#include <common.h>
#include <miiphy.h>
-#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
#include <asm/types.h>
#include <linux/list.h>
#include <malloc.h>
#include <net.h>
/* local debug macro */
-#define MII_DEBUG
#undef MII_DEBUG
#undef debug
unsigned short tmp;
if (miiphy_read (devname, addr, PHY_PHYIDR2, &tmp) != 0) {
-#ifdef DEBUG
- puts ("PHY ID register 2 read failed\n");
-#endif
+ 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 (devname, addr, PHY_PHYIDR1, &tmp) != 0) {
-#ifdef DEBUG
- puts ("PHY ID register 1 read failed\n");
-#endif
+ 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
+ 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);
int miiphy_reset (char *devname, unsigned char addr)
{
unsigned short reg;
- int loop_cnt;
+ int timeout = 500;
if (miiphy_read (devname, addr, PHY_BMCR, ®) != 0) {
-#ifdef DEBUG
- printf ("PHY status read failed\n");
-#endif
+ debug ("PHY status read failed\n");
return (-1);
}
- if (miiphy_write (devname, 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 (devname, 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);
/*****************************************************************************
*
- * Determine the ethernet speed (10/100).
+ * Determine the ethernet speed (10/100/1000). Return 10 on error.
*/
int miiphy_speed (char *devname, unsigned char addr)
{
- unsigned short reg;
+ u16 bmcr, anlpar;
#if defined(CONFIG_PHY_GIGE)
- if (miiphy_read (devname, 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 (devname, 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 (devname, 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 (char *devname, unsigned char addr)
{
- unsigned short reg;
+ u16 bmcr, anlpar;
#if defined(CONFIG_PHY_GIGE)
- if (miiphy_read (devname, 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 (devname, 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 (devname, 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
}
}
#endif
-#endif /* CONFIG_MII */
projects / karo-tx-uboot.git / blobdiff