From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris BREZILLON Subject: [PATCH v8 09/10] rtc: at91sam9: add DT bindings documentation Date: Tue, 23 Sep 2014 13:24:03 +0200 Message-ID: <1411471444-2764-10-git-send-email-boris.brezillon@free-electrons.com> References: <1411471444-2764-1-git-send-email-boris.brezillon@free-electrons.com> Return-path: In-Reply-To: <1411471444-2764-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org To: Nicolas Ferre , Jean-Christophe Plagniol-Villard , Alexandre Belloni , Andrew Victor , Alessandro Zummo , rtc-linux@googlegroups.com, Samuel Ortiz , Lee Jones , Johan Hovold Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Boris BREZILLON List-Id: devicetree@vger.kernel.org Add RTT bindings documentation. Signed-off-by: Boris BREZILLON Acked-by: Nicolas Ferre Acked-by: Johan Hovold --- .../devicetree/bindings/rtc/atmel,at91sam9-rtc.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt diff --git a/Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt b/Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt new file mode 100644 index 0000000..f307a1d --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt @@ -0,0 +1,23 @@ +Atmel AT91SAM9260 Real Time Timer + +Required properties: +- compatible: should be: "atmel,at91sam9260-rtt" +- reg: should encode the memory region of the RTT controller +- interrupts: rtt alarm/event interrupt +- clocks: should contain one clock pointing to the slow clk +- atmel,rtt-rtc-time-reg: should encode the GPBR register used to store + the time base when the RTT is used as an RTC. + The first cell should point to the GPBR node and the second one + encode the offset within the GPBR block (or in other words, the + GPBR register used to store the time base). + + +Example: + +rtt@fffffe00 { + compatible = "atmel,at91sam9260-rtt"; + reg = <0xfffffd20 0x10>; + interrupts = <1 4 7>; + clocks = <&clk32k>; + atmel,rtt-rtc-time-reg = <&gpbr 0x0>; +}; -- 1.9.1