Hi,
First of all I'm not sure if this is the right list to post this, but I thought boot-architecture might be the best list to post.
Currently we have one hwpack for PandaBoard4430 and PandaBoardES 4460 which means that when we install the hwpack on PandaBoardES the kernel thinks it is running on PandaBoard 4430. However there is a HW difference between the two boards: Audio routing is different (for capture path). Also the hdmi pin muxing need to be different (according to the DTS files).
I can see two ways of dealing with the different versions:
1. create separate hwpacks for the revisions where only the included DTB file is different: PandaBoard 4430: omap4-panda.dtb PandaBoardES: omap4-panda-es.dtb
2. Or to have single hwpack for Panda: With the included patch in u-boot Include both omap4-panda.dtb and omap4-panda-es.dtb files to the boot partition.
Modify the boot.txt to load different dtb based on the board: if is_pandaES; then setenv bootcmd "fatload mmc 0:1 0x80200000 uImage; fatload mmc 0:1 0x81600000 uInitrd; fatload mmc 0:1 0x815f0000 omap4-panda-es.dtb; bootm 0x80200000 0x81600000 0x815f0000"; else setenv bootcmd "fatload mmc 0:1 0x80200000 uImage; fatload mmc 0:1 0x81600000 uInitrd; fatload mmc 0:1 0x815f0000 omap4-panda.dtb; bootm 0x80200000 0x81600000 0x815f0000"; fi;
For audio we need to tell the difference between the two revision and this is done via different DTB blob.
Thank you, Péter