diff options
| -rw-r--r-- | drivers/net/dwc_eth_qos_stm32.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/net/dwc_eth_qos_stm32.c b/drivers/net/dwc_eth_qos_stm32.c index fbc08bba1d6..cffaa10b705 100644 --- a/drivers/net/dwc_eth_qos_stm32.c +++ b/drivers/net/dwc_eth_qos_stm32.c @@ -266,6 +266,12 @@ static int eqos_probe_resources_stm32(struct udevice *dev) if (ret) dev_warn(dev, "No phy clock provided %d\n", ret); + /* Get reset gpio pin (optional) */ + ret = gpio_request_by_name(dev, "phy-reset-gpios", 0, + &eqos->phy_reset_gpio, GPIOD_IS_OUT); + if (ret) + pr_warn("No phy reset gpio provided: %d\n", ret); + dev_dbg(dev, "%s: OK\n", __func__); return 0; @@ -277,6 +283,21 @@ err_probe: return ret; } +static int eqos_start_resets_stm32(struct udevice *dev) +{ + struct eqos_priv *eqos = dev_get_priv(dev); + + debug("%s(dev=%p):\n", __func__, dev); + + if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) { + dm_gpio_set_value(&eqos->phy_reset_gpio, 1); + udelay(2); + dm_gpio_set_value(&eqos->phy_reset_gpio, 0); + } + + return 0; +} + static int eqos_remove_resources_stm32(struct udevice *dev) { dev_dbg(dev, "%s:\n", __func__); @@ -292,7 +313,7 @@ static struct eqos_ops eqos_stm32_ops = { .eqos_probe_resources = eqos_probe_resources_stm32, .eqos_remove_resources = eqos_remove_resources_stm32, .eqos_stop_resets = eqos_null_ops, - .eqos_start_resets = eqos_null_ops, + .eqos_start_resets = eqos_start_resets_stm32, .eqos_stop_clks = eqos_stop_clks_stm32, .eqos_start_clks = eqos_start_clks_stm32, .eqos_calibrate_pads = eqos_null_ops, |