[1/2] arm/dts: AM33XX: I2C DT bindings for the bone.

Commit Message

Pantelis Antoniou Sept. 19, 2012, 4:07 p.m. UTC

Add I2C DT bindings for the beaglebone.
This includes bindings for the EEPROMs on both I2C busses.

Note that this requires a pinmux node in am33xx.dtsi,
introduced from 47acae37fa0d11dd8fba58f8825ac3a2baeab903
"arm/dts: AM33XX: Add basic pinctrl device tree data"

Signed-off-by: Pantelis Antoniou <[e-mail]>
---
 arch/arm/boot/dts/am335x-bone.dts | 43 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

Patch

diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 91eee97..ce19ea0 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -24,7 +24,17 @@ 
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
+	am3358_pinmux: pinmux@44e10800 {
+		i2c3_pins: pinmux_i2c3_pins {
+			pinctrl-single,pins = <
+				0x178 0x73 	/* uart1_ctsn.i2c2_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 */
+				0x17c 0x73	/* uart1_rtsn.i2c2_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 */
+			>;
+		};
+	};
+
 	ocp {
+
 		uart1: serial@44e09000 {
 			status = "okay";
 		};
@@ -37,6 +47,39 @@ 
 				reg = <0x24>;
 			};
 
+			baseboard_eeprom: baseboard_eeprom@50 {
+				compatible = "at,24c256";
+				reg = <0x50>;
+			};
+
+		};
+
+		i2c3: i2c@4819c000 {
+			status = "okay";
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c3_pins>;
+
+			clock-frequency = <100000>;
+
+			cape_eeprom_0: cape_eeprom_0@54 {
+				compatible = "at,24c256";
+				reg = <0x54>;
+			};
+
+			cape_eeprom_1: cape_eeprom_1@55 {
+				compatible = "at,24c256";
+				reg = <0x55>;
+			};
+
+			cape_eeprom_2: cape_eeprom_2@56 {
+				compatible = "at,24c256";
+				reg = <0x56>;
+			};
+
+			cape_eeprom_3: cape_eeprom_3@57 {
+				compatible = "at,24c256";
+				reg = <0x57>;
+			};
 		};
 	};
 };