From: Guo Ren <ren_guo@c-sky.com>
To: tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com,
robh+dt@kernel.org, mark.rutland@arm.com,
daniel.lezcano@linaro.org, will.deacon@arm.com,
jhogan@kernel.org, paul.burton@mips.com, peterz@infradead.org,
arnd@arndb.de
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH V11 6/8] dt-bindings: timer: C-SKY Multi-processor timer
Date: Tue, 9 Oct 2018 22:41:33 +0800 [thread overview]
Message-ID: <47ead8f3b9c1d29d4e7f960e0e07ca0f0d0787c7.1539095312.git.ren_guo@c-sky.com> (raw)
In-Reply-To: <cover.1539095311.git.ren_guo@c-sky.com>
In-Reply-To: <cover.1539095311.git.ren_guo@c-sky.com>
Dt-bingdings doc for C-SKY SMP system setting.
Changelog:
- Drop the interrupt-parent.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/timer/csky,mptimer.txt | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 Documentation/devicetree/bindings/timer/csky,mptimer.txt
diff --git a/Documentation/devicetree/bindings/timer/csky,mptimer.txt b/Documentation/devicetree/bindings/timer/csky,mptimer.txt
new file mode 100644
index 0000000..15cfec0
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/csky,mptimer.txt
@@ -0,0 +1,42 @@
+============================
+C-SKY Multi-processors Timer
+============================
+
+C-SKY multi-processors timer is designed for C-SKY SMP system and the
+regs is accessed by cpu co-processor 4 registers with mtcr/mfcr.
+
+ - PTIM_CTLR "cr<0, 14>" Control reg to start reset timer.
+ - PTIM_TSR "cr<1, 14>" Interrupt cleanup status reg.
+ - PTIM_CCVR "cr<3, 14>" Current counter value reg.
+ - PTIM_LVR "cr<6, 14>" Window value reg to triger next event.
+
+==============================
+timer node bindings definition
+==============================
+
+ Description: Describes SMP timer
+
+ PROPERTIES
+
+ - compatible
+ Usage: required
+ Value type: <string>
+ Definition: must be "csky,mptimer"
+ - clocks
+ Usage: required
+ Value type: <node>
+ Definition: must be input clk node
+ - interrupts
+ Usage: required
+ Value type: <u32>
+ Definition: must be timer irq num defined by soc
+
+Examples:
+---------
+
+ timer: timer {
+ compatible = "csky,mptimer";
+ clocks = <&dummy_apb_clk>;
+ interrupts = <16>;
+ interrupt-parent = <&intc>;
+ };
--
2.7.4
next prev parent reply other threads:[~2018-10-09 14:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-09 14:41 [PATCH V11 0/8] C-SKY(csky) Linux Kernel Driver Guo Ren
2018-10-09 14:41 ` [PATCH V11 1/8] irqchip: add C-SKY SMP interrupt controller Guo Ren
2018-10-09 15:11 ` Marc Zyngier
2018-10-12 3:21 ` Guo Ren
2018-10-09 14:41 ` [PATCH V11 2/8] dt-bindings: interrupt-controller: C-SKY SMP intc Guo Ren
2018-10-09 14:41 ` [PATCH V11 3/8] irqchip: add C-SKY APB bus interrupt controller Guo Ren
2018-10-09 14:41 ` [PATCH V11 4/8] dt-bindings: interrupt-controller: C-SKY APB intc Guo Ren
2018-10-09 14:41 ` [PATCH V11 5/8] clocksource: add C-SKY SMP timer Guo Ren
2018-10-09 14:41 ` Guo Ren [this message]
2018-10-09 14:41 ` [PATCH V11 7/8] clocksource: add gx6605s SOC system timer Guo Ren
2018-10-09 14:41 ` [PATCH V11 8/8] dt-bindings: timer: gx6605s SOC timer Guo Ren
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