ibm_emac: Remove the ibm_emac driver

The arch/ppc sub-tree has been removed in the powerpc git tree.  The old
ibm_emac driver is no longer used by anything as a result of this.  This
removes it, leaving the ibm_newemac driver as the proper driver to use for
PowerPC boards with the EMAC hardware.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 0 insertions, 398 deletions

diff --git a/drivers/net/ibm_emac/ibm_emac_phy.c b/drivers/net/ibm_emac/ibm_emac_phy.c
deleted file mode 100644
index e57862b34cae..000000000000
--- a/drivers/net/ibm_emac/ibm_emac_phy.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/*
- * drivers/net/ibm_emac/ibm_emac_phy.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, PHY support.
- * Borrowed from sungem_phy.c, though I only kept the generic MII
- * driver for now.
- * 
- * This file should be shared with other drivers or eventually
- * merged as the "low level" part of miilib
- * 
- * (c) 2003, Benjamin Herrenscmidt (benh@kernel.crashing.org)
- * (c) 2004-2005, Eugene Surovegin <ebs@ebshome.net>
- *
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/delay.h>
-
-#include <asm/ocp.h>
-
-#include "ibm_emac_core.h"
-#include "ibm_emac_phy.h"
-
-static inline int phy_read(struct mii_phy *phy, int reg)
-{
-	return phy->mdio_read(phy->dev, phy->address, reg);
-}
-
-static inline void phy_write(struct mii_phy *phy, int reg, int val)
-{
-	phy->mdio_write(phy->dev, phy->address, reg, val);
-}
-
-/*
- * polls MII_BMCR until BMCR_RESET bit clears or operation times out.
- *
- * returns:
- *	>= 0 => success, value in BMCR returned to caller
- *	-EBUSY => failure, RESET bit never cleared
- *	otherwise => failure, lower level PHY read failed
- */
-static int mii_spin_reset_complete(struct mii_phy *phy)
-{
-	int val;
-	int limit = 10000;
-
-	while (limit--) {
-		val = phy_read(phy, MII_BMCR);
-		if (val >= 0 && !(val & BMCR_RESET))
-			return val;	/* success */
-		udelay(10);
-	}
-	if (val & BMCR_RESET)
-		val = -EBUSY;
-
-	if (net_ratelimit())
-		printk(KERN_ERR "emac%d: PHY reset timeout (%d)\n", 
-		       ((struct ocp_enet_private *)phy->dev->priv)->def->index,
-		       val);
-	return val;		    
-}
-
-int mii_reset_phy(struct mii_phy *phy)
-{
-	int val;
-
-	val = phy_read(phy, MII_BMCR);
-	val &= ~BMCR_ISOLATE;
-	val |= BMCR_RESET;
-	phy_write(phy, MII_BMCR, val);
-
-	udelay(300);
-
-	val = mii_spin_reset_complete(phy);
-	if (val >= 0 && (val & BMCR_ISOLATE))
-		phy_write(phy, MII_BMCR, val & ~BMCR_ISOLATE);
-
-	return val < 0;
-}
-
-static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
-{
-	int ctl, adv;
-
-	phy->autoneg = AUTONEG_ENABLE;
-	phy->speed = SPEED_10;
-	phy->duplex = DUPLEX_HALF;
-	phy->pause = phy->asym_pause = 0;
-	phy->advertising = advertise;
-
-	/* Setup standard advertise */
-	adv = phy_read(phy, MII_ADVERTISE);
-	if (adv < 0)
-		return adv;
-	adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
-		 ADVERTISE_PAUSE_ASYM);
-	if (advertise & ADVERTISED_10baseT_Half)
-		adv |= ADVERTISE_10HALF;
-	if (advertise & ADVERTISED_10baseT_Full)
-		adv |= ADVERTISE_10FULL;
-	if (advertise & ADVERTISED_100baseT_Half)
-		adv |= ADVERTISE_100HALF;
-	if (advertise & ADVERTISED_100baseT_Full)
-		adv |= ADVERTISE_100FULL;
-	if (advertise & ADVERTISED_Pause)
-		adv |= ADVERTISE_PAUSE_CAP;
-	if (advertise & ADVERTISED_Asym_Pause)
-		adv |= ADVERTISE_PAUSE_ASYM;
-	phy_write(phy, MII_ADVERTISE, adv);
-
-	if (phy->features &
-	    (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)) {
-		adv = phy_read(phy, MII_CTRL1000);
-		if (adv < 0)
-			return adv;
-		adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
-		if (advertise & ADVERTISED_1000baseT_Full)
-			adv |= ADVERTISE_1000FULL;
-		if (advertise & ADVERTISED_1000baseT_Half)
-			adv |= ADVERTISE_1000HALF;
-		phy_write(phy, MII_CTRL1000, adv);
-	}
-
-	/* Start/Restart aneg */
-	/* on some PHYs (e.g. National DP83843) a write to MII_ADVERTISE
-	 * causes BMCR_RESET to be set on the next read of MII_BMCR, which
-	 * if not checked for causes the PHY to be reset below */
-	ctl = mii_spin_reset_complete(phy);
-	if (ctl < 0)
-		return ctl;
-
-	ctl |= BMCR_ANENABLE | BMCR_ANRESTART;
-	phy_write(phy, MII_BMCR, ctl);
-
-	return 0;
-}
-
-static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd)
-{
-	int ctl;
-
-	phy->autoneg = AUTONEG_DISABLE;
-	phy->speed = speed;
-	phy->duplex = fd;
-	phy->pause = phy->asym_pause = 0;
-
-	/* First reset the PHY */
-	mii_reset_phy(phy);
-
-	ctl = phy_read(phy, MII_BMCR);
-	if (ctl < 0)
-		return ctl;
-	ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_ANENABLE | BMCR_SPEED1000);
-
-	/* Select speed & duplex */
-	switch (speed) {
-	case SPEED_10:
-		break;
-	case SPEED_100:
-		ctl |= BMCR_SPEED100;
-		break;
-	case SPEED_1000:
-		ctl |= BMCR_SPEED1000;
-		break;
-	default:
-		return -EINVAL;
-	}
-	if (fd == DUPLEX_FULL)
-		ctl |= BMCR_FULLDPLX;
-	phy_write(phy, MII_BMCR, ctl);
-
-	return 0;
-}
-
-static int genmii_poll_link(struct mii_phy *phy)
-{
-	int status;
-
-	/* Clear latched value with dummy read */
-	phy_read(phy, MII_BMSR);
-	status = phy_read(phy, MII_BMSR);
-	if (status < 0 || (status & BMSR_LSTATUS) == 0)
-		return 0;
-	if (phy->autoneg == AUTONEG_ENABLE && !(status & BMSR_ANEGCOMPLETE))
-		return 0;
-	return 1;
-}
-
-static int genmii_read_link(struct mii_phy *phy)
-{
-	if (phy->autoneg == AUTONEG_ENABLE) {
-		int glpa = 0;
-		int lpa = phy_read(phy, MII_LPA) & phy_read(phy, MII_ADVERTISE);
-		if (lpa < 0)
-			return lpa;
-
-		if (phy->features &
-		    (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)) {
-			int adv = phy_read(phy, MII_CTRL1000);
-			glpa = phy_read(phy, MII_STAT1000);
-
-			if (glpa < 0 || adv < 0)
-				return adv;
-
-			glpa &= adv << 2;
-		}
-
-		phy->speed = SPEED_10;
-		phy->duplex = DUPLEX_HALF;
-		phy->pause = phy->asym_pause = 0;
-
-		if (glpa & (LPA_1000FULL | LPA_1000HALF)) {
-			phy->speed = SPEED_1000;
-			if (glpa & LPA_1000FULL)
-				phy->duplex = DUPLEX_FULL;
-		} else if (lpa & (LPA_100FULL | LPA_100HALF)) {
-			phy->speed = SPEED_100;
-			if (lpa & LPA_100FULL)
-				phy->duplex = DUPLEX_FULL;
-		} else if (lpa & LPA_10FULL)
-			phy->duplex = DUPLEX_FULL;
-
-		if (phy->duplex == DUPLEX_FULL) {
-			phy->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
-			phy->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
-		}
-	} else {
-		int bmcr = phy_read(phy, MII_BMCR);
-		if (bmcr < 0)
-			return bmcr;
-
-		if (bmcr & BMCR_FULLDPLX)
-			phy->duplex = DUPLEX_FULL;
-		else
-			phy->duplex = DUPLEX_HALF;
-		if (bmcr & BMCR_SPEED1000)
-			phy->speed = SPEED_1000;
-		else if (bmcr & BMCR_SPEED100)
-			phy->speed = SPEED_100;
-		else
-			phy->speed = SPEED_10;
-
-		phy->pause = phy->asym_pause = 0;
-	}
-	return 0;
-}
-
-/* Generic implementation for most 10/100/1000 PHYs */
-static struct mii_phy_ops generic_phy_ops = {
-	.setup_aneg	= genmii_setup_aneg,
-	.setup_forced	= genmii_setup_forced,
-	.poll_link	= genmii_poll_link,
-	.read_link	= genmii_read_link
-};
-
-static struct mii_phy_def genmii_phy_def = {
-	.phy_id		= 0x00000000,
-	.phy_id_mask	= 0x00000000,
-	.name		= "Generic MII",
-	.ops		= &generic_phy_ops
-};
-
-/* CIS8201 */
-#define MII_CIS8201_10BTCSR	0x16
-#define  TENBTCSR_ECHO_DISABLE	0x2000
-#define MII_CIS8201_EPCR	0x17
-#define  EPCR_MODE_MASK		0x3000
-#define  EPCR_GMII_MODE		0x0000
-#define  EPCR_RGMII_MODE	0x1000
-#define  EPCR_TBI_MODE		0x2000
-#define  EPCR_RTBI_MODE		0x3000
-#define MII_CIS8201_ACSR	0x1c
-#define  ACSR_PIN_PRIO_SELECT	0x0004
-
-static int cis8201_init(struct mii_phy *phy)
-{
-	int epcr;
-
-	epcr = phy_read(phy, MII_CIS8201_EPCR);
-	if (epcr < 0)
-		return epcr;
-
-	epcr &= ~EPCR_MODE_MASK;
-
-	switch (phy->mode) {
-	case PHY_MODE_TBI:
-		epcr |= EPCR_TBI_MODE;
-		break;
-	case PHY_MODE_RTBI:
-		epcr |= EPCR_RTBI_MODE;
-		break;
-	case PHY_MODE_GMII:
-		epcr |= EPCR_GMII_MODE;
-		break;
-	case PHY_MODE_RGMII:
-	default:
-		epcr |= EPCR_RGMII_MODE;
-	}
-
-	phy_write(phy, MII_CIS8201_EPCR, epcr);
-	
-	/* MII regs override strap pins */
-	phy_write(phy, MII_CIS8201_ACSR, 
-		  phy_read(phy, MII_CIS8201_ACSR) | ACSR_PIN_PRIO_SELECT);
-
-	/* Disable TX_EN -> CRS echo mode, otherwise 10/HDX doesn't work */
-	phy_write(phy, MII_CIS8201_10BTCSR,
-		  phy_read(phy, MII_CIS8201_10BTCSR) | TENBTCSR_ECHO_DISABLE);
-
-	return 0;
-}
-
-static struct mii_phy_ops cis8201_phy_ops = {
-	.init		= cis8201_init,
-	.setup_aneg	= genmii_setup_aneg,
-	.setup_forced	= genmii_setup_forced,
-	.poll_link	= genmii_poll_link,
-	.read_link	= genmii_read_link
-};
-
-static struct mii_phy_def cis8201_phy_def = {
-	.phy_id		= 0x000fc410,
-	.phy_id_mask	= 0x000ffff0,
-	.name		= "CIS8201 Gigabit Ethernet",
-	.ops		= &cis8201_phy_ops
-};
-
-static struct mii_phy_def *mii_phy_table[] = {
-	&cis8201_phy_def,
-	&genmii_phy_def,
-	NULL
-};
-
-int mii_phy_probe(struct mii_phy *phy, int address)
-{
-	struct mii_phy_def *def;
-	int i;
-	int id;
-
-	phy->autoneg = AUTONEG_DISABLE;
-	phy->advertising = 0;
-	phy->address = address;
-	phy->speed = SPEED_10;
-	phy->duplex = DUPLEX_HALF;
-	phy->pause = phy->asym_pause = 0;
-
-	/* Take PHY out of isolate mode and reset it. */
-	if (mii_reset_phy(phy))
-		return -ENODEV;
-
-	/* Read ID and find matching entry */
-	id = (phy_read(phy, MII_PHYSID1) << 16) | phy_read(phy, MII_PHYSID2);
-	if (id < 0)
-		return -ENODEV;
-	for (i = 0; (def = mii_phy_table[i]) != NULL; i++)
-		if ((id & def->phy_id_mask) == def->phy_id)
-			break;
-	/* Should never be NULL (we have a generic entry), but... */
-	if (!def)
-		return -ENODEV;
-
-	phy->def = def;
-
-	/* Determine PHY features if needed */
-	phy->features = def->features;
-	if (!phy->features) {
-		u16 bmsr = phy_read(phy, MII_BMSR);
-		if (bmsr & BMSR_ANEGCAPABLE)
-			phy->features |= SUPPORTED_Autoneg;
-		if (bmsr & BMSR_10HALF)
-			phy->features |= SUPPORTED_10baseT_Half;
-		if (bmsr & BMSR_10FULL)
-			phy->features |= SUPPORTED_10baseT_Full;
-		if (bmsr & BMSR_100HALF)
-			phy->features |= SUPPORTED_100baseT_Half;
-		if (bmsr & BMSR_100FULL)
-			phy->features |= SUPPORTED_100baseT_Full;
-		if (bmsr & BMSR_ESTATEN) {
-			u16 esr = phy_read(phy, MII_ESTATUS);
-			if (esr & ESTATUS_1000_TFULL)
-				phy->features |= SUPPORTED_1000baseT_Full;
-			if (esr & ESTATUS_1000_THALF)
-				phy->features |= SUPPORTED_1000baseT_Half;
-		}
-		phy->features |= SUPPORTED_MII;
-	}
-
-	/* Setup default advertising */
-	phy->advertising = phy->features;
-
-	return 0;
-}
-
-MODULE_LICENSE("GPL");