From 4ce8d34563d3be663ab72612980d6f2dbe89f125 Mon Sep 17 00:00:00 2001
From: Victor Dodon <printesoi@chromium.org>
Date: Tue, 16 Feb 2016 12:02:37 -0800
Subject: [PATCH 3/9] enable and configure i2c-1

---
 arch/arm/boot/dts/am335x-bone-pinmux-i2c-1.dtsi | 38 +++++++++++++++++++++++++
 arch/arm/boot/dts/am335x-bone.dts               |  2 ++
 2 files changed, 40 insertions(+)
 create mode 100644 arch/arm/boot/dts/am335x-bone-pinmux-i2c-1.dtsi

diff --git a/arch/arm/boot/dts/am335x-bone-pinmux-i2c-1.dtsi b/arch/arm/boot/dts/am335x-bone-pinmux-i2c-1.dtsi
new file mode 100644
index 0000000..b7b9818
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-bone-pinmux-i2c-1.dtsi
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <dt-bindings/board/am335x-bbw-bbb-base.h>
+
+/* For cape universal, a supported mode needs to be added for each pin in
+ * am335x-bone-common-universal.dtsi */
+
+/* Standard */
+
+&am33xx_pinmux {
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			/* spi0_d1.i2c1_sda 0x158 */
+			BONE_P9_18 (SLEWCTRL_SLOW | PIN_INPUT_PULLUP | MUX_MODE2)
+			/* spi0_cs0.i2c1_scl 0x15c */
+			BONE_P9_17 (SLEWCTRL_SLOW | PIN_INPUT_PULLUP | MUX_MODE2)
+		>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+
+	clock-frequency = <100000>;
+};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 841c5c4..7403b68 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -23,6 +23,8 @@
 #include "am335x-peripheral-ttyS5.dtsi"
 #include "am335x-bone-pinmux-ttyS5.dtsi"
 
+#include "am335x-bone-pinmux-i2c-1.dtsi"
+
 / {
 	model = "TI AM335x BeagleBone";
 	compatible = "ti,am335x-bone", "ti,am33xx";
-- 
2.8.0.rc3.226.g39d4020