netdev - [RFC Patch net-next 09/10] net: dsa: microchip: ksz8795: use common xmii function

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Date:   Tue, 12 Jul 2022 21:33:07 +0530
From:   Arun Ramadoss <arun.ramadoss@...rochip.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     Woojung Huh <woojung.huh@...rochip.com>,
        <UNGLinuxDriver@...rochip.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Russell King" <linux@...linux.org.uk>
Subject: [RFC Patch net-next 09/10] net: dsa: microchip: ksz8795: use common xmii function

This patch updates the ksz8795 cpu configuration to use the ksz common
xmii set functions.

Signed-off-by: Arun Ramadoss <arun.ramadoss@...rochip.com>
---
 drivers/net/dsa/microchip/ksz8795.c     | 35 +------------------------
 drivers/net/dsa/microchip/ksz8795_reg.h |  8 ------
 2 files changed, 1 insertion(+), 42 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 911aace42284..8f807d8eace5 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1116,7 +1116,6 @@ void ksz8_port_mirror_del(struct ksz_device *dev, int port,
 static void ksz8795_cpu_interface_select(struct ksz_device *dev, int port)
 {
 	struct ksz_port *p = &dev->ports[port];
-	u8 data8;
 
 	if (!p->interface && dev->compat_interface) {
 		dev_warn(dev->dev,
@@ -1126,39 +1125,7 @@ static void ksz8795_cpu_interface_select(struct ksz_device *dev, int port)
 		p->interface = dev->compat_interface;
 	}
 
-	/* Configure MII interface for proper network communication. */
-	ksz_read8(dev, REG_PORT_5_CTRL_6, &data8);
-	data8 &= ~PORT_INTERFACE_TYPE;
-	data8 &= ~PORT_GMII_1GPS_MODE;
-	switch (p->interface) {
-	case PHY_INTERFACE_MODE_MII:
-		p->phydev.speed = SPEED_100;
-		break;
-	case PHY_INTERFACE_MODE_RMII:
-		data8 |= PORT_INTERFACE_RMII;
-		p->phydev.speed = SPEED_100;
-		break;
-	case PHY_INTERFACE_MODE_GMII:
-		data8 |= PORT_GMII_1GPS_MODE;
-		data8 |= PORT_INTERFACE_GMII;
-		p->phydev.speed = SPEED_1000;
-		break;
-	default:
-		data8 &= ~PORT_RGMII_ID_IN_ENABLE;
-		data8 &= ~PORT_RGMII_ID_OUT_ENABLE;
-		if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
-		    p->interface == PHY_INTERFACE_MODE_RGMII_RXID)
-			data8 |= PORT_RGMII_ID_IN_ENABLE;
-		if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
-		    p->interface == PHY_INTERFACE_MODE_RGMII_TXID)
-			data8 |= PORT_RGMII_ID_OUT_ENABLE;
-		data8 |= PORT_GMII_1GPS_MODE;
-		data8 |= PORT_INTERFACE_RGMII;
-		p->phydev.speed = SPEED_1000;
-		break;
-	}
-	ksz_write8(dev, REG_PORT_5_CTRL_6, data8);
-	p->phydev.duplex = 1;
+	ksz_set_xmii(dev, port, p->interface);
 }
 
 void ksz8_port_setup(struct ksz_device *dev, int port, bool cpu_port)
diff --git a/drivers/net/dsa/microchip/ksz8795_reg.h b/drivers/net/dsa/microchip/ksz8795_reg.h
index a848eb4c54cb..77487d611824 100644
--- a/drivers/net/dsa/microchip/ksz8795_reg.h
+++ b/drivers/net/dsa/microchip/ksz8795_reg.h
@@ -170,15 +170,7 @@
 #define REG_PORT_5_CTRL_6		0x56
 
 #define PORT_MII_INTERNAL_CLOCK		BIT(7)
-#define PORT_GMII_1GPS_MODE		BIT(6)
-#define PORT_RGMII_ID_IN_ENABLE		BIT(4)
-#define PORT_RGMII_ID_OUT_ENABLE	BIT(3)
 #define PORT_GMII_MAC_MODE		BIT(2)
-#define PORT_INTERFACE_TYPE		0x3
-#define PORT_INTERFACE_MII		0
-#define PORT_INTERFACE_RMII		1
-#define PORT_INTERFACE_GMII		2
-#define PORT_INTERFACE_RGMII		3
 
 #define REG_PORT_1_CTRL_7		0x17
 #define REG_PORT_2_CTRL_7		0x27
-- 
2.36.1