Messages in this thread Patch in this message |  | | From | Sven Van Asbroeck <> | Subject | [PATCH v1 5/5] ARM: dts: imx6qp: support improved enet clocking on QuadPlus | Date | Sun, 12 Jul 2020 20:25:12 -0400 |
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Board designers are now able to choose between all three supported enet clocking methods, by changing the clocktree via the devicetree:
a) route enet_ref externally from pad to pad (the default):
no clock tree changes required
b) route internally on SoC from enet_ref
&fec { assigned-clocks = <&clks IMX6QDL_CLK_ENET_PTP>, <&clks IMX6QDL_CLK_ENET_REF>; assigned-clock-parents = <&clks IMX6QDL_CLK_ENET_REF>; assigned-clock-rates = <0>, <125000000>; };
c) route external clock (from PHY or oscillator) via pad
/ { clocks { phy_osc: anaclk3 { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <125000000>; }; }; };
&fec { assigned-clocks = <&clks IMX6QDL_CLK_ENET_PTP>, <&clks IMX6QDL_CLK_ENET_PAD>; assigned-clock-parents = <&clks IMX6QDL_CLK_ENET_PAD>, <&clks IMX6QDL_CLK_ANACLK3>; };
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> ---
Tree: v5.8-rc4
To: Shawn Guo <shawnguo@kernel.org> To: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-clk@vger.kernel.org
arch/arm/boot/dts/imx6qp.dtsi | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/imx6qp.dtsi b/arch/arm/boot/dts/imx6qp.dtsi index b310f13a53f2..7f81d35f56c9 100644 --- a/arch/arm/boot/dts/imx6qp.dtsi +++ b/arch/arm/boot/dts/imx6qp.dtsi @@ -79,6 +79,9 @@ &fec { interrupts = <0 118 IRQ_TYPE_LEVEL_HIGH>, <0 119 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6QDL_CLK_ENET>, + <&clks IMX6QDL_CLK_ENET>, + <&clks IMX6QDL_CLK_ENET_PTP>; }; &gpc { -- 2.17.1
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