From b506b2ae67a55a30a8e33462e41fccb4e0146fa9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=AA=B7=E9=AB=85=E5=A4=B4?=
 <74764072+DHDAXCW@users.noreply.github.com>
Date: Sat, 16 Jul 2022 17:28:21 +0800
Subject: [PATCH] rockchip: fix rk3399 pppoe error in kernel 5.18

---
 .../patches-5.18/801-fix-stmmac_mdio.patch    | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 target/linux/rockchip/patches-5.18/801-fix-stmmac_mdio.patch

diff --git a/target/linux/rockchip/patches-5.18/801-fix-stmmac_mdio.patch b/target/linux/rockchip/patches-5.18/801-fix-stmmac_mdio.patch
new file mode 100644
index 00000000000000..328b1af9eb9cc4
--- /dev/null
+++ b/target/linux/rockchip/patches-5.18/801-fix-stmmac_mdio.patch
@@ -0,0 +1,24 @@
++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+@@ -498,6 +498,11 @@ int stmmac_mdio_register(struct net_devi
+ 	if (priv->plat->has_xgmac)
+ 		stmmac_xgmac2_mdio_read(new_bus, 0, MII_ADDR_C45);
+ 
++		stmmac_mdio_write(new_bus,0,31,2627);
++		stmmac_mdio_write(new_bus,0,25,0x1801);
++		stmmac_mdio_write(new_bus,0,31,0);
++		stmmac_mdio_write(new_bus,0,0,0x8000);
++
+ 	if (priv->plat->phy_node || mdio_node)
+ 		goto bus_register_done;
+ 
+--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+@@ -2907,6 +2907,8 @@ static int stmmac_init_dma_engine(struct
+ 	if (priv->extend_desc && (priv->mode == STMMAC_RING_MODE))
+ 		atds = 1;
+ 
++	msleep(1500);
++
+ 	ret = stmmac_reset(priv, priv->ioaddr);
+ 	if (ret) {
+ 		dev_err(priv->device, "Failed to reset the dma\n");