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Date:   Tue, 17 Mar 2020 10:18:51 +0100
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     netdev@...r.kernel.org
Cc:     Joao Pinto <Joao.Pinto@...opsys.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>
Subject: [PATCH net-next 2/4] net: stmmac: Add XLGMII support

Add XLGMII support for stmmac including the list of speeds and defines
for them.

Signed-off-by: Jose Abreu <Jose.Abreu@...opsys.com>

---
Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: Alexandre Torgue <alexandre.torgue@...com>
Cc: Jose Abreu <joabreu@...opsys.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc: netdev@...r.kernel.org
Cc: linux-stm32@...md-mailman.stormreply.com
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Florian Fainelli <f.fainelli@...il.com>
Cc: Heiner Kallweit <hkallweit1@...il.com>
Cc: Russell King <linux@...linux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/common.h      |  6 +++
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 58 +++++++++++++++++++++++
 2 files changed, 64 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 9bdbf589d93f..7fd073144bac 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -426,6 +426,12 @@ struct mac_link {
 		u32 speed5000;
 		u32 speed10000;
 	} xgmii;
+	struct {
+		u32 speed25000;
+		u32 speed40000;
+		u32 speed50000;
+		u32 speed100000;
+	} xlgmii;
 };
 
 struct mii_regs {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index f26699d9a050..0e8c80f23557 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -849,6 +849,38 @@ static void stmmac_validate(struct phylink_config *config,
 			phylink_set(mac_supported, 10000baseKX4_Full);
 			phylink_set(mac_supported, 10000baseKR_Full);
 		}
+		if (!max_speed || (max_speed >= 25000)) {
+			phylink_set(mac_supported, 25000baseCR_Full);
+			phylink_set(mac_supported, 25000baseKR_Full);
+			phylink_set(mac_supported, 25000baseSR_Full);
+		}
+		if (!max_speed || (max_speed >= 40000)) {
+			phylink_set(mac_supported, 40000baseKR4_Full);
+			phylink_set(mac_supported, 40000baseCR4_Full);
+			phylink_set(mac_supported, 40000baseSR4_Full);
+			phylink_set(mac_supported, 40000baseLR4_Full);
+		}
+		if (!max_speed || (max_speed >= 50000)) {
+			phylink_set(mac_supported, 50000baseCR2_Full);
+			phylink_set(mac_supported, 50000baseKR2_Full);
+			phylink_set(mac_supported, 50000baseSR2_Full);
+			phylink_set(mac_supported, 50000baseKR_Full);
+			phylink_set(mac_supported, 50000baseSR_Full);
+			phylink_set(mac_supported, 50000baseCR_Full);
+			phylink_set(mac_supported, 50000baseLR_ER_FR_Full);
+			phylink_set(mac_supported, 50000baseDR_Full);
+		}
+		if (!max_speed || (max_speed >= 100000)) {
+			phylink_set(mac_supported, 100000baseKR4_Full);
+			phylink_set(mac_supported, 100000baseSR4_Full);
+			phylink_set(mac_supported, 100000baseCR4_Full);
+			phylink_set(mac_supported, 100000baseLR4_ER4_Full);
+			phylink_set(mac_supported, 100000baseKR2_Full);
+			phylink_set(mac_supported, 100000baseSR2_Full);
+			phylink_set(mac_supported, 100000baseCR2_Full);
+			phylink_set(mac_supported, 100000baseLR2_ER2_FR2_Full);
+			phylink_set(mac_supported, 100000baseDR2_Full);
+		}
 	}
 
 	/* Half-Duplex can only work with single queue */
@@ -929,6 +961,32 @@ static void stmmac_mac_link_up(struct phylink_config *config,
 		default:
 			return;
 		}
+	} else if (interface == PHY_INTERFACE_MODE_XLGMII) {
+		switch (speed) {
+		case SPEED_100000:
+			ctrl |= priv->hw->link.xlgmii.speed100000;
+			break;
+		case SPEED_50000:
+			ctrl |= priv->hw->link.xlgmii.speed50000;
+			break;
+		case SPEED_40000:
+			ctrl |= priv->hw->link.xlgmii.speed40000;
+			break;
+		case SPEED_25000:
+			ctrl |= priv->hw->link.xlgmii.speed25000;
+			break;
+		case SPEED_10000:
+			ctrl |= priv->hw->link.xgmii.speed10000;
+			break;
+		case SPEED_2500:
+			ctrl |= priv->hw->link.speed2500;
+			break;
+		case SPEED_1000:
+			ctrl |= priv->hw->link.speed1000;
+			break;
+		default:
+			return;
+		}
 	} else {
 		switch (speed) {
 		case SPEED_2500:
-- 
2.7.4

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