* (C) Copyright 2001
* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
*/
#include <common.h>
+#include <dm.h>
#include <miiphy.h>
+#include <phy.h>
#include <asm/types.h>
#include <linux/list.h>
#undef debug
#ifdef MII_DEBUG
-#define debug(fmt,args...) printf (fmt ,##args)
+#define debug(fmt, args...) printf(fmt, ##args)
#else
-#define debug(fmt,args...)
+#define debug(fmt, args...)
#endif /* MII_DEBUG */
-struct mii_dev {
- struct list_head link;
- char *name;
- int (*read) (char *devname, unsigned char addr,
- unsigned char reg, unsigned short *value);
- int (*write) (char *devname, unsigned char addr,
- unsigned char reg, unsigned short value);
-};
-
static struct list_head mii_devs;
static struct mii_dev *current_mii;
+/*
+ * Lookup the mii_dev struct by the registered device name.
+ */
+struct mii_dev *miiphy_get_dev_by_name(const char *devname)
+{
+ struct list_head *entry;
+ struct mii_dev *dev;
+
+ if (!devname) {
+ printf("NULL device name!\n");
+ return NULL;
+ }
+
+ list_for_each(entry, &mii_devs) {
+ dev = list_entry(entry, struct mii_dev, link);
+ if (strcmp(dev->name, devname) == 0)
+ return dev;
+ }
+
+ return NULL;
+}
+
/*****************************************************************************
*
* Initialize global data. Need to be called before any other miiphy routine.
*/
-void miiphy_init ()
+void miiphy_init(void)
{
- INIT_LIST_HEAD (&mii_devs);
+ INIT_LIST_HEAD(&mii_devs);
current_mii = NULL;
}
+static int legacy_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg)
+{
+ unsigned short val;
+ int ret;
+ struct legacy_mii_dev *ldev = bus->priv;
+
+ ret = ldev->read(bus->name, addr, reg, &val);
+
+ return ret ? -1 : (int)val;
+}
+
+static int legacy_miiphy_write(struct mii_dev *bus, int addr, int devad,
+ int reg, u16 val)
+{
+ struct legacy_mii_dev *ldev = bus->priv;
+
+ return ldev->write(bus->name, addr, reg, val);
+}
+
/*****************************************************************************
*
* Register read and write MII access routines for the device <name>.
+ * This API is now deprecated. Please use mdio_alloc and mdio_register, instead.
*/
-void miiphy_register (char *name,
- int (*read) (char *devname, unsigned char addr,
+void miiphy_register(const char *name,
+ int (*read)(const char *devname, unsigned char addr,
unsigned char reg, unsigned short *value),
- int (*write) (char *devname, unsigned char addr,
+ int (*write)(const char *devname, unsigned char addr,
unsigned char reg, unsigned short value))
{
- struct list_head *entry;
struct mii_dev *new_dev;
- struct mii_dev *miidev;
- unsigned int name_len;
+ struct legacy_mii_dev *ldev;
+
+ BUG_ON(strlen(name) >= MDIO_NAME_LEN);
/* check if we have unique name */
- list_for_each (entry, &mii_devs) {
- miidev = list_entry (entry, struct mii_dev, link);
- if (strcmp (miidev->name, name) == 0) {
- printf ("miiphy_register: non unique device name "
- "'%s'\n", name);
- return;
- }
+ new_dev = miiphy_get_dev_by_name(name);
+ if (new_dev) {
+ printf("miiphy_register: non unique device name '%s'\n", name);
+ return;
}
/* allocate memory */
- name_len = strlen (name);
- new_dev =
- (struct mii_dev *)malloc (sizeof (struct mii_dev) + name_len + 1);
+ new_dev = mdio_alloc();
+ ldev = malloc(sizeof(*ldev));
- if (new_dev == NULL) {
- printf ("miiphy_register: cannot allocate memory for '%s'\n",
+ if (new_dev == NULL || ldev == NULL) {
+ printf("miiphy_register: cannot allocate memory for '%s'\n",
name);
return;
}
- memset (new_dev, 0, sizeof (struct mii_dev) + name_len);
/* initalize mii_dev struct fields */
- INIT_LIST_HEAD (&new_dev->link);
- new_dev->read = read;
- new_dev->write = write;
- new_dev->name = (char *)(new_dev + 1);
- strncpy (new_dev->name, name, name_len);
- new_dev->name[name_len] = '\0';
+ new_dev->read = legacy_miiphy_read;
+ new_dev->write = legacy_miiphy_write;
+ strncpy(new_dev->name, name, MDIO_NAME_LEN);
+ new_dev->name[MDIO_NAME_LEN - 1] = 0;
+ ldev->read = read;
+ ldev->write = write;
+ new_dev->priv = ldev;
- debug ("miiphy_register: added '%s', read=0x%08lx, write=0x%08lx\n",
- new_dev->name, new_dev->read, new_dev->write);
+ debug("miiphy_register: added '%s', read=0x%08lx, write=0x%08lx\n",
+ new_dev->name, ldev->read, ldev->write);
/* add it to the list */
- list_add_tail (&new_dev->link, &mii_devs);
+ list_add_tail(&new_dev->link, &mii_devs);
if (!current_mii)
current_mii = new_dev;
}
-int miiphy_set_current_dev (char *devname)
+struct mii_dev *mdio_alloc(void)
+{
+ struct mii_dev *bus;
+
+ bus = malloc(sizeof(*bus));
+ if (!bus)
+ return bus;
+
+ memset(bus, 0, sizeof(*bus));
+
+ /* initalize mii_dev struct fields */
+ INIT_LIST_HEAD(&bus->link);
+
+ return bus;
+}
+
+int mdio_register(struct mii_dev *bus)
+{
+ if (!bus || !bus->name || !bus->read || !bus->write)
+ return -1;
+
+ /* check if we have unique name */
+ if (miiphy_get_dev_by_name(bus->name)) {
+ printf("mdio_register: non unique device name '%s'\n",
+ bus->name);
+ return -1;
+ }
+
+ /* add it to the list */
+ list_add_tail(&bus->link, &mii_devs);
+
+ if (!current_mii)
+ current_mii = bus;
+
+ return 0;
+}
+
+void mdio_list_devices(void)
{
struct list_head *entry;
- struct mii_dev *dev;
- list_for_each (entry, &mii_devs) {
- dev = list_entry (entry, struct mii_dev, link);
+ list_for_each(entry, &mii_devs) {
+ int i;
+ struct mii_dev *bus = list_entry(entry, struct mii_dev, link);
+
+ printf("%s:\n", bus->name);
+
+ for (i = 0; i < PHY_MAX_ADDR; i++) {
+ struct phy_device *phydev = bus->phymap[i];
+
+ if (phydev) {
+ printf("%d - %s", i, phydev->drv->name);
- if (strcmp (devname, dev->name) == 0) {
- current_mii = dev;
- return 0;
+ if (phydev->dev)
+ printf(" <--> %s\n", phydev->dev->name);
+ else
+ printf("\n");
+ }
}
}
+}
+
+int miiphy_set_current_dev(const char *devname)
+{
+ struct mii_dev *dev;
+
+ dev = miiphy_get_dev_by_name(devname);
+ if (dev) {
+ current_mii = dev;
+ return 0;
+ }
+
+ printf("No such device: %s\n", devname);
- printf ("No such device: %s\n", devname);
return 1;
}
-char *miiphy_get_current_dev ()
+struct mii_dev *mdio_get_current_dev(void)
+{
+ return current_mii;
+}
+
+struct phy_device *mdio_phydev_for_ethname(const char *ethname)
+{
+ struct list_head *entry;
+ struct mii_dev *bus;
+
+ list_for_each(entry, &mii_devs) {
+ int i;
+ bus = list_entry(entry, struct mii_dev, link);
+
+ for (i = 0; i < PHY_MAX_ADDR; i++) {
+ if (!bus->phymap[i] || !bus->phymap[i]->dev)
+ continue;
+
+ if (strcmp(bus->phymap[i]->dev->name, ethname) == 0)
+ return bus->phymap[i];
+ }
+ }
+
+ printf("%s is not a known ethernet\n", ethname);
+ return NULL;
+}
+
+const char *miiphy_get_current_dev(void)
{
if (current_mii)
return current_mii->name;
return NULL;
}
+static struct mii_dev *miiphy_get_active_dev(const char *devname)
+{
+ /* If the current mii is the one we want, return it */
+ if (current_mii)
+ if (strcmp(current_mii->name, devname) == 0)
+ return current_mii;
+
+ /* Otherwise, set the active one to the one we want */
+ if (miiphy_set_current_dev(devname))
+ return NULL;
+ else
+ return current_mii;
+}
+
/*****************************************************************************
*
* Read to variable <value> from the PHY attached to device <devname>,
* use PHY address <addr> and register <reg>.
*
+ * This API is deprecated. Use phy_read on a phy_device found via phy_connect
+ *
* Returns:
* 0 on success
*/
-int miiphy_read (char *devname, unsigned char addr, unsigned char reg,
+int miiphy_read(const char *devname, unsigned char addr, unsigned char reg,
unsigned short *value)
{
- struct list_head *entry;
- struct mii_dev *dev;
- int found_dev = 0;
- int read_ret = 0;
+ struct mii_dev *bus;
+ int ret;
- if (!devname) {
- printf ("NULL device name!\n");
+ bus = miiphy_get_active_dev(devname);
+ if (!bus)
return 1;
- }
-
- list_for_each (entry, &mii_devs) {
- dev = list_entry (entry, struct mii_dev, link);
- if (strcmp (devname, dev->name) == 0) {
- found_dev = 1;
- read_ret = dev->read (devname, addr, reg, value);
- break;
- }
- }
-
- if (found_dev == 0)
- printf ("No such device: %s\n", devname);
+ ret = bus->read(bus, addr, MDIO_DEVAD_NONE, reg);
+ if (ret < 0)
+ return 1;
- return ((found_dev) ? read_ret : 1);
+ *value = (unsigned short)ret;
+ return 0;
}
/*****************************************************************************
* Write <value> to the PHY attached to device <devname>,
* use PHY address <addr> and register <reg>.
*
+ * This API is deprecated. Use phy_write on a phy_device found by phy_connect
+ *
* Returns:
* 0 on success
*/
-int miiphy_write (char *devname, unsigned char addr, unsigned char reg,
+int miiphy_write(const char *devname, unsigned char addr, unsigned char reg,
unsigned short value)
{
- struct list_head *entry;
- struct mii_dev *dev;
- int found_dev = 0;
- int write_ret = 0;
+ struct mii_dev *bus;
- if (!devname) {
- printf ("NULL device name!\n");
- return 1;
- }
-
- list_for_each (entry, &mii_devs) {
- dev = list_entry (entry, struct mii_dev, link);
-
- if (strcmp (devname, dev->name) == 0) {
- found_dev = 1;
- write_ret = dev->write (devname, addr, reg, value);
- break;
- }
- }
+ bus = miiphy_get_active_dev(devname);
+ if (bus)
+ return bus->write(bus, addr, MDIO_DEVAD_NONE, reg, value);
- if (found_dev == 0)
- printf ("No such device: %s\n", devname);
-
- return ((found_dev) ? write_ret : 1);
+ return 1;
}
/*****************************************************************************
*
* Print out list of registered MII capable devices.
*/
-void miiphy_listdev (void)
+void miiphy_listdev(void)
{
struct list_head *entry;
struct mii_dev *dev;
- puts ("MII devices: ");
- list_for_each (entry, &mii_devs) {
- dev = list_entry (entry, struct mii_dev, link);
- printf ("'%s' ", dev->name);
+ puts("MII devices: ");
+ list_for_each(entry, &mii_devs) {
+ dev = list_entry(entry, struct mii_dev, link);
+ printf("'%s' ", dev->name);
}
- puts ("\n");
+ puts("\n");
if (current_mii)
- printf ("Current device: '%s'\n", current_mii->name);
+ printf("Current device: '%s'\n", current_mii->name);
}
/*****************************************************************************
* Model: 6 bits (unsigned char)
* Revision: 4 bits (unsigned char)
*
+ * This API is deprecated.
+ *
* Returns:
* 0 on success
*/
-int miiphy_info (char *devname, unsigned char addr, unsigned int *oui,
+int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui,
unsigned char *model, unsigned char *rev)
{
unsigned int reg = 0;
unsigned short tmp;
- if (miiphy_read (devname, addr, PHY_PHYIDR2, &tmp) != 0) {
- debug ("PHY ID register 2 read failed\n");
- return (-1);
+ if (miiphy_read(devname, addr, MII_PHYSID2, &tmp) != 0) {
+ debug("PHY ID register 2 read failed\n");
+ return -1;
}
reg = tmp;
- debug ("PHY_PHYIDR2 @ 0x%x = 0x%04x\n", addr, reg);
+ debug("MII_PHYSID2 @ 0x%x = 0x%04x\n", addr, reg);
if (reg == 0xFFFF) {
/* No physical device present at this address */
- return (-1);
+ return -1;
}
- if (miiphy_read (devname, addr, PHY_PHYIDR1, &tmp) != 0) {
- debug ("PHY ID register 1 read failed\n");
- return (-1);
+ if (miiphy_read(devname, addr, MII_PHYSID1, &tmp) != 0) {
+ debug("PHY ID register 1 read failed\n");
+ return -1;
}
reg |= tmp << 16;
- debug ("PHY_PHYIDR[1,2] @ 0x%x = 0x%08x\n", addr, reg);
+ debug("PHY_PHYIDR[1,2] @ 0x%x = 0x%08x\n", addr, reg);
*oui = (reg >> 10);
*model = (unsigned char)((reg >> 4) & 0x0000003F);
*rev = (unsigned char)(reg & 0x0000000F);
- return (0);
+ return 0;
}
+#ifndef CONFIG_PHYLIB
/*****************************************************************************
*
* Reset the PHY.
+ *
+ * This API is deprecated. Use PHYLIB.
+ *
* Returns:
* 0 on success
*/
-int miiphy_reset (char *devname, unsigned char addr)
+int miiphy_reset(const char *devname, unsigned char addr)
{
unsigned short reg;
- int loop_cnt;
+ int timeout = 500;
- if (miiphy_read (devname, addr, PHY_BMCR, ®) != 0) {
- debug ("PHY status read failed\n");
- return (-1);
+ if (miiphy_read(devname, addr, MII_BMCR, ®) != 0) {
+ debug("PHY status read failed\n");
+ return -1;
}
- if (miiphy_write (devname, addr, PHY_BMCR, reg | 0x8000) != 0) {
- debug ("PHY reset failed\n");
- return (-1);
+ if (miiphy_write(devname, addr, MII_BMCR, reg | BMCR_RESET) != 0) {
+ debug("PHY reset failed\n");
+ return -1;
}
#ifdef CONFIG_PHY_RESET_DELAY
- udelay (CONFIG_PHY_RESET_DELAY); /* Intel LXT971A needs this */
+ udelay(CONFIG_PHY_RESET_DELAY); /* Intel LXT971A needs this */
#endif
/*
* Poll the control register for the reset bit to go to 0 (it is
* auto-clearing). This should happen within 0.5 seconds per the
* IEEE spec.
*/
- loop_cnt = 0;
reg = 0x8000;
- while (((reg & 0x8000) != 0) && (loop_cnt++ < 1000000)) {
- if (miiphy_read (devname, addr, PHY_BMCR, ®) != 0) {
- debug ("PHY status read failed\n");
- return (-1);
+ while (((reg & 0x8000) != 0) && timeout--) {
+ if (miiphy_read(devname, addr, MII_BMCR, ®) != 0) {
+ debug("PHY status read failed\n");
+ return -1;
}
+ udelay(1000);
}
if ((reg & 0x8000) == 0) {
- return (0);
+ return 0;
} else {
- puts ("PHY reset timed out\n");
- return (-1);
+ puts("PHY reset timed out\n");
+ return -1;
}
- return (0);
+ return 0;
}
+#endif /* !PHYLIB */
/*****************************************************************************
*
* Determine the ethernet speed (10/100/1000). Return 10 on error.
*/
-int miiphy_speed (char *devname, unsigned char addr)
+int miiphy_speed(const char *devname, unsigned char addr)
{
u16 bmcr, anlpar;
* Check for 1000BASE-X. If it is supported, then assume that the speed
* is 1000.
*/
- if (miiphy_is_1000base_x (devname, addr)) {
+ if (miiphy_is_1000base_x(devname, addr))
return _1000BASET;
- }
+
/*
* No 1000BASE-X, so assume 1000BASE-T/100BASE-TX/10BASE-T register set.
*/
/* Check for 1000BASE-T. */
- if (miiphy_read (devname, addr, PHY_1000BTSR, &btsr)) {
- printf ("PHY 1000BT status");
+ if (miiphy_read(devname, addr, MII_STAT1000, &btsr)) {
+ printf("PHY 1000BT status");
goto miiphy_read_failed;
}
if (btsr != 0xFFFF &&
- (btsr & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD))) {
+ (btsr & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)))
return _1000BASET;
- }
#endif /* CONFIG_PHY_GIGE */
/* Check Basic Management Control Register first. */
- if (miiphy_read (devname, addr, PHY_BMCR, &bmcr)) {
- printf ("PHY speed");
+ if (miiphy_read(devname, addr, MII_BMCR, &bmcr)) {
+ printf("PHY speed");
goto miiphy_read_failed;
}
/* Check if auto-negotiation is on. */
- if (bmcr & PHY_BMCR_AUTON) {
+ if (bmcr & BMCR_ANENABLE) {
/* Get auto-negotiation results. */
- if (miiphy_read (devname, addr, PHY_ANLPAR, &anlpar)) {
- printf ("PHY AN speed");
+ if (miiphy_read(devname, addr, MII_LPA, &anlpar)) {
+ printf("PHY AN speed");
goto miiphy_read_failed;
}
- return (anlpar & PHY_ANLPAR_100) ? _100BASET : _10BASET;
+ return (anlpar & LPA_100) ? _100BASET : _10BASET;
}
/* Get speed from basic control settings. */
- return (bmcr & PHY_BMCR_100MB) ? _100BASET : _10BASET;
+ return (bmcr & BMCR_SPEED100) ? _100BASET : _10BASET;
- miiphy_read_failed:
- printf (" read failed, assuming 10BASE-T\n");
+miiphy_read_failed:
+ printf(" read failed, assuming 10BASE-T\n");
return _10BASET;
}
*
* Determine full/half duplex. Return half on error.
*/
-int miiphy_duplex (char *devname, unsigned char addr)
+int miiphy_duplex(const char *devname, unsigned char addr)
{
u16 bmcr, anlpar;
u16 btsr;
/* Check for 1000BASE-X. */
- if (miiphy_is_1000base_x (devname, addr)) {
+ if (miiphy_is_1000base_x(devname, addr)) {
/* 1000BASE-X */
- if (miiphy_read (devname, addr, PHY_ANLPAR, &anlpar)) {
- printf ("1000BASE-X PHY AN duplex");
+ if (miiphy_read(devname, addr, MII_LPA, &anlpar)) {
+ printf("1000BASE-X PHY AN duplex");
goto miiphy_read_failed;
}
}
* No 1000BASE-X, so assume 1000BASE-T/100BASE-TX/10BASE-T register set.
*/
/* Check for 1000BASE-T. */
- if (miiphy_read (devname, addr, PHY_1000BTSR, &btsr)) {
- printf ("PHY 1000BT status");
+ if (miiphy_read(devname, addr, MII_STAT1000, &btsr)) {
+ printf("PHY 1000BT status");
goto miiphy_read_failed;
}
if (btsr != 0xFFFF) {
#endif /* CONFIG_PHY_GIGE */
/* Check Basic Management Control Register first. */
- if (miiphy_read (devname, addr, PHY_BMCR, &bmcr)) {
- puts ("PHY duplex");
+ if (miiphy_read(devname, addr, MII_BMCR, &bmcr)) {
+ puts("PHY duplex");
goto miiphy_read_failed;
}
/* Check if auto-negotiation is on. */
- if (bmcr & PHY_BMCR_AUTON) {
+ if (bmcr & BMCR_ANENABLE) {
/* Get auto-negotiation results. */
- if (miiphy_read (devname, addr, PHY_ANLPAR, &anlpar)) {
- puts ("PHY AN duplex");
+ if (miiphy_read(devname, addr, MII_LPA, &anlpar)) {
+ puts("PHY AN duplex");
goto miiphy_read_failed;
}
- return (anlpar & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) ?
+ return (anlpar & (LPA_10FULL | LPA_100FULL)) ?
FULL : HALF;
}
/* Get speed from basic control settings. */
- return (bmcr & PHY_BMCR_DPLX) ? FULL : HALF;
+ return (bmcr & BMCR_FULLDPLX) ? FULL : HALF;
- miiphy_read_failed:
- printf (" read failed, assuming half duplex\n");
+miiphy_read_failed:
+ printf(" read failed, assuming half duplex\n");
return HALF;
}
* Return 1 if PHY supports 1000BASE-X, 0 if PHY supports 10BASE-T/100BASE-TX/
* 1000BASE-T, or on error.
*/
-int miiphy_is_1000base_x (char *devname, unsigned char addr)
+int miiphy_is_1000base_x(const char *devname, unsigned char addr)
{
#if defined(CONFIG_PHY_GIGE)
u16 exsr;
- if (miiphy_read (devname, addr, PHY_EXSR, &exsr)) {
- printf ("PHY extended status read failed, assuming no "
+ if (miiphy_read(devname, addr, MII_ESTATUS, &exsr)) {
+ printf("PHY extended status read failed, assuming no "
"1000BASE-X\n");
return 0;
}
- return 0 != (exsr & (PHY_EXSR_1000XF | PHY_EXSR_1000XH));
+ return 0 != (exsr & (ESTATUS_1000XF | ESTATUS_1000XH));
#else
return 0;
#endif
}
-#ifdef CFG_FAULT_ECHO_LINK_DOWN
+#ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
/*****************************************************************************
*
* Determine link status
*/
-int miiphy_link (char *devname, unsigned char addr)
+int miiphy_link(const char *devname, unsigned char addr)
{
unsigned short reg;
/* dummy read; needed to latch some phys */
- (void)miiphy_read (devname, addr, PHY_BMSR, ®);
- if (miiphy_read (devname, addr, PHY_BMSR, ®)) {
- puts ("PHY_BMSR read failed, assuming no link\n");
- return (0);
+ (void)miiphy_read(devname, addr, MII_BMSR, ®);
+ if (miiphy_read(devname, addr, MII_BMSR, ®)) {
+ puts("MII_BMSR read failed, assuming no link\n");
+ return 0;
}
/* Determine if a link is active */
- if ((reg & PHY_BMSR_LS) != 0) {
- return (1);
+ if ((reg & BMSR_LSTATUS) != 0) {
+ return 1;
} else {
- return (0);
+ return 0;
}
}
#endif
projects / karo-tx-uboot.git / blobdiff