linux-kernel - [PATCH v2 4/6] ARM: DTS: da850-evm: Enable McASP via DT boot

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Date:	Fri, 1 Aug 2014 09:13:28 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	<nsekhar@...com>, <robh+dt@...nel.org>
CC:	<khilman@...prootsystems.com>, <linux@....linux.org.uk>,
	<linux-arm-kernel@...ts.infradead.org>,
	<davinci-linux-open-source@...ux.davincidsp.com>,
	<pawel.moll@....com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH v2 4/6] ARM: DTS: da850-evm: Enable McASP via DT boot

Add pinctrl nodes for the McASP0 pins and configure McASP to the desired
mode for the board.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
---
 arch/arm/boot/dts/da850-evm.dts | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 1e11e5a5f723..1422c311af4c 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -17,6 +17,18 @@
 	soc {
 		pmx_core: pinmux@...4120 {
 			status = "okay";
+
+			mcasp0_pins: pinmux_mcasp0_pins {
+				pinctrl-single,bits = <
+					/*
+					 * AHCLKX, ACLKX, AFSX, AHCLKR, ACLKR,
+					 * AFSR, AMUTE
+					 */
+					0x00 0x11111111 0xffffffff
+					/* AXR11, AXR12 */
+					0x04 0x00011000 0x000ff000
+				>;
+			};
 		};
 		serial0: serial@...2000 {
 			status = "okay";
@@ -170,3 +182,21 @@
 		};
 	};
 };
+
+&mcasp0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcasp0_pins>;
+
+	op-mode = <0>;          /* MCASP_IIS_MODE */
+	tdm-slots = <2>;
+	/* 4 serializer */
+	serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+		0 0 0 0
+		0 0 0 0
+		0 0 0 1
+		2 0 0 0
+	>;
+	tx-num-evt = <32>;
+	rx-num-evt = <32>;
+};
-- 
2.0.2

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