linux-kernel - [PATCH] arm: dts: Beaglebone i2c definitions

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Message-Id: <1431504274-32084-1-git-send-email-pantelis.antoniou@konsulko.com>
Date:	Wed, 13 May 2015 11:04:34 +0300
From:	Pantelis Antoniou <pantelis.antoniou@...sulko.com>
To:	Benoit Cousson <bcousson@...libre.com>
Cc:	Tony Lindgren <tony@...mide.com>,
	Rob Herring <robherring2@...il.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Matt Porter <mporter@...sulko.com>,
	Koen Kooi <koen@...inion.thruhere.net>,
	Robert Nelson <robertcnelson@...il.com>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	devicetree@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
	Pantelis Antoniou <panto@...oniou-consulting.com>
Subject: [PATCH] arm: dts: Beaglebone i2c definitions

The beaglebone family of boards contain two I2C busses enabled.
The first one with a baseboard identification EEPROM and a
cape I2C bus.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@...sulko.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 66 +++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index c3255e0..236b7db 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -81,6 +81,13 @@
 		>;
 	};
 
+	i2c2_pins: pinmux_i2c2_pins {
+		pinctrl-single,pins = <
+			0x178 (PIN_INPUT_PULLUP | MUX_MODE3)	/* uart1_ctsn.i2c2_sda */
+			0x17c (PIN_INPUT_PULLUP | MUX_MODE3)	/* uart1_rtsn.i2c2_scl */
+		>;
+	};
+
 	uart0_pins: pinmux_uart0_pins {
 		pinctrl-single,pins = <
 			0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
@@ -218,8 +225,67 @@
 		reg = <0x24>;
 	};
 
+	baseboard_eeprom: baseboard_eeprom@50 {
+		compatible = "at,24c256";
+		reg = <0x50>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		baseboard_data: baseboard_data@0 {
+			reg = <0 0x100>;
+		};
+	};
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+
+	status = "okay";
+	clock-frequency = <100000>;
+
+	cape_eeprom0: cape_eeprom0@54 {
+		compatible = "at,24c256";
+		reg = <0x54>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		cape0_data: cape_data@0 {
+			reg = <0 0x100>;
+		};
+	};
+
+	cape_eeprom1: cape_eeprom1@55 {
+		compatible = "at,24c256";
+		reg = <0x55>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		cape1_data: cape_data@0 {
+			reg = <0 0x100>;
+		};
+	};
+
+	cape_eeprom2: cape_eeprom2@56 {
+		compatible = "at,24c256";
+		reg = <0x56>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		cape2_data: cape_data@0 {
+			reg = <0 0x100>;
+		};
+	};
+
+	cape_eeprom3: cape_eeprom3@57 {
+		compatible = "at,24c256";
+		reg = <0x57>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		cape3_data: cape_data@0 {
+			reg = <0 0x100>;
+		};
+	};
 };
 
+
 /include/ "tps65217.dtsi"
 
 &tps {
-- 
1.7.12

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