Commit-ID: 732e5dca374d764bd9711c8c121b0e18ff92985e
Gitweb: https://git.kernel.org/tip/732e5dca374d764bd9711c8c121b0e18ff92985e
Author: Guo Ren <ren_guo@xxxxxxxxx>
AuthorDate: Sat, 3 Nov 2018 00:51:29 +0800
Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitDate: Fri, 2 Nov 2018 19:41:05 +0100
dt-bindings: timer: C-SKY Multi-processor timer
Dt-bingdings doc for C-SKY SMP system setting.
Signed-off-by: Guo Ren <ren_guo@xxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
.../devicetree/bindings/timer/csky,mptimer.txt | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/Documentation/devicetree/bindings/timer/csky,mptimer.txt b/Documentation/devicetree/bindings/timer/csky,mptimer.txt
new file mode 100644
index 000000000000..15cfec08fbb8
--- /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>;
+ };
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