linux-kernel - [PATCH v2 3/3] ARM: dts: k2g-evm: Add pinmuxing for UART0

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Date:	Thu,  9 Jun 2016 10:26:18 -0500
From:	Franklin S Cooper Jr <fcooper@...com>
To:	ssantosh@...nel.org, robh+dt@...nel.org,
	devicetree@...r.kernel.org, linux@...linux.org.uk,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	Lokesh Vutla <lokeshvutla@...com>,
	Franklin S Cooper Jr <fcooper@...com>,
	Tero Kristo <t-kristo@...com>, Dave Gerlach <d-gerlach@...com>
Subject: [PATCH v2 3/3] ARM: dts: k2g-evm: Add pinmuxing for UART0

From: Lokesh Vutla <lokeshvutla@...com>

Avoid depending on the bootloader or the ROM for configuring the pinmux by
explicitly setting the pinmux here.

Signed-off-by: Lokesh Vutla <lokeshvutla@...com>
Signed-off-by: Franklin S Cooper Jr <fcooper@...com>
Signed-off-by: Tero Kristo <t-kristo@...com>
Signed-off-by: Dave Gerlach <d-gerlach@...com>
---
 arch/arm/boot/dts/keystone-k2g-evm.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g-evm.dts b/arch/arm/boot/dts/keystone-k2g-evm.dts
index 5bfd9e7..692fcbb 100644
--- a/arch/arm/boot/dts/keystone-k2g-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2g-evm.dts
@@ -27,6 +27,17 @@
 
 };
 
+&k2g_pinctrl {
+	uart0_pins: pinmux_uart0_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x11cc) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+			K2G_CORE_IOPAD(0x11d0) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
+		>;
+	};
+};
+
 &uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
 	status = "okay";
 };
-- 
2.7.0