linux-kernel - [PATCH v2 10/16] ARM: dts: sun7i: Add GMAC clock node to sun7i DTSI

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Message-Id: <1389337217-29032-11-git-send-email-wens@csie.org>
Date:	Fri, 10 Jan 2014 15:00:11 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Srinivas Kandagatla <srinivas.kandagatla@...com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Chen-Yu Tsai <wens@...e.org>, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com,
	linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	Emilio Lopez <emilio@...pez.com.ar>,
	Mike Turquette <mturquette@...aro.org>
Subject: [PATCH v2 10/16] ARM: dts: sun7i: Add GMAC clock node to sun7i DTSI

The GMAC uses 1 of 2 sources for its transmit clock, depending on the
PHY interface mode. Add both sources as dummy clocks, and as parents
to the GMAC clock node.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun7i-a20.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 2a78de4..4019c55 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -308,6 +308,34 @@
 		};
 
 		/*
+		 * The following two are dummy clocks, placeholders used
+		 * on gmac_tx clock. The actual frequency and availability
+		 * depends on the external PHY, operation mode and link
+		 * speed.
+		 */
+		mii_phy_tx_clk: clk@2 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <25000000>;
+			clock-output-names = "mii_phy_tx";
+		};
+
+		gmac_int_tx_clk: clk@3 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <125000000>;
+			clock-output-names = "gmac_int_tx";
+		};
+
+		gmac_tx_clk: clk@...20164 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun7i-a20-gmac-clk";
+			reg = <0x01c20164 0x4>;
+			clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>;
+			clock-output-names = "gmac_tx";
+		};
+
+		/*
 		 * Dummy clock used by output clocks
 		 */
 		osc24M_32k: clk@1 {
-- 
1.8.5.2

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