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>
cc: Holger Brunck <holger.brunck@keymile.com>
Fix bug where signed data was processed as unsigned. The bug previously
resulted in negative temperature readings wrapping around, eg -10 became
245.
Signed-off-by: Jeff Dischler <jdischler@xes-inc.com>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Poll the ds1621 NV Memory Busy bit instead of waiting a static amount of
time for register writes.
Also add config retister bit defines.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
The checks for CFG_EEPROM_PAGE_WRITE_ENABLE and
CFG_EEPROM_PAGE_WRITE_BITS in various temperature
sensor drivers are not necessary
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Clean Makefile
Move device specific values to driver for better reading
Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stefan Roese <sr@denx.de>
Wolfgang Denk
Heiko Schocher
Jeff Dischler
Peter Tyser
Jean-Christophe PLAGNIOL-VILLARD
Michal Simek