diff options
| author | Lee Jones <lee.jones@linaro.org> | 2015-04-09 15:47:32 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2015-04-30 13:21:29 +0100 |
| commit | 5cb69745da35c372b3db001efbd3967b633ba0d1 (patch) | |
| tree | 27d3102811b55ea254e2a70be27eec6863c9aa72 /Documentation/devicetree/bindings/rtc | |
| parent | 49ae77905c56da6d73e8d4a73aa030718a096551 (diff) | |
rtc: bindings: Provide ST bindings for ST's LPC RTC device
On current ST platforms the LPC controls a number of functions including
Watchdog and Real Time Clock. This patch provides the bindings used to
configure LPC in RTC mode.
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/rtc')
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt b/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt new file mode 100644 index 000000000000..73407f502e4e --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt @@ -0,0 +1,25 @@ +STMicroelectronics Low Power Controller (LPC) - RTC +=================================================== + +LPC currently supports Watchdog OR Real Time Clock functionality. + +[See: ../watchdog/st_lpc_wdt.txt for Watchdog options] + +Required properties + +- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc" + "st,stih415-lpc" "st,stid127-lpc" +- reg : LPC registers base address + size +- interrupts : LPC interrupt line number and associated flags +- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt) +- st,lpc-mode : The LPC can run either one of two modes ST_LPC_MODE_RTC [0] or + ST_LPC_MODE_WDT [1]. One (and only one) mode must be + selected. + +Example: + lpc@fde05000 { + compatible = "st,stih407-lpc"; + reg = <0xfde05000 0x1000>; + clocks = <&clk_s_d3_flexgen CLK_LPC_0>; + st,lpc-mode = <ST_LPC_MODE_RTC>; + }; |