143 lines
3.4 KiB
Diff
143 lines
3.4 KiB
Diff
From e3c9bd680440e6216a86184687968a3939c06160 Mon Sep 17 00:00:00 2001
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From: Pantelis Antoniou <panto@antoniou-consulting.com>
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Date: Fri, 28 Jun 2013 18:39:55 +0300
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Subject: [PATCH 2/4] dts: beaglebone: Add I2C definitions for EEPROMs & capes
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Add the I2C definitions for the EEPROM devices on the baseboard
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and on the possibly connected capes.
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Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
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---
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arch/arm/boot/dts/am335x-bone.dts | 44 ++++++++++++++++++++++++++++++++++
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arch/arm/boot/dts/am335x-boneblack.dts | 44 ++++++++++++++++++++++++++++++++++
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2 files changed, 88 insertions(+)
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diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
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index b8debea..15c9643 100644
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--- a/arch/arm/boot/dts/am335x-bone.dts
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+++ b/arch/arm/boot/dts/am335x-bone.dts
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@@ -110,6 +110,18 @@
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0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
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>;
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};
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+ i2c0_pins: pinmux_i2c0_pins {
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+ pinctrl-single,pins = <
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+ 0x188 0x70 /* i2c0_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
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+ 0x18c 0x70 /* i2c0_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
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+ >;
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+ };
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+ i2c2_pins: pinmux_i2c2_pins {
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+ pinctrl-single,pins = <
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+ 0x178 0x73 /* uart1_ctsn.i2c2_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 */
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+ 0x17c 0x73 /* uart1_rtsn.i2c2_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 */
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+ >;
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+ };
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};
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ocp {
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@@ -131,7 +143,39 @@
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reg = <0x24>;
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};
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+ baseboard_eeprom: baseboard_eeprom@50 {
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+ compatible = "at,24c256";
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+ reg = <0x50>;
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+ };
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};
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+
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+ i2c2: i2c@4819c000 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c2_pins>;
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+ status = "okay";
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+ clock-frequency = <100000>;
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+
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+ cape_eeprom0: cape_eeprom0@54 {
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+ compatible = "at,24c256";
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+ reg = <0x54>;
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+ };
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+
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+ cape_eeprom1: cape_eeprom1@55 {
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+ compatible = "at,24c256";
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+ reg = <0x55>;
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+ };
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+
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+ cape_eeprom2: cape_eeprom2@56 {
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+ compatible = "at,24c256";
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+ reg = <0x56>;
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+ };
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+
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+ cape_eeprom3: cape_eeprom3@57 {
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+ compatible = "at,24c256";
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+ reg = <0x57>;
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+ };
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+ };
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+
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};
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leds {
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diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
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index 75a924d..9e453b6 100644
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--- a/arch/arm/boot/dts/am335x-boneblack.dts
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+++ b/arch/arm/boot/dts/am335x-boneblack.dts
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@@ -140,6 +140,19 @@
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0x50 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a4.gpio1_20 */
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>;
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};
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+
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+ i2c0_pins: pinmux_i2c0_pins {
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+ pinctrl-single,pins = <
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+ 0x188 0x70 /* i2c0_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
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+ 0x18c 0x70 /* i2c0_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE0 */
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+ >;
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+ };
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+ i2c2_pins: pinmux_i2c2_pins {
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+ pinctrl-single,pins = <
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+ 0x178 0x73 /* uart1_ctsn.i2c2_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 */
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+ 0x17c 0x73 /* uart1_rtsn.i2c2_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 */
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+ >;
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+ };
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};
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ocp {
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@@ -161,6 +174,37 @@
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reg = <0x24>;
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};
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+ baseboard_eeprom: baseboard_eeprom@50 {
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+ compatible = "at,24c256";
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+ reg = <0x50>;
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+ };
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+ };
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+
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+ i2c2: i2c@4819c000 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c2_pins>;
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+ status = "okay";
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+ clock-frequency = <100000>;
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+
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+ cape_eeprom0: cape_eeprom0@54 {
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+ compatible = "at,24c256";
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+ reg = <0x54>;
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+ };
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+
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+ cape_eeprom1: cape_eeprom1@55 {
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+ compatible = "at,24c256";
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+ reg = <0x55>;
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+ };
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+
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+ cape_eeprom2: cape_eeprom2@56 {
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+ compatible = "at,24c256";
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+ reg = <0x56>;
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+ };
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+
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+ cape_eeprom3: cape_eeprom3@57 {
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+ compatible = "at,24c256";
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+ reg = <0x57>;
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+ };
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};
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};
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--
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1.8.2.1
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