diff options
Diffstat (limited to 'common/miiphyutil.c')
| -rw-r--r-- | common/miiphyutil.c | 311 |
1 files changed, 210 insertions, 101 deletions
diff --git a/common/miiphyutil.c b/common/miiphyutil.c index e282096..243cae9 100644 --- a/common/miiphyutil.c +++ b/common/miiphyutil.c @@ -28,6 +28,7 @@ #include <common.h> #include <miiphy.h> +#include <phy.h> #include <asm/types.h> #include <linux/list.h> @@ -39,27 +40,18 @@ #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; - const char *name; - int (*read) (const char *devname, unsigned char addr, - unsigned char reg, unsigned short *value); - int (*write) (const 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. */ -static struct mii_dev *miiphy_get_dev_by_name(const char *devname, int quiet) +struct mii_dev *miiphy_get_dev_by_name(const char *devname) { struct list_head *entry; struct mii_dev *dev; @@ -75,8 +67,6 @@ static struct mii_dev *miiphy_get_dev_by_name(const char *devname, int quiet) return dev; } - if (!quiet) - printf("No such device: %s\n", devname); return NULL; } @@ -86,74 +76,190 @@ static struct mii_dev *miiphy_get_dev_by_name(const char *devname, int quiet) */ 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>. */ void miiphy_register(const char *name, - int (*read) (const char *devname, unsigned char addr, + int (*read)(const char *devname, unsigned char addr, unsigned char reg, unsigned short *value), - int (*write) (const char *devname, unsigned char addr, + int (*write)(const char *devname, unsigned char addr, unsigned char reg, unsigned short value)) { struct mii_dev *new_dev; + struct legacy_mii_dev *ldev; unsigned int name_len; - char *new_name; /* check if we have unique name */ - new_dev = miiphy_get_dev_by_name(name, 1); + 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); + name_len = strlen(name); + if (name_len > MDIO_NAME_LEN - 1) { + /* Hopefully this won't happen, but if it does, we'll know */ + printf("miiphy_register: MDIO name was longer than %d\n", + MDIO_NAME_LEN); + return; + } + + 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 = new_name = (char *)(new_dev + 1); - strncpy (new_name, name, name_len); - new_name[name_len] = '\0'; + new_dev->read = legacy_miiphy_read; + new_dev->write = legacy_miiphy_write; + sprintf(new_dev->name, name); + 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; } +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; + + 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 (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, 0); + dev = miiphy_get_dev_by_name(devname); if (dev) { current_mii = dev; return 0; } + printf("No such device: %s\n", devname); + return 1; } +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) @@ -187,13 +293,15 @@ static struct mii_dev *miiphy_get_active_dev(const char *devname) int miiphy_read(const char *devname, unsigned char addr, unsigned char reg, unsigned short *value) { - struct mii_dev *dev; + struct mii_dev *bus; - dev = miiphy_get_active_dev(devname); - if (dev) - return dev->read(devname, addr, reg, value); + bus = miiphy_get_active_dev(devname); + if (bus) + *value = bus->read(bus, addr, MDIO_DEVAD_NONE, reg); + else + return 1; - return 1; + return (*value < 0) ? 1 : 0; } /***************************************************************************** @@ -207,11 +315,11 @@ int miiphy_read(const char *devname, unsigned char addr, unsigned char reg, int miiphy_write(const char *devname, unsigned char addr, unsigned char reg, unsigned short value) { - struct mii_dev *dev; + struct mii_dev *bus; - dev = miiphy_get_active_dev(devname); - if (dev) - return dev->write(devname, addr, reg, value); + bus = miiphy_get_active_dev(devname); + if (bus) + return bus->write(bus, addr, MDIO_DEVAD_NONE, reg, value); return 1; } @@ -220,20 +328,20 @@ int miiphy_write(const char *devname, unsigned char addr, unsigned char reg, * * 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); } /***************************************************************************** @@ -253,32 +361,33 @@ int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui, unsigned int reg = 0; unsigned short tmp; - if (miiphy_read (devname, addr, MII_PHYSID2, &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 ("MII_PHYSID2 @ 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, MII_PHYSID1, &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. @@ -290,16 +399,16 @@ int miiphy_reset(const char *devname, unsigned char addr) unsigned short reg; int timeout = 500; - if (miiphy_read (devname, addr, MII_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, MII_BMCR, reg | BMCR_RESET) != 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 @@ -315,13 +424,14 @@ int miiphy_reset(const char *devname, unsigned char addr) 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 */ /***************************************************************************** * @@ -338,33 +448,32 @@ int miiphy_speed(const char *devname, unsigned char addr) * 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, MII_STAT1000, &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, MII_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 & BMCR_ANENABLE) { /* Get auto-negotiation results. */ - if (miiphy_read (devname, addr, MII_LPA, &anlpar)) { - printf ("PHY AN speed"); + if (miiphy_read(devname, addr, MII_LPA, &anlpar)) { + printf("PHY AN speed"); goto miiphy_read_failed; } return (anlpar & LPA_100) ? _100BASET : _10BASET; @@ -373,7 +482,7 @@ int miiphy_speed(const char *devname, unsigned char addr) return (bmcr & BMCR_SPEED100) ? _100BASET : _10BASET; miiphy_read_failed: - printf (" read failed, assuming 10BASE-T\n"); + printf(" read failed, assuming 10BASE-T\n"); return _10BASET; } @@ -389,10 +498,10 @@ int miiphy_duplex(const char *devname, unsigned char addr) 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, MII_LPA, &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; } } @@ -400,8 +509,8 @@ int miiphy_duplex(const char *devname, unsigned char addr) * No 1000BASE-X, so assume 1000BASE-T/100BASE-TX/10BASE-T register set. */ /* Check for 1000BASE-T. */ - if (miiphy_read (devname, addr, MII_STAT1000, &btsr)) { - printf ("PHY 1000BT status"); + if (miiphy_read(devname, addr, MII_STAT1000, &btsr)) { + printf("PHY 1000BT status"); goto miiphy_read_failed; } if (btsr != 0xFFFF) { @@ -414,15 +523,15 @@ int miiphy_duplex(const char *devname, unsigned char addr) #endif /* CONFIG_PHY_GIGE */ /* Check Basic Management Control Register first. */ - if (miiphy_read (devname, addr, MII_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 & BMCR_ANENABLE) { /* Get auto-negotiation results. */ - if (miiphy_read (devname, addr, MII_LPA, &anlpar)) { - puts ("PHY AN duplex"); + if (miiphy_read(devname, addr, MII_LPA, &anlpar)) { + puts("PHY AN duplex"); goto miiphy_read_failed; } return (anlpar & (LPA_10FULL | LPA_100FULL)) ? @@ -432,7 +541,7 @@ int miiphy_duplex(const char *devname, unsigned char addr) return (bmcr & BMCR_FULLDPLX) ? FULL : HALF; miiphy_read_failed: - printf (" read failed, assuming half duplex\n"); + printf(" read failed, assuming half duplex\n"); return HALF; } @@ -446,8 +555,8 @@ int miiphy_is_1000base_x(const char *devname, unsigned char addr) #if defined(CONFIG_PHY_GIGE) u16 exsr; - if (miiphy_read (devname, addr, MII_ESTATUS, &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; } @@ -467,17 +576,17 @@ int miiphy_link(const char *devname, unsigned char addr) unsigned short reg; /* dummy read; needed to latch some phys */ - (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); + (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 & BMSR_LSTATUS) != 0) { - return (1); + return 1; } else { - return (0); + return 0; } } #endif |