Hello,
I configured a LAN8720 phy with imx6UL custom board and it is working fine in kernel but in u-boot it is showing following error:
Net: FEC MXC: board_eth_init:failed
Board Net Initialization Failed
No ethernet found.
I did following configuration in u-boot:
imx6ulevk.c
#define ENET_PAD_CTRL ( PAD_CTL_SRE_SLOW | PAD_CTL_SPEED_MED | \
PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
PAD_CTL_DSE_40ohm )
#define ENET_CLK_PAD_CTRL ( PAD_CTL_SRE_FAST | PAD_CTL_DSE_40ohm | \
PAD_CTL_SPEED_MED | \
PAD_CTL_PUS_100K_UP | PAD_CTL_HYS )
static iomux_v3_cfg_t const fec1_pads[] = {
MX6_PAD_ENET2_RX_DATA0__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET2_RX_DATA1__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_SNVS_TAMPER6__GPIO5_IO06 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_SNVS_TAMPER5__GPIO5_IO05 | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
static void setup_iomux_fec(int fec_id){
if (fec_id == 0){
imx_iomux_v3_setup_multiple_pads(fec1_pads,ARRAY_SIZE(fec1_pads));
}
else
printf("Warning: FEC ID 2 is NOT supported on J2 Board\n");
}
int board_eth_init(bd_t *bis){
struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
int reg,ret;
setup_iomux_fec(0);
gpio_direction_output(IMX_GPIO_NR(5, 6) , 0);
reg = readl(&iomuxc_regs->gpr[1]);
reg |= IOMUXC_GPR1_ENET_CLK_SEL_MASK;
writel(reg, &iomuxc_regs->gpr[1]);
ret = enable_fec_anatop_clock(0, ENET_50MHZ);
if (ret)
return ret;
enable_enet_clk(1);
mdelay(30);
gpio_set_value(IMX_GPIO_NR(5, 6), 1);
ret = cpu_eth_init(bis);
if (ret)
printf("FEC MXC: %s:failed\n", __func__);
return ret;
}
int board_phy_config(struct phy_device *phydev){
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
imx6ulevk.h
#define CONFIG_FEC_MXC
#define CONFIG_MII
#define CONFIG_FEC_ENET_DEV 0
#if (CONFIG_FEC_ENET_DEV == 0)
#define IMX_FEC_BASE ENET_BASE_ADDR
#define CONFIG_FEC_MXC_PHYADDR 0x2
#define CONFIG_FEC_XCV_TYPE RMII
#endif
#define CONFIG_ETHPRIME "FEC"
#define CONFIG_PHYLIB
#define CONFIG_PHY_SMSC
