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arm64: dts: rockchip: Add support of external clock to ethernet node on Rock 3A SBC

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Add support of external clock gmac1_clkin which is used as input clock
to ethernet node.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Michael Riesch <michael.riesch@wolfvision.net>
Tested-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20221116200150.4657-3-linux.amoon@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Anand Moon 2022-11-16 20:01:44 +00:00 committed by Heiko Stuebner
parent ede9c90222
commit ef9f4b4a50
1 changed files with 10 additions and 3 deletions
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13
arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
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@ -32,6 +32,13 @@ hdmi_con_in: endpoint {
};
};
gmac1_clkin: external-gmac1-clock {
compatible = "fixed-clock";
clock-frequency = <125000000>;
clock-output-names = "gmac1_clkin";
#clock-cells = <0>;
};
leds {
compatible = "gpio-leds";
@ -249,9 +256,8 @@ &cpu3 {
&gmac1 {
assigned-clocks = <&cru SCLK_GMAC1_RX_TX>, <&cru SCLK_GMAC1>;
assigned-clock-parents = <&cru SCLK_GMAC1_RGMII_SPEED>;
assigned-clock-rates = <0>, <125000000>;
clock_in_out = "output";
assigned-clock-parents = <&cru SCLK_GMAC1_RGMII_SPEED>, <&gmac1_clkin>;
clock_in_out = "input";
phy-handle = <&rgmii_phy1>;
phy-mode = "rgmii-id";
pinctrl-names = "default";
@ -259,6 +265,7 @@ &gmac1 {
&gmac1m1_tx_bus2
&gmac1m1_rx_bus2
&gmac1m1_rgmii_clk
&gmac1m1_clkinout
&gmac1m1_rgmii_bus>;
status = "okay";
};