[PATCH] PHY: Add support for configuring the PHY connection interface (e8a2b6a4) · Commits · 戴 / test

Documentation/networking/phy.txt

+9 −4

Original line number	Diff line number	Diff line

		-------
		PHY Abstraction Layer
		(Updated 2005-07-21)
		(Updated 2006-11-30)

		Purpose

		@@ -97,11 +97,12 @@ Letting the PHY Abstraction Layer do Everything

		Next, you need to know the device name of the PHY connected to this device.
		The name will look something like, "phy0:0", where the first number is the
		bus id, and the second is the PHY's address on that bus.
		bus id, and the second is the PHY's address on that bus. Typically,
		the bus is responsible for making its ID unique.

		Now, to connect, just call this function:

		phydev = phy_connect(dev, phy_name, &adjust_link, flags);
		phydev = phy_connect(dev, phy_name, &adjust_link, flags, interface);

		phydev is a pointer to the phy_device structure which represents the PHY. If
		phy_connect is successful, it will return the pointer. dev, here, is the
		@@ -115,6 +116,10 @@ Letting the PHY Abstraction Layer do Everything
		This is useful if the system has put hardware restrictions on
		the PHY/controller, of which the PHY needs to be aware.

		interface is a u32 which specifies the connection type used
		between the controller and the PHY. Examples are GMII, MII,
		RGMII, and SGMII. For a full list, see include/linux/phy.h

		Now just make sure that phydev->supported and phydev->advertising have any
		values pruned from them which don't make sense for your controller (a 10/100
		controller may be connected to a gigabit capable PHY, so you would need to
		@@ -191,7 +196,7 @@ Doing it all yourself
		start, or disables then frees them for stop.

		struct phy_device * phy_attach(struct net_device dev, const char phy_id,
		u32 flags);
		u32 flags, phy_interface_t interface);

		Attaches a network device to a particular PHY, binding the PHY to a generic
		driver if none was found during bus initialization. Passes in

drivers/net/au1000_eth.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -360,7 +360,8 @@ static int mii_probe (struct net_device *dev)
		BUG_ON(!phydev);
		BUG_ON(phydev->attached_dev);

		phydev = phy_connect(dev, phydev->dev.bus_id, &au1000_adjust_link, 0);
		phydev = phy_connect(dev, phydev->dev.bus_id, &au1000_adjust_link, 0,
		PHY_INTERFACE_MODE_MII);

		if (IS_ERR(phydev)) {
		printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);

drivers/net/fs_enet/fs_enet-main.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -779,7 +779,8 @@ static int fs_init_phy(struct net_device *dev)
		fep->oldspeed = 0;
		fep->oldduplex = -1;
		if(fep->fpi->bus_id)
		phydev = phy_connect(dev, fep->fpi->bus_id, &fs_adjust_link, 0);
		phydev = phy_connect(dev, fep->fpi->bus_id, &fs_adjust_link, 0,
		PHY_INTERFACE_MODE_MII);
		else {
		printk("No phy bus ID specified in BSP code\n");
		return -EINVAL;

drivers/net/gianfar.c

+37 −2

Original line number	Diff line number	Diff line
		@@ -9,7 +9,7 @@
		* Author: Andy Fleming
		* Maintainer: Kumar Gala
		*
		* Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
		* Copyright (c) 2002-2006 Freescale Semiconductor, Inc.
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms of the GNU General Public License as published by the
		@@ -398,6 +398,38 @@ static int gfar_remove(struct platform_device *pdev)
		}


		/* Reads the controller's registers to determine what interface
		* connects it to the PHY.
		*/
		static phy_interface_t gfar_get_interface(struct net_device *dev)
		{
		struct gfar_private *priv = netdev_priv(dev);
		u32 ecntrl = gfar_read(&priv->regs->ecntrl);

		if (ecntrl & ECNTRL_SGMII_MODE)
		return PHY_INTERFACE_MODE_SGMII;

		if (ecntrl & ECNTRL_TBI_MODE) {
		if (ecntrl & ECNTRL_REDUCED_MODE)
		return PHY_INTERFACE_MODE_RTBI;
		else
		return PHY_INTERFACE_MODE_TBI;
		}

		if (ecntrl & ECNTRL_REDUCED_MODE) {
		if (ecntrl & ECNTRL_REDUCED_MII_MODE)
		return PHY_INTERFACE_MODE_RMII;
		else
		return PHY_INTERFACE_MODE_RGMII;
		}

		if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT)
		return PHY_INTERFACE_MODE_GMII;

		return PHY_INTERFACE_MODE_MII;
		}


		/* Initializes driver's PHY state, and attaches to the PHY.
		* Returns 0 on success.
		*/
		@@ -409,6 +441,7 @@ static int init_phy(struct net_device *dev)
		SUPPORTED_1000baseT_Full : 0;
		struct phy_device *phydev;
		char phy_id[BUS_ID_SIZE];
		phy_interface_t interface;

		priv->oldlink = 0;
		priv->oldspeed = 0;
		@@ -416,7 +449,9 @@ static int init_phy(struct net_device *dev)

		snprintf(phy_id, BUS_ID_SIZE, PHY_ID_FMT, priv->einfo->bus_id, priv->einfo->phy_id);

		phydev = phy_connect(dev, phy_id, &adjust_link, 0);
		interface = gfar_get_interface(dev);

		phydev = phy_connect(dev, phy_id, &adjust_link, 0, interface);

		if (IS_ERR(phydev)) {
		printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);

drivers/net/gianfar.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -160,7 +160,10 @@ extern const char gfar_driver_version[];

		#define ECNTRL_INIT_SETTINGS 0x00001000
		#define ECNTRL_TBI_MODE 0x00000020
		#define ECNTRL_REDUCED_MODE 0x00000010
		#define ECNTRL_R100 0x00000008
		#define ECNTRL_REDUCED_MII_MODE 0x00000004
		#define ECNTRL_SGMII_MODE 0x00000002

		#define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE

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