9 Jan
2011
9 Jan
'11
5:49 p.m.
Dear Heiko Schocher,
In message 1292232401-26523-1-git-send-email-hs@denx.de you wrote:
The U-Boot Design Principles[1] clearly say:
Initialize devices only when they are needed within U-Boot, i.e. don't initialize the Ethernet interface(s) unless U-Boot performs a download over Ethernet; don't initialize any IDE or USB devices unless U-Boot actually tries to load files from these, etc. (and don't forget to shut down these devices after using them - otherwise nasty things may happen when you try to boot your OS).
So, do not initialize and read the sensors on startup.
Signed-off-by: Heiko Schocher hs@denx.de cc: Wolfgang Denk wd@denx.de
- changes since v1 add comments from Wolfgang Denk use BUILD_BUG_ON to create a compileerror if there are defined more than 32 sensors.
Please resubmit with the BUILD_BUG_ON patch. Thanks.
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@denx.de
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