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Date: Tue, 3 Jun 2014 09:33:09 +0200
From: Antoine Ténart
<antoine.tenart@...e-electrons.com>
To: sebastian.hesselbarth@...il.com
Cc: Antoine Ténart
<antoine.tenart@...e-electrons.com>,
alexandre.belloni@...e-electrons.com,
thomas.petazzoni@...e-electrons.com, zmxu@...vell.com,
jszhang@...vell.com, linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] ARM: dts: berlin: add I2C nodes for BG2Q
The Marvell Berlin BG2Q has 4 TWSI compatible with the Synopsys
DesignWare I2C driver. Add the corresponding nodes.
The pin-muxing setup is also done here, since there cannot be another
muxing setup if I2C{0,1,2,3} are enabled.
Signed-off-by: Antoine Ténart <antoine.tenart@...e-electrons.com>
---
arch/arm/boot/dts/berlin2q.dtsi | 72 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 635a16a64cb4..0624868e36e3 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -191,6 +191,32 @@
};
};
+ i2c0: i2c@...0 {
+ compatible = "snps,designware-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1400 0x100>;
+ interrupt-parent = <&aic>;
+ interrupts = <4>;
+ clocks = <&chip CLKID_CFG>;
+ pinctrl-0 = <&twsi0_pmux>;
+ pinctrl-names = "default";
+ status = "disabled";
+ };
+
+ i2c1: i2c@...0 {
+ compatible = "snps,designware-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1800 0x100>;
+ interrupt-parent = <&aic>;
+ interrupts = <5>;
+ clocks = <&chip CLKID_CFG>;
+ pinctrl-0 = <&twsi1_pmux>;
+ pinctrl-names = "default";
+ status = "disabled";
+ };
+
timer0: timer@...0 {
compatible = "snps,dw-apb-timer";
reg = <0x2c00 0x14>;
@@ -301,6 +327,16 @@
reg = <0xea0000 0x400>, <0xdd0170 0x10>;
clocks = <&refclk>;
clock-names = "refclk";
+
+ twsi0_pmux: twsi0-pmux {
+ groups = "G6";
+ function = "twsi0";
+ };
+
+ twsi1_pmux: twsi1-pmux {
+ groups = "G7";
+ function = "twsi1";
+ };
};
apb@...000 {
@@ -311,6 +347,32 @@
ranges = <0 0xfc0000 0x10000>;
interrupt-parent = <&sic>;
+ i2c2: i2c@...0 {
+ compatible = "snps,designware-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x7000 0x100>;
+ interrupt-parent = <&sic>;
+ interrupts = <6>;
+ clocks = <&refclk>;
+ pinctrl-0 = <&twsi2_pmux>;
+ pinctrl-names = "default";
+ status = "disabled";
+ };
+
+ i2c3: i2c@...0 {
+ compatible = "snps,designware-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x8000 0x100>;
+ interrupt-parent = <&sic>;
+ interrupts = <7>;
+ clocks = <&refclk>;
+ pinctrl-0 = <&twsi3_pmux>;
+ pinctrl-names = "default";
+ status = "disabled";
+ };
+
uart0: uart@...0 {
compatible = "snps,dw-apb-uart";
reg = <0x9000 0x100>;
@@ -348,6 +410,16 @@
groups = "GSM14";
function = "uart1";
};
+
+ twsi2_pmux: twsi2-pmux {
+ groups = "GSM13";
+ function = "twsi2";
+ };
+
+ twsi3_pmux: twsi3-pmux {
+ groups = "GSM14";
+ function = "twsi3";
+ };
};
sic: interrupt-controller@...0 {
--
1.9.1
--
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