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Message-Id: <1370619743-15245-3-git-send-email-gregory.clement@free-electrons.com>
Date: Fri, 7 Jun 2013 17:42:23 +0200
From: Gregory CLEMENT <gregory.clement@...e-electrons.com>
To: Wolfram Sang <wsa@...-dreams.de>, linux-i2c@...r.kernel.org
Cc: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
linux-arm-kernel@...ts.infradead.org,
Jason Cooper <jason@...edaemon.net>,
Andrew Lunn <andrew@...n.ch>,
Gregory CLEMENT <gregory.clement@...e-electrons.com>,
Nicolas Pitre <nico@...xnic.net>,
Lior Amsalem <alior@...vell.com>,
Maen Suleiman <maen@...vell.com>,
Tawfik Bayouk <tawfik@...vell.com>,
Shadi Ammouri <shadi@...vell.com>,
Eran Ben-Avi <benavi@...vell.com>,
Yehuda Yitschak <yehuday@...vell.com>,
Nadav Haklai <nadavh@...vell.com>,
Ike Pan <ike.pan@...onical.com>,
Chris Van Hoof <vanhoof@...onical.com>,
Dan Frazier <dann.frazier@...onical.com>,
Leif Lindholm <leif.lindholm@....com>,
Jon Masters <jcm@...hat.com>,
David Marlin <dmarlin@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] ARM: dts: mvebu: Add the i2c-bridge capability to the mv64xxx-i2c
The mv64xxx-i2c embedded in the Armada XP have a new feature called
i2c-bridge. This commit split the i2c information into armada-370.dtsi
and armada-xp.dtsi. Most of the data remains the same and stay in the
common file Armada-370-xp.dtsi. With this new feature the size of the
registers are bigger for Armada XP and for this SoCs we add a new flag
for the i2c-bridge capability.
The Device Tree binding documentation is updated accordingly.
Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
---
Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 6 ++++++
arch/arm/boot/dts/armada-370-xp.dtsi | 2 --
arch/arm/boot/dts/armada-370.dtsi | 8 ++++++++
arch/arm/boot/dts/armada-xp.dtsi | 10 ++++++++++
4 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
index f46d928..8ede3e7 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
@@ -8,6 +8,12 @@ Required properties :
- interrupts : The interrupt number
- clock-frequency : Desired I2C bus clock frequency in Hz.
+Optional properties :
+
+- i2c,i2c-bridge : This flag indicate that the i2c controller have the
+ Transaction Generator support and we want to use it. Not all the
+ mv64xxx controller have this feature.
+
Examples:
i2c@...00 {
diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index 550eb77..b6f475c 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -112,7 +112,6 @@
i2c0: i2c@...00 {
compatible = "marvell,mv64xxx-i2c";
- reg = <0x11000 0x20>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <31>;
@@ -123,7 +122,6 @@
i2c1: i2c@...00 {
compatible = "marvell,mv64xxx-i2c";
- reg = <0x11100 0x20>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <32>;
diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
index aee2b18..39b26d6 100644
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -155,6 +155,14 @@
};
};
+ i2c0: i2c@...00 {
+ reg = <0x11000 0x20>;
+ };
+
+ i2c1: i2c@...00 {
+ reg = <0x11100 0x20>;
+ };
+
usb@...00 {
clocks = <&coreclk 0>;
};
diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi
index 5b902f9..db36bfb 100644
--- a/arch/arm/boot/dts/armada-xp.dtsi
+++ b/arch/arm/boot/dts/armada-xp.dtsi
@@ -134,6 +134,16 @@
};
};
+ i2c0: i2c@...00 {
+ reg = <0x11000 0x100>;
+ i2c,i2c-bridge;
+ };
+
+ i2c1: i2c@...00 {
+ reg = <0x11100 0x100>;
+ i2c,i2c-bridge;
+ };
+
usb@...00 {
clocks = <&gateclk 18>;
};
--
1.8.1.2
--
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