[U-Boot-Users] [PATCH] pass custom data to Linux
alarsen at rea.de
Mon Nov 17 09:25:33 CET 2003
"George G. Davis" <davis_g at comcast.net> schreibt:
>Anders Larsen wrote:
>> the tags are standard, but by nature the information is board-specific,
>> so I don't see how lib_arm/armlinux.c could do much more than simply
>> calling a function from the board tree.
>> Do you think my idea of adding the hook setup_custom_tags() is _too_
>Perhaps we can use environment variables to initialise those common
>tags in armlinux.c. Those environment variable can then be uniquely
>initialised/defined in whatever way makes sense for a given target
Another solution could be to add two fields to struct bd_info, e.g.
bi_sernum and bi_revision, possibly "protected" by
#ifdef CONFIG_SERNUM_TAG and #ifdef CONFIG_REVISION_TAG
(bi_sernum is already defined similarly for at least the NX823),
and have armlinux pass those to the kernel.
The board-specific code would be responsible for filling those fields
This is arguably a cleaner solution than my generic hook.
Wolfgang, what do you think?
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