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, arnd@arndb.de,
robh@kernel.org, sfr@canb.auug.org.au
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-arch@vger.kernel.org, c-sky_gcc_upstream@c-sky.com,
gnu-csky@mentor.com, green.hu@gmail.com,
Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH V8 6/6] dt-bindings: timer: C-SKY Multi-processor timer
Date: Thu, 20 Sep 2018 13:39:32 +0800 [thread overview]
Message-ID: <6c2373f3a70d817095d15535ebd08f503319b6e2.1537417413.git.ren_guo@c-sky.com> (raw)
In-Reply-To: <cover.1537417413.git.ren_guo@c-sky.com>
In-Reply-To: <cover.1537417413.git.ren_guo@c-sky.com>
- Dt-bingdings doc for C-SKY SMP system setting.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
---
.../devicetree/bindings/timer/csky,mptimer.txt | 46 ++++++++++++++++++++++
1 file changed, 46 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..1e7e31d
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/csky,mptimer.txt
@@ -0,0 +1,46 @@
+============================
+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
+ - interrupt-parent:
+ Usage: required
+ Value type: <node>
+ Definition: must be interrupt controller node
+
+Examples:
+---------
+
+ timer: timer {
+ compatible = "csky,mptimer";
+ clocks = <&dummy_apb_clk>;
+ interrupts = <16>;
+ interrupt-parent = <&intc>;
+ };
--
2.7.4
prev parent reply other threads:[~2018-09-20 5:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 5:39 [PATCH V8 0/6] C-SKY(csky) Linux Kernel Port Guo Ren
2018-09-20 5:39 ` [PATCH V8 1/6] csky/dma: bugfix dma_sync_for_cpu/device Guo Ren
2018-09-20 5:39 ` [PATCH V8 2/6] csky: remove irq_mapping from smp.c Guo Ren
2018-09-20 5:39 ` [PATCH V8 3/6] irqchip: add C-SKY SMP interrupt controller Guo Ren
2018-09-20 5:39 ` [PATCH V8 4/6] dt-bindings: interrupt-controller: C-SKY SMP intc Guo Ren
2018-09-20 5:39 ` [PATCH V8 5/6] clocksource: add C-SKY SMP timer Guo Ren
2018-09-20 5:54 ` Guo Ren
2018-09-20 5:39 ` Guo Ren [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6c2373f3a70d817095d15535ebd08f503319b6e2.1537417413.git.ren_guo@c-sky.com \
--to=ren_guo@c-sky.com \
--cc=arnd@arndb.de \
--cc=c-sky_gcc_upstream@c-sky.com \
--cc=devicetree@vger.kernel.org \
--cc=gnu-csky@mentor.com \
--cc=green.hu@gmail.com \
--cc=jason@lakedaemon.net \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marc.zyngier@arm.com \
--cc=mark.rutland@arm.com \
--cc=robh+dt@kernel.org \
--cc=robh@kernel.org \
--cc=sfr@canb.auug.org.au \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).