diff options
| -rw-r--r-- | drivers/net/dwc_eth_qos_imx.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/dwc_eth_qos_imx.c b/drivers/net/dwc_eth_qos_imx.c index 642432834f5..af42f7436ce 100644 --- a/drivers/net/dwc_eth_qos_imx.c +++ b/drivers/net/dwc_eth_qos_imx.c @@ -216,6 +216,27 @@ static int eqos_get_enetaddr_imx(struct udevice *dev) return 0; } +static void eqos_fix_soc_reset_imx(struct udevice *dev) +{ + struct eqos_priv *eqos = dev_get_priv(dev); + + if (IS_ENABLED(CONFIG_IMX93)) { + /* + * Workaround for ERR051683 in i.MX93 + * The i.MX93 requires speed configuration bits to be set to + * complete the reset procedure in RMII mode. + * See b536f32b5b03 ("net: stmmac: dwmac-imx: use platform + * specific reset for imx93 SoCs") in linux + */ + if (eqos->config->interface(dev) == PHY_INTERFACE_MODE_RMII) { + udelay(200); + setbits_le32(&eqos->mac_regs->configuration, + EQOS_MAC_CONFIGURATION_PS | + EQOS_MAC_CONFIGURATION_FES); + } + } +} + static struct eqos_ops eqos_imx_ops = { .eqos_inval_desc = eqos_inval_desc_generic, .eqos_flush_desc = eqos_flush_desc_generic, @@ -232,6 +253,7 @@ static struct eqos_ops eqos_imx_ops = { .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_imx, .eqos_get_enetaddr = eqos_get_enetaddr_imx, .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx, + .eqos_fix_soc_reset = eqos_fix_soc_reset_imx, }; struct eqos_config __maybe_unused eqos_imx_config = { |