[d-kernel] [PATCH 2/7] net: stmmac: removed obsolete Baikal-M specific mdio reset

[Alexey Sheplyakov <asheplyakov@basealt.ru>]

Signed-off-by: Alexey Sheplyakov <asheplyakov@basealt.ru>
---
 .../devicetree/bindings/net/snps,dwmac.yaml   |  2 +-
 .../net/ethernet/stmicro/stmmac/stmmac_mdio.c | 63 -------------------
 2 files changed, 1 insertion(+), 64 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 014f1e95ba0d..61bb48b8396b 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -53,12 +53,12 @@ properties:
         - allwinner,sun8i-r40-emac
         - allwinner,sun8i-v3s-emac
         - allwinner,sun50i-a64-emac
-        - baikal,dwmac
         - amlogic,meson6-dwmac
         - amlogic,meson8b-dwmac
         - amlogic,meson8m2-dwmac
         - amlogic,meson-gxbb-dwmac
         - amlogic,meson-axg-dwmac
+        - baikal,dwmac
         - ingenic,jz4775-mac
         - ingenic,x1000-mac
         - ingenic,x1600-mac
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index 639bcc35e928..a5d150c5f3d8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -346,63 +346,6 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
 	return ret;
 }
 
-#define MAC_GPIO 0xe0 /* GPIO register */
-#define MAC_GPIO_GPO BIT(8)  /* output port */
-
-#if IS_ENABLED(CONFIG_STMMAC_PLATFORM) && IS_ENABLED(CONFIG_OF)
-/**
- * Reset the MII bus via MAC GP_OUT pin
- */
-static int stmmac_mdio_reset_gp_out(struct stmmac_priv *priv) {
-	u32 value, high, low;
-	u32 delays[3] = { 0, 0, 0 };
-	bool active_low = false;
-	struct device_node *np = priv->device->of_node;
-
-	if (!np)
-		return -ENODEV;
-
-	if (!of_property_read_bool(np, "snps,reset-gp-out")) {
-		dev_warn(priv->device, "snps,reset-gp-out is not set\n");
-		return -ENODEV;
-	}
-
-	dev_info(priv->device, "resetting MDIO via GP_OUT\n");
-	active_low = of_property_read_bool(np, "snsps,reset-active-low");
-	of_property_read_u32_array(np, "snps,reset-delays-us", delays, 3);
-
-	value = readl(priv->ioaddr + MAC_GPIO);
-	if (active_low) {
-		high = value | MAC_GPIO_GPO;
-		low = value & ~MAC_GPIO_GPO;
-	} else {
-		high = value & ~MAC_GPIO_GPO;
-		low = value | MAC_GPIO_GPO;
-	}
-
-	writel(high, priv->ioaddr + MAC_GPIO);
-	if (delays[0])
-		msleep(DIV_ROUND_UP(delays[0], 1000));
-
-	writel(low, priv->ioaddr + MAC_GPIO);
-	if (delays[1])
-		msleep(DIV_ROUND_UP(delays[1], 1000));
-
-	writel(high, priv->ioaddr + MAC_GPIO);
-	if (delays[2])
-		msleep(DIV_ROUND_UP(delays[2], 1000));
-
-	/* Clear PHY reset */
-	udelay(10);
-	value = readl(priv->ioaddr + MAC_GPIO);
-	value |= MAC_GPIO_GPO;
-	writel(value, priv->ioaddr + MAC_GPIO);
-	msleep(1000);
-	dev_info(priv->device, "mdio reset completed\n");
-	return 0;
-}
-#endif
-
 /**
  * stmmac_mdio_reset
  * @bus: points to the mii_bus structure
@@ -418,14 +361,8 @@ int stmmac_mdio_reset(struct mii_bus *bus)
 #ifdef CONFIG_OF
 	if (priv->device->of_node) {
 		struct gpio_desc *reset_gpio;
-		bool reset_gp_out;
 		u32 delays[3] = { 0, 0, 0 };
 
-		reset_gp_out = of_property_read_bool(priv->device->of_node,
-						     "snps,reset-gp-out");
-		if (reset_gp_out)
-			return stmmac_mdio_reset_gp_out(priv);
-
 		reset_gpio = devm_gpiod_get_optional(priv->device,
 						     "snps,reset",
 						     GPIOD_OUT_LOW);
-- 
2.33.3