[PATCH V2 3/3] arm64: dts: imx8ulp-evk: Add the fec support

Wei Fang
2022-07-11T01:50:15Z

Enable the fec on i.MX8ULP EVK board.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
---
V2 change:
Add clock_ext_rmii and clock_ext_ts. They are both related to EVK board.
---
arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 57 +++++++++++++++++++
1 file changed, 57 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
index 33e84c4e9ed8..ebce716b10e6 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
@@ -19,6 +19,21 @@ memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0 0x80000000>;
};
+
+ clock_ext_rmii: clock-ext-rmii {
+ compatible = "fixed-clock";
+ clock-frequency = <50000000>;
+ clock-output-names = "ext_rmii_clk";
+ #clock-cells = <0>;
+ };
+
+ clock_ext_ts: clock-ext-ts {
+ compatible = "fixed-clock";
+ /* External ts clock is 50MHZ from PHY on EVK board. */
+ clock-frequency = <50000000>;
+ clock-output-names = "ext_ts_clk";
+ #clock-cells = <0>;
+ };
};

&lpuart5 {
@@ -38,7 +53,49 @@ &usdhc0 {
status = "okay";
};

+&fec {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&pinctrl_enet>;
+ pinctrl-1 = <&pinctrl_enet>;
+ clocks = <&cgc1 IMX8ULP_CLK_XBAR_DIVBUS>,
+ <&pcc4 IMX8ULP_CLK_ENET>,
+ <&cgc1 IMX8ULP_CLK_ENET_TS_SEL>,
+ <&clock_ext_rmii>;
+ clock-names = "ipg", "ahb", "ptp", "enet_clk_ref";
+ assigned-clocks = <&cgc1 IMX8ULP_CLK_ENET_TS_SEL>;
+ assigned-clock-parents = <&clock_ext_ts>;
+ phy-mode = "rmii";
+ phy-handle = <&ethphy>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy: ethernet-phy {
+ reg = <1>;
+ micrel,led-mode = <1>;
+ };
+ };
+};
+
&iomuxc1 {
+ pinctrl_enet: enetgrp {
+ fsl,pins = <
+ MX8ULP_PAD_PTE15__ENET0_MDC 0x43
+ MX8ULP_PAD_PTE14__ENET0_MDIO 0x43
+ MX8ULP_PAD_PTE17__ENET0_RXER 0x43
+ MX8ULP_PAD_PTE18__ENET0_CRS_DV 0x43
+ MX8ULP_PAD_PTF1__ENET0_RXD0 0x43
+ MX8ULP_PAD_PTE20__ENET0_RXD1 0x43
+ MX8ULP_PAD_PTE16__ENET0_TXEN 0x43
+ MX8ULP_PAD_PTE23__ENET0_TXD0 0x43
+ MX8ULP_PAD_PTE22__ENET0_TXD1 0x43
+ MX8ULP_PAD_PTE19__ENET0_REFCLK 0x43
+ MX8ULP_PAD_PTF10__ENET0_1588_CLKIN 0x43
+ >;
+ };
+
pinctrl_lpuart5: lpuart5grp {
fsl,pins = <
MX8ULP_PAD_PTF14__LPUART5_TX 0x3
--
2.25.1