[U-Boot-Users] [PATCH] fdt: add fdtcmd env var to allow post processing of device tree before boot

[Wolfgang Denk]

In message <F388F9D5-B685-4DD8-ACAC-146A46A1F04E at kernel.crashing.org> you wrote:
> 
> > So just run the needed commands before you run "bootm" as part of your
> > boot command sequence.
> 
> This doesnt work.  Lets say I want to remove a node or property that  
> ft_board_setup() adds.  If I do what you are suggesting the node or  
> prop will get added back:
> 
> fdt addr <FOO>
> fdt boardsetup (we assume this adds /bar/prop)
> fdt rm /bar/prop
> bootm (will call ft_board_setup and add /bar/prop back)

And exactly this has to be considered a bug in the current bootm
implementation.

Throwing out this design error would make more sense to me than adding
another quirk.


Best regards,

Wolfgang Denk

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