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[PATCH] Freescale QE UCC gigabit ethernet driver

Browse source 
QE(QUICC Engine) is a new generation communication coprocessor, which can
be found on some of the latest Freescale PowerQUICC CPUs(e.g.  MPC8360).
The UCC(Unified Communications Controller) module of QE can work as gigabit
Ethernet device.  This patch provides driver for the device.

Signed-off-by: Shlomi Gridish <gridish@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Li Yang 2006-08-14 23:00:11 -07:00 committed by Jeff Garzik
parent e4c780b1ff
commit ce973b141d
6 changed files with 6665 additions and 0 deletions
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27
drivers/net/Kconfig
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@ -2219,6 +2219,33 @@ config GFAR_NAPI
bool "NAPI Support"
depends on GIANFAR
config UCC_GETH
tristate "Freescale QE UCC GETH"
depends on QUICC_ENGINE && UCC_FAST
help
This driver supports the Gigabit Ethernet mode of QE UCC.
QE can be found on MPC836x CPUs.
config UGETH_NAPI
bool "NAPI Support"
depends on UCC_GETH
config UGETH_MAGIC_PACKET
bool "Magic Packet detection support"
depends on UCC_GETH
config UGETH_FILTERING
bool "Mac address filtering support"
depends on UCC_GETH
config UGETH_TX_ON_DEMOND
bool "Transmit on Demond support"
depends on UCC_GETH
config UGETH_HAS_GIGA
bool
depends on UCC_GETH && MPC836x
config MV643XX_ETH
tristate "MV-643XX Ethernet support"
depends on MOMENCO_OCELOT_C || MOMENCO_JAGUAR_ATX || MV64360 || MOMENCO_OCELOT_3 || PPC_MULTIPLATFORM

3
drivers/net/Makefile
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@ -18,6 +18,9 @@ gianfar_driver-objs := gianfar.o \
gianfar_mii.o \
gianfar_sysfs.o
obj-$(CONFIG_UCC_GETH) += ucc_geth_driver.o
ucc_geth_driver-objs := ucc_geth.o ucc_geth_phy.o
#
# link order important here
#

4278
drivers/net/ucc_geth.c Normal file
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File diff suppressed because it is too large Load diff

1339
drivers/net/ucc_geth.h Normal file
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File diff suppressed because it is too large Load diff

801
drivers/net/ucc_geth_phy.c Normal file
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@ -0,0 +1,801 @@
/*
* Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
*
* Author: Shlomi Gridish <gridish@freescale.com>
*
* Description:
* UCC GETH Driver -- PHY handling
*
* Changelog:
* Jun 28, 2006 Li Yang <LeoLi@freescale.com>
* - Rearrange code and style fixes
*
* 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
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/crc32.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include "ucc_geth.h"
#include "ucc_geth_phy.h"
#include <platforms/83xx/mpc8360e_pb.h>
#define ugphy_printk(level, format, arg...) \
printk(level format "\n", ## arg)
#define ugphy_dbg(format, arg...) \
ugphy_printk(KERN_DEBUG, format , ## arg)
#define ugphy_err(format, arg...) \
ugphy_printk(KERN_ERR, format , ## arg)
#define ugphy_info(format, arg...) \
ugphy_printk(KERN_INFO, format , ## arg)
#define ugphy_warn(format, arg...) \
ugphy_printk(KERN_WARNING, format , ## arg)
#ifdef UGETH_VERBOSE_DEBUG
#define ugphy_vdbg ugphy_dbg
#else
#define ugphy_vdbg(fmt, args...) do { } while (0)
#endif /* UGETH_VERBOSE_DEBUG */
static void config_genmii_advert(struct ugeth_mii_info *mii_info);
static void genmii_setup_forced(struct ugeth_mii_info *mii_info);
static void genmii_restart_aneg(struct ugeth_mii_info *mii_info);
static int gbit_config_aneg(struct ugeth_mii_info *mii_info);
static int genmii_config_aneg(struct ugeth_mii_info *mii_info);
static int genmii_update_link(struct ugeth_mii_info *mii_info);
static int genmii_read_status(struct ugeth_mii_info *mii_info);
u16 phy_read(struct ugeth_mii_info *mii_info, u16 regnum);
void phy_write(struct ugeth_mii_info *mii_info, u16 regnum, u16 val);
static u8 *bcsr_regs = NULL;
/* Write value to the PHY for this device to the register at regnum, */
/* waiting until the write is done before it returns. All PHY */
/* configuration has to be done through the TSEC1 MIIM regs */
void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value)
{
ucc_geth_private_t *ugeth = netdev_priv(dev);
ucc_mii_mng_t *mii_regs;
enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum;
u32 tmp_reg;
ugphy_vdbg("%s: IN", __FUNCTION__);
spin_lock_irq(&ugeth->lock);
mii_regs = ugeth->mii_info->mii_regs;
/* Set this UCC to be the master of the MII managment */
ucc_set_qe_mux_mii_mng(ugeth->ug_info->uf_info.ucc_num);
/* Stop the MII management read cycle */
out_be32(&mii_regs->miimcom, 0);
/* Setting up the MII Mangement Address Register */
tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg;
out_be32(&mii_regs->miimadd, tmp_reg);
/* Setting up the MII Mangement Control Register with the value */
out_be32(&mii_regs->miimcon, (u32) value);
/* Wait till MII management write is complete */
while ((in_be32(&mii_regs->miimind)) & MIIMIND_BUSY)
cpu_relax();
spin_unlock_irq(&ugeth->lock);
udelay(10000);
}
/* Reads from register regnum in the PHY for device dev, */
/* returning the value. Clears miimcom first. All PHY */
/* configuration has to be done through the TSEC1 MIIM regs */
int read_phy_reg(struct net_device *dev, int mii_id, int regnum)
{
ucc_geth_private_t *ugeth = netdev_priv(dev);
ucc_mii_mng_t *mii_regs;
enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum;
u32 tmp_reg;
u16 value;
ugphy_vdbg("%s: IN", __FUNCTION__);
spin_lock_irq(&ugeth->lock);
mii_regs = ugeth->mii_info->mii_regs;
/* Setting up the MII Mangement Address Register */
tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg;
out_be32(&mii_regs->miimadd, tmp_reg);
/* Perform an MII management read cycle */
out_be32(&mii_regs->miimcom, MIIMCOM_READ_CYCLE);
/* Wait till MII management write is complete */
while ((in_be32(&mii_regs->miimind)) & MIIMIND_BUSY)
cpu_relax();
udelay(10000);
/* Read MII management status */
value = (u16) in_be32(&mii_regs->miimstat);
out_be32(&mii_regs->miimcom, 0);
if (value == 0xffff)
ugphy_warn("read wrong value : mii_id %d,mii_reg %d, base %08x",
mii_id, mii_reg, (u32) & (mii_regs->miimcfg));
spin_unlock_irq(&ugeth->lock);
return (value);
}
void mii_clear_phy_interrupt(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
if (mii_info->phyinfo->ack_interrupt)
mii_info->phyinfo->ack_interrupt(mii_info);
}
void mii_configure_phy_interrupt(struct ugeth_mii_info *mii_info,
u32 interrupts)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
mii_info->interrupts = interrupts;
if (mii_info->phyinfo->config_intr)
mii_info->phyinfo->config_intr(mii_info);
}
/* Writes MII_ADVERTISE with the appropriate values, after
* sanitizing advertise to make sure only supported features
* are advertised
*/
static void config_genmii_advert(struct ugeth_mii_info *mii_info)
{
u32 advertise;
u16 adv;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Only allow advertising what this PHY supports */
mii_info->advertising &= mii_info->phyinfo->features;
advertise = mii_info->advertising;
/* Setup standard advertisement */
adv = phy_read(mii_info, 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(mii_info, MII_ADVERTISE, adv);
}
static void genmii_setup_forced(struct ugeth_mii_info *mii_info)
{
u16 ctrl;
u32 features = mii_info->phyinfo->features;
ugphy_vdbg("%s: IN", __FUNCTION__);
ctrl = phy_read(mii_info, MII_BMCR);
ctrl &=
~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE);
ctrl |= BMCR_RESET;
switch (mii_info->speed) {
case SPEED_1000:
if (features & (SUPPORTED_1000baseT_Half
| SUPPORTED_1000baseT_Full)) {
ctrl |= BMCR_SPEED1000;
break;
}
mii_info->speed = SPEED_100;
case SPEED_100:
if (features & (SUPPORTED_100baseT_Half
| SUPPORTED_100baseT_Full)) {
ctrl |= BMCR_SPEED100;
break;
}
mii_info->speed = SPEED_10;
case SPEED_10:
if (features & (SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full))
break;
default: /* Unsupported speed! */
ugphy_err("%s: Bad speed!", mii_info->dev->name);
break;
}
phy_write(mii_info, MII_BMCR, ctrl);
}
/* Enable and Restart Autonegotiation */
static void genmii_restart_aneg(struct ugeth_mii_info *mii_info)
{
u16 ctl;
ugphy_vdbg("%s: IN", __FUNCTION__);
ctl = phy_read(mii_info, MII_BMCR);
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
phy_write(mii_info, MII_BMCR, ctl);
}
static int gbit_config_aneg(struct ugeth_mii_info *mii_info)
{
u16 adv;
u32 advertise;
ugphy_vdbg("%s: IN", __FUNCTION__);
if (mii_info->autoneg) {
/* Configure the ADVERTISE register */
config_genmii_advert(mii_info);
advertise = mii_info->advertising;
adv = phy_read(mii_info, MII_1000BASETCONTROL);
adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP |
MII_1000BASETCONTROL_HALFDUPLEXCAP);
if (advertise & SUPPORTED_1000baseT_Half)
adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP;
if (advertise & SUPPORTED_1000baseT_Full)
adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP;
phy_write(mii_info, MII_1000BASETCONTROL, adv);
/* Start/Restart aneg */
genmii_restart_aneg(mii_info);
} else
genmii_setup_forced(mii_info);
return 0;
}
static int genmii_config_aneg(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
if (mii_info->autoneg) {
config_genmii_advert(mii_info);
genmii_restart_aneg(mii_info);
} else
genmii_setup_forced(mii_info);
return 0;
}
static int genmii_update_link(struct ugeth_mii_info *mii_info)
{
u16 status;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Do a fake read */
phy_read(mii_info, MII_BMSR);
/* Read link and autonegotiation status */
status = phy_read(mii_info, MII_BMSR);
if ((status & BMSR_LSTATUS) == 0)
mii_info->link = 0;
else
mii_info->link = 1;
/* If we are autonegotiating, and not done,
* return an error */
if (mii_info->autoneg && !(status & BMSR_ANEGCOMPLETE))
return -EAGAIN;
return 0;
}
static int genmii_read_status(struct ugeth_mii_info *mii_info)
{
u16 status;
int err;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Update the link, but return if there
* was an error */
err = genmii_update_link(mii_info);
if (err)
return err;
if (mii_info->autoneg) {
status = phy_read(mii_info, MII_LPA);
if (status & (LPA_10FULL | LPA_100FULL))
mii_info->duplex = DUPLEX_FULL;
else
mii_info->duplex = DUPLEX_HALF;
if (status & (LPA_100FULL | LPA_100HALF))
mii_info->speed = SPEED_100;
else
mii_info->speed = SPEED_10;
mii_info->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 marvell_init(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
phy_write(mii_info, 0x14, 0x0cd2);
phy_write(mii_info, MII_BMCR,
phy_read(mii_info, MII_BMCR) | BMCR_RESET);
msleep(4000);
return 0;
}
static int marvell_config_aneg(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
/* The Marvell PHY has an errata which requires
* that certain registers get written in order
* to restart autonegotiation */
phy_write(mii_info, MII_BMCR, BMCR_RESET);
phy_write(mii_info, 0x1d, 0x1f);
phy_write(mii_info, 0x1e, 0x200c);
phy_write(mii_info, 0x1d, 0x5);
phy_write(mii_info, 0x1e, 0);
phy_write(mii_info, 0x1e, 0x100);
gbit_config_aneg(mii_info);
return 0;
}
static int marvell_read_status(struct ugeth_mii_info *mii_info)
{
u16 status;
int err;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Update the link, but return if there
* was an error */
err = genmii_update_link(mii_info);
if (err)
return err;
/* If the link is up, read the speed and duplex */
/* If we aren't autonegotiating, assume speeds
* are as set */
if (mii_info->autoneg && mii_info->link) {
int speed;
status = phy_read(mii_info, MII_M1011_PHY_SPEC_STATUS);
/* Get the duplexity */
if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX)
mii_info->duplex = DUPLEX_FULL;
else
mii_info->duplex = DUPLEX_HALF;
/* Get the speed */
speed = status & MII_M1011_PHY_SPEC_STATUS_SPD_MASK;
switch (speed) {
case MII_M1011_PHY_SPEC_STATUS_1000:
mii_info->speed = SPEED_1000;
break;
case MII_M1011_PHY_SPEC_STATUS_100:
mii_info->speed = SPEED_100;
break;
default:
mii_info->speed = SPEED_10;
break;
}
mii_info->pause = 0;
}
return 0;
}
static int marvell_ack_interrupt(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Clear the interrupts by reading the reg */
phy_read(mii_info, MII_M1011_IEVENT);
return 0;
}
static int marvell_config_intr(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
else
phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
return 0;
}
static int cis820x_init(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
phy_write(mii_info, MII_CIS8201_AUX_CONSTAT,
MII_CIS8201_AUXCONSTAT_INIT);
phy_write(mii_info, MII_CIS8201_EXT_CON1, MII_CIS8201_EXTCON1_INIT);
return 0;
}
static int cis820x_read_status(struct ugeth_mii_info *mii_info)
{
u16 status;
int err;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Update the link, but return if there
* was an error */
err = genmii_update_link(mii_info);
if (err)
return err;
/* If the link is up, read the speed and duplex */
/* If we aren't autonegotiating, assume speeds
* are as set */
if (mii_info->autoneg && mii_info->link) {
int speed;
status = phy_read(mii_info, MII_CIS8201_AUX_CONSTAT);
if (status & MII_CIS8201_AUXCONSTAT_DUPLEX)
mii_info->duplex = DUPLEX_FULL;
else
mii_info->duplex = DUPLEX_HALF;
speed = status & MII_CIS8201_AUXCONSTAT_SPEED;
switch (speed) {
case MII_CIS8201_AUXCONSTAT_GBIT:
mii_info->speed = SPEED_1000;
break;
case MII_CIS8201_AUXCONSTAT_100:
mii_info->speed = SPEED_100;
break;
default:
mii_info->speed = SPEED_10;
break;
}
}
return 0;
}
static int cis820x_ack_interrupt(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
phy_read(mii_info, MII_CIS8201_ISTAT);
return 0;
}
static int cis820x_config_intr(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
phy_write(mii_info, MII_CIS8201_IMASK, MII_CIS8201_IMASK_MASK);
else
phy_write(mii_info, MII_CIS8201_IMASK, 0);
return 0;
}
#define DM9161_DELAY 10
static int dm9161_read_status(struct ugeth_mii_info *mii_info)
{
u16 status;
int err;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Update the link, but return if there
* was an error */
err = genmii_update_link(mii_info);
if (err)
return err;
/* If the link is up, read the speed and duplex */
/* If we aren't autonegotiating, assume speeds
* are as set */
if (mii_info->autoneg && mii_info->link) {
status = phy_read(mii_info, MII_DM9161_SCSR);
if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_100H))
mii_info->speed = SPEED_100;
else
mii_info->speed = SPEED_10;
if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_10F))
mii_info->duplex = DUPLEX_FULL;
else
mii_info->duplex = DUPLEX_HALF;
}
return 0;
}
static int dm9161_config_aneg(struct ugeth_mii_info *mii_info)
{
struct dm9161_private *priv = mii_info->priv;
ugphy_vdbg("%s: IN", __FUNCTION__);
if (0 == priv->resetdone)
return -EAGAIN;
return 0;
}
static void dm9161_timer(unsigned long data)
{
struct ugeth_mii_info *mii_info = (struct ugeth_mii_info *)data;
struct dm9161_private *priv = mii_info->priv;
u16 status = phy_read(mii_info, MII_BMSR);
ugphy_vdbg("%s: IN", __FUNCTION__);
if (status & BMSR_ANEGCOMPLETE) {
priv->resetdone = 1;
} else
mod_timer(&priv->timer, jiffies + DM9161_DELAY * HZ);
}
static int dm9161_init(struct ugeth_mii_info *mii_info)
{
struct dm9161_private *priv;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Allocate the private data structure */
priv = kmalloc(sizeof(struct dm9161_private), GFP_KERNEL);
if (NULL == priv)
return -ENOMEM;
mii_info->priv = priv;
/* Reset is not done yet */
priv->resetdone = 0;
phy_write(mii_info, MII_BMCR,
phy_read(mii_info, MII_BMCR) | BMCR_RESET);
phy_write(mii_info, MII_BMCR,
phy_read(mii_info, MII_BMCR) & ~BMCR_ISOLATE);
config_genmii_advert(mii_info);
/* Start/Restart aneg */
genmii_config_aneg(mii_info);
/* Start a timer for DM9161_DELAY seconds to wait
* for the PHY to be ready */
init_timer(&priv->timer);
priv->timer.function = &dm9161_timer;
priv->timer.data = (unsigned long)mii_info;
mod_timer(&priv->timer, jiffies + DM9161_DELAY * HZ);
return 0;
}
static void dm9161_close(struct ugeth_mii_info *mii_info)
{
struct dm9161_private *priv = mii_info->priv;
ugphy_vdbg("%s: IN", __FUNCTION__);
del_timer_sync(&priv->timer);
kfree(priv);
}
static int dm9161_ack_interrupt(struct ugeth_mii_info *mii_info)
{
/* FIXME: This lines are for BUG fixing in the mpc8325.
Remove this from here when it's fixed */
if (bcsr_regs == NULL)
bcsr_regs = (u8 *) ioremap(BCSR_PHYS_ADDR, BCSR_SIZE);
bcsr_regs[14] |= 0x40;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Clear the interrupts by reading the reg */
phy_read(mii_info, MII_DM9161_INTR);
return 0;
}
static int dm9161_config_intr(struct ugeth_mii_info *mii_info)
{
/* FIXME: This lines are for BUG fixing in the mpc8325.
Remove this from here when it's fixed */
if (bcsr_regs == NULL) {
bcsr_regs = (u8 *) ioremap(BCSR_PHYS_ADDR, BCSR_SIZE);
bcsr_regs[14] &= ~0x40;
}
ugphy_vdbg("%s: IN", __FUNCTION__);
if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_INIT);
else
phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_STOP);
return 0;
}
/* Cicada 820x */
static struct phy_info phy_info_cis820x = {
.phy_id = 0x000fc440,
.name = "Cicada Cis8204",
.phy_id_mask = 0x000fffc0,
.features = MII_GBIT_FEATURES,
.init = &cis820x_init,
.config_aneg = &gbit_config_aneg,
.read_status = &cis820x_read_status,
.ack_interrupt = &cis820x_ack_interrupt,
.config_intr = &cis820x_config_intr,
};
static struct phy_info phy_info_dm9161 = {
.phy_id = 0x0181b880,
.phy_id_mask = 0x0ffffff0,
.name = "Davicom DM9161E",
.init = dm9161_init,
.config_aneg = dm9161_config_aneg,
.read_status = dm9161_read_status,
.close = dm9161_close,
};
static struct phy_info phy_info_dm9161a = {
.phy_id = 0x0181b8a0,
.phy_id_mask = 0x0ffffff0,
.name = "Davicom DM9161A",
.features = MII_BASIC_FEATURES,
.init = dm9161_init,
.config_aneg = dm9161_config_aneg,
.read_status = dm9161_read_status,
.ack_interrupt = dm9161_ack_interrupt,
.config_intr = dm9161_config_intr,
.close = dm9161_close,
};
static struct phy_info phy_info_marvell = {
.phy_id = 0x01410c00,
.phy_id_mask = 0xffffff00,
.name = "Marvell 88E11x1",
.features = MII_GBIT_FEATURES,
.init = &marvell_init,
.config_aneg = &marvell_config_aneg,
.read_status = &marvell_read_status,
.ack_interrupt = &marvell_ack_interrupt,
.config_intr = &marvell_config_intr,
};
static struct phy_info phy_info_genmii = {
.phy_id = 0x00000000,
.phy_id_mask = 0x00000000,
.name = "Generic MII",
.features = MII_BASIC_FEATURES,
.config_aneg = genmii_config_aneg,
.read_status = genmii_read_status,
};
static struct phy_info *phy_info[] = {
&phy_info_cis820x,
&phy_info_marvell,
&phy_info_dm9161,
&phy_info_dm9161a,
&phy_info_genmii,
NULL
};
u16 phy_read(struct ugeth_mii_info *mii_info, u16 regnum)
{
u16 retval;
unsigned long flags;
ugphy_vdbg("%s: IN", __FUNCTION__);
spin_lock_irqsave(&mii_info->mdio_lock, flags);
retval = mii_info->mdio_read(mii_info->dev, mii_info->mii_id, regnum);
spin_unlock_irqrestore(&mii_info->mdio_lock, flags);
return retval;
}
void phy_write(struct ugeth_mii_info *mii_info, u16 regnum, u16 val)
{
unsigned long flags;
ugphy_vdbg("%s: IN", __FUNCTION__);
spin_lock_irqsave(&mii_info->mdio_lock, flags);
mii_info->mdio_write(mii_info->dev, mii_info->mii_id, regnum, val);
spin_unlock_irqrestore(&mii_info->mdio_lock, flags);
}
/* Use the PHY ID registers to determine what type of PHY is attached
* to device dev. return a struct phy_info structure describing that PHY
*/
struct phy_info *get_phy_info(struct ugeth_mii_info *mii_info)
{
u16 phy_reg;
u32 phy_ID;
int i;
struct phy_info *theInfo = NULL;
struct net_device *dev = mii_info->dev;
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Grab the bits from PHYIR1, and put them in the upper half */
phy_reg = phy_read(mii_info, MII_PHYSID1);
phy_ID = (phy_reg & 0xffff) << 16;
/* Grab the bits from PHYIR2, and put them in the lower half */
phy_reg = phy_read(mii_info, MII_PHYSID2);
phy_ID |= (phy_reg & 0xffff);
/* loop through all the known PHY types, and find one that */
/* matches the ID we read from the PHY. */
for (i = 0; phy_info[i]; i++)
if (phy_info[i]->phy_id == (phy_ID & phy_info[i]->phy_id_mask)){
theInfo = phy_info[i];
break;
}
/* This shouldn't happen, as we have generic PHY support */
if (theInfo == NULL) {
ugphy_info("%s: PHY id %x is not supported!", dev->name,
phy_ID);
return NULL;
} else {
ugphy_info("%s: PHY is %s (%x)", dev->name, theInfo->name,
phy_ID);
}
return theInfo;
}

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drivers/net/ucc_geth_phy.h Normal file
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/*
* Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
*
* Author: Shlomi Gridish <gridish@freescale.com>
*
* Description:
* UCC GETH Driver -- PHY handling
*
* Changelog:
* Jun 28, 2006 Li Yang <LeoLi@freescale.com>
* - Rearrange code and style fixes
*
* 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
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __UCC_GETH_PHY_H__
#define __UCC_GETH_PHY_H__
#define MII_end ((u32)-2)
#define MII_read ((u32)-1)
#define MIIMIND_BUSY 0x00000001
#define MIIMIND_NOTVALID 0x00000004
#define UGETH_AN_TIMEOUT 2000
/* 1000BT control (Marvell & BCM54xx at least) */
#define MII_1000BASETCONTROL 0x09
#define MII_1000BASETCONTROL_FULLDUPLEXCAP 0x0200
#define MII_1000BASETCONTROL_HALFDUPLEXCAP 0x0100
/* Cicada Extended Control Register 1 */
#define MII_CIS8201_EXT_CON1 0x17
#define MII_CIS8201_EXTCON1_INIT 0x0000
/* Cicada Interrupt Mask Register */
#define MII_CIS8201_IMASK 0x19
#define MII_CIS8201_IMASK_IEN 0x8000
#define MII_CIS8201_IMASK_SPEED 0x4000
#define MII_CIS8201_IMASK_LINK 0x2000
#define MII_CIS8201_IMASK_DUPLEX 0x1000
#define MII_CIS8201_IMASK_MASK 0xf000
/* Cicada Interrupt Status Register */
#define MII_CIS8201_ISTAT 0x1a
#define MII_CIS8201_ISTAT_STATUS 0x8000
#define MII_CIS8201_ISTAT_SPEED 0x4000
#define MII_CIS8201_ISTAT_LINK 0x2000
#define MII_CIS8201_ISTAT_DUPLEX 0x1000
/* Cicada Auxiliary Control/Status Register */
#define MII_CIS8201_AUX_CONSTAT 0x1c
#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
#define MII_CIS8201_AUXCONSTAT_100 0x0008
/* 88E1011 PHY Status Register */
#define MII_M1011_PHY_SPEC_STATUS 0x11
#define MII_M1011_PHY_SPEC_STATUS_1000 0x8000
#define MII_M1011_PHY_SPEC_STATUS_100 0x4000
#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000
#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000
#define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800
#define MII_M1011_PHY_SPEC_STATUS_LINK 0x0400
#define MII_M1011_IEVENT 0x13
#define MII_M1011_IEVENT_CLEAR 0x0000
#define MII_M1011_IMASK 0x12
#define MII_M1011_IMASK_INIT 0x6400
#define MII_M1011_IMASK_CLEAR 0x0000
#define MII_DM9161_SCR 0x10
#define MII_DM9161_SCR_INIT 0x0610
/* DM9161 Specified Configuration and Status Register */
#define MII_DM9161_SCSR 0x11
#define MII_DM9161_SCSR_100F 0x8000
#define MII_DM9161_SCSR_100H 0x4000
#define MII_DM9161_SCSR_10F 0x2000
#define MII_DM9161_SCSR_10H 0x1000
/* DM9161 Interrupt Register */
#define MII_DM9161_INTR 0x15
#define MII_DM9161_INTR_PEND 0x8000
#define MII_DM9161_INTR_DPLX_MASK 0x0800
#define MII_DM9161_INTR_SPD_MASK 0x0400
#define MII_DM9161_INTR_LINK_MASK 0x0200
#define MII_DM9161_INTR_MASK 0x0100
#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
#define MII_DM9161_INTR_SPD_CHANGE 0x0008
#define MII_DM9161_INTR_LINK_CHANGE 0x0004
#define MII_DM9161_INTR_INIT 0x0000
#define MII_DM9161_INTR_STOP \
(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
| MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
/* DM9161 10BT Configuration/Status */
#define MII_DM9161_10BTCSR 0x12
#define MII_DM9161_10BTCSR_INIT 0x7800
#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)
#define MII_READ_COMMAND 0x00000001
#define MII_INTERRUPT_DISABLED 0x0
#define MII_INTERRUPT_ENABLED 0x1
/* Taken from mii_if_info and sungem_phy.h */
struct ugeth_mii_info {
/* Information about the PHY type */
/* And management functions */
struct phy_info *phyinfo;
ucc_mii_mng_t *mii_regs;
/* forced speed & duplex (no autoneg)
* partner speed & duplex & pause (autoneg)
*/
int speed;
int duplex;
int pause;
/* The most recently read link state */
int link;
/* Enabled Interrupts */
u32 interrupts;
u32 advertising;
int autoneg;
int mii_id;
/* private data pointer */
/* For use by PHYs to maintain extra state */
void *priv;
/* Provided by host chip */
struct net_device *dev;
/* A lock to ensure that only one thing can read/write
* the MDIO bus at a time */
spinlock_t mdio_lock;
/* Provided by ethernet driver */
int (*mdio_read) (struct net_device * dev, int mii_id, int reg);
void (*mdio_write) (struct net_device * dev, int mii_id, int reg,
int val);
};
/* struct phy_info: a structure which defines attributes for a PHY
*
* id will contain a number which represents the PHY. During
* startup, the driver will poll the PHY to find out what its
* UID--as defined by registers 2 and 3--is. The 32-bit result
* gotten from the PHY will be ANDed with phy_id_mask to
* discard any bits which may change based on revision numbers
* unimportant to functionality
*
* There are 6 commands which take a ugeth_mii_info structure.
* Each PHY must declare config_aneg, and read_status.
*/
struct phy_info {
u32 phy_id;
char *name;
unsigned int phy_id_mask;
u32 features;
/* Called to initialize the PHY */
int (*init) (struct ugeth_mii_info * mii_info);
/* Called to suspend the PHY for power */
int (*suspend) (struct ugeth_mii_info * mii_info);
/* Reconfigures autonegotiation (or disables it) */
int (*config_aneg) (struct ugeth_mii_info * mii_info);
/* Determines the negotiated speed and duplex */
int (*read_status) (struct ugeth_mii_info * mii_info);
/* Clears any pending interrupts */
int (*ack_interrupt) (struct ugeth_mii_info * mii_info);
/* Enables or disables interrupts */
int (*config_intr) (struct ugeth_mii_info * mii_info);
/* Clears up any memory if needed */
void (*close) (struct ugeth_mii_info * mii_info);
};
struct phy_info *get_phy_info(struct ugeth_mii_info *mii_info);
void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value);
int read_phy_reg(struct net_device *dev, int mii_id, int regnum);
void mii_clear_phy_interrupt(struct ugeth_mii_info *mii_info);
void mii_configure_phy_interrupt(struct ugeth_mii_info *mii_info,
u32 interrupts);
struct dm9161_private {
struct timer_list timer;
int resetdone;
};
#endif /* __UCC_GETH_PHY_H__ */