[linux-yocto] [PATCH] ARM: dts: am335x-boneblack: configure i2c1 and 2

Yong Li yong.b.li at intel.com
Tue May 31 00:00:20 PDT 2016


From: Nishanth Menon <nm at ti.com>

Configure i2c1 and 2 at 400KHz.

Signed-off-by: Nishanth Menon <nm at ti.com>

Upstream-status: Inappropriate, not author
Signed-off-by: Yong Li <yong.b.li at intel.com>
---
 arch/arm/boot/dts/am335x-boneblack.dts | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 901739f..a441804 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -64,12 +64,42 @@
 			0x1b0 0x03      /* xdma_event_intr0, OMAP_MUX_MODE3 | AM33XX_PIN_OUTPUT */
 		>;
 	};
+
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			0x158 (PIN_INPUT_PULLUP | MUX_MODE2)	/* spi0_d1.i2c1_sda */
+			0x15c (PIN_INPUT_PULLUP | MUX_MODE2)	/* spi0_cs0.i2c1_scl */
+		>;
+	};
+
+	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 */
+		>;
+	};
 };
 
 &lcdc {
 	status = "okay";
 };
 
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+
+	status = "okay";
+	clock-frequency = <400000>;
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+
+	status = "okay";
+	clock-frequency = <400000>;
+};
+
 / {
 	hdmi {
 		compatible = "ti,tilcdc,slave";
-- 
2.7.4



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