[U-Boot] how to use a function provided by u-boot in linux driver
Wolfgang Denk
wd at denx.de
Tue May 19 23:25:18 CEST 2009
Dear Kartheek N S,
In message <23610373.post at talk.nabble.com> you wrote:
>
> I would like to use miiphy_read and miiphy_write functions provided by
> u-boot in the linux kernel driver.
This is not possible, and the request makes no sense.
When Linux boots, all the memory used by U-Boot is freed; no trace of
U-Boot is left behind in memory. You cannot call any U-Boot functions
from Linux, as U-Boot does not exist any more in RAM.
> This is required for reading the link status of each of the phys
> associated with a switch.
Linux has it's own interface and drivers to talk to PHYs and the like.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
It's hard to make a program foolproof because fools are so ingenious.
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