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Commit 984c7706 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

ARM: dts: omap4-droid4: Configure uart1 pins 



These are needed to use the n_gsm driver for TS 27.010 UART
multiplexing. Note that support for the OOB wake gpio is still
missing so the UART is not yet usable for n_gsm.

Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent e5b9fd7b

arch/arm/boot/dts/omap4-droid4-xt894.dts

+33 −0
Original line number Diff line number Diff line
@@ -553,6 +553,28 @@ 
		>;

	};



	/*

	 * Note that the v3.0.8 stock userspace dynamically remuxes uart1

	 * rts pin probably for PM purposes to PIN_INPUT_PULLUP | MUX_MODE7

	 * when not used. If needed, we can add rts pin remux later based

	 * on power measurements.

	 */

	uart1_pins: pinmux_uart1_pins {

		pinctrl-single,pins = <

		/* 0x4a10013c mcspi1_cs2.uart1_cts ag23 */

		OMAP4_IOPAD(0x13c, PIN_INPUT_PULLUP | MUX_MODE1)



		/* 0x4a10013e mcspi1_cs3.uart1_rts ah23 */

		OMAP4_IOPAD(0x13e, MUX_MODE1)



		/* 0x4a100140 uart3_cts_rctx.uart1_tx f27 */

		OMAP4_IOPAD(0x140, PIN_OUTPUT | MUX_MODE1)



		/* 0x4a1001ca dpm_emu14.uart1_rx aa3 */

		OMAP4_IOPAD(0x1ca, PIN_INPUT_PULLUP | MUX_MODE2)

		>;

	};



	/* uart3_tx_irtx and uart3_rx_irrx */

	uart3_pins: pinmux_uart3_pins {

		pinctrl-single,pins = <
@@ -622,6 +644,17 @@ 
	};

};



/*

 * As uart1 is wired to mdm6600 with rts and cts, we can use the cts pin for

 * uart1 wakeirq.

 */

&uart1 {

	pinctrl-names = "default";

	pinctrl-0 = <&uart1_pins>;

	interrupts-extended = <&wakeupgen GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH

			       &omap4_pmx_core 0xfc>;

};



&uart3 {

	interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH

			       &omap4_pmx_core 0x17c>;