#include <common.h>
#include <miiphy.h>
-#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
+#include <asm/types.h>
+#include <linux/list.h>
+#include <malloc.h>
+#include <net.h>
+
+/* local debug macro */
+#undef MII_DEBUG
+
+#undef debug
+#ifdef MII_DEBUG
+#define debug(fmt,args...) printf (fmt ,##args)
+#else
+#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;
+
+/*****************************************************************************
+ *
+ * Initialize global data. Need to be called before any other miiphy routine.
+ */
+void miiphy_init ()
+{
+ INIT_LIST_HEAD (&mii_devs);
+ current_mii = NULL;
+}
+
+/*****************************************************************************
+ *
+ * Register read and write MII access routines for the device <name>.
+ */
+void miiphy_register (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))
+{
+ struct list_head *entry;
+ struct mii_dev *new_dev;
+ struct mii_dev *miidev;
+ unsigned int 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;
+ }
+ }
+
+ /* allocate memory */
+ name_len = strlen (name);
+ new_dev =
+ (struct mii_dev *)malloc (sizeof (struct mii_dev) + name_len + 1);
+
+ if (new_dev == 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';
+
+ debug ("miiphy_register: added '%s', read=0x%08lx, write=0x%08lx\n",
+ new_dev->name, new_dev->read, new_dev->write);
+
+ /* add it to the list */
+ list_add_tail (&new_dev->link, &mii_devs);
+
+ if (!current_mii)
+ current_mii = new_dev;
+}
+
+int miiphy_set_current_dev (char *devname)
+{
+ struct list_head *entry;
+ struct mii_dev *dev;
+
+ list_for_each (entry, &mii_devs) {
+ dev = list_entry (entry, struct mii_dev, link);
+
+ if (strcmp (devname, dev->name) == 0) {
+ current_mii = dev;
+ return 0;
+ }
+ }
+
+ printf ("No such device: %s\n", devname);
+ return 1;
+}
+
+char *miiphy_get_current_dev ()
+{
+ if (current_mii)
+ return current_mii->name;
+
+ return NULL;
+}
+
+/*****************************************************************************
+ *
+ * Read to variable <value> from the PHY attached to device <devname>,
+ * use PHY address <addr> and register <reg>.
+ *
+ * Returns:
+ * 0 on success
+ */
+int miiphy_read (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;
+
+ 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;
+ read_ret = dev->read (devname, addr, reg, value);
+ break;
+ }
+ }
+
+ if (found_dev == 0)
+ printf ("No such device: %s\n", devname);
+
+ return ((found_dev) ? read_ret : 1);
+}
+
+/*****************************************************************************
+ *
+ * Write <value> to the PHY attached to device <devname>,
+ * use PHY address <addr> and register <reg>.
+ *
+ * Returns:
+ * 0 on success
+ */
+int miiphy_write (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;
+
+ 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;
+ }
+ }
+
+ if (found_dev == 0)
+ printf ("No such device: %s\n", devname);
+
+ return ((found_dev) ? write_ret : 1);
+}
+
+/*****************************************************************************
+ *
+ * Print out list of registered MII capable devices.
+ */
+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 ("\n");
+
+ if (current_mii)
+ printf ("Current device: '%s'\n", current_mii->name);
+}
/*****************************************************************************
*
* Returns:
* 0 on success
*/
-int miiphy_info (unsigned char addr,
- unsigned int *oui,
+int miiphy_info (char *devname, unsigned char addr, unsigned int *oui,
unsigned char *model, unsigned char *rev)
{
unsigned int reg = 0;
unsigned short tmp;
- if (miiphy_read (addr, PHY_PHYIDR2, &tmp) != 0) {
-#ifdef DEBUG
- puts ("PHY ID register 2 read failed\n");
-#endif
+ if (miiphy_read (devname, addr, PHY_PHYIDR2, &tmp) != 0) {
+ debug ("PHY ID register 2 read failed\n");
return (-1);
}
reg = tmp;
-#ifdef DEBUG
- printf ("PHY_PHYIDR2 @ 0x%x = 0x%04x\n", addr, reg);
-#endif
+ debug ("PHY_PHYIDR2 @ 0x%x = 0x%04x\n", addr, reg);
+
if (reg == 0xFFFF) {
/* No physical device present at this address */
return (-1);
}
- if (miiphy_read (addr, PHY_PHYIDR1, &tmp) != 0) {
-#ifdef DEBUG
- puts ("PHY ID register 1 read failed\n");
-#endif
+ if (miiphy_read (devname, addr, PHY_PHYIDR1, &tmp) != 0) {
+ debug ("PHY ID register 1 read failed\n");
return (-1);
}
reg |= tmp << 16;
-#ifdef DEBUG
- printf ("PHY_PHYIDR[1,2] @ 0x%x = 0x%08x\n", addr, reg);
-#endif
- *oui = ( reg >> 10);
- *model = (unsigned char) ((reg >> 4) & 0x0000003F);
- *rev = (unsigned char) ( reg & 0x0000000F);
+ 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);
}
-
/*****************************************************************************
*
* Reset the PHY.
* Returns:
* 0 on success
*/
-int miiphy_reset (unsigned char addr)
+int miiphy_reset (char *devname, unsigned char addr)
{
unsigned short reg;
- int loop_cnt;
+ int timeout = 500;
- if (miiphy_read (addr, PHY_BMCR, ®) != 0) {
-#ifdef DEBUG
- printf ("PHY status read failed\n");
-#endif
+ if (miiphy_read (devname, addr, PHY_BMCR, ®) != 0) {
+ debug ("PHY status read failed\n");
return (-1);
}
- if (miiphy_write (addr, PHY_BMCR, reg | 0x8000) != 0) {
-#ifdef DEBUG
- puts ("PHY reset failed\n");
-#endif
+ if (miiphy_write (devname, addr, PHY_BMCR, reg | PHY_BMCR_RESET) != 0) {
+ debug ("PHY reset failed\n");
return (-1);
}
#ifdef CONFIG_PHY_RESET_DELAY
* 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 (addr, PHY_BMCR, ®) != 0) {
-# ifdef DEBUG
- puts ("PHY status read failed\n");
-# endif
- return (-1);
+ while (((reg & 0x8000) != 0) && timeout--) {
+ if (miiphy_read(devname, addr, PHY_BMCR, ®) != 0) {
+ debug("PHY status read failed\n");
+ return -1;
}
+ udelay(1000);
}
if ((reg & 0x8000) == 0) {
return (0);
return (0);
}
-
/*****************************************************************************
*
- * Determine the ethernet speed (10/100).
+ * Determine the ethernet speed (10/100/1000). Return 10 on error.
*/
-int miiphy_speed (unsigned char addr)
+int miiphy_speed (char *devname, unsigned char addr)
{
- unsigned short reg;
+ u16 bmcr, anlpar;
#if defined(CONFIG_PHY_GIGE)
- if (miiphy_read (addr, PHY_1000BTSR, ®)) {
- printf ("PHY 1000BT Status read failed\n");
- } else {
- if (reg != 0xFFFF) {
- if ((reg & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) !=0) {
- return (_1000BASET);
- }
- }
+ u16 btsr;
+
+ /*
+ * Check for 1000BASE-X. If it is supported, then assume that the speed
+ * is 1000.
+ */
+ 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");
+ goto miiphy_read_failed;
+ }
+ if (btsr != 0xFFFF &&
+ (btsr & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD))) {
+ return _1000BASET;
}
#endif /* CONFIG_PHY_GIGE */
/* Check Basic Management Control Register first. */
- if (miiphy_read (addr, PHY_BMCR, ®)) {
- puts ("PHY speed read failed, assuming 10bT\n");
- return (_10BASET);
+ if (miiphy_read (devname, addr, PHY_BMCR, &bmcr)) {
+ printf ("PHY speed");
+ goto miiphy_read_failed;
}
/* Check if auto-negotiation is on. */
- if ((reg & PHY_BMCR_AUTON) != 0) {
+ if (bmcr & PHY_BMCR_AUTON) {
/* Get auto-negotiation results. */
- if (miiphy_read (addr, PHY_ANLPAR, ®)) {
- puts ("PHY AN speed read failed, assuming 10bT\n");
- return (_10BASET);
- }
- if ((reg & PHY_ANLPAR_100) != 0) {
- return (_100BASET);
- } else {
- return (_10BASET);
+ if (miiphy_read (devname, addr, PHY_ANLPAR, &anlpar)) {
+ printf ("PHY AN speed");
+ goto miiphy_read_failed;
}
+ return (anlpar & PHY_ANLPAR_100) ? _100BASET : _10BASET;
}
/* Get speed from basic control settings. */
- else if (reg & PHY_BMCR_100MB) {
- return (_100BASET);
- } else {
- return (_10BASET);
- }
+ return (bmcr & PHY_BMCR_100MB) ? _100BASET : _10BASET;
+miiphy_read_failed:
+ printf (" read failed, assuming 10BASE-T\n");
+ return _10BASET;
}
-
/*****************************************************************************
*
- * Determine full/half duplex.
+ * Determine full/half duplex. Return half on error.
*/
-int miiphy_duplex (unsigned char addr)
+int miiphy_duplex (char *devname, unsigned char addr)
{
- unsigned short reg;
+ u16 bmcr, anlpar;
#if defined(CONFIG_PHY_GIGE)
- if (miiphy_read (addr, PHY_1000BTSR, ®)) {
- printf ("PHY 1000BT Status read failed\n");
- } else {
- if ( (reg != 0xFFFF) &&
- (reg & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) ) {
- if ((reg & PHY_1000BTSR_1000FD) !=0) {
- return (FULL);
- } else {
- return (HALF);
- }
+ u16 btsr;
+
+ /* Check for 1000BASE-X. */
+ if (miiphy_is_1000base_x (devname, addr)) {
+ /* 1000BASE-X */
+ if (miiphy_read (devname, addr, PHY_ANLPAR, &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");
+ goto miiphy_read_failed;
+ }
+ if (btsr != 0xFFFF) {
+ if (btsr & PHY_1000BTSR_1000FD) {
+ return FULL;
+ } else if (btsr & PHY_1000BTSR_1000HD) {
+ return HALF;
}
}
#endif /* CONFIG_PHY_GIGE */
/* Check Basic Management Control Register first. */
- if (miiphy_read (addr, PHY_BMCR, ®)) {
- puts ("PHY duplex read failed, assuming half duplex\n");
- return (HALF);
+ if (miiphy_read (devname, addr, PHY_BMCR, &bmcr)) {
+ puts ("PHY duplex");
+ goto miiphy_read_failed;
}
/* Check if auto-negotiation is on. */
- if ((reg & PHY_BMCR_AUTON) != 0) {
+ if (bmcr & PHY_BMCR_AUTON) {
/* Get auto-negotiation results. */
- if (miiphy_read (addr, PHY_ANLPAR, ®)) {
- puts ("PHY AN duplex read failed, assuming half duplex\n");
- return (HALF);
- }
-
- if ((reg & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) != 0) {
- return (FULL);
- } else {
- return (HALF);
+ if (miiphy_read (devname, addr, PHY_ANLPAR, &anlpar)) {
+ puts ("PHY AN duplex");
+ goto miiphy_read_failed;
}
+ return (anlpar & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) ?
+ FULL : HALF;
}
/* Get speed from basic control settings. */
- else if (reg & PHY_BMCR_DPLX) {
- return (FULL);
- } else {
- return (HALF);
- }
+ return (bmcr & PHY_BMCR_DPLX) ? FULL : HALF;
+
+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)
+{
+#if defined(CONFIG_PHY_GIGE)
+ u16 exsr;
+ if (miiphy_read (devname, addr, PHY_EXSR, &exsr)) {
+ printf ("PHY extended status read failed, assuming no "
+ "1000BASE-X\n");
+ return 0;
+ }
+ return 0 != (exsr & (PHY_EXSR_1000XF | PHY_EXSR_1000XH));
+#else
+ return 0;
+#endif
}
-#ifdef CFG_FAULT_ECHO_LINK_DOWN
+#ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
/*****************************************************************************
*
* Determine link status
*/
-int miiphy_link (unsigned char addr)
+int miiphy_link (char *devname, unsigned char addr)
{
unsigned short reg;
/* dummy read; needed to latch some phys */
- (void)miiphy_read(addr, PHY_BMSR, ®);
- if (miiphy_read (addr, PHY_BMSR, ®)) {
+ (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);
}
}
}
#endif
-
-#endif /* CONFIG_MII || (CONFIG_COMMANDS & CFG_CMD_MII) */
projects / karo-tx-uboot.git / blobdiff