u-boot.git/include/rtc.h, branch v2018.07-rc2

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini

dm: rtc: Add 16-bit read/write support

2017-04-10T02:02:03+00:00

At present there are only 8-bit and 32-bit read/write routines in
the rtc uclass driver. This adds the 16-bit support.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

rtc:ds3232/ds3231: Add support to generate 32KHz output

2015-09-02T02:37:23+00:00

RTC devices can generate 32KHz output if for
-DS3232 device, EN32KHz bit and BB32KHz bit are set
-DS3231 device, EN32KHz bit is set, BB32KHz bit is don't care

Patch adds rtc_enable_32khz_output() which when called
will enable 32KHz output on 32KHz pin

Signed-off-by: Priyanka Jain 
Reviewed-by: York Sun

dm: rtc: Add a uclass for real-time clocks

2015-05-06T02:58:39+00:00

Add a uclass for real-time clocks which support getting the current time,
setting it and resetting the chip to a known-working state. Some RTCs have
additional registers which can be used to store settings, so also provide
an interface to these.

Signed-off-by: Simon Glass

dm: rtc: Split structure definition into its own file

2015-05-06T02:58:20+00:00

Move the definition of struct rtc_time into a separate file so that sandbox
can include it without requiring common.h and the like.

Signed-off-by: Simon Glass

dm: rtc: Rename mktime() and reduce the number of parameters

2015-05-06T02:58:20+00:00

Most callers unpack the structure and pass each member. It seems better to
pass the whole structure instead, as with the C library. Also add an rtc_
prefix.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher

dm: rtc: Rename to_tm() to rtc_to_tm() and add error code

2015-05-06T02:58:20+00:00

Rename this function so that it is clear that it is provided by the RTC.
Also return an error when it cannot function as expected. This is unlikely
to occur since it works for dates since 1752 and many RTCs do not support
such old dates. Still it is better to be accurate.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher

dm: rtc: Rename gregorian day function

2015-05-06T02:58:20+00:00

Change this function name to something more descriptive. Also return a
failure code if it cannot calculate a correct value.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher

x86: rtc: mc146818: Add helpers to read/write CMOS RAM

2015-01-24T13:13:44+00:00

On x86 we use CMOS RAM to read and write some settings. Add basic support
for this, including access to registers 128-255.

Signed-off-by: Simon Glass

rtc: mc146818: Set up RTC at start of day

2014-11-25T13:33:59+00:00

Provide a function to set up the RTC ready for use.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng