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Diffstat (limited to 'drivers/net/ibm_emac/ibm_emac_phy.c')
-rw-r--r--drivers/net/ibm_emac/ibm_emac_phy.c298
1 files changed, 0 insertions, 298 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 14213f090e9..00000000000
--- a/drivers/net/ibm_emac/ibm_emac_phy.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * ibm_ocp_phy.c
- *
- * PHY drivers for the ibm ocp ethernet driver. 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)
- *
- */
-
-#include <linux/config.h>
-
-#include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/delay.h>
-
-#include "ibm_emac_phy.h"
-
-static int reset_one_mii_phy(struct mii_phy *phy, int phy_id)
-{
- u16 val;
- int limit = 10000;
-
- val = __phy_read(phy, phy_id, MII_BMCR);
- val &= ~BMCR_ISOLATE;
- val |= BMCR_RESET;
- __phy_write(phy, phy_id, MII_BMCR, val);
-
- udelay(100);
-
- while (limit--) {
- val = __phy_read(phy, phy_id, MII_BMCR);
- if ((val & BMCR_RESET) == 0)
- break;
- udelay(10);
- }
- if ((val & BMCR_ISOLATE) && limit > 0)
- __phy_write(phy, phy_id, MII_BMCR, val & ~BMCR_ISOLATE);
-
- return (limit <= 0);
-}
-
-static int cis8201_init(struct mii_phy *phy)
-{
- u16 epcr;
-
- epcr = phy_read(phy, MII_CIS8201_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);
-
- return 0;
-}
-
-static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
-{
- u16 ctl, adv;
-
- phy->autoneg = 1;
- phy->speed = SPEED_10;
- phy->duplex = DUPLEX_HALF;
- phy->pause = 0;
- phy->advertising = advertise;
-
- /* Setup standard advertise */
- adv = phy_read(phy, MII_ADVERTISE);
- adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
- 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;
- phy_write(phy, MII_ADVERTISE, adv);
-
- /* Start/Restart aneg */
- ctl = phy_read(phy, MII_BMCR);
- 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)
-{
- u16 ctl;
-
- phy->autoneg = 0;
- phy->speed = speed;
- phy->duplex = fd;
- phy->pause = 0;
-
- ctl = phy_read(phy, MII_BMCR);
- ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_ANENABLE);
-
- /* First reset the PHY */
- phy_write(phy, MII_BMCR, ctl | BMCR_RESET);
-
- /* Select speed & duplex */
- switch (speed) {
- case SPEED_10:
- break;
- case SPEED_100:
- ctl |= BMCR_SPEED100;
- break;
- case SPEED_1000:
- 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)
-{
- u16 status;
-
- (void)phy_read(phy, MII_BMSR);
- status = phy_read(phy, MII_BMSR);
- if ((status & BMSR_LSTATUS) == 0)
- return 0;
- if (phy->autoneg && !(status & BMSR_ANEGCOMPLETE))
- return 0;
- return 1;
-}
-
-#define MII_CIS8201_ACSR 0x1c
-#define ACSR_DUPLEX_STATUS 0x0020
-#define ACSR_SPEED_1000BASET 0x0010
-#define ACSR_SPEED_100BASET 0x0008
-
-static int cis8201_read_link(struct mii_phy *phy)
-{
- u16 acsr;
-
- if (phy->autoneg) {
- acsr = phy_read(phy, MII_CIS8201_ACSR);
-
- if (acsr & ACSR_DUPLEX_STATUS)
- phy->duplex = DUPLEX_FULL;
- else
- phy->duplex = DUPLEX_HALF;
- if (acsr & ACSR_SPEED_1000BASET) {
- phy->speed = SPEED_1000;
- } else if (acsr & ACSR_SPEED_100BASET)
- phy->speed = SPEED_100;
- else
- phy->speed = SPEED_10;
- phy->pause = 0;
- }
- /* On non-aneg, we assume what we put in BMCR is the speed,
- * though magic-aneg shouldn't prevent this case from occurring
- */
-
- return 0;
-}
-
-static int genmii_read_link(struct mii_phy *phy)
-{
- u16 lpa;
-
- if (phy->autoneg) {
- lpa = phy_read(phy, MII_LPA) & phy_read(phy, MII_ADVERTISE);
-
- phy->speed = SPEED_10;
- phy->duplex = DUPLEX_HALF;
- phy->pause = 0;
-
- 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;
- }
- /* On non-aneg, we assume what we put in BMCR is the speed,
- * though magic-aneg shouldn't prevent this case from occurring
- */
-
- return 0;
-}
-
-#define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
- SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
- SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII)
-#define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \
- SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full)
-
-/* CIS8201 phy ops */
-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:cis8201_read_link
-};
-
-/* Generic implementation for most 10/100 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 cis8201_phy_def = {
- phy_id:0x000fc410,
- phy_id_mask:0x000ffff0,
- name:"CIS8201 Gigabit Ethernet",
- features:MII_GBIT_FEATURES,
- magic_aneg:0,
- ops:&cis8201_phy_ops
-};
-
-static struct mii_phy_def genmii_phy_def = {
- phy_id:0x00000000,
- phy_id_mask:0x00000000,
- name:"Generic MII",
- features:MII_BASIC_FEATURES,
- magic_aneg:0,
- ops:&generic_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 mii_id)
-{
- int rc;
- u32 id;
- struct mii_phy_def *def;
- int i;
-
- phy->autoneg = 0;
- phy->advertising = 0;
- phy->mii_id = mii_id;
- phy->speed = 0;
- phy->duplex = 0;
- phy->pause = 0;
-
- /* Take PHY out of isloate mode and reset it. */
- rc = reset_one_mii_phy(phy, mii_id);
- if (rc)
- return -ENODEV;
-
- /* Read ID and find matching entry */
- id = (phy_read(phy, MII_PHYSID1) << 16 | phy_read(phy, MII_PHYSID2))
- & 0xfffffff0;
- 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 == NULL)
- return -ENODEV;
-
- phy->def = def;
-
- /* Setup default advertising */
- phy->advertising = def->features;
-
- return 0;
-}
-
-MODULE_LICENSE("GPL");
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