#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/timer.h>
-#include <linux/version.h>
#include <linux/bug.h>
#include <linux/bitops.h>
#include <linux/irq.h>
#include <linux/io.h>
+#include <linux/swab.h>
#include <linux/phy.h>
#include <linux/smsc911x.h>
+#include <linux/device.h>
#include "smsc911x.h"
#define SMSC_CHIPNAME "smsc911x"
unsigned int generation;
/* device configuration (copied from platform_data during probe) */
- unsigned int irq_polarity;
- unsigned int irq_type;
- phy_interface_t phy_interface;
+ struct smsc911x_platform_config config;
/* This needs to be acquired before calling any of below:
* smsc911x_mac_read(), smsc911x_mac_write()
*/
spinlock_t mac_lock;
-#if (!SMSC_CAN_USE_32BIT)
- /* spinlock to ensure 16-bit accesses are serialised */
+ /* spinlock to ensure 16-bit accesses are serialised.
+ * unused with a 32-bit bus */
spinlock_t dev_lock;
-#endif
struct phy_device *phy_dev;
struct mii_bus *mii_bus;
unsigned int hashlo;
};
-#if SMSC_CAN_USE_32BIT
-
-static inline u32 smsc911x_reg_read(struct smsc911x_data *pdata, u32 reg)
-{
- return readl(pdata->ioaddr + reg);
-}
-
-static inline void smsc911x_reg_write(struct smsc911x_data *pdata, u32 reg,
- u32 val)
-{
- writel(val, pdata->ioaddr + reg);
-}
-
-/* Writes a packet to the TX_DATA_FIFO */
-static inline void
-smsc911x_tx_writefifo(struct smsc911x_data *pdata, unsigned int *buf,
- unsigned int wordcount)
-{
- writesl(pdata->ioaddr + TX_DATA_FIFO, buf, wordcount);
-}
-
-/* Reads a packet out of the RX_DATA_FIFO */
-static inline void
-smsc911x_rx_readfifo(struct smsc911x_data *pdata, unsigned int *buf,
- unsigned int wordcount)
-{
- readsl(pdata->ioaddr + RX_DATA_FIFO, buf, wordcount);
-}
-
-#else /* SMSC_CAN_USE_32BIT */
-
-/* These 16-bit access functions are significantly slower, due to the locking
+/* The 16-bit access functions are significantly slower, due to the locking
* necessary. If your bus hardware can be configured to do this for you
* (in response to a single 32-bit operation from software), you should use
* the 32-bit access functions instead. */
static inline u32 smsc911x_reg_read(struct smsc911x_data *pdata, u32 reg)
{
- unsigned long flags;
- u32 data;
-
- /* these two 16-bit reads must be performed consecutively, so must
- * not be interrupted by our own ISR (which would start another
- * read operation) */
- spin_lock_irqsave(&pdata->dev_lock, flags);
- data = ((readw(pdata->ioaddr + reg) & 0xFFFF) |
- ((readw(pdata->ioaddr + reg + 2) & 0xFFFF) << 16));
- spin_unlock_irqrestore(&pdata->dev_lock, flags);
+ if (pdata->config.flags & SMSC911X_USE_32BIT)
+ return readl(pdata->ioaddr + reg);
+
+ if (pdata->config.flags & SMSC911X_USE_16BIT) {
+ u32 data;
+ unsigned long flags;
+
+ /* these two 16-bit reads must be performed consecutively, so
+ * must not be interrupted by our own ISR (which would start
+ * another read operation) */
+ spin_lock_irqsave(&pdata->dev_lock, flags);
+ data = ((readw(pdata->ioaddr + reg) & 0xFFFF) |
+ ((readw(pdata->ioaddr + reg + 2) & 0xFFFF) << 16));
+ spin_unlock_irqrestore(&pdata->dev_lock, flags);
+
+ return data;
+ }
- return data;
+ BUG();
+ return 0;
}
static inline void smsc911x_reg_write(struct smsc911x_data *pdata, u32 reg,
u32 val)
{
- unsigned long flags;
+ if (pdata->config.flags & SMSC911X_USE_32BIT) {
+ writel(val, pdata->ioaddr + reg);
+ return;
+ }
+
+ if (pdata->config.flags & SMSC911X_USE_16BIT) {
+ unsigned long flags;
- /* these two 16-bit writes must be performed consecutively, so must
- * not be interrupted by our own ISR (which would start another
- * read operation) */
- spin_lock_irqsave(&pdata->dev_lock, flags);
- writew(val & 0xFFFF, pdata->ioaddr + reg);
- writew((val >> 16) & 0xFFFF, pdata->ioaddr + reg + 2);
- spin_unlock_irqrestore(&pdata->dev_lock, flags);
+ /* these two 16-bit writes must be performed consecutively, so
+ * must not be interrupted by our own ISR (which would start
+ * another read operation) */
+ spin_lock_irqsave(&pdata->dev_lock, flags);
+ writew(val & 0xFFFF, pdata->ioaddr + reg);
+ writew((val >> 16) & 0xFFFF, pdata->ioaddr + reg + 2);
+ spin_unlock_irqrestore(&pdata->dev_lock, flags);
+ return;
+ }
+
+ BUG();
}
/* Writes a packet to the TX_DATA_FIFO */
smsc911x_tx_writefifo(struct smsc911x_data *pdata, unsigned int *buf,
unsigned int wordcount)
{
- while (wordcount--)
- smsc911x_reg_write(pdata, TX_DATA_FIFO, *buf++);
+ if (pdata->config.flags & SMSC911X_SWAP_FIFO) {
+ while (wordcount--)
+ smsc911x_reg_write(pdata, TX_DATA_FIFO, swab32(*buf++));
+ return;
+ }
+
+ if (pdata->config.flags & SMSC911X_USE_32BIT) {
+ writesl(pdata->ioaddr + TX_DATA_FIFO, buf, wordcount);
+ return;
+ }
+
+ if (pdata->config.flags & SMSC911X_USE_16BIT) {
+ while (wordcount--)
+ smsc911x_reg_write(pdata, TX_DATA_FIFO, *buf++);
+ return;
+ }
+
+ BUG();
}
/* Reads a packet out of the RX_DATA_FIFO */
smsc911x_rx_readfifo(struct smsc911x_data *pdata, unsigned int *buf,
unsigned int wordcount)
{
- while (wordcount--)
- *buf++ = smsc911x_reg_read(pdata, RX_DATA_FIFO);
-}
+ if (pdata->config.flags & SMSC911X_SWAP_FIFO) {
+ while (wordcount--)
+ *buf++ = swab32(smsc911x_reg_read(pdata, RX_DATA_FIFO));
+ return;
+ }
-#endif /* SMSC_CAN_USE_32BIT */
+ if (pdata->config.flags & SMSC911X_USE_32BIT) {
+ readsl(pdata->ioaddr + RX_DATA_FIFO, buf, wordcount);
+ return;
+ }
+
+ if (pdata->config.flags & SMSC911X_USE_16BIT) {
+ while (wordcount--)
+ *buf++ = smsc911x_reg_read(pdata, RX_DATA_FIFO);
+ return;
+ }
+
+ BUG();
+}
/* waits for MAC not busy, with timeout. Only called by smsc911x_mac_read
* and smsc911x_mac_write, so assumes mac_lock is held */
goto out;
}
- SMSC_WARNING(HW, "Timed out waiting for MII write to finish");
+ SMSC_WARNING(HW, "Timed out waiting for MII read to finish");
reg = -EIO;
out:
return reg;
}
-/* Autodetects and initialises external phy for SMSC9115 and SMSC9117 flavors.
- * If something goes wrong, returns -ENODEV to revert back to internal phy.
- * Performed at initialisation only, so interrupts are enabled */
-static int smsc911x_phy_initialise_external(struct smsc911x_data *pdata)
+/* Switch to external phy. Assumes tx and rx are stopped. */
+static void smsc911x_phy_enable_external(struct smsc911x_data *pdata)
{
unsigned int hwcfg = smsc911x_reg_read(pdata, HW_CFG);
- /* External phy is requested, supported, and detected */
- if (hwcfg & HW_CFG_EXT_PHY_DET_) {
+ /* Disable phy clocks to the MAC */
+ hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+ hwcfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
+ smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+ udelay(10); /* Enough time for clocks to stop */
- /* Switch to external phy. Assuming tx and rx are stopped
- * because smsc911x_phy_initialise is called before
- * smsc911x_rx_initialise and tx_initialise. */
+ /* Switch to external phy */
+ hwcfg |= HW_CFG_EXT_PHY_EN_;
+ smsc911x_reg_write(pdata, HW_CFG, hwcfg);
- /* Disable phy clocks to the MAC */
- hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
- hwcfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
- smsc911x_reg_write(pdata, HW_CFG, hwcfg);
- udelay(10); /* Enough time for clocks to stop */
+ /* Enable phy clocks to the MAC */
+ hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+ hwcfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
+ smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+ udelay(10); /* Enough time for clocks to restart */
- /* Switch to external phy */
- hwcfg |= HW_CFG_EXT_PHY_EN_;
- smsc911x_reg_write(pdata, HW_CFG, hwcfg);
-
- /* Enable phy clocks to the MAC */
- hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
- hwcfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
- smsc911x_reg_write(pdata, HW_CFG, hwcfg);
- udelay(10); /* Enough time for clocks to restart */
+ hwcfg |= HW_CFG_SMI_SEL_;
+ smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+}
- hwcfg |= HW_CFG_SMI_SEL_;
- smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+/* Autodetects and enables external phy if present on supported chips.
+ * autodetection can be overridden by specifying SMSC911X_FORCE_INTERNAL_PHY
+ * or SMSC911X_FORCE_EXTERNAL_PHY in the platform_data flags. */
+static void smsc911x_phy_initialise_external(struct smsc911x_data *pdata)
+{
+ unsigned int hwcfg = smsc911x_reg_read(pdata, HW_CFG);
- SMSC_TRACE(HW, "Successfully switched to external PHY");
+ if (pdata->config.flags & SMSC911X_FORCE_INTERNAL_PHY) {
+ SMSC_TRACE(HW, "Forcing internal PHY");
+ pdata->using_extphy = 0;
+ } else if (pdata->config.flags & SMSC911X_FORCE_EXTERNAL_PHY) {
+ SMSC_TRACE(HW, "Forcing external PHY");
+ smsc911x_phy_enable_external(pdata);
+ pdata->using_extphy = 1;
+ } else if (hwcfg & HW_CFG_EXT_PHY_DET_) {
+ SMSC_TRACE(HW, "HW_CFG EXT_PHY_DET set, using external PHY");
+ smsc911x_phy_enable_external(pdata);
pdata->using_extphy = 1;
} else {
- SMSC_WARNING(HW, "No external PHY detected, "
- "Using internal PHY instead.");
- /* Use internal phy */
- return -ENODEV;
+ SMSC_TRACE(HW, "HW_CFG EXT_PHY_DET clear, using internal PHY");
+ pdata->using_extphy = 0;
}
- return 0;
}
/* Fetches a tx status out of the status fifo */
}
#endif /* USE_PHY_WORK_AROUND */
-static u8 smsc95xx_resolve_flowctrl_fulldplx(u16 lcladv, u16 rmtadv)
-{
- u8 cap = 0;
-
- if (lcladv & ADVERTISE_PAUSE_CAP) {
- if (lcladv & ADVERTISE_PAUSE_ASYM) {
- if (rmtadv & LPA_PAUSE_CAP)
- cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
- else if (rmtadv & LPA_PAUSE_ASYM)
- cap = FLOW_CTRL_RX;
- } else {
- if (rmtadv & LPA_PAUSE_CAP)
- cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
- }
- } else if (lcladv & ADVERTISE_PAUSE_ASYM) {
- if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM))
- cap = FLOW_CTRL_TX;
- }
-
- return cap;
-}
-
static void smsc911x_phy_update_flowcontrol(struct smsc911x_data *pdata)
{
struct phy_device *phy_dev = pdata->phy_dev;
if (phy_dev->duplex == DUPLEX_FULL) {
u16 lcladv = phy_read(phy_dev, MII_ADVERTISE);
u16 rmtadv = phy_read(phy_dev, MII_LPA);
- u8 cap = smsc95xx_resolve_flowctrl_fulldplx(lcladv, rmtadv);
+ u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
if (cap & FLOW_CTRL_RX)
flow = 0xFFFF0002;
* usage is 10/100 indicator */
pdata->gpio_setting = smsc911x_reg_read(pdata,
GPIO_CFG);
- if ((pdata->gpio_setting & GPIO_CFG_LED1_EN_)
- && (!pdata->using_extphy)) {
+ if ((pdata->gpio_setting & GPIO_CFG_LED1_EN_) &&
+ (!pdata->using_extphy)) {
/* Force 10/100 LED off, after saving
* orginal GPIO configuration */
pdata->gpio_orig_setting = pdata->gpio_setting;
return -ENODEV;
}
- phydev = phy_connect(dev, phydev->dev.bus_id,
- &smsc911x_phy_adjust_link, 0, pdata->phy_interface);
+ phydev = phy_connect(dev, dev_name(&phydev->dev),
+ &smsc911x_phy_adjust_link, 0, pdata->config.phy_interface);
if (IS_ERR(phydev)) {
pr_err("%s: Could not attach to PHY\n", dev->name);
}
pr_info("%s: attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n",
- dev->name, phydev->drv->name, phydev->dev.bus_id, phydev->irq);
+ dev->name, phydev->drv->name,
+ dev_name(&phydev->dev), phydev->irq);
/* mask with MAC supported features */
phydev->supported &= (PHY_BASIC_FEATURES | SUPPORTED_Pause |
pdata->mii_bus->irq[i] = PHY_POLL;
pdata->mii_bus->parent = &pdev->dev;
- dev_set_drvdata(&pdev->dev, &pdata->mii_bus);
-
- pdata->using_extphy = 0;
switch (pdata->idrev & 0xFFFF0000) {
case 0x01170000:
case 0x117A0000:
case 0x115A0000:
/* External PHY supported, try to autodetect */
- if (smsc911x_phy_initialise_external(pdata) < 0) {
- SMSC_TRACE(HW, "No external PHY detected, "
- "using internal PHY");
- }
+ smsc911x_phy_initialise_external(pdata);
break;
default:
SMSC_TRACE(HW, "External PHY is not supported, "
"using internal PHY");
+ pdata->using_extphy = 0;
break;
}
SMSC_WARNING(HW,
"Packet tag reserved bit is high");
} else {
- if (unlikely(tx_stat & 0x00008000)) {
+ if (unlikely(tx_stat & TX_STS_ES_)) {
dev->stats.tx_errors++;
} else {
dev->stats.tx_packets++;
dev->stats.tx_bytes += (tx_stat >> 16);
}
- if (unlikely(tx_stat & 0x00000100)) {
+ if (unlikely(tx_stat & TX_STS_EXCESS_COL_)) {
dev->stats.collisions += 16;
dev->stats.tx_aborted_errors += 1;
} else {
dev->stats.collisions +=
((tx_stat >> 3) & 0xF);
}
- if (unlikely(tx_stat & 0x00000800))
+ if (unlikely(tx_stat & TX_STS_LOST_CARRIER_))
dev->stats.tx_carrier_errors += 1;
- if (unlikely(tx_stat & 0x00000200)) {
+ if (unlikely(tx_stat & TX_STS_LATE_COL_)) {
dev->stats.collisions++;
dev->stats.tx_aborted_errors++;
}
{
int crc_err = 0;
- if (unlikely(rxstat & 0x00008000)) {
+ if (unlikely(rxstat & RX_STS_ES_)) {
dev->stats.rx_errors++;
- if (unlikely(rxstat & 0x00000002)) {
+ if (unlikely(rxstat & RX_STS_CRC_ERR_)) {
dev->stats.rx_crc_errors++;
crc_err = 1;
}
}
if (likely(!crc_err)) {
- if (unlikely((rxstat & 0x00001020) == 0x00001020)) {
- /* Frame type indicates length,
- * and length error is set */
+ if (unlikely((rxstat & RX_STS_FRAME_TYPE_) &&
+ (rxstat & RX_STS_LENGTH_ERR_)))
dev->stats.rx_length_errors++;
- }
if (rxstat & RX_STS_MCAST_)
dev->stats.multicast++;
}
do {
udelay(1);
val = smsc911x_reg_read(pdata, RX_DP_CTRL);
- } while (timeout-- && (val & RX_DP_CTRL_RX_FFWD_));
+ } while ((val & RX_DP_CTRL_RX_FFWD_) && --timeout);
if (unlikely(timeout == 0))
SMSC_WARNING(HW, "Timed out waiting for "
struct net_device *dev = pdata->dev;
int npackets = 0;
- while (likely(netif_running(dev)) && (npackets < budget)) {
+ while (npackets < budget) {
unsigned int pktlength;
unsigned int pktwords;
struct sk_buff *skb;
/* We processed all packets available. Tell NAPI it can
* stop polling then re-enable rx interrupts */
smsc911x_reg_write(pdata, INT_STS, INT_STS_RSFL_);
- netif_rx_complete(dev, napi);
+ napi_complete(napi);
temp = smsc911x_reg_read(pdata, INT_EN);
temp |= INT_EN_RSFL_EN_;
smsc911x_reg_write(pdata, INT_EN, temp);
/* Update counters */
dev->stats.rx_packets++;
dev->stats.rx_bytes += (pktlength - 4);
- dev->last_rx = jiffies;
}
/* Return total received packets */
/* Sets the device MAC address to dev_addr, called with mac_lock held */
static void
-smsc911x_set_mac_address(struct smsc911x_data *pdata, u8 dev_addr[6])
+smsc911x_set_hw_mac_address(struct smsc911x_data *pdata, u8 dev_addr[6])
{
u32 mac_high16 = (dev_addr[5] << 8) | dev_addr[4];
u32 mac_low32 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
/* Make sure EEPROM has finished loading before setting GPIO_CFG */
timeout = 50;
- while ((timeout--) &&
- (smsc911x_reg_read(pdata, E2P_CMD) & E2P_CMD_EPC_BUSY_)) {
+ while ((smsc911x_reg_read(pdata, E2P_CMD) & E2P_CMD_EPC_BUSY_) &&
+ --timeout) {
udelay(10);
}
/* The soft reset above cleared the device's MAC address,
* restore it from local copy (set in probe) */
spin_lock_irq(&pdata->mac_lock);
- smsc911x_set_mac_address(pdata, dev->dev_addr);
+ smsc911x_set_hw_mac_address(pdata, dev->dev_addr);
spin_unlock_irq(&pdata->mac_lock);
/* Initialise irqs, but leave all sources disabled */
/* Set interrupt deassertion to 100uS */
intcfg = ((10 << 24) | INT_CFG_IRQ_EN_);
- if (pdata->irq_polarity) {
+ if (pdata->config.irq_polarity) {
SMSC_TRACE(IFUP, "irq polarity: active high");
intcfg |= INT_CFG_IRQ_POL_;
} else {
SMSC_TRACE(IFUP, "irq polarity: active low");
}
- if (pdata->irq_type) {
+ if (pdata->config.irq_type) {
SMSC_TRACE(IFUP, "irq type: push-pull");
intcfg |= INT_CFG_IRQ_TYPE_;
} else {
dev_info(&dev->dev, "SMSC911x/921x identified at %#08lx, IRQ: %d\n",
(unsigned long)pdata->ioaddr, dev->irq);
+ /* Reset the last known duplex and carrier */
+ pdata->last_duplex = -1;
+ pdata->last_carrier = -1;
+
/* Bring the PHY up */
phy_start(pdata->phy_dev);
napi_enable(&pdata->napi);
temp = smsc911x_reg_read(pdata, INT_EN);
- temp |= (INT_EN_TDFA_EN_ | INT_EN_RSFL_EN_);
+ temp |= (INT_EN_TDFA_EN_ | INT_EN_RSFL_EN_ | INT_EN_RXSTOP_INT_EN_);
smsc911x_reg_write(pdata, INT_EN, temp);
spin_lock_irq(&pdata->mac_lock);
struct smsc911x_data *pdata = netdev_priv(dev);
unsigned int temp;
- BUG_ON(!pdata->phy_dev);
-
/* Disable all device interrupts */
temp = smsc911x_reg_read(pdata, INT_CFG);
temp &= ~INT_CFG_IRQ_EN_;
smsc911x_tx_update_txcounters(dev);
/* Bring the PHY down */
- phy_stop(pdata->phy_dev);
+ if (pdata->phy_dev)
+ phy_stop(pdata->phy_dev);
SMSC_TRACE(IFDOWN, "Interface stopped");
return 0;
/* Request the hardware to stop, then perform the
* update when we get an RX_STOP interrupt */
- smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
- temp = smsc911x_reg_read(pdata, INT_EN);
- temp |= INT_EN_RXSTOP_INT_EN_;
- smsc911x_reg_write(pdata, INT_EN, temp);
-
temp = smsc911x_mac_read(pdata, MAC_CR);
temp &= ~(MAC_CR_RXEN_);
smsc911x_mac_write(pdata, MAC_CR, temp);
/* Called when there is a multicast update scheduled and
* it is now safe to complete the update */
SMSC_TRACE(INTR, "RX Stop interrupt");
- temp = smsc911x_reg_read(pdata, INT_EN);
- temp &= (~INT_EN_RXSTOP_INT_EN_);
- smsc911x_reg_write(pdata, INT_EN, temp);
smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
- smsc911x_rx_multicast_update_workaround(pdata);
+ if (pdata->multicast_update_pending)
+ smsc911x_rx_multicast_update_workaround(pdata);
serviced = IRQ_HANDLED;
}
}
if (likely(intsts & inten & INT_STS_RSFL_)) {
- if (likely(netif_rx_schedule_prep(dev, &pdata->napi))) {
+ if (likely(napi_schedule_prep(&pdata->napi))) {
/* Disable Rx interrupts */
temp = smsc911x_reg_read(pdata, INT_EN);
temp &= (~INT_EN_RSFL_EN_);
smsc911x_reg_write(pdata, INT_EN, temp);
/* Schedule a NAPI poll */
- __netif_rx_schedule(dev, &pdata->napi);
+ __napi_schedule(&pdata->napi);
} else {
SMSC_WARNING(RX_ERR,
- "netif_rx_schedule_prep failed");
+ "napi_schedule_prep failed");
}
serviced = IRQ_HANDLED;
}
}
#ifdef CONFIG_NET_POLL_CONTROLLER
-void smsc911x_poll_controller(struct net_device *dev)
+static void smsc911x_poll_controller(struct net_device *dev)
{
disable_irq(dev->irq);
smsc911x_irqhandler(0, dev);
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
+static int smsc911x_set_mac_address(struct net_device *dev, void *p)
+{
+ struct smsc911x_data *pdata = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ /* On older hardware revisions we cannot change the mac address
+ * registers while receiving data. Newer devices can safely change
+ * this at any time. */
+ if (pdata->generation <= 1 && netif_running(dev))
+ return -EBUSY;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+
+ spin_lock_irq(&pdata->mac_lock);
+ smsc911x_set_hw_mac_address(pdata, dev->dev_addr);
+ spin_unlock_irq(&pdata->mac_lock);
+
+ dev_info(&dev->dev, "MAC Address: %pM\n", dev->dev_addr);
+
+ return 0;
+}
+
/* Standard ioctls for mii-tool */
static int smsc911x_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
{
strlcpy(info->driver, SMSC_CHIPNAME, sizeof(info->driver));
strlcpy(info->version, SMSC_DRV_VERSION, sizeof(info->version));
- strlcpy(info->bus_info, dev->dev.parent->bus_id,
+ strlcpy(info->bus_info, dev_name(dev->dev.parent),
sizeof(info->bus_info));
}
do {
msleep(1);
e2cmd = smsc911x_reg_read(pdata, E2P_CMD);
- } while ((e2cmd & E2P_CMD_EPC_BUSY_) && (timeout--));
+ } while ((e2cmd & E2P_CMD_EPC_BUSY_) && (--timeout));
if (!timeout) {
SMSC_TRACE(DRV, "TIMED OUT");
u8 address, u8 data)
{
u32 op = E2P_CMD_EPC_CMD_ERASE_ | address;
+ u32 temp;
int ret;
SMSC_TRACE(DRV, "address 0x%x, data 0x%x", address, data);
if (!ret) {
op = E2P_CMD_EPC_CMD_WRITE_ | address;
smsc911x_reg_write(pdata, E2P_DATA, (u32)data);
+
+ /* Workaround for hardware read-after-write restriction */
+ temp = smsc911x_reg_read(pdata, BYTE_TEST);
+
ret = smsc911x_eeprom_send_cmd(pdata, op);
}
return ret;
}
-static struct ethtool_ops smsc911x_ethtool_ops = {
+static const struct ethtool_ops smsc911x_ethtool_ops = {
.get_settings = smsc911x_ethtool_getsettings,
.set_settings = smsc911x_ethtool_setsettings,
.get_link = ethtool_op_get_link,
.set_eeprom = smsc911x_ethtool_set_eeprom,
};
+static const struct net_device_ops smsc911x_netdev_ops = {
+ .ndo_open = smsc911x_open,
+ .ndo_stop = smsc911x_stop,
+ .ndo_start_xmit = smsc911x_hard_start_xmit,
+ .ndo_get_stats = smsc911x_get_stats,
+ .ndo_set_multicast_list = smsc911x_set_multicast_list,
+ .ndo_do_ioctl = smsc911x_do_ioctl,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = smsc911x_set_mac_address,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = smsc911x_poll_controller,
+#endif
+};
+
+/* copies the current mac address from hardware to dev->dev_addr */
+static void __devinit smsc911x_read_mac_address(struct net_device *dev)
+{
+ struct smsc911x_data *pdata = netdev_priv(dev);
+ u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH);
+ u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL);
+
+ dev->dev_addr[0] = (u8)(mac_low32);
+ dev->dev_addr[1] = (u8)(mac_low32 >> 8);
+ dev->dev_addr[2] = (u8)(mac_low32 >> 16);
+ dev->dev_addr[3] = (u8)(mac_low32 >> 24);
+ dev->dev_addr[4] = (u8)(mac_high16);
+ dev->dev_addr[5] = (u8)(mac_high16 >> 8);
+}
+
/* Initializing private device structures, only called from probe */
static int __devinit smsc911x_init(struct net_device *dev)
{
SMSC_TRACE(PROBE, "IRQ: %d", dev->irq);
SMSC_TRACE(PROBE, "PHY will be autodetected.");
-#if (!SMSC_CAN_USE_32BIT)
spin_lock_init(&pdata->dev_lock);
-#endif
if (pdata->ioaddr == 0) {
SMSC_WARNING(PROBE, "pdata->ioaddr: 0x00000000");
SMSC_WARNING(PROBE,
"This driver is not intended for this chip revision");
+ /* workaround for platforms without an eeprom, where the mac address
+ * is stored elsewhere and set by the bootloader. This saves the
+ * mac address before resetting the device */
+ if (pdata->config.flags & SMSC911X_SAVE_MAC_ADDRESS)
+ smsc911x_read_mac_address(dev);
+
/* Reset the LAN911x */
if (smsc911x_soft_reset(pdata))
return -ENODEV;
smsc911x_reg_write(pdata, INT_EN, 0);
ether_setup(dev);
- dev->open = smsc911x_open;
- dev->stop = smsc911x_stop;
- dev->hard_start_xmit = smsc911x_hard_start_xmit;
- dev->get_stats = smsc911x_get_stats;
- dev->set_multicast_list = smsc911x_set_multicast_list;
dev->flags |= IFF_MULTICAST;
- dev->do_ioctl = smsc911x_do_ioctl;
netif_napi_add(dev, &pdata->napi, smsc911x_poll, SMSC_NAPI_WEIGHT);
+ dev->netdev_ops = &smsc911x_netdev_ops;
dev->ethtool_ops = &smsc911x_ethtool_ops;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- dev->poll_controller = smsc911x_poll_controller;
-#endif /* CONFIG_NET_POLL_CONTROLLER */
-
return 0;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"smsc911x-memory");
if (!res)
- platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, res->end - res->start);
+ release_mem_region(res->start, resource_size(res));
iounmap(pdata->ioaddr);
{
struct net_device *dev;
struct smsc911x_data *pdata;
- struct resource *res;
+ struct smsc911x_platform_config *config = pdev->dev.platform_data;
+ struct resource *res, *irq_res;
unsigned int intcfg = 0;
- int res_size;
+ int res_size, irq_flags;
int retval;
- DECLARE_MAC_BUF(mac);
pr_info("%s: Driver version %s.\n", SMSC_CHIPNAME, SMSC_DRV_VERSION);
+ /* platform data specifies irq & dynamic bus configuration */
+ if (!pdev->dev.platform_data) {
+ pr_warning("%s: platform_data not provided\n", SMSC_CHIPNAME);
+ retval = -ENODEV;
+ goto out_0;
+ }
+
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"smsc911x-memory");
if (!res)
retval = -ENODEV;
goto out_0;
}
- res_size = res->end - res->start;
+ res_size = resource_size(res);
+
+ irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!irq_res) {
+ pr_warning("%s: Could not allocate irq resource.\n",
+ SMSC_CHIPNAME);
+ retval = -ENODEV;
+ goto out_0;
+ }
if (!request_mem_region(res->start, res_size, SMSC_CHIPNAME)) {
retval = -EBUSY;
pdata = netdev_priv(dev);
- dev->irq = platform_get_irq(pdev, 0);
+ dev->irq = irq_res->start;
+ irq_flags = irq_res->flags & IRQF_TRIGGER_MASK;
pdata->ioaddr = ioremap_nocache(res->start, res_size);
- /* copy config parameters across if present, otherwise pdata
- * defaults to zeros */
- if (pdev->dev.platform_data) {
- struct smsc911x_platform_config *config =
- pdev->dev.platform_data;
- pdata->irq_polarity = config->irq_polarity;
- pdata->irq_type = config->irq_type;
- pdata->phy_interface = config->phy_interface;
- }
+ /* copy config parameters across to pdata */
+ memcpy(&pdata->config, config, sizeof(pdata->config));
pdata->dev = dev;
pdata->msg_enable = ((1 << debug) - 1);
goto out_unmap_io_3;
/* configure irq polarity and type before connecting isr */
- if (pdata->irq_polarity == SMSC911X_IRQ_POLARITY_ACTIVE_HIGH)
+ if (pdata->config.irq_polarity == SMSC911X_IRQ_POLARITY_ACTIVE_HIGH)
intcfg |= INT_CFG_IRQ_POL_;
- if (pdata->irq_type == SMSC911X_IRQ_TYPE_PUSH_PULL)
+ if (pdata->config.irq_type == SMSC911X_IRQ_TYPE_PUSH_PULL)
intcfg |= INT_CFG_IRQ_TYPE_;
smsc911x_reg_write(pdata, INT_CFG, intcfg);
smsc911x_reg_write(pdata, INT_EN, 0);
smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF);
- retval = request_irq(dev->irq, smsc911x_irqhandler, IRQF_DISABLED,
- SMSC_CHIPNAME, dev);
+ retval = request_irq(dev->irq, smsc911x_irqhandler,
+ irq_flags | IRQF_SHARED, dev->name, dev);
if (retval) {
SMSC_WARNING(PROBE,
"Unable to claim requested irq: %d", dev->irq);
/* Check if mac address has been specified when bringing interface up */
if (is_valid_ether_addr(dev->dev_addr)) {
- smsc911x_set_mac_address(pdata, dev->dev_addr);
+ smsc911x_set_hw_mac_address(pdata, dev->dev_addr);
SMSC_TRACE(PROBE, "MAC Address is specified by configuration");
+ } else if (is_valid_ether_addr(pdata->config.mac)) {
+ memcpy(dev->dev_addr, pdata->config.mac, 6);
+ SMSC_TRACE(PROBE, "MAC Address specified by platform data");
} else {
/* Try reading mac address from device. if EEPROM is present
* it will already have been set */
- u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH);
- u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL);
- dev->dev_addr[0] = (u8)(mac_low32);
- dev->dev_addr[1] = (u8)(mac_low32 >> 8);
- dev->dev_addr[2] = (u8)(mac_low32 >> 16);
- dev->dev_addr[3] = (u8)(mac_low32 >> 24);
- dev->dev_addr[4] = (u8)(mac_high16);
- dev->dev_addr[5] = (u8)(mac_high16 >> 8);
+ smsc911x_read_mac_address(dev);
if (is_valid_ether_addr(dev->dev_addr)) {
/* eeprom values are valid so use them */
} else {
/* eeprom values are invalid, generate random MAC */
random_ether_addr(dev->dev_addr);
- smsc911x_set_mac_address(pdata, dev->dev_addr);
+ smsc911x_set_hw_mac_address(pdata, dev->dev_addr);
SMSC_TRACE(PROBE,
"MAC Address is set to random_ether_addr");
}
spin_unlock_irq(&pdata->mac_lock);
- dev_info(&dev->dev, "MAC Address: %s\n",
- print_mac(mac, dev->dev_addr));
+ dev_info(&dev->dev, "MAC Address: %pM\n", dev->dev_addr);
return 0;
out_free_netdev_2:
free_netdev(dev);
out_release_io_1:
- release_mem_region(res->start, res->end - res->start);
+ release_mem_region(res->start, resource_size(res));
out_0:
return retval;
}
+#ifdef CONFIG_PM
+/* This implementation assumes the devices remains powered on its VDDVARIO
+ * pins during suspend. */
+
+/* TODO: implement freeze/thaw callbacks for hibernation.*/
+
+static int smsc911x_suspend(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct smsc911x_data *pdata = netdev_priv(ndev);
+
+ /* enable wake on LAN, energy detection and the external PME
+ * signal. */
+ smsc911x_reg_write(pdata, PMT_CTRL,
+ PMT_CTRL_PM_MODE_D1_ | PMT_CTRL_WOL_EN_ |
+ PMT_CTRL_ED_EN_ | PMT_CTRL_PME_EN_);
+
+ return 0;
+}
+
+static int smsc911x_resume(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct smsc911x_data *pdata = netdev_priv(ndev);
+ unsigned int to = 100;
+
+ /* Note 3.11 from the datasheet:
+ * "When the LAN9220 is in a power saving state, a write of any
+ * data to the BYTE_TEST register will wake-up the device."
+ */
+ smsc911x_reg_write(pdata, BYTE_TEST, 0);
+
+ /* poll the READY bit in PMT_CTRL. Any other access to the device is
+ * forbidden while this bit isn't set. Try for 100ms and return -EIO
+ * if it failed. */
+ while (!(smsc911x_reg_read(pdata, PMT_CTRL) & PMT_CTRL_READY_) && --to)
+ udelay(1000);
+
+ return (to == 0) ? -EIO : 0;
+}
+
+static struct dev_pm_ops smsc911x_pm_ops = {
+ .suspend = smsc911x_suspend,
+ .resume = smsc911x_resume,
+};
+
+#define SMSC911X_PM_OPS (&smsc911x_pm_ops)
+
+#else
+#define SMSC911X_PM_OPS NULL
+#endif
+
static struct platform_driver smsc911x_driver = {
.probe = smsc911x_drv_probe,
- .remove = smsc911x_drv_remove,
+ .remove = __devexit_p(smsc911x_drv_remove),
.driver = {
- .name = SMSC_CHIPNAME,
+ .name = SMSC_CHIPNAME,
+ .owner = THIS_MODULE,
+ .pm = SMSC911X_PM_OPS,
},
};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff