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imx: imx8mm-evk: enable ethernet

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add phy-reset-gpios to reset phy
Add board_phy_config to configure phy
Enable DM_ETH

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2019-10-22 03:30:04 +00:00 • committed by Stefano Babic
parent 673f659732
commit bdcf3a88cc
4 changed files with 56 additions and 0 deletions
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4
arch/arm/dts/imx8mm-evk-u-boot.dtsi
View file

@ -113,3 +113,7 @@
&pinctrl_pmic {
u-boot,dm-spl;
};
&fec1 {
phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
};

37
board/freescale/imx8mm_evk/imx8mm_evk.c
View file

@ -4,6 +4,11 @@
*/
#include <common.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/arch/clock.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
@ -14,8 +19,40 @@ int dram_init(void)
return 0;
}
#if IS_ENABLED(CONFIG_FEC_MXC)
static int 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);
return 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;
}
#endif
int board_init(void)
{
if (IS_ENABLED(CONFIG_FEC_MXC))
setup_fec();
return 0;
}

7
configs/imx8mm_evk_defconfig
View file

@ -35,6 +35,9 @@ CONFIG_CMD_FUSE=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_DHCP=y
CONFIG_CMD_MII=y
CONFIG_CMD_PING=y
CONFIG_CMD_CACHE=y
CONFIG_CMD_REGULATOR=y
CONFIG_CMD_EXT2=y
@ -62,7 +65,11 @@ CONFIG_DM_MMC=y
CONFIG_SUPPORT_EMMC_BOOT=y
CONFIG_FSL_ESDHC_IMX=y
CONFIG_PHYLIB=y
CONFIG_PHY_ATHEROS=y
CONFIG_DM_ETH=y
CONFIG_PHY_GIGE=y
CONFIG_FEC_MXC=y
CONFIG_MII=y
CONFIG_PINCTRL=y
CONFIG_SPL_PINCTRL=y
CONFIG_PINCTRL_IMX8M=y

8
include/configs/imx8mm_evk.h
View file

@ -150,4 +150,12 @@
#define CONFIG_SYS_I2C_SPEED 100000
#define CONFIG_ETHPRIME "FEC"
#define CONFIG_FEC_XCV_TYPE RGMII
#define CONFIG_FEC_MXC_PHYADDR 0
#define FEC_QUIRK_ENET_MAC
#define IMX_FEC_BASE 0x30BE0000
#endif