27 Jun
2014
27 Jun
'14
2:03 p.m.
On Fri, Jun 27, 2014 at 1:50 PM, Stefan Monnier monnier@iro.umontreal.ca wrote:
it actually needs dynamic creation based on:
- a "base" DTB
- kernel-time detection of the I2C EEPROM
- reading of a board-specific DTB file from the I2C EEPROM
- merging of the "base" DTB with the board-specific DTB.
The two middle points could be done by u-boot, since u-boot already adjusts the kernel's dtb in many cases (e.g. to provide the amount of RAM available).
ah! good point. and... wait... hang on... *thinks*.... there are circumstances where suspend, unplug, resume...
... no, it really does have to be handled by the kernel - hopefully u-boot would not need to do much (if anything).
ok, first suggestion: wookie, would you be happy to do the "base" DTB, basically set up a DTB which is in effect booting the CPU Card from USB-OTG, with UART, USB, Ethernet and RGB/TTL LCD enabled? ignore GPIO (they can change).
l.