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ARM: imx: imx8mn-ddr4-evk: Add ethernet support

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Add support for ethernet on the imx8mn-ddr4-evk.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2022-02-19 17:13:54 +01:00 committed by Stefano Babic
parent 3240d011ae
commit fea6607317
3 changed files with 41 additions and 5 deletions
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1
arch/arm/dts/imx8mn-evk.dtsi
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@ -53,6 +53,7 @@
pinctrl-0 = <&pinctrl_fec1>; pinctrl-0 = <&pinctrl_fec1>;
phy-mode = "rgmii-id"; phy-mode = "rgmii-id";
phy-handle = <&ethphy0>; phy-handle = <&ethphy0>;
phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
fsl,magic-packet; fsl,magic-packet;
status = "okay"; status = "okay";

40
board/freescale/imx8mn_evk/imx8mn_evk.c
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@ -7,19 +7,49 @@
#include <env.h> #include <env.h>
#include <init.h> #include <init.h>
#include <asm/global_data.h> #include <asm/global_data.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
return 0;
}
int board_mmc_get_env_dev(int devno) int board_mmc_get_env_dev(int devno)
{ {
return 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_init(void)
{
setup_fec();
return 0;
}
int board_late_init(void) int board_late_init(void)
{ {
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG

5
configs/imx8mn_ddr4_evk_defconfig
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@ -65,7 +65,12 @@ CONFIG_MMC_HS400_ES_SUPPORT=y
CONFIG_MMC_HS400_SUPPORT=y CONFIG_MMC_HS400_SUPPORT=y
CONFIG_FSL_USDHC=y CONFIG_FSL_USDHC=y
CONFIG_PHYLIB=y CONFIG_PHYLIB=y
CONFIG_PHY_ATHEROS=y
CONFIG_DM_ETH=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_PINCTRL=y
CONFIG_SPL_PINCTRL=y CONFIG_SPL_PINCTRL=y
CONFIG_PINCTRL_IMX8M=y CONFIG_PINCTRL_IMX8M=y