[RFC v2 0/5] add rtc support

[Antony Pavlov]

Chages since RFC v1:

 * rebase over latest 'next';
 * fix copy'n'paste side effects;
 * add hwclock set time function;
 * make hwclock options more close to util-linux hwclock;
 * rtc-ds1307: add ds1338 chip support (used in versatile);
 * use qemu-versatile for testing.

TODOs:
 * make it possible to read time into environment variable.

Antony Pavlov (5):
  lib: import 'bcd' from linux-3.15
  add rtc support
  rtc: import ds1307 driver from linux-3.15
  commands: add hwclock
  ARM: versatilepb_defconfig: enable RTC support

 arch/arm/configs/versatilepb_defconfig |   2 +
 commands/Kconfig                       |   8 +
 commands/Makefile                      |   1 +
 commands/hwclock.c                     | 136 +++++++++++++
 drivers/Kconfig                        |   1 +
 drivers/Makefile                       |   1 +
 drivers/rtc/Kconfig                    |  45 +++++
 drivers/rtc/Makefile                   |  10 +
 drivers/rtc/class.c                    |  53 +++++
 drivers/rtc/rtc-ds1307.c               | 345 +++++++++++++++++++++++++++++++++
 drivers/rtc/rtc-lib.c                  |  55 ++++++
 include/linux/bcd.h                    |  22 +++
 include/linux/rtc.h                    |  45 +++++
 include/rtc.h                          |   2 +
 lib/Makefile                           |   1 +
 lib/bcd.c                              |  14 ++
 16 files changed, 741 insertions(+)
 create mode 100644 commands/hwclock.c
 create mode 100644 drivers/rtc/Kconfig
 create mode 100644 drivers/rtc/Makefile
 create mode 100644 drivers/rtc/class.c
 create mode 100644 drivers/rtc/rtc-ds1307.c
 create mode 100644 drivers/rtc/rtc-lib.c
 create mode 100644 include/linux/bcd.h
 create mode 100644 include/linux/rtc.h
 create mode 100644 lib/bcd.c

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2.0.1