can refer to this document:

"https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/How-to-use-non-rpmsg-dtbs-on-i-MX-8QXP/t..."