build/patch/kernel/rockchip-current/general-temporary-ethernet-fixup.patch

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Diff

This is a temporary fix for ethernet with kernels 5.4.7+
It reverts the following change: https://patchwork.ozlabs.org/patch/1213121/
which disabled mdio init for most of the boards except NanoPi M4(V2)
or NanoPC T4 which have proper device tree definition for mdio/phy.
The proper fix will be to add phy device tree node for boards that miss
it.
---
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 170c3a052b14..1f230bd854c4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -320,7 +320,7 @@ out:
static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
struct device_node *np, struct device *dev)
{
- bool mdio = false;
+ bool mdio = true;
static const struct of_device_id need_mdio_ids[] = {
{ .compatible = "snps,dwc-qos-ethernet-4.10" },
{},