Hi Simon, Thanks for your answer.
The script that you are telling it is Env.txt right ? What is a 'dm tree' ? Please could you provide me more infos about this ? Thanks for your answer in advance. On Sat, 27 Aug 2022 at 02:21, Simon Glass <[email protected]> wrote: > Hi Aubin, > > On Fri, 26 Aug 2022 at 06:41, momo aubin <[email protected]> wrote: > > > > Dear all, > > > > > > Is there any way that allows us to know that uboot has initialised all > his > > peripherals before starting loading kernel ? > > > > The goal of this check is to reset the board in case of bad > initialisation > > and choose a different uboot . > > > > Thanks for your answer in advance. > > Aubin > > If there is a failure then it likely results in an error-return code > from board_init_f() or board_init_r(). These generally halt U-Boot / > cause a reboot. But this only covers the peripherals that U-Boot sets > up early, like serial, clocks, pinctrl, MMC, PCI, etc. > > U-Boot typically does not init a peripheral unless it is needed for U-Boot. > > While U-Boot is running (e.g. a script) it may start up other > peripherals (e.g. to read a kernel from USB) and in those cases errors > can be handled by the script. > > You can use 'dm tree' to see what devices have been probed successfully. > > Regards, > Simon >
