@@ -322,6 +322,34 @@
};
/*
+ * 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
*/
osc24M_32k: clk@1 {
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> --- arch/arm/boot/dts/sun7i-a20.dtsi | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+)