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51 lines
1.5 KiB
51 lines
1.5 KiB
From 3e1660161aacc5aeeebb09a0c8d91ad01399e5cd Mon Sep 17 00:00:00 2001
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From: Chen-Yu Tsai <wens@csie.org>
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Date: Mon, 10 Feb 2014 18:35:48 +0800
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Subject: [PATCH] ARM: dts: sun7i: Add GMAC clock node to sun7i DTSI
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The GMAC uses 1 of 2 sources for its transmit clock, depending on the
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PHY interface mode. Add both sources as dummy clocks, and as parents
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to the GMAC clock node.
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Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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---
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arch/arm/boot/dts/sun7i-a20.dtsi | 28 ++++++++++++++++++++++++++++
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1 file changed, 28 insertions(+)
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--- a/arch/arm/boot/dts/sun7i-a20.dtsi
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+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
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@@ -330,6 +330,34 @@
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};
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/*
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+ * The following two are dummy clocks, placeholders used in the gmac_tx
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+ * clock. The gmac driver will choose one parent depending on the PHY
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+ * interface mode, using clk_set_rate auto-reparenting.
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+ * The actual TX clock rate is not controlled by the gmac_tx clock.
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+ */
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+ mii_phy_tx_clk: clk@2 {
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+ #clock-cells = <0>;
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+ compatible = "fixed-clock";
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+ clock-frequency = <25000000>;
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+ clock-output-names = "mii_phy_tx";
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+ };
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+
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+ gmac_int_tx_clk: clk@3 {
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+ #clock-cells = <0>;
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+ compatible = "fixed-clock";
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+ clock-frequency = <125000000>;
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+ clock-output-names = "gmac_int_tx";
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+ };
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+
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+ gmac_tx_clk: clk@01c20164 {
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+ #clock-cells = <0>;
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+ compatible = "allwinner,sun7i-a20-gmac-clk";
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+ reg = <0x01c20164 0x4>;
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+ clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>;
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+ clock-output-names = "gmac_tx";
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+ };
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+
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+ /*
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* Dummy clock used by output clocks
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*/
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osc24M_32k: clk@1 {
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