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path: root/drivers/net/bfin_mac.c
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Diffstat (limited to 'drivers/net/bfin_mac.c')
-rw-r--r--drivers/net/bfin_mac.c145
1 files changed, 94 insertions, 51 deletions
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index f7233191162..ce1e5e9d06f 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -1,7 +1,7 @@
/*
* Blackfin On-Chip MAC Driver
*
- * Copyright 2004-2007 Analog Devices Inc.
+ * Copyright 2004-2010 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
*
@@ -23,7 +23,6 @@
#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/mii.h>
-#include <linux/phy.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
@@ -76,12 +75,6 @@ static struct net_dma_desc_tx *current_tx_ptr;
static struct net_dma_desc_tx *tx_desc;
static struct net_dma_desc_rx *rx_desc;
-#if defined(CONFIG_BFIN_MAC_RMII)
-static u16 pin_req[] = P_RMII0;
-#else
-static u16 pin_req[] = P_MII0;
-#endif
-
static void desc_list_free(void)
{
struct net_dma_desc_rx *r;
@@ -347,23 +340,23 @@ static void bfin_mac_adjust_link(struct net_device *dev)
}
if (phydev->speed != lp->old_speed) {
-#if defined(CONFIG_BFIN_MAC_RMII)
- u32 opmode = bfin_read_EMAC_OPMODE();
- switch (phydev->speed) {
- case 10:
- opmode |= RMII_10;
- break;
- case 100:
- opmode &= ~(RMII_10);
- break;
- default:
- printk(KERN_WARNING
- "%s: Ack! Speed (%d) is not 10/100!\n",
- DRV_NAME, phydev->speed);
- break;
+ if (phydev->interface == PHY_INTERFACE_MODE_RMII) {
+ u32 opmode = bfin_read_EMAC_OPMODE();
+ switch (phydev->speed) {
+ case 10:
+ opmode |= RMII_10;
+ break;
+ case 100:
+ opmode &= ~RMII_10;
+ break;
+ default:
+ printk(KERN_WARNING
+ "%s: Ack! Speed (%d) is not 10/100!\n",
+ DRV_NAME, phydev->speed);
+ break;
+ }
+ bfin_write_EMAC_OPMODE(opmode);
}
- bfin_write_EMAC_OPMODE(opmode);
-#endif
new_state = 1;
lp->old_speed = phydev->speed;
@@ -392,7 +385,7 @@ static void bfin_mac_adjust_link(struct net_device *dev)
/* MDC = 2.5 MHz */
#define MDC_CLK 2500000
-static int mii_probe(struct net_device *dev)
+static int mii_probe(struct net_device *dev, int phy_mode)
{
struct bfin_mac_local *lp = netdev_priv(dev);
struct phy_device *phydev = NULL;
@@ -411,8 +404,8 @@ static int mii_probe(struct net_device *dev)
sysctl = (sysctl & ~MDCDIV) | SET_MDCDIV(mdc_div);
bfin_write_EMAC_SYSCTL(sysctl);
- /* search for connect PHY device */
- for (i = 0; i < PHY_MAX_ADDR; i++) {
+ /* search for connected PHY device */
+ for (i = 0; i < PHY_MAX_ADDR; ++i) {
struct phy_device *const tmp_phydev = lp->mii_bus->phy_map[i];
if (!tmp_phydev)
@@ -429,13 +422,14 @@ static int mii_probe(struct net_device *dev)
return -ENODEV;
}
-#if defined(CONFIG_BFIN_MAC_RMII)
- phydev = phy_connect(dev, dev_name(&phydev->dev), &bfin_mac_adjust_link,
- 0, PHY_INTERFACE_MODE_RMII);
-#else
+ if (phy_mode != PHY_INTERFACE_MODE_RMII &&
+ phy_mode != PHY_INTERFACE_MODE_MII) {
+ printk(KERN_INFO "%s: Invalid phy interface mode\n", dev->name);
+ return -EINVAL;
+ }
+
phydev = phy_connect(dev, dev_name(&phydev->dev), &bfin_mac_adjust_link,
- 0, PHY_INTERFACE_MODE_MII);
-#endif
+ 0, phy_mode);
if (IS_ERR(phydev)) {
printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
@@ -570,6 +564,8 @@ static const struct ethtool_ops bfin_mac_ethtool_ops = {
/**************************************************************************/
void setup_system_regs(struct net_device *dev)
{
+ struct bfin_mac_local *lp = netdev_priv(dev);
+ int i;
unsigned short sysctl;
/*
@@ -577,6 +573,15 @@ void setup_system_regs(struct net_device *dev)
* Configure checksum support and rcve frame word alignment
*/
sysctl = bfin_read_EMAC_SYSCTL();
+ /*
+ * check if interrupt is requested for any PHY,
+ * enable PHY interrupt only if needed
+ */
+ for (i = 0; i < PHY_MAX_ADDR; ++i)
+ if (lp->mii_bus->irq[i] != PHY_POLL)
+ break;
+ if (i < PHY_MAX_ADDR)
+ sysctl |= PHYIE;
sysctl |= RXDWA;
#if defined(BFIN_MAC_CSUM_OFFLOAD)
sysctl |= RXCKS;
@@ -1203,7 +1208,7 @@ static void bfin_mac_disable(void)
/*
* Enable Interrupts, Receive, and Transmit
*/
-static int bfin_mac_enable(void)
+static int bfin_mac_enable(struct phy_device *phydev)
{
int ret;
u32 opmode;
@@ -1233,12 +1238,13 @@ static int bfin_mac_enable(void)
opmode |= DRO | DC | PSF;
opmode |= RE;
-#if defined(CONFIG_BFIN_MAC_RMII)
- opmode |= RMII; /* For Now only 100MBit are supported */
+ if (phydev->interface == PHY_INTERFACE_MODE_RMII) {
+ opmode |= RMII; /* For Now only 100MBit are supported */
#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) && CONFIG_BF_REV_0_2
- opmode |= TE;
-#endif
+ opmode |= TE;
#endif
+ }
+
/* Turn on the EMAC rx */
bfin_write_EMAC_OPMODE(opmode);
@@ -1270,7 +1276,7 @@ static void bfin_mac_timeout(struct net_device *dev)
if (netif_queue_stopped(lp->ndev))
netif_wake_queue(lp->ndev);
- bfin_mac_enable();
+ bfin_mac_enable(lp->phydev);
/* We can accept TX packets again */
dev->trans_start = jiffies; /* prevent tx timeout */
@@ -1342,11 +1348,19 @@ static void bfin_mac_set_multicast_list(struct net_device *dev)
static int bfin_mac_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
+ struct bfin_mac_local *lp = netdev_priv(netdev);
+
+ if (!netif_running(netdev))
+ return -EINVAL;
+
switch (cmd) {
case SIOCSHWTSTAMP:
return bfin_mac_hwtstamp_ioctl(netdev, ifr, cmd);
default:
- return -EOPNOTSUPP;
+ if (lp->phydev)
+ return phy_mii_ioctl(lp->phydev, ifr, cmd);
+ else
+ return -EOPNOTSUPP;
}
}
@@ -1394,7 +1408,7 @@ static int bfin_mac_open(struct net_device *dev)
setup_mac_addr(dev->dev_addr);
bfin_mac_disable();
- ret = bfin_mac_enable();
+ ret = bfin_mac_enable(lp->phydev);
if (ret)
return ret;
pr_debug("hardware init finished\n");
@@ -1450,6 +1464,7 @@ static int __devinit bfin_mac_probe(struct platform_device *pdev)
struct net_device *ndev;
struct bfin_mac_local *lp;
struct platform_device *pd;
+ struct bfin_mii_bus_platform_data *mii_bus_data;
int rc;
ndev = alloc_etherdev(sizeof(struct bfin_mac_local));
@@ -1501,11 +1516,12 @@ static int __devinit bfin_mac_probe(struct platform_device *pdev)
if (!lp->mii_bus) {
dev_err(&pdev->dev, "Cannot get mii_bus!\n");
rc = -ENODEV;
- goto out_err_mii_bus_probe;
+ goto out_err_probe_mac;
}
lp->mii_bus->priv = ndev;
+ mii_bus_data = pd->dev.platform_data;
- rc = mii_probe(ndev);
+ rc = mii_probe(ndev, mii_bus_data->phy_mode);
if (rc) {
dev_err(&pdev->dev, "MII Probe failed!\n");
goto out_err_mii_probe;
@@ -1552,8 +1568,6 @@ out_err_request_irq:
out_err_mii_probe:
mdiobus_unregister(lp->mii_bus);
mdiobus_free(lp->mii_bus);
-out_err_mii_bus_probe:
- peripheral_free_list(pin_req);
out_err_probe_mac:
platform_set_drvdata(pdev, NULL);
free_netdev(ndev);
@@ -1576,8 +1590,6 @@ static int __devexit bfin_mac_remove(struct platform_device *pdev)
free_netdev(ndev);
- peripheral_free_list(pin_req);
-
return 0;
}
@@ -1623,12 +1635,21 @@ static int bfin_mac_resume(struct platform_device *pdev)
static int __devinit bfin_mii_bus_probe(struct platform_device *pdev)
{
struct mii_bus *miibus;
+ struct bfin_mii_bus_platform_data *mii_bus_pd;
+ const unsigned short *pin_req;
int rc, i;
+ mii_bus_pd = dev_get_platdata(&pdev->dev);
+ if (!mii_bus_pd) {
+ dev_err(&pdev->dev, "No peripherals in platform data!\n");
+ return -EINVAL;
+ }
+
/*
* We are setting up a network card,
* so set the GPIO pins to Ethernet mode
*/
+ pin_req = mii_bus_pd->mac_peripherals;
rc = peripheral_request_list(pin_req, DRV_NAME);
if (rc) {
dev_err(&pdev->dev, "Requesting peripherals failed!\n");
@@ -1645,13 +1666,30 @@ static int __devinit bfin_mii_bus_probe(struct platform_device *pdev)
miibus->parent = &pdev->dev;
miibus->name = "bfin_mii_bus";
+ miibus->phy_mask = mii_bus_pd->phy_mask;
+
snprintf(miibus->id, MII_BUS_ID_SIZE, "0");
miibus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
- if (miibus->irq == NULL)
- goto out_err_alloc;
- for (i = 0; i < PHY_MAX_ADDR; ++i)
+ if (!miibus->irq)
+ goto out_err_irq_alloc;
+
+ for (i = rc; i < PHY_MAX_ADDR; ++i)
miibus->irq[i] = PHY_POLL;
+ rc = clamp(mii_bus_pd->phydev_number, 0, PHY_MAX_ADDR);
+ if (rc != mii_bus_pd->phydev_number)
+ dev_err(&pdev->dev, "Invalid number (%i) of phydevs\n",
+ mii_bus_pd->phydev_number);
+ for (i = 0; i < rc; ++i) {
+ unsigned short phyaddr = mii_bus_pd->phydev_data[i].addr;
+ if (phyaddr < PHY_MAX_ADDR)
+ miibus->irq[phyaddr] = mii_bus_pd->phydev_data[i].irq;
+ else
+ dev_err(&pdev->dev,
+ "Invalid PHY address %i for phydev %i\n",
+ phyaddr, i);
+ }
+
rc = mdiobus_register(miibus);
if (rc) {
dev_err(&pdev->dev, "Cannot register MDIO bus!\n");
@@ -1663,6 +1701,7 @@ static int __devinit bfin_mii_bus_probe(struct platform_device *pdev)
out_err_mdiobus_register:
kfree(miibus->irq);
+out_err_irq_alloc:
mdiobus_free(miibus);
out_err_alloc:
peripheral_free_list(pin_req);
@@ -1673,11 +1712,15 @@ out_err_alloc:
static int __devexit bfin_mii_bus_remove(struct platform_device *pdev)
{
struct mii_bus *miibus = platform_get_drvdata(pdev);
+ struct bfin_mii_bus_platform_data *mii_bus_pd =
+ dev_get_platdata(&pdev->dev);
+
platform_set_drvdata(pdev, NULL);
mdiobus_unregister(miibus);
kfree(miibus->irq);
mdiobus_free(miibus);
- peripheral_free_list(pin_req);
+ peripheral_free_list(mii_bus_pd->mac_peripherals);
+
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-18 09:08:15 +0000