Afzal Mohammed | 9e0344d | 2012-12-17 16:02:15 -0800 | [diff] [blame] | 1 | TI Real Time Clock |
| 2 | |
| 3 | Required properties: |
Hebbar Gururaja | 8af750e | 2013-09-11 14:24:18 -0700 | [diff] [blame] | 4 | - compatible: |
| 5 | - "ti,da830-rtc" - for RTC IP used similar to that on DA8xx SoC family. |
| 6 | - "ti,am3352-rtc" - for RTC IP used similar to that on AM335x SoC family. |
| 7 | This RTC IP has special WAKE-EN Register to enable |
Johan Hovold | 222a12f | 2014-12-10 15:53:13 -0800 | [diff] [blame] | 8 | Wakeup generation for event Alarm. It can also be |
| 9 | used to control an external PMIC via the |
| 10 | pmic_power_en pin. |
Keerthy | 05743b3 | 2015-08-07 10:37:19 +0530 | [diff] [blame] | 11 | - "ti,am4372-rtc" - for RTC IP used similar to that on AM437X SoC family. |
Afzal Mohammed | 9e0344d | 2012-12-17 16:02:15 -0800 | [diff] [blame] | 12 | - reg: Address range of rtc register set |
| 13 | - interrupts: rtc timer, alarm interrupts in order |
| 14 | - interrupt-parent: phandle for the interrupt controller |
| 15 | |
Johan Hovold | 222a12f | 2014-12-10 15:53:13 -0800 | [diff] [blame] | 16 | Optional properties: |
Johan Hovold | 094d3ee | 2014-12-10 15:54:14 -0800 | [diff] [blame] | 17 | - system-power-controller: whether the rtc is controlling the system power |
Johan Hovold | 222a12f | 2014-12-10 15:53:13 -0800 | [diff] [blame] | 18 | through pmic_power_en |
Keerthy | fff51e7 | 2015-08-18 15:11:14 +0530 | [diff] [blame] | 19 | - clocks: Any internal or external clocks feeding in to rtc |
| 20 | - clock-names: Corresponding names of the clocks |
Marcin Niestroj | 97ea190 | 2016-09-16 11:26:28 +0200 | [diff] [blame] | 21 | - pinctrl-0: a phandle pointing to the pin settings for the device |
| 22 | - pinctrl-names: should be "default" |
| 23 | |
| 24 | Optional subnodes: |
| 25 | - generic pinctrl node |
| 26 | |
| 27 | Required pinctrl subnodes properties: |
| 28 | - pins - Names of ext_wakeup pins to configure |
| 29 | |
| 30 | Optional pinctrl subnodes properties: |
| 31 | - input-enable - Enables ext_wakeup |
| 32 | - ti,active-high - Set input active high (by default active low) |
Johan Hovold | 222a12f | 2014-12-10 15:53:13 -0800 | [diff] [blame] | 33 | |
Afzal Mohammed | 9e0344d | 2012-12-17 16:02:15 -0800 | [diff] [blame] | 34 | Example: |
| 35 | |
| 36 | rtc@1c23000 { |
| 37 | compatible = "ti,da830-rtc"; |
| 38 | reg = <0x23000 0x1000>; |
| 39 | interrupts = <19 |
| 40 | 19>; |
| 41 | interrupt-parent = <&intc>; |
Johan Hovold | 094d3ee | 2014-12-10 15:54:14 -0800 | [diff] [blame] | 42 | system-power-controller; |
Keerthy | fff51e7 | 2015-08-18 15:11:14 +0530 | [diff] [blame] | 43 | clocks = <&clk_32k_rtc>, <&clk_32768_ck>; |
| 44 | clock-names = "ext-clk", "int-clk"; |
Marcin Niestroj | 97ea190 | 2016-09-16 11:26:28 +0200 | [diff] [blame] | 45 | |
| 46 | pinctrl-0 = <&ext_wakeup>; |
| 47 | pinctrl-names = "default"; |
| 48 | |
| 49 | ext_wakeup: ext-wakeup { |
| 50 | pins = "ext_wakeup0"; |
| 51 | input-enable; |
| 52 | ti,active-high; |
| 53 | }; |
Afzal Mohammed | 9e0344d | 2012-12-17 16:02:15 -0800 | [diff] [blame] | 54 | }; |