From e3c9bd680440e6216a86184687968a3939c06160 Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <panto@antoniou-consulting.com>
Date: Fri, 28 Jun 2013 18:39:55 +0300
Subject: [PATCH 2/4] dts: beaglebone: Add I2C definitions for EEPROMs & capes
Add the I2C definitions for the EEPROM devices on the baseboard
and on the possibly connected capes.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
---
arch/arm/boot/dts/am335x-bone.dts | 44 ++++++++++++++++++++++++++++++++++
arch/arm/boot/dts/am335x-boneblack.dts | 44 ++++++++++++++++++++++++++++++++++
2 files changed, 88 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index b8debea..15c9643 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -110,6 +110,18 @@
0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};
+ i2c0_pins: pinmux_i2c0_pins {
+ pinctrl-single,pins = <
+ 0x188 0x70 /* i2c0_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
+ 0x18c 0x70 /* i2c0_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
+ >;
+ };
+ i2c2_pins: pinmux_i2c2_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 {
@@ -131,7 +143,39 @@
reg = <0x24>;
};
+ baseboard_eeprom: baseboard_eeprom@50 {
+ compatible = "at,24c256";
+ reg = <0x50>;
+ };
};
+
+ i2c2: i2c@4819c000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins>;
+ status = "okay";
+ clock-frequency = <100000>;
+
+ cape_eeprom0: cape_eeprom0@54 {
+ compatible = "at,24c256";
+ reg = <0x54>;
+ };
+
+ cape_eeprom1: cape_eeprom1@55 {
+ compatible = "at,24c256";
+ reg = <0x55>;
+ };
+
+ cape_eeprom2: cape_eeprom2@56 {
+ compatible = "at,24c256";
+ reg = <0x56>;
+ };
+
+ cape_eeprom3: cape_eeprom3@57 {
+ compatible = "at,24c256";
+ reg = <0x57>;
+ };
+ };
+
};
leds {
diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 75a924d..9e453b6 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -140,6 +140,19 @@
0x50 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a4.gpio1_20 */
>;
};
+
+ i2c0_pins: pinmux_i2c0_pins {
+ pinctrl-single,pins = <
+ 0x188 0x70 /* i2c0_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
+ 0x18c 0x70 /* i2c0_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
+ >;
+ };
+ i2c2_pins: pinmux_i2c2_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 {
@@ -161,6 +174,37 @@
reg = <0x24>;
};
+ baseboard_eeprom: baseboard_eeprom@50 {
+ compatible = "at,24c256";
+ reg = <0x50>;
+ };
+ };
+
+ i2c2: i2c@4819c000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins>;
+ status = "okay";
+ clock-frequency = <100000>;
+
+ cape_eeprom0: cape_eeprom0@54 {
+ compatible = "at,24c256";
+ reg = <0x54>;
+ };
+
+ cape_eeprom1: cape_eeprom1@55 {
+ compatible = "at,24c256";
+ reg = <0x55>;
+ };
+
+ cape_eeprom2: cape_eeprom2@56 {
+ compatible = "at,24c256";
+ reg = <0x56>;
+ };
+
+ cape_eeprom3: cape_eeprom3@57 {
+ compatible = "at,24c256";
+ reg = <0x57>;
+ };
};
};
--
1.8.2.1