From fea66073171461eebcf35264293616d6423788e5 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 19 Feb 2022 17:13:54 +0100 Subject: ARM: imx: imx8mn-ddr4-evk: Add ethernet support Add support for ethernet on the imx8mn-ddr4-evk. Signed-off-by: Marek Vasut Cc: Fabio Estevam Cc: Peng Fan Cc: Stefano Babic --- arch/arm/dts/imx8mn-evk.dtsi | 1 + board/freescale/imx8mn_evk/imx8mn_evk.c | 36 ++++++++++++++++++++++++++++++--- configs/imx8mn_ddr4_evk_defconfig | 5 +++++ 3 files changed, 39 insertions(+), 3 deletions(-) diff --git a/arch/arm/dts/imx8mn-evk.dtsi b/arch/arm/dts/imx8mn-evk.dtsi index 76d042a..416fadb 100644 --- a/arch/arm/dts/imx8mn-evk.dtsi +++ b/arch/arm/dts/imx8mn-evk.dtsi @@ -53,6 +53,7 @@ pinctrl-0 = <&pinctrl_fec1>; phy-mode = "rgmii-id"; phy-handle = <ðphy0>; + phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>; fsl,magic-packet; status = "okay"; diff --git a/board/freescale/imx8mn_evk/imx8mn_evk.c b/board/freescale/imx8mn_evk/imx8mn_evk.c index 9a0a048..b24342f 100644 --- a/board/freescale/imx8mn_evk/imx8mn_evk.c +++ b/board/freescale/imx8mn_evk/imx8mn_evk.c @@ -7,17 +7,47 @@ #include #include #include +#include +#include +#include DECLARE_GLOBAL_DATA_PTR; -int board_init(void) +int board_mmc_get_env_dev(int devno) { + return devno; +} + +static void setup_fec(void) +{ + struct iomuxc_gpr_base_regs *gpr = + (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; + + /* Use 125M anatop REF_CLK1 for ENET1, not from external */ + clrsetbits_le32(&gpr->gpr[1], 0x2000, 0); +} + +int board_phy_config(struct phy_device *phydev) +{ + /* enable rgmii rxc skew and phy mode select to RGMII copper */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8); + + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100); + + if (phydev->drv->config) + phydev->drv->config(phydev); return 0; } -int board_mmc_get_env_dev(int devno) +int board_init(void) { - return devno; + setup_fec(); + + return 0; } int board_late_init(void) diff --git a/configs/imx8mn_ddr4_evk_defconfig b/configs/imx8mn_ddr4_evk_defconfig index 4f943a6..27bf5ec 100644 --- a/configs/imx8mn_ddr4_evk_defconfig +++ b/configs/imx8mn_ddr4_evk_defconfig @@ -65,7 +65,12 @@ CONFIG_MMC_HS400_ES_SUPPORT=y CONFIG_MMC_HS400_SUPPORT=y CONFIG_FSL_USDHC=y CONFIG_PHYLIB=y +CONFIG_PHY_ATHEROS=y CONFIG_DM_ETH=y +CONFIG_DM_ETH_PHY=y +CONFIG_PHY_GIGE=y +CONFIG_FEC_MXC=y +CONFIG_MII=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_IMX8M=y -- cgit v1.1