summaryrefslogtreecommitdiffstats
path: root/drivers/net/ibm_newemac/phy.c
diff options
context:
space:
mode:
authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-05-13 23:29:12 +0200
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-11 11:41:59 +0200
commit9aa3283595451ca093500ff0977b106e1f465586 (patch)
tree89cd128f037b029b67f73fbff7d8cc38177c2b27 /drivers/net/ibm_newemac/phy.c
parents2io/vxge: Move the Exar drivers (diff)
downloadlinux-9aa3283595451ca093500ff0977b106e1f465586.tar.xz
linux-9aa3283595451ca093500ff0977b106e1f465586.zip
ehea/ibm*: Move the IBM drivers
Move the IBM drivers into drivers/net/ethernet/ibm/ and make the necessary Kconfig and Makefile changes. - Renamed ibm_new_emac to emac - Cleaned up Makefile and Kconfig options which referred to IBM_NEW_EMAC to IBM_EMAC - ibmlana driver is a National Semiconductor SONIC driver so it was not moved CC: Christoph Raisch <raisch@de.ibm.com> CC: Santiago Leon <santil@linux.vnet.ibm.com> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: David Gibson <dwg@au1.ibm.com> CC: Kyle Lucke <klucke@us.ibm.com> CC: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ibm_newemac/phy.c')
-rw-r--r--drivers/net/ibm_newemac/phy.c541
1 files changed, 0 insertions, 541 deletions
diff --git a/drivers/net/ibm_newemac/phy.c b/drivers/net/ibm_newemac/phy.c
deleted file mode 100644
index ab4e5969fe65..000000000000
--- a/drivers/net/ibm_newemac/phy.c
+++ /dev/null
@@ -1,541 +0,0 @@
-/*
- * drivers/net/ibm_newemac/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
- *
- * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
- * <benh@kernel.crashing.org>
- *
- * Based on the arch/ppc version of the driver:
- *
- * (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 "emac.h"
-#include "phy.h"
-
-#define phy_read _phy_read
-#define phy_write _phy_write
-
-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);
-}
-
-static inline int gpcs_phy_read(struct mii_phy *phy, int reg)
-{
- return phy->mdio_read(phy->dev, phy->gpcs_address, reg);
-}
-
-static inline void gpcs_phy_write(struct mii_phy *phy, int reg, int val)
-{
- phy->mdio_write(phy->dev, phy->gpcs_address, reg, val);
-}
-
-int emac_mii_reset_phy(struct mii_phy *phy)
-{
- int val;
- int limit = 10000;
-
- val = phy_read(phy, MII_BMCR);
- val &= ~(BMCR_ISOLATE | BMCR_ANENABLE);
- val |= BMCR_RESET;
- phy_write(phy, MII_BMCR, val);
-
- udelay(300);
-
- while (--limit) {
- val = phy_read(phy, MII_BMCR);
- if (val >= 0 && (val & BMCR_RESET) == 0)
- break;
- udelay(10);
- }
- if ((val & BMCR_ISOLATE) && limit > 0)
- phy_write(phy, MII_BMCR, val & ~BMCR_ISOLATE);
-
- return limit <= 0;
-}
-
-int emac_mii_reset_gpcs(struct mii_phy *phy)
-{
- int val;
- int limit = 10000;
-
- val = gpcs_phy_read(phy, MII_BMCR);
- val &= ~(BMCR_ISOLATE | BMCR_ANENABLE);
- val |= BMCR_RESET;
- gpcs_phy_write(phy, MII_BMCR, val);
-
- udelay(300);
-
- while (--limit) {
- val = gpcs_phy_read(phy, MII_BMCR);
- if (val >= 0 && (val & BMCR_RESET) == 0)
- break;
- udelay(10);
- }
- if ((val & BMCR_ISOLATE) && limit > 0)
- gpcs_phy_write(phy, MII_BMCR, val & ~BMCR_ISOLATE);
-
- if (limit > 0 && phy->mode == PHY_MODE_SGMII) {
- /* Configure GPCS interface to recommended setting for SGMII */
- gpcs_phy_write(phy, 0x04, 0x8120); /* AsymPause, FDX */
- gpcs_phy_write(phy, 0x07, 0x2801); /* msg_pg, toggle */
- gpcs_phy_write(phy, 0x00, 0x0140); /* 1Gbps, FDX */
- }
-
- return limit <= 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;
-
- ctl = phy_read(phy, MII_BMCR);
- if (ctl < 0)
- return ctl;
- ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE);
-
- /* First clear the PHY */
- phy_write(phy, MII_BMCR, ctl);
-
- /* 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 */
- 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)
-{
- int ctl;
-
- phy->autoneg = AUTONEG_DISABLE;
- phy->speed = speed;
- phy->duplex = fd;
- phy->pause = phy->asym_pause = 0;
-
- ctl = phy_read(phy, MII_BMCR);
- if (ctl < 0)
- return ctl;
- ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE);
-
- /* First clear 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:
- 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 bcm5248_phy_def = {
-
- .phy_id = 0x0143bc00,
- .phy_id_mask = 0x0ffffff0,
- .name = "BCM5248 10/100 SMII Ethernet",
- .ops = &generic_phy_ops
-};
-
-static int m88e1111_init(struct mii_phy *phy)
-{
- pr_debug("%s: Marvell 88E1111 Ethernet\n", __func__);
- phy_write(phy, 0x14, 0x0ce3);
- phy_write(phy, 0x18, 0x4101);
- phy_write(phy, 0x09, 0x0e00);
- phy_write(phy, 0x04, 0x01e1);
- phy_write(phy, 0x00, 0x9140);
- phy_write(phy, 0x00, 0x1140);
-
- return 0;
-}
-
-static int m88e1112_init(struct mii_phy *phy)
-{
- /*
- * Marvell 88E1112 PHY needs to have the SGMII MAC
- * interace (page 2) properly configured to
- * communicate with the 460EX/GT GPCS interface.
- */
-
- u16 reg_short;
-
- pr_debug("%s: Marvell 88E1112 Ethernet\n", __func__);
-
- /* Set access to Page 2 */
- phy_write(phy, 0x16, 0x0002);
-
- phy_write(phy, 0x00, 0x0040); /* 1Gbps */
- reg_short = (u16)(phy_read(phy, 0x1a));
- reg_short |= 0x8000; /* bypass Auto-Negotiation */
- phy_write(phy, 0x1a, reg_short);
- emac_mii_reset_phy(phy); /* reset MAC interface */
-
- /* Reset access to Page 0 */
- phy_write(phy, 0x16, 0x0000);
-
- return 0;
-}
-
-static int et1011c_init(struct mii_phy *phy)
-{
- u16 reg_short;
-
- reg_short = (u16)(phy_read(phy, 0x16));
- reg_short &= ~(0x7);
- reg_short |= 0x6; /* RGMII Trace Delay*/
- phy_write(phy, 0x16, reg_short);
-
- reg_short = (u16)(phy_read(phy, 0x17));
- reg_short &= ~(0x40);
- phy_write(phy, 0x17, reg_short);
-
- phy_write(phy, 0x1c, 0x74f0);
- return 0;
-}
-
-static struct mii_phy_ops et1011c_phy_ops = {
- .init = et1011c_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 et1011c_phy_def = {
- .phy_id = 0x0282f000,
- .phy_id_mask = 0x0fffff00,
- .name = "ET1011C Gigabit Ethernet",
- .ops = &et1011c_phy_ops
-};
-
-
-
-
-
-static struct mii_phy_ops m88e1111_phy_ops = {
- .init = m88e1111_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 m88e1111_phy_def = {
-
- .phy_id = 0x01410CC0,
- .phy_id_mask = 0x0ffffff0,
- .name = "Marvell 88E1111 Ethernet",
- .ops = &m88e1111_phy_ops,
-};
-
-static struct mii_phy_ops m88e1112_phy_ops = {
- .init = m88e1112_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 m88e1112_phy_def = {
- .phy_id = 0x01410C90,
- .phy_id_mask = 0x0ffffff0,
- .name = "Marvell 88E1112 Ethernet",
- .ops = &m88e1112_phy_ops,
-};
-
-static struct mii_phy_def *mii_phy_table[] = {
- &et1011c_phy_def,
- &cis8201_phy_def,
- &bcm5248_phy_def,
- &m88e1111_phy_def,
- &m88e1112_phy_def,
- &genmii_phy_def,
- NULL
-};
-
-int emac_mii_phy_probe(struct mii_phy *phy, int address)
-{
- struct mii_phy_def *def;
- int i;
- u32 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 (emac_mii_reset_phy(phy))
- return -ENODEV;
-
- /* Read ID and find matching entry */
- id = (phy_read(phy, MII_PHYSID1) << 16) | phy_read(phy, MII_PHYSID2);
- 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");