| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | * Device tree bindings for Texas Instruments DaVinci timer |
| 2 | |
| 3 | This document provides bindings for the 64-bit timer in the DaVinci |
| 4 | architecture devices. The timer can be configured as a general-purpose 64-bit |
| 5 | timer, dual general-purpose 32-bit timers. When configured as dual 32-bit |
| 6 | timers, each half can operate in conjunction (chain mode) or independently |
| 7 | (unchained mode) of each other. |
| 8 | |
| 9 | The timer is a free running up-counter and can generate interrupts when the |
| 10 | counter reaches preset counter values. |
| 11 | |
| 12 | Also see ../watchdog/davinci-wdt.txt for timers that are configurable as |
| 13 | watchdog timers. |
| 14 | |
| 15 | Required properties: |
| 16 | |
| 17 | - compatible : should be "ti,da830-timer". |
| 18 | - reg : specifies base physical address and count of the registers. |
| 19 | - interrupts : interrupts generated by the timer. |
| 20 | - interrupt-names: should be "tint12", "tint34", "cmpint0", "cmpint1", |
| 21 | "cmpint2", "cmpint3", "cmpint4", "cmpint5", "cmpint6", |
| 22 | "cmpint7" ("cmpintX" may be omitted if not present in the |
| 23 | hardware). |
| 24 | - clocks : the clock feeding the timer clock. |
| 25 | |
| 26 | Example: |
| 27 | |
| 28 | clocksource: timer@20000 { |
| 29 | compatible = "ti,da830-timer"; |
| 30 | reg = <0x20000 0x1000>; |
| 31 | interrupts = <21>, <22>, <74>, <75>, <76>, <77>, <78>, <79>, |
| 32 | <80>, <81>; |
| 33 | interrupt-names = "tint12", "tint34", "cmpint0", "cmpint1", |
| 34 | "cmpint2", "cmpint3", "cmpint4", "cmpint5", |
| 35 | "cmpint6", "cmpint7"; |
| 36 | clocks = <&pll0_auxclk>; |
| 37 | }; |