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ucc_geth: migrate ucc_geth to phylib

Browse source 
migrate ucc_geth to use the common phylib code.

There are several side effects from doing this:

o deprecate 'interface' property specification present
  in some old device tree source files in
  favour of a split 'max-speed' and 'interface-type'
  description to appropriately match definitions
  in include/linux/phy.h.  Note that 'interface' property
  is still honoured if max-speed or interface-type
  are not present (backward compatible).
o compile-time CONFIG_UGETH_HAS_GIGA is eliminated
  in favour of probe time speed derivation logic.
o adjust_link streamlined to only operate on maccfg2
  and upsmr.r10m, instead of reapplying static initial
  values related to the interface-type.
o Addition of UEC MDIO of_platform driver requires
  platform code add 'mdio' type to id list
  prior to calling of_platform_bus_probe (separate patch).
o ucc_struct_init introduced to reduce ucc_geth_startup
  complexity.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Kim Phillips 2007-04-13 01:26:03 -05:00 committed by Jeff Garzik
parent a999589cca
commit 728de4c927
9 changed files with 659 additions and 1689 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/net/Kconfig
View file

@ -2296,10 +2296,6 @@ config UGETH_TX_ON_DEMOND
bool "Transmit on Demond support"
depends on UCC_GETH
config UGETH_HAS_GIGA
bool
depends on UCC_GETH && PPC_MPC836x
config MV643XX_ETH
tristate "MV-643XX Ethernet support"
depends on MOMENCO_OCELOT_C || MOMENCO_JAGUAR_ATX || MV64360 || MOMENCO_OCELOT_3 || (PPC_MULTIPLATFORM && PPC32)

2
drivers/net/Makefile
View file

@ -18,7 +18,7 @@ gianfar_driver-objs := gianfar.o \
gianfar_sysfs.o
obj-$(CONFIG_UCC_GETH) += ucc_geth_driver.o
ucc_geth_driver-objs := ucc_geth.o ucc_geth_phy.o
ucc_geth_driver-objs := ucc_geth.o ucc_geth_mii.o
#
# link order important here

810
drivers/net/ucc_geth.c
View file

File diff suppressed because it is too large Load diff

108
drivers/net/ucc_geth.h
View file

@ -28,6 +28,8 @@
#include <asm/ucc.h>
#include <asm/ucc_fast.h>
#include "ucc_geth_mii.h"
#define NUM_TX_QUEUES 8
#define NUM_RX_QUEUES 8
#define NUM_BDS_IN_PREFETCHED_BDS 4
@ -36,15 +38,6 @@
#define ENET_INIT_PARAM_MAX_ENTRIES_RX 9
#define ENET_INIT_PARAM_MAX_ENTRIES_TX 8
struct ucc_mii_mng {
u32 miimcfg; /* MII management configuration reg */
u32 miimcom; /* MII management command reg */
u32 miimadd; /* MII management address reg */
u32 miimcon; /* MII management control reg */
u32 miimstat; /* MII management status reg */
u32 miimind; /* MII management indication reg */
} __attribute__ ((packed));
struct ucc_geth {
struct ucc_fast uccf;
@ -53,7 +46,7 @@ struct ucc_geth {
u32 ipgifg; /* interframe gap reg. */
u32 hafdup; /* half-duplex reg. */
u8 res1[0x10];
struct ucc_mii_mng miimng; /* MII management structure */
u8 miimng[0x18]; /* MII management structure moved to _mii.h */
u32 ifctl; /* interface control reg */
u32 ifstat; /* interface statux reg */
u32 macstnaddr1; /* mac station address part 1 reg */
@ -381,66 +374,6 @@ struct ucc_geth {
#define UCCS_MPD 0x01 /* Magic Packet
Detected */
/* UCC GETH MIIMCFG (MII Management Configuration Register) */
#define MIIMCFG_RESET_MANAGEMENT 0x80000000 /* Reset
management */
#define MIIMCFG_NO_PREAMBLE 0x00000010 /* Preamble
suppress */
#define MIIMCFG_CLOCK_DIVIDE_SHIFT (31 - 31) /* clock divide
<< shift */
#define MIIMCFG_CLOCK_DIVIDE_MAX 0xf /* clock divide max val
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_2 0x00000000 /* divide by 2 */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_4 0x00000001 /* divide by 4 */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_6 0x00000002 /* divide by 6 */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_8 0x00000003 /* divide by 8 */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_10 0x00000004 /* divide by 10
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_14 0x00000005 /* divide by 14
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_16 0x00000008 /* divide by 16
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_20 0x00000006 /* divide by 20
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_28 0x00000007 /* divide by 28
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_32 0x00000009 /* divide by 32
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_48 0x0000000a /* divide by 48
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_64 0x0000000b /* divide by 64
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_80 0x0000000c /* divide by 80
*/
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112 0x0000000d /* divide by
112 */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_160 0x0000000e /* divide by
160 */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_224 0x0000000f /* divide by
224 */
/* UCC GETH MIIMCOM (MII Management Command Register) */
#define MIIMCOM_SCAN_CYCLE 0x00000002 /* Scan cycle */
#define MIIMCOM_READ_CYCLE 0x00000001 /* Read cycle */
/* UCC GETH MIIMADD (MII Management Address Register) */
#define MIIMADD_PHY_ADDRESS_SHIFT (31 - 23) /* PHY Address
<< shift */
#define MIIMADD_PHY_REGISTER_SHIFT (31 - 31) /* PHY Register
<< shift */
/* UCC GETH MIIMCON (MII Management Control Register) */
#define MIIMCON_PHY_CONTROL_SHIFT (31 - 31) /* PHY Control
<< shift */
#define MIIMCON_PHY_STATUS_SHIFT (31 - 31) /* PHY Status
<< shift */
/* UCC GETH MIIMIND (MII Management Indicator Register) */
#define MIIMIND_NOT_VALID 0x00000004 /* Not valid */
#define MIIMIND_SCAN 0x00000002 /* Scan in
progress */
#define MIIMIND_BUSY 0x00000001
/* UCC GETH IFSTAT (Interface Status Register) */
#define IFSTAT_EXCESS_DEFER 0x00000200 /* Excessive
transmission
@ -1009,15 +942,6 @@ struct ucc_geth_hardware_statistics {
register */
#define UCC_GETH_MACCFG1_INIT 0
#define UCC_GETH_MACCFG2_INIT (MACCFG2_RESERVED_1)
#define UCC_GETH_MIIMCFG_MNGMNT_CLC_DIV_INIT \
(MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112)
/* Ethernet speed */
enum enet_speed {
ENET_SPEED_10BT, /* 10 Base T */
ENET_SPEED_100BT, /* 100 Base T */
ENET_SPEED_1000BT /* 1000 Base T */
};
/* Ethernet Address Type. */
enum enet_addr_type {
@ -1026,22 +950,6 @@ enum enet_addr_type {
ENET_ADDR_TYPE_BROADCAST
};
/* TBI / MII Set Register */
enum enet_tbi_mii_reg {
ENET_TBI_MII_CR = 0x00, /* Control (CR ) */
ENET_TBI_MII_SR = 0x01, /* Status (SR ) */
ENET_TBI_MII_ANA = 0x04, /* AN advertisement (ANA ) */
ENET_TBI_MII_ANLPBPA = 0x05, /* AN link partner base page ability
(ANLPBPA) */
ENET_TBI_MII_ANEX = 0x06, /* AN expansion (ANEX ) */
ENET_TBI_MII_ANNPT = 0x07, /* AN next page transmit (ANNPT ) */
ENET_TBI_MII_ANLPANP = 0x08, /* AN link partner ability next page
(ANLPANP) */
ENET_TBI_MII_EXST = 0x0F, /* Extended status (EXST ) */
ENET_TBI_MII_JD = 0x10, /* Jitter diagnostics (JD ) */
ENET_TBI_MII_TBICON = 0x11 /* TBI control (TBICON ) */
};
/* UCC GETH 82xx Ethernet Address Recognition Location */
enum ucc_geth_enet_address_recognition_location {
UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_STATION_ADDRESS,/* station
@ -1239,8 +1147,7 @@ struct ucc_geth_info {
u16 pausePeriod;
u16 extensionField;
u8 phy_address;
u32 board_flags;
u32 phy_interrupt;
u32 mdio_bus;
u8 weightfactor[NUM_TX_QUEUES];
u8 interruptcoalescingmaxvalue[NUM_RX_QUEUES];
u8 l2qt[UCC_GETH_VLAN_PRIORITY_MAX];
@ -1249,7 +1156,6 @@ struct ucc_geth_info {
u8 iphoffset[TX_IP_OFFSET_ENTRY_MAX];
u16 bdRingLenTx[NUM_TX_QUEUES];
u16 bdRingLenRx[NUM_RX_QUEUES];
enum enet_interface enet_interface;
enum ucc_geth_num_of_station_addresses numStationAddresses;
enum qe_fltr_largest_external_tbl_lookup_key_size
largestexternallookupkeysize;
@ -1326,9 +1232,11 @@ struct ucc_geth_private {
/* index of the first skb which hasn't been transmitted yet. */
u16 skb_dirtytx[NUM_TX_QUEUES];
struct work_struct tq;
struct timer_list phy_info_timer;
struct ugeth_mii_info *mii_info;
struct phy_device *phydev;
phy_interface_t phy_interface;
int max_speed;
uint32_t msg_enable;
int oldspeed;
int oldduplex;
int oldlink;

279
drivers/net/ucc_geth_mii.c Normal file
View file

@ -0,0 +1,279 @@
/*
* drivers/net/ucc_geth_mii.c
*
* Gianfar Ethernet Driver -- MIIM bus implementation
* Provides Bus interface for MIIM regs
*
* Author: Li Yang
*
* Copyright (c) 2002-2004 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
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/unistd.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/platform_device.h>
#include <asm/ocp.h>
#include <linux/crc32.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/fsl_devices.h>
#include <asm/of_platform.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/ucc.h>
#include "ucc_geth_mii.h"
#include "ucc_geth.h"
#define DEBUG
#ifdef DEBUG
#define vdbg(format, arg...) printk(KERN_DEBUG , format "\n" , ## arg)
#else
#define vdbg(format, arg...) do {} while(0)
#endif
#define DRV_DESC "QE UCC Ethernet Controller MII Bus"
#define DRV_NAME "fsl-uec_mdio"
/* 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 master UEC MIIM regs */
int uec_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value)
{
struct ucc_mii_mng __iomem *regs = (void __iomem *)bus->priv;
/* Setting up the MII Mangement Address Register */
out_be32(&regs->miimadd,
(mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | regnum);
/* Setting up the MII Mangement Control Register with the value */
out_be32(&regs->miimcon, value);
/* Wait till MII management write is complete */
while ((in_be32(&regs->miimind)) & MIIMIND_BUSY)
cpu_relax();
return 0;
}
/* 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 uec_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
{
struct ucc_mii_mng __iomem *regs = (void __iomem *)bus->priv;
u16 value;
/* Setting up the MII Mangement Address Register */
out_be32(&regs->miimadd,
(mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | regnum);
/* Clear miimcom, perform an MII management read cycle */
out_be32(&regs->miimcom, 0);
out_be32(&regs->miimcom, MIIMCOM_READ_CYCLE);
/* Wait till MII management write is complete */
while ((in_be32(&regs->miimind)) & (MIIMIND_BUSY | MIIMIND_NOT_VALID))
cpu_relax();
/* Read MII management status */
value = in_be32(&regs->miimstat);
return value;
}
/* Reset the MIIM registers, and wait for the bus to free */
int uec_mdio_reset(struct mii_bus *bus)
{
struct ucc_mii_mng __iomem *regs = (void __iomem *)bus->priv;
unsigned int timeout = PHY_INIT_TIMEOUT;
spin_lock_bh(&bus->mdio_lock);
/* Reset the management interface */
out_be32(&regs->miimcfg, MIIMCFG_RESET_MANAGEMENT);
/* Setup the MII Mgmt clock speed */
out_be32(&regs->miimcfg, MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112);
/* Wait until the bus is free */
while ((in_be32(&regs->miimind) & MIIMIND_BUSY) && timeout--)
cpu_relax();
spin_unlock_bh(&bus->mdio_lock);
if (timeout <= 0) {
printk(KERN_ERR "%s: The MII Bus is stuck!\n", bus->name);
return -EBUSY;
}
return 0;
}
static int uec_mdio_probe(struct of_device *ofdev, const struct of_device_id *match)
{
struct device *device = &ofdev->dev;
struct device_node *np = ofdev->node, *tempnp = NULL;
struct device_node *child = NULL;
struct ucc_mii_mng __iomem *regs;
struct mii_bus *new_bus;
struct resource res;
int k, err = 0;
new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
if (NULL == new_bus)
return -ENOMEM;
new_bus->name = "UCC Ethernet Controller MII Bus";
new_bus->read = &uec_mdio_read;
new_bus->write = &uec_mdio_write;
new_bus->reset = &uec_mdio_reset;
memset(&res, 0, sizeof(res));
err = of_address_to_resource(np, 0, &res);
if (err)
goto reg_map_fail;
new_bus->id = res.start;
new_bus->irq = kmalloc(32 * sizeof(int), GFP_KERNEL);
if (NULL == new_bus->irq) {
err = -ENOMEM;
goto reg_map_fail;
}
for (k = 0; k < 32; k++)
new_bus->irq[k] = PHY_POLL;
while ((child = of_get_next_child(np, child)) != NULL) {
int irq = irq_of_parse_and_map(child, 0);
if (irq != NO_IRQ) {
const u32 *id = get_property(child, "reg", NULL);
new_bus->irq[*id] = irq;
}
}
/* Set the base address */
regs = ioremap(res.start, sizeof(struct ucc_mii_mng));
if (NULL == regs) {
err = -ENOMEM;
goto ioremap_fail;
}
new_bus->priv = (void __force *)regs;
new_bus->dev = device;
dev_set_drvdata(device, new_bus);
/* Read MII management master from device tree */
while ((tempnp = of_find_compatible_node(tempnp, "network", "ucc_geth"))
!= NULL) {
struct resource tempres;
err = of_address_to_resource(tempnp, 0, &tempres);
if (err)
goto bus_register_fail;
/* if our mdio regs fall within this UCC regs range */
if ((res.start >= tempres.start) &&
(res.end <= tempres.end)) {
/* set this UCC to be the MII master */
const u32 *id = get_property(tempnp, "device-id", NULL);
if (id == NULL)
goto bus_register_fail;
ucc_set_qe_mux_mii_mng(*id - 1);
/* assign the TBI an address which won't
* conflict with the PHYs */
out_be32(&regs->utbipar, UTBIPAR_INIT_TBIPA);
break;
}
}
err = mdiobus_register(new_bus);
if (0 != err) {
printk(KERN_ERR "%s: Cannot register as MDIO bus\n",
new_bus->name);
goto bus_register_fail;
}
return 0;
bus_register_fail:
iounmap(regs);
ioremap_fail:
kfree(new_bus->irq);
reg_map_fail:
kfree(new_bus);
return err;
}
int uec_mdio_remove(struct of_device *ofdev)
{
struct device *device = &ofdev->dev;
struct mii_bus *bus = dev_get_drvdata(device);
mdiobus_unregister(bus);
dev_set_drvdata(device, NULL);
iounmap((void __iomem *)bus->priv);
bus->priv = NULL;
kfree(bus);
return 0;
}
static struct of_device_id uec_mdio_match[] = {
{
.type = "mdio",
.compatible = "ucc_geth_phy",
},
{},
};
MODULE_DEVICE_TABLE(of, uec_mdio_match);
static struct of_platform_driver uec_mdio_driver = {
.name = DRV_NAME,
.probe = uec_mdio_probe,
.remove = uec_mdio_remove,
.match_table = uec_mdio_match,
};
int __init uec_mdio_init(void)
{
return of_register_platform_driver(&uec_mdio_driver);
}
void __exit uec_mdio_exit(void)
{
of_unregister_platform_driver(&uec_mdio_driver);
}

100
drivers/net/ucc_geth_mii.h Normal file
View file

@ -0,0 +1,100 @@
/*
* drivers/net/ucc_geth_mii.h
*
* Gianfar Ethernet Driver -- MII Management Bus Implementation
* Driver for the MDIO bus controller in the Gianfar register space
*
* Author: Andy Fleming
* Maintainer: Kumar Gala
*
* Copyright (c) 2002-2004 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
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __UEC_MII_H
#define __UEC_MII_H
/* UCC GETH MIIMCFG (MII Management Configuration Register) */
#define MIIMCFG_RESET_MANAGEMENT 0x80000000 /* Reset
management */
#define MIIMCFG_NO_PREAMBLE 0x00000010 /* Preamble
suppress */
#define MIIMCFG_CLOCK_DIVIDE_SHIFT (31 - 31) /* clock divide
<< shift */
#define MIIMCFG_CLOCK_DIVIDE_MAX 0xf /* max clock divide */
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_2 0x00000000
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_4 0x00000001
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_6 0x00000002
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_8 0x00000003
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_10 0x00000004
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_14 0x00000005
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_16 0x00000008
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_20 0x00000006
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_28 0x00000007
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_32 0x00000009
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_48 0x0000000a
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_64 0x0000000b
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_80 0x0000000c
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112 0x0000000d
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_160 0x0000000e
#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_224 0x0000000f
/* UCC GETH MIIMCOM (MII Management Command Register) */
#define MIIMCOM_SCAN_CYCLE 0x00000002 /* Scan cycle */
#define MIIMCOM_READ_CYCLE 0x00000001 /* Read cycle */
/* UCC GETH MIIMADD (MII Management Address Register) */
#define MIIMADD_PHY_ADDRESS_SHIFT (31 - 23) /* PHY Address
<< shift */
#define MIIMADD_PHY_REGISTER_SHIFT (31 - 31) /* PHY Register
<< shift */
/* UCC GETH MIIMCON (MII Management Control Register) */
#define MIIMCON_PHY_CONTROL_SHIFT (31 - 31) /* PHY Control
<< shift */
#define MIIMCON_PHY_STATUS_SHIFT (31 - 31) /* PHY Status
<< shift */
/* UCC GETH MIIMIND (MII Management Indicator Register) */
#define MIIMIND_NOT_VALID 0x00000004 /* Not valid */
#define MIIMIND_SCAN 0x00000002 /* Scan in
progress */
#define MIIMIND_BUSY 0x00000001
/* Initial TBI Physical Address */
#define UTBIPAR_INIT_TBIPA 0x1f
struct ucc_mii_mng {
u32 miimcfg; /* MII management configuration reg */
u32 miimcom; /* MII management command reg */
u32 miimadd; /* MII management address reg */
u32 miimcon; /* MII management control reg */
u32 miimstat; /* MII management status reg */
u32 miimind; /* MII management indication reg */
u8 notcare[28]; /* Space holder */
u32 utbipar; /* TBI phy address reg */
} __attribute__ ((packed));
/* TBI / MII Set Register */
enum enet_tbi_mii_reg {
ENET_TBI_MII_CR = 0x00, /* Control */
ENET_TBI_MII_SR = 0x01, /* Status */
ENET_TBI_MII_ANA = 0x04, /* AN advertisement */
ENET_TBI_MII_ANLPBPA = 0x05, /* AN link partner base page ability */
ENET_TBI_MII_ANEX = 0x06, /* AN expansion */
ENET_TBI_MII_ANNPT = 0x07, /* AN next page transmit */
ENET_TBI_MII_ANLPANP = 0x08, /* AN link partner ability next page */
ENET_TBI_MII_EXST = 0x0F, /* Extended status */
ENET_TBI_MII_JD = 0x10, /* Jitter diagnostics */
ENET_TBI_MII_TBICON = 0x11 /* TBI control */
};
int uec_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
int uec_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
int __init uec_mdio_init(void);
void __exit uec_mdio_exit(void);
#endif /* __UEC_MII_H */

785
drivers/net/ucc_geth_phy.c
View file

@ -1,785 +0,0 @@
/*
* 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/kernel.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"
#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);
static u16 ucc_geth_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;
}
static void ucc_geth_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);
}
/* 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)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct ucc_mii_mng *mii_regs;
enum enet_tbi_mii_reg mii_reg = (enum enet_tbi_mii_reg) 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)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct ucc_mii_mng *mii_regs;
enum enet_tbi_mii_reg mii_reg = (enum enet_tbi_mii_reg) 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 = ucc_geth_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;
ucc_geth_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 = ucc_geth_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;
}
ucc_geth_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 = ucc_geth_phy_read(mii_info, MII_BMCR);
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
ucc_geth_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 = ucc_geth_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;
ucc_geth_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 */
ucc_geth_phy_read(mii_info, MII_BMSR);
/* Read link and autonegotiation status */
status = ucc_geth_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 = ucc_geth_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__);
ucc_geth_phy_write(mii_info, 0x14, 0x0cd2);
ucc_geth_phy_write(mii_info, 0x1b,
(ucc_geth_phy_read(mii_info, 0x1b) & ~0x000f) | 0x000b);
ucc_geth_phy_write(mii_info, MII_BMCR,
ucc_geth_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 */
ucc_geth_phy_write(mii_info, MII_BMCR, BMCR_RESET);
ucc_geth_phy_write(mii_info, 0x1d, 0x1f);
ucc_geth_phy_write(mii_info, 0x1e, 0x200c);
ucc_geth_phy_write(mii_info, 0x1d, 0x5);
ucc_geth_phy_write(mii_info, 0x1e, 0);
ucc_geth_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 = ucc_geth_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 */
ucc_geth_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)
ucc_geth_phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
else
ucc_geth_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__);
ucc_geth_phy_write(mii_info, MII_CIS8201_AUX_CONSTAT,
MII_CIS8201_AUXCONSTAT_INIT);
ucc_geth_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 = ucc_geth_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__);
ucc_geth_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)
ucc_geth_phy_write(mii_info, MII_CIS8201_IMASK, MII_CIS8201_IMASK_MASK);
else
ucc_geth_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 = ucc_geth_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 = ucc_geth_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;
ucc_geth_phy_write(mii_info, MII_BMCR,
ucc_geth_phy_read(mii_info, MII_BMCR) | BMCR_RESET);
ucc_geth_phy_write(mii_info, MII_BMCR,
ucc_geth_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)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
/* Clear the interrupts by reading the reg */
ucc_geth_phy_read(mii_info, MII_DM9161_INTR);
return 0;
}
static int dm9161_config_intr(struct ugeth_mii_info *mii_info)
{
ugphy_vdbg("%s: IN", __FUNCTION__);
if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
ucc_geth_phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_INIT);
else
ucc_geth_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
};
/* 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 = ucc_geth_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 = ucc_geth_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;
}

217
drivers/net/ucc_geth_phy.h
View file

@ -1,217 +0,0 @@
/*
* 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;
struct ucc_mii_mng *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__ */

39
include/linux/fsl_devices.h
View file

@ -120,44 +120,5 @@ struct fsl_spi_platform_data {
u32 sysclk;
};
/* Ethernet interface (phy management and speed)
*/
enum enet_interface {
ENET_10_MII, /* 10 Base T, MII interface */
ENET_10_RMII, /* 10 Base T, RMII interface */
ENET_10_RGMII, /* 10 Base T, RGMII interface */
ENET_100_MII, /* 100 Base T, MII interface */
ENET_100_RMII, /* 100 Base T, RMII interface */
ENET_100_RGMII, /* 100 Base T, RGMII interface */
ENET_1000_GMII, /* 1000 Base T, GMII interface */
ENET_1000_RGMII, /* 1000 Base T, RGMII interface */
ENET_1000_TBI, /* 1000 Base T, TBI interface */
ENET_1000_RTBI /* 1000 Base T, RTBI interface */
};
struct ucc_geth_platform_data {
/* device specific information */
u32 device_flags;
u32 phy_reg_addr;
/* board specific information */
u32 board_flags;
u8 rx_clock;
u8 tx_clock;
u32 phy_id;
enum enet_interface phy_interface;
u32 phy_interrupt;
u8 mac_addr[6];
};
/* Flags related to UCC Gigabit Ethernet device features */
#define FSL_UGETH_DEV_HAS_GIGABIT 0x00000001
#define FSL_UGETH_DEV_HAS_COALESCE 0x00000002
#define FSL_UGETH_DEV_HAS_RMON 0x00000004
/* Flags in ucc_geth_platform_data */
#define FSL_UGETH_BRD_HAS_PHY_INTR 0x00000001
/* if not set use a timer */
#endif /* _FSL_DEVICE_H_ */
#endif /* __KERNEL__ */