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2011-08-04hwmon: do not init sensors on startupHeiko Schocher
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>
2011-05-12hwmon: Extend lm63.c to support LM64Dirk Eibach
This patch adds support for the National LM64 temperature sensor with integrated fan control to lm63.c. Main difference between LM63 and LM64 is 16°C offset in sensor readings. Signed-off-by: Dirk Eibach <eibach@gdsys.de>
2010-11-17Switch from archive libraries to partial linkingSebastien Carlier
Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-10-06ds1621: Fix negative temperature readingsJeff Dischler
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>
2010-10-06ds1621: Clean up coding stylePeter Tyser
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-10-06ds1621: Poll for register write completionPeter Tyser
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>
2009-09-04Misc ds1722 fixupsGraeme Russ
This patch is based on a patch submitted by Jean-Christophe PLAGNIOL-VILLARD on 18th May 2008 as part of a general i386 / sc520 fixup which was never applied Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-08-11dtt, lm81: move unneccessary printf into a debug printfHeiko Schocher
Signed-off-by: Heiko Schocher <hs@denx.de>
2008-10-18rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18lm75: Make the LM75 MULTI_BUS compatible.Heiko Schocher
Signed-off-by: Heiko Schocher <hs@denx.de>
2008-10-18lm75: fix Codingstyle issues.Heiko Schocher
Signed-off-by: Heiko Schocher <hs@denx.de>
2008-10-18hwmon: Add LM63 supportDirk Eibach
This patch adds support for the National LM63 temperature sensor with integrated fan control. It's used on the GDSys Neo board (405EP) which will be submitted later. Signed-off-by: Dirk Eibach <eibach@gdsys.de> Acked-by: Stefan Roese <sr@denx.de>
2008-10-14Remove CFG_EEPROM_PAGE* dependencies for temperature sensorsPeter Tyser
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>
2008-09-10ppc4xx: Allow DTT_I2C_DEV_CODE configured by CFG_I2C_DTT_ADDRVictor Gallardo
On AMCC Arches board DTT_I2C_DEV_CODE is different then canyonlands and glacier. Signed-off-by: Victor Gallardo <vgallardo@amcc.com>
2008-08-18Minor code cleanup: keep lists sorted.Wolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-08-18Add support for ADT7460 I2C monitor chipRicardo Ribalda Delgado
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@uam.es>
2008-07-13hwmon: rename CONFIG_DS1722 to CONFIG_DTT_DS1722Michal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu> Acked-by: Stefan Roese <sr@denx.de>
2008-07-13hwmon: Cleaning hwmon devicesMichal Simek
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>
2008-06-03DTT: Issue one-shot command on AD7414 (LM75 code) to read tempStefan Roese
On AD7414 the first value upon bootup is not read correctly. This is most likely because of the 800ms update time of the temp register in normal update mode. To get current values each time we issue the "dtt" command including upon powerup we switch into one-short mode. This patch fixes the problem on AD7414 equipped boards (Sequoia, Canyonlands etc), that temp value printed in the bootup log was incorrect. Signed-off-by: Stefan Roese <sr@denx.de>
2008-04-13LM73 bug fix for negative temperatures and cleanupLarry Johnson
When the LM73 temperature sensor measures a temperature below 0 C, the current driver does not perform sign extension, so the result returned is 512 C too high. This patch fixes the problem, and does general cleanup of the code. Signed-off-by: Larry Johnson <lrj@acm.org>
2008-02-22LM75 bug fix for negative temperaturesLarry Johnson
When the LM75 temperature sensor measures a temperature below 0 C, the current driver does not perform sign extension, so the result returned is 256 C too high. This patch fixes the problem. Signed-off-by: Larry Johnson <lrj@acm.org>
2008-01-12Remove superfluous preprocessor conditionals from LM73 driverLarry Johnson
(1) Remove unused symbol "CFG_EEPROM_PAGE_WRITE_ENABLE". (2) Use conditional Makefile.o. Signed-off-by: Larry Johnson <lrj@acm.org>
2007-12-27Add driver for National Semiconductor LM73 temperature sensorLarry Johnson
This driver is based on the driver for the LM75. Signed-off-by: Larry Johnson <lrj@acm.org>
2007-12-11Merge commit 'u-boot/master' into for-1.3.1Stefan Roese
Conflicts: drivers/rtc/Makefile
2007-11-25drivers/hwmon : move hardware monitor drviers to drivers/hwmonJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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