summaryrefslogtreecommitdiff
path: root/Documentation
diff options
context:
space:
mode:
authorEzequiel Garcia <ezequiel.garcia@imgtec.com>2015-07-27 15:02:33 +0100
committerRalf Baechle <ralf@linux-mips.org>2015-09-03 12:08:07 +0200
commitd6ed2b9b60cb03091e0c84c270d145a475606297 (patch)
treeb46c79cf1285ab71f2f4506bb225c05a668cda4d /Documentation
parentfc6a6772f888ee8ab4c5428854f7f1d3abda13df (diff)
Documentation: dt: Add Pistachio SoC general purpose timer binding document
Add a device-tree binding document for the clocksource driver provided by Pistachio SoC general purpose timers. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Reviewed-by: Andrew Bresticker <abrestic@chromium.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: devicetree@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Cc: James Hartley <James.Hartley@imgtec.com> Cc: Govindraj Raja <Govindraj.Raja@imgtec.com> Cc: Damien Horsley <Damien.Horsley@imgtec.com> Cc: James Hogan <James.Hogan@imgtec.com> Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Patchwork: https://patchwork.linux-mips.org/patch/10783/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt b/Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt
new file mode 100644
index 000000000000..7afce80bf6a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt
@@ -0,0 +1,28 @@
+* Pistachio general-purpose timer based clocksource
+
+Required properties:
+ - compatible: "img,pistachio-gptimer".
+ - reg: Address range of the timer registers.
+ - interrupts: An interrupt for each of the four timers
+ - clocks: Should contain a clock specifier for each entry in clock-names
+ - clock-names: Should contain the following entries:
+ "sys", interface clock
+ "slow", slow counter clock
+ "fast", fast counter clock
+ - img,cr-periph: Must contain a phandle to the peripheral control
+ syscon node.
+
+Example:
+ timer: timer@18102000 {
+ compatible = "img,pistachio-gptimer";
+ reg = <0x18102000 0x100>;
+ interrupts = <GIC_SHARED 60 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SHARED 61 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SHARED 62 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SHARED 63 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk_periph PERIPH_CLK_COUNTER_FAST>,
+ <&clk_periph PERIPH_CLK_COUNTER_SLOW>,
+ <&cr_periph SYS_CLK_TIMER>;
+ clock-names = "fast", "slow", "sys";
+ img,cr-periph = <&cr_periph>;
+ };