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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-11-04 08:15:15 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-11-04 08:15:15 -0800 |
commit | 35e7452442687d7bd70f042ddfa92f89311b039c (patch) | |
tree | 01c5c4005da691dbf1c53ce1fb1dfee51f6b6301 /Documentation/devicetree/bindings/timer/csky,mptimer.txt | |
parent | 04578e8441c5420259a71eff9fede535858bfc6a (diff) | |
parent | bff9a1076adfb787036ced707fc28cfa578aee99 (diff) | |
download | linux-0-day-35e7452442687d7bd70f042ddfa92f89311b039c.tar.gz linux-0-day-35e7452442687d7bd70f042ddfa92f89311b039c.tar.xz |
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/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 0000000000000..15cfec08fbb8e --- /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>; + }; |