From mboxrd@z Thu Jan 1 00:00:00 1970 From: wens@csie.org (Chen-Yu Tsai) Date: Thu, 6 Mar 2014 00:27:12 +0800 Subject: [PATCH 2/5] ARM: sun6i: dt: Add GMAC clock node to the A31 DTSI In-Reply-To: <1394036835-22007-1-git-send-email-wens@csie.org> References: <1394036835-22007-1-git-send-email-wens@csie.org> Message-ID: <1394036835-22007-3-git-send-email-wens@csie.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- arch/arm/boot/dts/sun6i-a31.dtsi | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi index 4d2a2bf..ee09e4c 100644 --- a/arch/arm/boot/dts/sun6i-a31.dtsi +++ b/arch/arm/boot/dts/sun6i-a31.dtsi @@ -229,6 +229,34 @@ clocks = <&osc24M>, <&pll6>; clock-output-names = "spi3"; }; + + /* + * 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 at 1 { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <25000000>; + clock-output-names = "mii_phy_tx"; + }; + + gmac_int_tx_clk: clk at 2 { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <125000000>; + clock-output-names = "gmac_int_tx"; + }; + + gmac_tx_clk: clk at 01c200d0 { + #clock-cells = <0>; + compatible = "allwinner,sun7i-a20-gmac-clk"; + reg = <0x01c200d0 0x4>; + clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>; + clock-output-names = "gmac_tx"; + }; }; soc at 01c00000 { -- 1.9.0