linux-kernel - [PATCH v3 4/8] ARM: dts: sun7i: Add pin muxing options for the GMAC

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Message-Id: <1391398346-5094-5-git-send-email-wens@csie.org>
Date:	Mon,  3 Feb 2014 11:32:22 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Emilio Lopez <emilio@...pez.com.ar>,
	Mike Turquette <mturquette@...aro.org>
Cc:	Chen-Yu Tsai <wens@...e.org>, linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...glegroups.com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 4/8] ARM: dts: sun7i: Add pin muxing options for the GMAC

The A20 has EMAC and GMAC muxed on the same pins.
Add pin sets with gmac function for MII and RGMII mode to the DTSI.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 5fbac23..65fb8d0 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -469,6 +469,32 @@
 				allwinner,drive = <0>;
 				allwinner,pull = <0>;
 			};
+
+			gmac_pins_mii_a: gmac_mii@0 {
+				allwinner,pins = "PA0", "PA1", "PA2",
+						"PA3", "PA4", "PA5", "PA6",
+						"PA7", "PA8", "PA9", "PA10",
+						"PA11", "PA12", "PA13", "PA14",
+						"PA15", "PA16";
+				allwinner,function = "gmac";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
+			gmac_pins_rgmii_a: gmac_rgmii@0 {
+				allwinner,pins = "PA0", "PA1", "PA2",
+						"PA3", "PA4", "PA5", "PA6",
+						"PA7", "PA8", "PA10",
+						"PA11", "PA12", "PA13",
+						"PA15", "PA16";
+				allwinner,function = "gmac";
+				/*
+				 * data lines in RGMII mode use DDR mode
+				 * and need a higher signal drive strength
+				 */
+				allwinner,drive = <3>;
+				allwinner,pull = <0>;
+			};
 		};
 
 		timer@...20c00 {
-- 
1.9.rc1

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