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author | Thomas Gleixner | 2018-11-02 21:58:39 +0100 |
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committer | Thomas Gleixner | 2018-11-02 21:58:39 +0100 |
commit | bff9a1076adfb787036ced707fc28cfa578aee99 (patch) | |
tree | fd9acd5eda2ab28189536a43266e763d2c05f50e /Documentation/devicetree/bindings/timer/csky,mptimer.txt | |
parent | Merge tag 'for-linus-20180929' of git://git.kernel.dk/linux-block (diff) | |
parent | dt-bindings: timer: gx6605s SOC timer (diff) | |
download | kernel-qcow2-linux-bff9a1076adfb787036ced707fc28cfa578aee99.tar.gz kernel-qcow2-linux-bff9a1076adfb787036ced707fc28cfa578aee99.tar.xz kernel-qcow2-linux-bff9a1076adfb787036ced707fc28cfa578aee99.zip |
Merge branch 'clockevents/4.20-rc1' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
Pull clockevent update from Daniel Lezcano:
- Add the per cpu timer for the c-sky architecture (Guo Ren)
- Add the global timer for the c-sky architecture (Guo Ren)
Diffstat (limited to 'Documentation/devicetree/bindings/timer/csky,mptimer.txt')
-rw-r--r-- | Documentation/devicetree/bindings/timer/csky,mptimer.txt | 42 |
1 files changed, 42 insertions, 0 deletions
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>; + }; |