| Boris BREZILLON | 2c91e61 | 2014-09-23 16:45:12 +0200 | [diff] [blame] | 1 | Atmel AT91SAM9260 Real Time Timer |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible: should be: "atmel,at91sam9260-rtt" |
| 5 | - reg: should encode the memory region of the RTT controller |
| 6 | - interrupts: rtt alarm/event interrupt |
| 7 | - clocks: should contain the 32 KHz slow clk that will drive the RTT block. |
| 8 | - atmel,rtt-rtc-time-reg: should encode the GPBR register used to store |
| 9 | the time base when the RTT is used as an RTC. |
| 10 | The first cell should point to the GPBR node and the second one |
| 11 | encode the offset within the GPBR block (or in other words, the |
| 12 | GPBR register used to store the time base). |
| 13 | |
| 14 | |
| 15 | Example: |
| 16 | |
| 17 | rtt@fffffd20 { |
| 18 | compatible = "atmel,at91sam9260-rtt"; |
| 19 | reg = <0xfffffd20 0x10>; |
| 20 | interrupts = <1 4 7>; |
| 21 | clocks = <&clk32k>; |
| 22 | atmel,rtt-rtc-time-reg = <&gpbr 0x0>; |
| 23 | }; |