diff options
author | Chen-Yu Tsai <wens@csie.org> | 2014-08-26 03:54:55 (GMT) |
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committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2014-09-19 10:39:19 (GMT) |
commit | 9765d2d9430971ca89b09af076e7a8ff250df473 (patch) | |
tree | 6fe81efa84ab29c06b4af560068f6fafe7de084c /Documentation/devicetree/bindings | |
parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
download | linux-9765d2d9430971ca89b09af076e7a8ff250df473.tar.xz |
rtc: sun6i: Add sun6i RTC driver
This patch introduces the driver for the RTC in the Allwinner A31 and
A23 SoCs.
Unlike the RTC found in A10/A20 SoCs, which was part of the timer, the
RTC in A31/A23 are a separate hardware block, which also contain a few
controls for the RTC block hardware (a regulator and RTC block GPIO pin
latches), while also having separate interrupts for the alarms.
The hardware is different enough to make a different driver for it.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r-- | Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt new file mode 100644 index 0000000..f007e42 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt @@ -0,0 +1,17 @@ +* sun6i Real Time Clock + +RTC controller for the Allwinner A31 + +Required properties: +- compatible : Should be "allwinner,sun6i-a31-rtc" +- reg : physical base address of the controller and length of + memory mapped region. +- interrupts : IRQ lines for the RTC alarm 0 and alarm 1, in that order. + +Example: + +rtc: rtc@01f00000 { + compatible = "allwinner,sun6i-a31-rtc"; + reg = <0x01f00000 0x54>; + interrupts = <0 40 4>, <0 41 4>; +}; |