- i.MX8QXP-MEK ethernet fix

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Merge tag 'fixes-for-2019.04-rc4' of git://git.denx.de/u-boot-staging

- i.MX8QXP-MEK ethernet fix

arch/arm/dts/fsl-imx8qxp-mek.dts

@@ -224,6 +224,7 @@
 	status = "okay";
 	phy-reset-gpios = <&pca9557_a 4 GPIO_ACTIVE_LOW>;
 	phy-reset-duration = <10>;
+	phy-reset-post-delay = <150>;
 
 	mdio {
 		#address-cells = <1>;

drivers/net/fec_mxc.c

@@ -1309,6 +1309,8 @@ static void fec_gpio_reset(struct fec_priv *priv)
 		dm_gpio_set_value(&priv->phy_reset_gpio, 1);
 		mdelay(priv->reset_delay);
 		dm_gpio_set_value(&priv->phy_reset_gpio, 0);
+		if (priv->reset_post_delay)
+			mdelay(priv->reset_post_delay);
 	}
 }
 #endif
@@ -1468,6 +1470,15 @@ static int fecmxc_ofdata_to_platdata(struct udevice *dev)
 		/* property value wrong, use default value */
 		priv->reset_delay = 1;
 	}
+
+	priv->reset_post_delay = dev_read_u32_default(dev,
+						      "phy-reset-post-delay",
+						      0);
+	if (priv->reset_post_delay > 1000) {
+		printf("FEC MXC: phy reset post delay should be <= 1000ms\n");
+		/* property value wrong, use default value */
+		priv->reset_post_delay = 0;
+	}
 #endif
 
 	return 0;

drivers/net/fec_mxc.h

@@ -258,6 +258,7 @@ struct fec_priv {
 #ifdef CONFIG_DM_GPIO
 	struct gpio_desc phy_reset_gpio;
 	uint32_t reset_delay;
+	uint32_t reset_post_delay;
 #endif
 #ifdef CONFIG_DM_ETH
 	u32 interface;