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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@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
hifive-unleashed-5.1
Chen-Yu Tsai 2014-02-10 18:35:48 +08:00 committed by Maxime Ripard
parent 06067a2f62
commit daed5a8163
1 changed files with 28 additions and 0 deletions
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28
arch/arm/boot/dts/sun7i-a20.dtsi
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@ -321,6 +321,34 @@
clock-output-names = "mbus";
};
/*
* The following two are dummy clocks, placeholders used in the gmac_tx
* clock. The gmac driver will choose one parent depending on the PHY
* interface mode, using clk_set_rate auto-reparenting.
* The actual TX clock rate is not controlled by the gmac_tx clock.
*/
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@01c20164 {
#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
*/