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authorLinus Torvalds <torvalds@linux-foundation.org>2018-11-04 08:15:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-11-04 08:15:15 -0800
commit35e7452442687d7bd70f042ddfa92f89311b039c (patch)
tree01c5c4005da691dbf1c53ce1fb1dfee51f6b6301 /Documentation
parent04578e8441c5420259a71eff9fede535858bfc6a (diff)
parentbff9a1076adfb787036ced707fc28cfa578aee99 (diff)
downloadlinux-35e7452442687d7bd70f042ddfa92f89311b039c.tar.gz
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more timer updates from Thomas Gleixner:
 "A set of commits for the new C-SKY architecture timers"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  dt-bindings: timer: gx6605s SOC timer
  clocksource/drivers/c-sky: Add gx6605s SOC system timer
  dt-bindings: timer: C-SKY Multi-processor timer
  clocksource/drivers/c-sky: Add C-SKY SMP timer
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/timer/csky,gx6605s-timer.txt42
-rw-r--r--Documentation/devicetree/bindings/timer/csky,mptimer.txt42
2 files changed, 84 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/timer/csky,gx6605s-timer.txt b/Documentation/devicetree/bindings/timer/csky,gx6605s-timer.txt
new file mode 100644
index 000000000000..6b04344f4bea
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/csky,gx6605s-timer.txt
@@ -0,0 +1,42 @@
+=================
+gx6605s SOC Timer
+=================
+
+The timer is used in gx6605s soc as system timer and the driver
+contain clk event and clk source.
+
+==============================
+timer node bindings definition
+==============================
+
+	Description: Describes gx6605s SOC timer
+
+	PROPERTIES
+
+	- compatible
+		Usage: required
+		Value type: <string>
+		Definition: must be "csky,gx6605s-timer"
+	- reg
+		Usage: required
+		Value type: <u32 u32>
+		Definition: <phyaddr size> in soc from cpu view
+	- clocks
+		Usage: required
+		Value type: phandle + clock specifier cells
+		Definition: must be input clk node
+	- interrupt
+		Usage: required
+		Value type: <u32>
+		Definition: must be timer irq num defined by soc
+
+Examples:
+---------
+
+	timer0: timer@20a000 {
+		compatible = "csky,gx6605s-timer";
+		reg = <0x0020a000 0x400>;
+		clocks = <&dummy_apb_clk>;
+		interrupts = <10>;
+		interrupt-parent = <&intc>;
+	};
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>;
+	};