Hi Ramon,
On 30 April 2018 at 07:04, Ramon Fried ramon.fried@gmail.com wrote:
Hi all. I'm currently adding support for Qualcomm Dragonboards to U-boot as a primary bootloader without chain-loading using LK which is currently already supported in mainline U-boot.
Qualcomm Android images are regular android images where the DTB's are appended to the image. Qualcomm used the "unused" field in the image header to populate the size of the DTB *.
I'm looking for a more standard version for supporting these kind of images. Currently, to boot these images, you must provide DTB somewhere in mem and provide it as argument to bootm for instance.
My goal is to add support that U-boot will parse the image, see that the DTB is included and use that as the FDT automatically.
I'm looking at the "secondary" fields which are currently not used as a valid option to point to the DTB and it's size.
Do you know if someone is working on something similar, or do you have any suggestions for the right approach to this issue ?
Have you thought of using FIT? It suppose multiple DTB files, multiple kernels, compression, etc. and is readily extensible.
Regards, Simon