From: oss@buserror.net (Scott Wood)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] dt-bindings: qoriq-clock: Add coreclk
Date: Wed, 25 Jan 2017 02:19:21 -0600 [thread overview]
Message-ID: <1485332363-8434-1-git-send-email-oss@buserror.net> (raw)
ls1012a has separate input root clocks for core PLLs versus the platform
PLL, with the latter described as sysclk in the hw docs.
Update the qoriq-clock binding to allow a second input clock, named
"coreclk". If present, this clock will be used for the core PLLs.
Signed-off-by: Scott Wood <oss@buserror.net>
Cc: devicetree at vger.kernel.org
---
Documentation/devicetree/bindings/clock/qoriq-clock.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/qoriq-clock.txt b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
index df9cb5a..97a9666 100644
--- a/Documentation/devicetree/bindings/clock/qoriq-clock.txt
+++ b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
@@ -55,6 +55,11 @@ Optional properties:
- clocks: If clock-frequency is not specified, sysclk may be provided
as an input clock. Either clock-frequency or clocks must be
provided.
+ A second input clock, called "coreclk", may be provided if
+ core PLLs are based on a different input clock from the
+ platform PLL.
+- clock-names: Required if a coreclk is present. Valid names are
+ "sysclk" and "coreclk".
2. Clock Provider
@@ -71,6 +76,7 @@ second cell is the clock index for the specified type.
2 hwaccel index (n in CLKCGnHWACSR)
3 fman 0 for fm1, 1 for fm2
4 platform pll 0=pll, 1=pll/2, 2=pll/3, 3=pll/4
+ 5 coreclk must be 0
3. Example
--
2.7.4
next reply other threads:[~2017-01-25 8:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-25 8:19 Scott Wood [this message]
2017-01-25 8:19 ` [PATCH 2/3] arm64: dts: ls1012a: Add coreclk Scott Wood
2017-01-28 1:36 ` Shawn Guo
2017-01-25 8:19 ` [PATCH 3/3] clk: qoriq: Separate root input clock for core PLLs on ls1012a Scott Wood
2017-01-27 22:38 ` [PATCH 1/3] dt-bindings: qoriq-clock: Add coreclk Rob Herring
2017-01-27 23:51 ` Scott Wood
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