In message 200607171733.37832.laurent.pinchart@tbox.biz you wrote:
If the button has been held long enough, I would like to stop the U-Boot automatic boot process, much like a character on the serial port does.
See the other boards which modify boot behavious depeinding on key presses at power-on / reset (like lwmon, trab, delta, ...).
I thought I would implement the button check and LED blink code in last_stage_init(void). I'd like to get advices regarding the best way to then tell U-Boot not to run bootcmd automatically.
The boards we ported usually execute programmable commands when a key press (resp. a combination of keys) is detected. Such a command can for example modify the bootdelay setting, change bootargs or redefine bootcmd.
mistake). fpga_load() can easily be called from last_stage_init(), but I wonder if there is a public API to load the FPGA configuration file from a CramFS partition much like the fsload command does. I'd like to avoid duplicate code as much as possible.
Yes, there is. Guess what common/cmd_fpga.c and common/fpga.c are for...
Best regards,
Wolfgang Denk