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path: root/drivers/rtc
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* silence misc printf formatting compiler warningsKim Phillips2008-07-10-2/+2
| | | | Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
* rtc: Fix printf format warning in m41t60.cStefan Roese2008-07-10-1/+1
| | | | Signed-off-by: Stefan Roese <sr@denx.de>
* SPI API improvementsHaavard Skinnemoen2008-06-03-23/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de>
* Big white-space cleanup.Wolfgang Denk2008-05-21-27/+27
| | | | | | | | | | | This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
* RTC: Fix month offset by one problem in M41T62 RTC driverStefan Roese2008-05-03-2/+2
| | | | | | | | | | This patch fixes a problem with the month being read and written incorrectly (offset by one). This only gets visible by also using the Linux driver (rtc-m41t80). Tested on AMCC Canyonlands. Signed-off-by: Stefan Roese <sr@denx.de>
* RTC driver for MC13783Guennadi Liakhovetski2008-04-18-0/+83
| | | | | | | MC13783 is a multifunction IS with an SPI interface to the host. This driver handles the RTC controller in this chip. Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
* ds174x: Fix warning on return in rtc_get and rtc_set functionsJean-Christophe PLAGNIOL-VILLARD2008-04-17-2/+1
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Coding style cleanup.Wolfgang Denk2008-03-26-11/+11
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Add CFG_RTC_DS1337_NOOSC to turn off OSC outputJoakim Tjernlund2008-03-26-2/+9
| | | | | | | | The default settings for RTC DS1337 keeps the OSC output, 32,768 Hz, on. This add CFG_RTC_DS1337_NOOSC to turn it off. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
* rtc: Remove 2nd reference to max6900.o in drivers/rtc/MakefileStefan Roese2008-03-26-1/+0
| | | | Signed-off-by: Stefan Roese <sr@denx.de>
* LWMON5: POST RTC fixYuri Tikhonov2008-03-20-38/+116
| | | | | | | | | | | | | | | | | Modify the RTC API to provide one a status for the time reported by the rtc_get() function: 0 - a reliable time is guaranteed, < 0 - a reliable time isn't guaranteed (power fault, clock issues, and so on). The RTC chip drivers are responsible for providing this info if the corresponding chip supports such functionality. If not - always report that the time is reliable. The POST RTC test was modified to detect the RTC faults utilizing this new rtc_get() feature. Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
* Merge branch 'master' of git+ssh://10.10.0.7/home/wd/git/u-boot/masterWolfgang Denk2008-03-16-3/+171
|\ | | | | | | | | | | | | | | Conflicts: drivers/rtc/Makefile Signed-off-by: Wolfgang Denk <wd@denx.de>
| * drivers/rtc/Makefile: keep list sortedWolfgang Denk2008-03-16-5/+5
| | | | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
| * Add support for Intersil isl1208 RTCTor Krill2008-03-16-0/+167
| | | | | | | | Signed-off-by: Tor Krill <tor@excito.com>
* | rtc: Add M41T62 supportStefan Roese2008-03-15-0/+136
|/ | | | | | | This patch add support for the STM M41T62 RTC. It is used and tested on the AMCC Canyonlands 406EX platform. Signed-off-by: Stefan Roese <sr@denx.de>
* Merge branch 'master' of git://www.denx.de/git/u-boot-blackfinWolfgang Denk2008-02-15-144/+118
|\ | | | | | | | | | | | | | | | | Conflicts: Makefile doc/README.standalone Signed-off-by: Wolfgang Denk <wd@denx.de>
| * rewrite/cleanup Blackfin RTC driverMike Frysinger2008-02-04-158/+118
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * punt Blackfin VDSP headers and import sanitized/auto-generated onesMike Frysinger2008-02-04-1/+15
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Fix remaining CONFIG_COMMANDSJean-Christophe PLAGNIOL-VILLARD2008-02-14-4/+1
|/ | | | | | | update comments Fix coding style Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Add Epson RX8025 RTC supportMatthias Fuchs2008-01-09-0/+228
| | | | Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
* Add driver for STMicroelectronics M41T60 RTCLarry Johnson2007-12-27-0/+262
| | | | | | | | | | | | | | | This driver is based on the driver for the M41T11. In the intended application, the RTC will be powered by a large capacitor, rather than a battery. The driver therefore checks to see whether the RTC has lost power. The chip's OUT bit is normally reset from its power-up state. If the OUT bit is read as set, or if the date and time are not valid, then the RTC is assumed to have lost power, and its date and time are reset to 1900-01-01 00:00:00. Support for adjusting the speed of the clock to improve accuracy is provided through an environment variable. Signed-off-by: Larry Johnson <lrj@acm.org>
* rtc: Fix merging problemStefan Roese2007-12-11-0/+178
| | | | Signed-off-by: Stefan Roese <sr@denx.de>
* Merge commit 'u-boot/master' into for-1.3.1Stefan Roese2007-12-11-0/+1
| | | | | | Conflicts: drivers/rtc/Makefile
* drivers/rtc : move rtc drivers to drivers/rtcJean-Christophe PLAGNIOL-VILLARD2007-11-25-0/+4693
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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