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authorTom Rini <trini@ti.com>2013-02-12 10:18:31 -0500
committerTom Rini <trini@ti.com>2013-02-12 10:18:31 -0500
commit951c6baaf44c7fd4335b75fb92840d4e42c94927 (patch)
tree6a09cce20c4f3affb7b500d018eb84f848e42c20 /drivers/net
parent58864ddc7276ca7403ddbb716da5853638f37519 (diff)
parentfd8e1c3866578d87ed14a04a59faae341fd415df (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/fec_mxc.c164
-rw-r--r--drivers/net/fec_mxc.h2
-rw-r--r--drivers/net/phy/phy.c128
3 files changed, 169 insertions, 125 deletions
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 3e232c7..4dbcdca 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -135,15 +135,15 @@ static int fec_mdio_read(struct ethernet_regs *eth, uint8_t phyAddr,
return val;
}
-static void fec_mii_setspeed(struct fec_priv *fec)
+static void fec_mii_setspeed(struct ethernet_regs *eth)
{
/*
* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
* and do not drop the Preamble.
*/
writel((((imx_get_fecclk() / 1000000) + 2) / 5) << 1,
- &fec->eth->mii_speed);
- debug("%s: mii_speed %08x\n", __func__, readl(&fec->eth->mii_speed));
+ &eth->mii_speed);
+ debug("%s: mii_speed %08x\n", __func__, readl(&eth->mii_speed));
}
static int fec_mdio_write(struct ethernet_regs *eth, uint8_t phyAddr,
@@ -392,21 +392,6 @@ static int fec_set_hwaddr(struct eth_device *dev)
return 0;
}
-static void fec_eth_phy_config(struct eth_device *dev)
-{
-#ifdef CONFIG_PHYLIB
- struct fec_priv *fec = (struct fec_priv *)dev->priv;
- struct phy_device *phydev;
-
- phydev = phy_connect(fec->bus, fec->phy_id, dev,
- PHY_INTERFACE_MODE_RGMII);
- if (phydev) {
- fec->phydev = phydev;
- phy_config(phydev);
- }
-#endif
-}
-
/*
* Do initial configuration of the FEC registers
*/
@@ -511,9 +496,7 @@ static int fec_open(struct eth_device *edev)
#endif
#ifdef CONFIG_PHYLIB
- if (!fec->phydev)
- fec_eth_phy_config(edev);
- if (fec->phydev) {
+ {
/* Start up the PHY */
int ret = phy_startup(fec->phydev);
@@ -523,8 +506,6 @@ static int fec_open(struct eth_device *edev)
return ret;
}
speed = fec->phydev->speed;
- } else {
- speed = _100BASET;
}
#else
miiphy_wait_aneg(edev);
@@ -611,7 +592,7 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
fec_reg_setup(fec);
if (fec->xcv_type != SEVENWIRE)
- fec_mii_setspeed(fec);
+ fec_mii_setspeed(fec->bus->priv);
/*
* Set Opcode/Pause Duration Register
@@ -915,11 +896,21 @@ static int fec_recv(struct eth_device *dev)
return len;
}
-static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
+static void fec_set_dev_name(char *dest, int dev_id)
+{
+ sprintf(dest, (dev_id == -1) ? "FEC" : "FEC%i", dev_id);
+}
+
+#ifdef CONFIG_PHYLIB
+int fec_probe(bd_t *bd, int dev_id, uint32_t base_addr,
+ struct mii_dev *bus, struct phy_device *phydev)
+#else
+static int fec_probe(bd_t *bd, int dev_id, uint32_t base_addr,
+ struct mii_dev *bus, int phy_id)
+#endif
{
struct eth_device *edev;
struct fec_priv *fec;
- struct mii_dev *bus;
unsigned char ethaddr[6];
uint32_t start;
int ret = 0;
@@ -966,53 +957,25 @@ static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
}
fec_reg_setup(fec);
- fec_mii_setspeed(fec);
-
- if (dev_id == -1) {
- sprintf(edev->name, "FEC");
- fec->dev_id = 0;
- } else {
- sprintf(edev->name, "FEC%i", dev_id);
- fec->dev_id = dev_id;
- }
- fec->phy_id = phy_id;
-
- bus = mdio_alloc();
- if (!bus) {
- printf("mdio_alloc failed\n");
- ret = -ENOMEM;
- goto err3;
- }
- bus->read = fec_phy_read;
- bus->write = fec_phy_write;
- sprintf(bus->name, edev->name);
-#ifdef CONFIG_MX28
- /*
- * The i.MX28 has two ethernet interfaces, but they are not equal.
- * Only the first one can access the MDIO bus.
- */
- bus->priv = (struct ethernet_regs *)MXS_ENET0_BASE;
+ fec_set_dev_name(edev->name, dev_id);
+ fec->dev_id = (dev_id == -1) ? 0 : dev_id;
+ fec->bus = bus;
+ fec_mii_setspeed(bus->priv);
+#ifdef CONFIG_PHYLIB
+ fec->phydev = phydev;
+ phy_connect_dev(phydev, edev);
+ /* Configure phy */
+ phy_config(phydev);
#else
- bus->priv = fec->eth;
+ fec->phy_id = phy_id;
#endif
- ret = mdio_register(bus);
- if (ret) {
- printf("mdio_register failed\n");
- free(bus);
- ret = -ENOMEM;
- goto err3;
- }
- fec->bus = bus;
eth_register(edev);
if (fec_get_hwaddr(edev, dev_id, ethaddr) == 0) {
debug("got MAC%d address from fuse: %pM\n", dev_id, ethaddr);
memcpy(edev->enetaddr, ethaddr, 6);
}
- /* Configure phy */
- fec_eth_phy_config(edev);
return ret;
-
err3:
free(fec);
err2:
@@ -1021,27 +984,80 @@ err1:
return ret;
}
-#ifndef CONFIG_FEC_MXC_MULTI
-int fecmxc_initialize(bd_t *bd)
+struct mii_dev *fec_get_miibus(uint32_t base_addr, int dev_id)
{
- int lout = 1;
+ struct ethernet_regs *eth = (struct ethernet_regs *)base_addr;
+ struct mii_dev *bus;
+ int ret;
- debug("eth_init: fec_probe(bd)\n");
- lout = fec_probe(bd, -1, CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
+ bus = mdio_alloc();
+ if (!bus) {
+ printf("mdio_alloc failed\n");
+ return NULL;
+ }
+ bus->read = fec_phy_read;
+ bus->write = fec_phy_write;
+ bus->priv = eth;
+ fec_set_dev_name(bus->name, dev_id);
- return lout;
+ ret = mdio_register(bus);
+ if (ret) {
+ printf("mdio_register failed\n");
+ free(bus);
+ return NULL;
+ }
+ fec_mii_setspeed(eth);
+ return bus;
}
-#endif
int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr)
{
- int lout = 1;
+ uint32_t base_mii;
+ struct mii_dev *bus = NULL;
+#ifdef CONFIG_PHYLIB
+ struct phy_device *phydev = NULL;
+#endif
+ int ret;
+#ifdef CONFIG_MX28
+ /*
+ * The i.MX28 has two ethernet interfaces, but they are not equal.
+ * Only the first one can access the MDIO bus.
+ */
+ base_mii = MXS_ENET0_BASE;
+#else
+ base_mii = addr;
+#endif
debug("eth_init: fec_probe(bd, %i, %i) @ %08x\n", dev_id, phy_id, addr);
- lout = fec_probe(bd, dev_id, phy_id, addr);
+ bus = fec_get_miibus(base_mii, dev_id);
+ if (!bus)
+ return -ENOMEM;
+#ifdef CONFIG_PHYLIB
+ phydev = phy_find_by_mask(bus, 1 << phy_id, PHY_INTERFACE_MODE_RGMII);
+ if (!phydev) {
+ free(bus);
+ return -ENOMEM;
+ }
+ ret = fec_probe(bd, dev_id, addr, bus, phydev);
+#else
+ ret = fec_probe(bd, dev_id, addr, bus, phy_id);
+#endif
+ if (ret) {
+#ifdef CONFIG_PHYLIB
+ free(phydev);
+#endif
+ free(bus);
+ }
+ return ret;
+}
- return lout;
+#ifdef CONFIG_FEC_MXC_PHYADDR
+int fecmxc_initialize(bd_t *bd)
+{
+ return fecmxc_initialize_multi(bd, -1, CONFIG_FEC_MXC_PHYADDR,
+ IMX_FEC_BASE);
}
+#endif
#ifndef CONFIG_PHYLIB
int fecmxc_register_mii_postcall(struct eth_device *dev, int (*cb)(int))
diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h
index 203285a..b8f0da3 100644
--- a/drivers/net/fec_mxc.h
+++ b/drivers/net/fec_mxc.h
@@ -271,11 +271,11 @@ struct fec_priv {
bd_t *bd;
uint8_t *tdb_ptr;
int dev_id;
- int phy_id;
struct mii_dev *bus;
#ifdef CONFIG_PHYLIB
struct phy_device *phydev;
#else
+ int phy_id;
int (*mii_postcall)(int);
#endif
};
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 1ffa791..d0ed766 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -31,6 +31,7 @@
#include <miiphy.h>
#include <phy.h>
#include <errno.h>
+#include <linux/err.h>
/* Generic PHY support and helper functions */
@@ -574,6 +575,61 @@ static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
return 0;
}
+static struct phy_device *create_phy_by_mask(struct mii_dev *bus,
+ unsigned phy_mask, int devad, phy_interface_t interface)
+{
+ u32 phy_id = 0xffffffff;
+ while (phy_mask) {
+ int addr = ffs(phy_mask) - 1;
+ int r = get_phy_id(bus, addr, devad, &phy_id);
+ if (r < 0)
+ return ERR_PTR(r);
+ /* If the PHY ID is mostly f's, we didn't find anything */
+ if ((phy_id & 0x1fffffff) != 0x1fffffff)
+ return phy_device_create(bus, addr, phy_id, interface);
+ phy_mask &= ~(1 << addr);
+ }
+ return NULL;
+}
+
+static struct phy_device *search_for_existing_phy(struct mii_dev *bus,
+ unsigned phy_mask, phy_interface_t interface)
+{
+ /* If we have one, return the existing device, with new interface */
+ while (phy_mask) {
+ int addr = ffs(phy_mask) - 1;
+ if (bus->phymap[addr]) {
+ bus->phymap[addr]->interface = interface;
+ return bus->phymap[addr];
+ }
+ phy_mask &= ~(1 << addr);
+ }
+ return NULL;
+}
+
+static struct phy_device *get_phy_device_by_mask(struct mii_dev *bus,
+ unsigned phy_mask, phy_interface_t interface)
+{
+ int i;
+ struct phy_device *phydev;
+
+ phydev = search_for_existing_phy(bus, phy_mask, interface);
+ if (phydev)
+ return phydev;
+ /* Try Standard (ie Clause 22) access */
+ /* Otherwise we have to try Clause 45 */
+ for (i = 0; i < 5; i++) {
+ phydev = create_phy_by_mask(bus, phy_mask,
+ i ? i : MDIO_DEVAD_NONE, interface);
+ if (IS_ERR(phydev))
+ return NULL;
+ if (phydev)
+ return phydev;
+ }
+ printf("Phy not found\n");
+ return phy_device_create(bus, ffs(phy_mask) - 1, 0xffffffff, interface);
+}
+
/**
* get_phy_device - reads the specified PHY device and returns its @phy_device struct
* @bus: the target MII bus
@@ -585,38 +641,7 @@ static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
static struct phy_device *get_phy_device(struct mii_dev *bus, int addr,
phy_interface_t interface)
{
- u32 phy_id = 0x1fffffff;
- int i;
- int r;
-
- /* If we have one, return the existing device, with new interface */
- if (bus->phymap[addr]) {
- bus->phymap[addr]->interface = interface;
-
- return bus->phymap[addr];
- }
-
- /* Try Standard (ie Clause 22) access */
- r = get_phy_id(bus, addr, MDIO_DEVAD_NONE, &phy_id);
- if (r)
- return NULL;
-
- /* If the PHY ID is mostly f's, we didn't find anything */
- if ((phy_id & 0x1fffffff) != 0x1fffffff)
- return phy_device_create(bus, addr, phy_id, interface);
-
- /* Otherwise we have to try Clause 45 */
- for (i = 1; i < 5; i++) {
- r = get_phy_id(bus, addr, i, &phy_id);
- if (r)
- return NULL;
-
- /* If the phy_id is mostly Fs, there is no device there */
- if ((phy_id & 0x1fffffff) != 0x1fffffff)
- break;
- }
-
- return phy_device_create(bus, addr, phy_id, interface);
+ return get_phy_device_by_mask(bus, 1 << addr, interface);
}
int phy_reset(struct phy_device *phydev)
@@ -689,38 +714,41 @@ int miiphy_reset(const char *devname, unsigned char addr)
return phy_reset(phydev);
}
-struct phy_device *phy_connect(struct mii_dev *bus, int addr,
- struct eth_device *dev,
- phy_interface_t interface)
+struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask,
+ phy_interface_t interface)
{
- struct phy_device *phydev;
-
/* Reset the bus */
if (bus->reset)
bus->reset(bus);
/* Wait 15ms to make sure the PHY has come out of hard reset */
udelay(15000);
+ return get_phy_device_by_mask(bus, phy_mask, interface);
+}
- phydev = get_phy_device(bus, addr, interface);
-
- if (!phydev) {
- printf("Could not get PHY for %s:%d\n", bus->name, addr);
-
- return NULL;
- }
-
+void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev)
+{
/* Soft Reset the PHY */
phy_reset(phydev);
-
- if (phydev->dev)
+ if (phydev->dev) {
printf("%s:%d is connected to %s. Reconnecting to %s\n",
- bus->name, addr, phydev->dev->name, dev->name);
-
+ phydev->bus->name, phydev->addr,
+ phydev->dev->name, dev->name);
+ }
phydev->dev = dev;
-
debug("%s connected to %s\n", dev->name, phydev->drv->name);
+}
+
+struct phy_device *phy_connect(struct mii_dev *bus, int addr,
+ struct eth_device *dev, phy_interface_t interface)
+{
+ struct phy_device *phydev;
+ phydev = phy_find_by_mask(bus, 1 << addr, interface);
+ if (phydev)
+ phy_connect_dev(phydev, dev);
+ else
+ printf("Could not get PHY for %s: addr %d\n", bus->name, addr);
return phydev;
}