From: <yuantian.tang@nxp.com>
To: <mturquette@baylibre.com>
Cc: <sboyd@codeaurora.org>, <robh+dt@kernel.org>,
<mark.rutland@arm.com>, <linux-clk@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
"Tang Yuantian" <Yuantian.Tang@nxp.com>,
Scott Wood <oss@buserror.net>,
"Tang Yuantian" <yuantian.tang@nxp.com>
Subject: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk
Date: Wed, 15 Feb 2017 13:47:35 +0800 [thread overview]
Message-ID: <1487137656-4006-1-git-send-email-yuantian.tang@nxp.com> (raw)
From: Tang Yuantian <Yuantian.Tang@nxp.com>
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>
Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com>
---
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
--
2.1.0.27.g96db324
next reply other threads:[~2017-02-15 6:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-15 5:47 yuantian.tang [this message]
2017-02-15 5:47 ` [PATCH 2/2] clk: qoriq: Separate root input clock for core PLLs on ls1012a yuantian.tang
2017-02-15 18:36 ` Scott Wood
2017-02-16 2:21 ` Y.T. Tang
2017-02-27 2:19 ` [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk Y.T. Tang
2017-02-27 17:18 ` Rob Herring
2017-03-01 1:45 ` Y.T. Tang
2017-03-01 23:17 ` Rob Herring
2017-03-09 8:46 ` Y.T. Tang
2017-07-21 22:03 ` sboyd
2017-07-24 1:20 ` Andy Tang
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