Commit graph

37 commits

Author SHA1 Message Date
Mike Frysinger
3c87989834 Blackfin: only initialize the RTC when actually used
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-10-23 05:03:50 -04:00
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00
Magnus Lilja
1a6337b013 i.MX31: Make the SPI bus and chip select configurable for MC13783
The i.MX31 has three SPI buses and each bus has several chip selects
and the MC13783 chip can be connected to any of these. The current
RTC driver for MC13783 is hardcoded for CSPI2/SS2.

This patch makes make MC13783 SPI bus and chip select configurable
via CONFIG_MC13783_SPI_BUS and CONFIG_MC13783_SPI_CS.

Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
2008-09-12 01:23:44 +02:00
Wolfgang Denk
2c8ccf2728 Makefile: fix bug introduced by commit 47ffd6c2 2008-09-09 16:55:47 +02:00
Wolfgang Denk
47ffd6c2fc Makefile: compile and link each module just once
Several source files need to be compiled and linked when one or more
config options are selected. To allow for easy selection in the
Makefiles yet to avoild multiple compilation (which costs build time)
and especially multiple linking (which causes errors), we use
"COBJS = $(sort COBJS-y)" which eliminates duplicates.

By courtesy of Detlev Zundel who suggested this approach.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-09-09 15:45:18 +02:00
Jean-Christophe PLAGNIOL-VILLARD
13b4db0e21 rs5c372: fix rtc_set prototype
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-09 02:16:20 +02:00
Wolfgang Denk
2c5e3cc499 mk48t59: fix compile problem introduced by commit d1e23194
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-09-08 22:30:22 +02:00
Jean-Christophe PLAGNIOL-VILLARD
d1e2319414 rtc: allow rtc_set to return an error and use it in cmd_date
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-07 00:56:36 +02:00
Yuri Tikhonov
5875d358f0 RX 8025 RTC: analyze 12/24-hour mode flag in rtc_get().
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
2008-09-06 01:22:20 +02:00
Wolfgang Denk
b97a31165a Merge branch 'master' of git://git.denx.de/u-boot-arm 2008-08-25 23:34:22 +02:00
Stefan Roese
4d56e8dea6 RTC: Fix Makefile problem with COBJS-$(CONFIG_RTC_DS1307 || CONFIG_RTC_DS1338)
This "||" doesn't seem to work. Now using the idea suggest by Scott Wood
to combine both config options into one line. This even allows defining
both options and not generating the target object twice.

Signed-off-by: Stefan Roese <sr@denx.de>
2008-08-25 23:32:39 +02:00
Gururaja Hebbar K R
535cfa4f3d Add ARM AMBA PL031 RTC Support
Signed-off-by: Gururaja Hebbar K R <gururajakr@sanyo.co.in>
2008-08-25 11:30:29 +02:00
Michal Simek
871c18dd30 rtc: Clean drivers/rtc/Makefile
Signed-off-by: Michal Simek <monstr@monstr.eu>
2008-08-18 23:26:54 +02:00
Kim Phillips
4109df6f75 silence misc printf formatting compiler warnings
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2008-07-10 22:12:09 +02:00
Stefan Roese
10943c9afa rtc: Fix printf format warning in m41t60.c
Signed-off-by: Stefan Roese <sr@denx.de>
2008-07-10 10:17:33 +02:00
Haavard Skinnemoen
d255bb0e78 SPI API improvements
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>
2008-06-03 20:28:50 +02:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
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>
2008-05-21 00:14:08 +02:00
Stefan Roese
0072b78be2 RTC: Fix month offset by one problem in M41T62 RTC driver
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>
2008-05-03 20:44:54 +02:00
Guennadi Liakhovetski
7ce6370982 RTC driver for MC13783
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>
2008-04-18 00:43:50 -07:00
Jean-Christophe PLAGNIOL-VILLARD
53eec6f1d2 ds174x: Fix warning on return in rtc_get and rtc_set functions
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-04-17 14:11:18 -07:00
Wolfgang Denk
5b5eb9ca5b Coding style cleanup.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-03-26 15:38:47 +01:00
Joakim Tjernlund
da8808df7a Add CFG_RTC_DS1337_NOOSC to turn off OSC output
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>
2008-03-26 15:17:42 +01:00
Stefan Roese
22ed228574 rtc: Remove 2nd reference to max6900.o in drivers/rtc/Makefile
Signed-off-by: Stefan Roese <sr@denx.de>
2008-03-26 00:06:19 +01:00
Yuri Tikhonov
b73a19e160 LWMON5: POST RTC fix
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>
2008-03-20 21:48:46 +01:00
Wolfgang Denk
e95bcc3661 Merge branch 'master' of git+ssh://10.10.0.7/home/wd/git/u-boot/master
Conflicts:

	drivers/rtc/Makefile

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-03-16 01:50:18 +01:00
Wolfgang Denk
c136724cda drivers/rtc/Makefile: keep list sorted
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-03-16 01:22:59 +01:00
Tor Krill
9536dfcce0 Add support for Intersil isl1208 RTC
Signed-off-by: Tor Krill <tor@excito.com>
2008-03-16 01:21:30 +01:00
Stefan Roese
88aff62df3 rtc: Add M41T62 support
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>
2008-03-15 07:28:03 +01:00
Wolfgang Denk
6f99eec3dc Merge branch 'master' of git://www.denx.de/git/u-boot-blackfin
Conflicts:

	Makefile
	doc/README.standalone

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-02-15 00:06:18 +01:00
Jean-Christophe PLAGNIOL-VILLARD
1b76988175 Fix remaining CONFIG_COMMANDS
update comments
Fix coding style

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-02-14 01:11:00 +01:00
Mike Frysinger
b58d8b48e2 rewrite/cleanup Blackfin RTC driver
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-04 19:26:57 -05:00
Mike Frysinger
d4d7730853 punt Blackfin VDSP headers and import sanitized/auto-generated ones
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-04 19:26:55 -05:00
Matthias Fuchs
95c6bc7d4a Add Epson RX8025 RTC support
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
2008-01-09 13:29:27 +01:00
Larry Johnson
1261827868 Add driver for STMicroelectronics M41T60 RTC
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>
2007-12-27 19:35:35 +01:00
Stefan Roese
8809a2713b rtc: Fix merging problem
Signed-off-by: Stefan Roese <sr@denx.de>
2007-12-11 11:46:01 +01:00
Stefan Roese
9caeaadf50 Merge commit 'u-boot/master' into for-1.3.1
Conflicts:

	drivers/rtc/Makefile
2007-12-11 11:34:54 +01:00
Jean-Christophe PLAGNIOL-VILLARD
0c698dcaa7 drivers/rtc : move rtc drivers to drivers/rtc
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2007-11-25 23:28:50 +01:00