static int setup_fec(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
int ret;
int reg;
/* Use 125MHz anatop loopback REF_CLK1 for ENET1 */
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0);
imx_iomux_v3_setup_multiple_pads(phy_control_pads,
ARRAY_SIZE(phy_control_pads));
/* Enable the ENET power, active low */
gpio_direction_output(IMX_GPIO_NR(2, 6) , 0);
/* Reset AR8031 PHY */
gpio_direction_output(IMX_GPIO_NR(2, 7) , 0);
udelay(500);
gpio_set_value(IMX_GPIO_NR(2, 7), 1);
reg = readl(&anatop->pll_enet);
reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE;
writel(reg, &anatop->pll_enet);
ret = enable_fec_anatop_clock(ENET_125MHz);
if (ret)
return ret;
return 0;
}
static int setup_fec(int fec_id)
{
struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
int ret;
if (fec_id == 0) {
/*
* Use 50M anatop loopback REF_CLK1 for ENET1,
* clear gpr1[13], set gpr1[17].
*/
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
} else {
/*
* Use 50M anatop loopback REF_CLK2 for ENET2,
* clear gpr1[14], set gpr1[18].
*/
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
}
ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ);
if (ret)
return ret;
enable_enet_clk(1);
return 0;
}
static int setup_fec(int fec_id)
{
struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
int ret;
if (0 == fec_id) {
if (check_module_fused(MX6_MODULE_ENET1))
return -1;
/* Use 50M anatop loopback REF_CLK1 for ENET1, clear gpr1[13], set gpr1[17]*/
clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
} else {
if (check_module_fused(MX6_MODULE_ENET2))
return -1;
/* Use 50M anatop loopback REF_CLK2 for ENET2, clear gpr1[14], set gpr1[18]*/
clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
}
ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ);
if (ret)
return ret;
enable_enet_clk(1);
return 0;
}
static int setup_fec(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
/* Use 125MHz anatop loopback REF_CLK1 for ENET2 */
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK, 0);
return enable_fec_anatop_clock(1, ENET_125MHZ);
}
static int setup_fec(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
/* clear gpr1[14], gpr1[18:17] to select anatop clock */
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
return enable_fec_anatop_clock(0, ENET_50MHZ);
}
static void setup_fec(void)
{
if (is_mx6dqp()) {
/*
* select ENET MAC0 TX clock from PLL
*/
imx_iomux_set_gpr_register(5, 9, 1, 1);
enable_fec_anatop_clock(0, ENET_125MHZ);
}
setup_iomux_enet();
}
static int setup_fec(int fec_id)
{
struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
if (0 == fec_id)
/* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17]*/
clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0);
else
/* Use 125M anatop REF_CLK1 for ENET2, clear gpr1[14], gpr1[18]*/
clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], IOMUX_GPR1_FEC2_MASK, 0);
return enable_fec_anatop_clock(fec_id, ENET_125MHZ);
}
int board_eth_init(bd_t *bis)
{
struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
int ret = enable_fec_anatop_clock(ENET_25MHZ);
if (ret)
return ret;
/* set gpr1[ENET_CLK_SEL] */
setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
setup_iomux_enet();
return cpu_eth_init(bis);
}
static int setup_fec(void)
{
struct iomuxc_base_regs *iomuxc_regs =
(struct iomuxc_base_regs *)IOMUXC_BASE_ADDR;
int ret;
/* clear gpr1[14], gpr1[18:17] to select anatop clock */
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
ret = enable_fec_anatop_clock(ENET_50MHz);
if (ret)
return ret;
return 0;
}
int board_eth_init(bd_t *bis)
{
struct iomuxc *iomuxc_regs =
(struct iomuxc *)IOMUXC_BASE_ADDR;
int ret;
/* clear gpr1[14], gpr1[18:17] to select anatop clock */
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
ret = enable_fec_anatop_clock(0, ENET_50MHZ);
if (ret)
return ret;
setup_iomux_enet();
return cpu_eth_init(bis);
}
static int setup_fec(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
int ret;
setup_iomux_fec();
/* provide the PHY clock from the i.MX 6 */
ret = enable_fec_anatop_clock(1, ENET_50MHZ);
if (ret)
return ret;
/* Use 50M anatop REF_CLK and output it on the ENET2_TX_CLK */
clrsetbits_le32(&iomuxc_regs->gpr[1],
IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK,
IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
return 0;
}
/*
* This enet related pin-muxing and GPIO handling is done
* in SPL U-Boot. For early initialization. And to give the
* PHY some time to come out of reset before the U-Boot
* ethernet driver tries to access its registers via MDIO.
*/
int platinum_setup_enet(void)
{
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
unsigned phy_reset = IMX_GPIO_NR(1, 19);
/* First configure PHY reset GPIO pin */
imx_iomux_v3_setup_pad(phy_reset_pad);
/* Reconfigure enet muxing while PHY is in reset */
gpio_direction_output(phy_reset, 0);
imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
mdelay(10);
gpio_set_value(phy_reset, 1);
udelay(100);
/* set GPIO_16 as ENET_REF_CLK_OUT */
setbits_le32(&iomux->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
return enable_fec_anatop_clock(0, ENET_50MHZ);
}
int board_eth_init(bd_t *bis)
{
struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
struct mii_dev *bus;
struct phy_device *phydev;
int ret = enable_fec_anatop_clock(0, ENET_25MHZ);
if (ret)
return ret;
/* set gpr1[ENET_CLK_SEL] */
setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
setup_iomux_enet();
bus = fec_get_miibus(IMX_FEC_BASE, -1);
if (!bus)
return -EINVAL;
phydev = phy_find_by_mask(bus, ETH_PHY_MASK, PHY_INTERFACE_MODE_RGMII);
if (!phydev) {
ret = -EINVAL;
goto free_bus;
}
debug("using phy at address %d\n", phydev->addr);
ret = fec_probe(bis, -1, IMX_FEC_BASE, bus, phydev);
if (ret)
goto free_phydev;
return 0;
free_phydev:
free(phydev);
free_bus:
free(bus);
return ret;
}
