Hi Stefan,
On 26 January 2015 at 06:17, Stefan Roese sr@denx.de wrote:
On 15.12.2014 15:19, Simon Glass wrote:
Enable CONFIG_OF_CONTROL so that U-Boot on these three boards uses a device tree for its configuration.
Signed-off-by: Simon Glass sjg@chromium.org
This need further work on the ppc4xx platforms to get it booting from flash. As now the dtb is appended to the "normal" U-Boot image. And this image is fine-tuned to fit into currently 512KiB. With the last word (reset vector of the ppc4xx) located at 0xffff.fffc. So we need to include this dtb into the image this way:
0xfff8.0000 U-Boot code / text etc ... dtb 0xffff.fffc reset vector
Looking for the current options shows that perhaps CONFIG_OF_EMBED seems to be exactly what we are need. I'll got it working on Canyonlands after a bit of debugging. I'll post the necessary small patches soon...
Sounds good, thanks!
It almost feels like you should have a mkimage image for this, to create a 512KB blob from u-boot.bin and u-boot.dtb. There must be linker magic to make this all hold together. But yes the embed option will build it in, so avoiding that.
Regards, Simon