S32G with TFA boot

[piaochunri]

The question is why we need to skip 256 bytes from the beginning of the SD-card.And with bsp-35.0 ,how should I config TFA?Thank u.

[Daniel-Aguirre]

Hi,

We might be misunderstanding the overall inquiry. If so, we do apologize.

The 256 bytes skip seems to be related to the image structure itself. As for building BSP35.0 with TF-A, we understand that BSP35.0 is already available with TF-A, there is no additional configuration required.

Please, let us know.

[piaochunri]

If I build image without yocto,I use the following line to deploy.

sudo dd if=<path/to/fip.s32> of=/dev/ skip=512 seek=512 \ iflag=skip_bytes oflag=seek_bytes conv=fsync,notrunc

And if I build with yocto,in the log I find I need to copy 256 bytes first then skip 512 bytes.

256 bytes copied, 0.00766673 s, 33.4 kB/s

What is the difference and are they both work ok?Thank u.

[Daniel-Aguirre]

Hi,

Thanks for your feedback.

In general, the following command should be used if TF-A is build manually and modified under the current SD card image:

For more information, we can recommend looking into the BSP35.0 User Manual.

Please, let us know.