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Message-Id: <20190710134346.30239-2-gregory.clement@bootlin.com>
Date: Wed, 10 Jul 2019 15:43:41 +0200
From: Gregory CLEMENT <gregory.clement@...tlin.com>
To: Stephen Boyd <sboyd@...nel.org>,
Mike Turquette <mturquette@...libre.com>,
linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
Jason Cooper <jason@...edaemon.net>,
Andrew Lunn <andrew@...n.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
Gregory CLEMENT <gregory.clement@...tlin.com>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
linux-arm-kernel@...ts.infradead.org,
Antoine Tenart <antoine.tenart@...tlin.com>,
Miquèl Raynal <miquel.raynal@...tlin.com>,
Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: [PATCH v7 1/6] dt-bindings: ap806: add the cluster clock node in the syscon file
Document the device tree binding for the cluster clock controllers found
in the Armada 7K/8K SoCs.
Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
---
.../arm/marvell/ap806-system-controller.txt | 31 +++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
index 7b8b8eb0191f..4f21c1024073 100644
--- a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
@@ -21,8 +21,8 @@ Clocks:
The Device Tree node representing the AP806 system controller provides
a number of clocks:
- - 0: clock of CPU cluster 0
- - 1: clock of CPU cluster 1
+ - 0: reference clock of CPU cluster 0
+ - 1: reference clock of CPU cluster 1
- 2: fixed PLL at 1200 Mhz
- 3: MSS clock, derived from the fixed PLL
@@ -143,3 +143,30 @@ ap_syscon1: system-controller@...000 {
#thermal-sensor-cells = <1>;
};
};
+
+Cluster clocks:
+---------------
+
+Device Tree Clock bindings for cluster clock of AP806 Marvell. Each
+cluster contain up to 2 CPUs running at the same frequency.
+
+Required properties:
+- compatible: must be "marvell,ap806-cpu-clock";
+- #clock-cells : should be set to 1.
+
+- clocks : shall be the input parent clock(s) phandle for the clock
+ (one per cluster)
+
+- reg: register range associated with the cluster clocks
+
+ap_syscon1: system-controller@...000 {
+ compatible = "marvell,armada-ap806-syscon1", "syscon", "simple-mfd";
+ reg = <0x6f8000 0x1000>;
+
+ cpu_clk: clock-cpu@278 {
+ compatible = "marvell,ap806-cpu-clock";
+ clocks = <&ap_clk 0>, <&ap_clk 1>;
+ #clock-cells = <1>;
+ reg = <0x278 0xa30>;
+ };
+};
--
2.20.1
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