* Copyright 2002 TimeSys Corp.
* Added ethtool/mii-tool support,
* Copyright 2004 Matt Porter <mporter@kernel.crashing.org>
- * Update: 2004 Bjoern Riemer, riemer@fokus.fraunhofer.de
- * or riemer@riemer-nt.de: fixed the link beat detection with
+ * Update: 2004 Bjoern Riemer, riemer@fokus.fraunhofer.de
+ * or riemer@riemer-nt.de: fixed the link beat detection with
* ioctls (SIOCGMIIPHY)
* Copyright 2006 Herbert Valerio Riedel <hvr@gnu.org>
* converted to use linux-2.6.x's PHY framework
*
* ########################################################################
*
- *
+ *
*/
-
+#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
-#include <linux/pci.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/crc32.h>
#include <linux/phy.h>
+
+#include <asm/cpu.h>
#include <asm/mipsregs.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/processor.h>
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/cpu.h>
+#include <au1000.h>
+#include <prom.h>
+
#include "au1000_eth.h"
#ifdef AU1000_ETH_DEBUG
#endif
#define DRV_NAME "au1000_eth"
-#define DRV_VERSION "1.5"
+#define DRV_VERSION "1.6"
#define DRV_AUTHOR "Pete Popov <ppopov@embeddedalley.com>"
#define DRV_DESC "Au1xxx on-chip Ethernet driver"
static int au1000_close(struct net_device *);
static int au1000_tx(struct sk_buff *, struct net_device *);
static int au1000_rx(struct net_device *);
-static irqreturn_t au1000_interrupt(int, void *, struct pt_regs *);
+static irqreturn_t au1000_interrupt(int, void *);
static void au1000_tx_timeout(struct net_device *);
static void set_rx_mode(struct net_device *);
-static struct net_device_stats *au1000_get_stats(struct net_device *);
static int au1000_ioctl(struct net_device *, struct ifreq *, int);
-static int mdio_read(struct net_device *, int, int);
-static void mdio_write(struct net_device *, int, int, u16);
+static int au1000_mdio_read(struct net_device *, int, int);
+static void au1000_mdio_write(struct net_device *, int, int, u16);
static void au1000_adjust_link(struct net_device *);
static void enable_mac(struct net_device *, int);
-// externs
-extern int get_ethernet_addr(char *ethernet_addr);
-extern void str2eaddr(unsigned char *ea, unsigned char *str);
-extern char * __init prom_getcmdline(void);
-
/*
* Theory of operation
*
- * The Au1000 MACs use a simple rx and tx descriptor ring scheme.
- * There are four receive and four transmit descriptors. These
- * descriptors are not in memory; rather, they are just a set of
+ * The Au1000 MACs use a simple rx and tx descriptor ring scheme.
+ * There are four receive and four transmit descriptors. These
+ * descriptors are not in memory; rather, they are just a set of
* hardware registers.
*
* Since the Au1000 has a coherent data cache, the receive and
- * transmit buffers are allocated from the KSEG0 segment. The
+ * transmit buffers are allocated from the KSEG0 segment. The
* hardware registers, however, are still mapped at KSEG1 to
* make sure there's no out-of-order writes, and that all writes
* complete immediately.
* the mac address is, and the mac address is not passed on the
* command line.
*/
-static unsigned char au1000_mac_addr[6] __devinitdata = {
+static unsigned char au1000_mac_addr[6] __devinitdata = {
0x00, 0x50, 0xc2, 0x0c, 0x30, 0x00
};
/*
* MII operations
*/
-static int mdio_read(struct net_device *dev, int phy_addr, int reg)
+static int au1000_mdio_read(struct net_device *dev, int phy_addr, int reg)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
volatile u32 *const mii_control_reg = &aup->mac->mii_control;
while (*mii_control_reg & MAC_MII_BUSY) {
mdelay(1);
if (--timedout == 0) {
- printk(KERN_ERR "%s: read_MII busy timeout!!\n",
+ printk(KERN_ERR "%s: read_MII busy timeout!!\n",
dev->name);
return -1;
}
}
- mii_control = MAC_SET_MII_SELECT_REG(reg) |
+ mii_control = MAC_SET_MII_SELECT_REG(reg) |
MAC_SET_MII_SELECT_PHY(phy_addr) | MAC_MII_READ;
*mii_control_reg = mii_control;
while (*mii_control_reg & MAC_MII_BUSY) {
mdelay(1);
if (--timedout == 0) {
- printk(KERN_ERR "%s: mdio_read busy timeout!!\n",
+ printk(KERN_ERR "%s: mdio_read busy timeout!!\n",
dev->name);
return -1;
}
return (int)*mii_data_reg;
}
-static void mdio_write(struct net_device *dev, int phy_addr, int reg, u16 value)
+static void au1000_mdio_write(struct net_device *dev, int phy_addr,
+ int reg, u16 value)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
volatile u32 *const mii_control_reg = &aup->mac->mii_control;
while (*mii_control_reg & MAC_MII_BUSY) {
mdelay(1);
if (--timedout == 0) {
- printk(KERN_ERR "%s: mdio_write busy timeout!!\n",
+ printk(KERN_ERR "%s: mdio_write busy timeout!!\n",
dev->name);
return;
}
}
- mii_control = MAC_SET_MII_SELECT_REG(reg) |
+ mii_control = MAC_SET_MII_SELECT_REG(reg) |
MAC_SET_MII_SELECT_PHY(phy_addr) | MAC_MII_WRITE;
*mii_data_reg = value;
*mii_control_reg = mii_control;
}
-static int mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
+static int au1000_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
{
/* WARNING: bus->phy_map[phy_addr].attached_dev == dev does
* _NOT_ hold (e.g. when PHY is accessed through other MAC's MII bus) */
enable_mac(dev, 0); /* make sure the MAC associated with this
* mii_bus is enabled */
- return mdio_read(dev, phy_addr, regnum);
+ return au1000_mdio_read(dev, phy_addr, regnum);
}
-static int mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
- u16 value)
+static int au1000_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
+ u16 value)
{
struct net_device *const dev = bus->priv;
enable_mac(dev, 0); /* make sure the MAC associated with this
* mii_bus is enabled */
- mdio_write(dev, phy_addr, regnum, value);
+ au1000_mdio_write(dev, phy_addr, regnum, value);
return 0;
}
-static int mdiobus_reset(struct mii_bus *bus)
+static int au1000_mdiobus_reset(struct mii_bus *bus)
{
struct net_device *const dev = bus->priv;
if(aup->mac_id == 0) { /* get PHY0 */
# if defined(AU1XXX_PHY0_ADDR)
- phydev = au_macs[AU1XXX_PHY0_BUSID]->mii_bus.phy_map[AU1XXX_PHY0_ADDR];
+ phydev = au_macs[AU1XXX_PHY0_BUSID]->mii_bus->phy_map[AU1XXX_PHY0_ADDR];
# else
printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
dev->name);
# endif /* defined(AU1XXX_PHY0_ADDR) */
} else if (aup->mac_id == 1) { /* get PHY1 */
# if defined(AU1XXX_PHY1_ADDR)
- phydev = au_macs[AU1XXX_PHY1_BUSID]->mii_bus.phy_map[AU1XXX_PHY1_ADDR];
+ phydev = au_macs[AU1XXX_PHY1_BUSID]->mii_bus->phy_map[AU1XXX_PHY1_ADDR];
# else
printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
dev->name);
/* find the first (lowest address) PHY on the current MAC's MII bus */
for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++)
- if (aup->mii_bus.phy_map[phy_addr]) {
- phydev = aup->mii_bus.phy_map[phy_addr];
+ if (aup->mii_bus->phy_map[phy_addr]) {
+ phydev = aup->mii_bus->phy_map[phy_addr];
# if !defined(AU1XXX_PHY_SEARCH_HIGHEST_ADDR)
break; /* break out with first one found */
# endif
* the MAC0 MII bus */
for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
struct phy_device *const tmp_phydev =
- au_macs[0]->mii_bus.phy_map[phy_addr];
+ au_macs[0]->mii_bus->phy_map[phy_addr];
if (!tmp_phydev)
continue; /* no PHY here... */
BUG_ON(!phydev);
BUG_ON(phydev->attached_dev);
- phydev = phy_connect(dev, phydev->dev.bus_id, &au1000_adjust_link, 0);
+ phydev = phy_connect(dev, phydev->dev.bus_id, &au1000_adjust_link, 0,
+ PHY_INTERFACE_MODE_MII);
if (IS_ERR(phydev)) {
printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
/*
* Buffer allocation/deallocation routines. The buffer descriptor returned
- * has the virtual and dma address of a buffer suitable for
+ * has the virtual and dma address of a buffer suitable for
* both, receive and transmit operations.
*/
static db_dest_t *GetFreeDB(struct au1000_private *aup)
spin_unlock_irqrestore(&aup->lock, flags);
}
-/*
+/*
* Setup the receive and transmit "rings". These pointers are the addresses
* of the rx and tx MAC DMA registers so they are fixed by the hardware --
* these are not descriptors sitting in memory.
*/
-static void
+static void
setup_hw_rings(struct au1000_private *aup, u32 rx_base, u32 tx_base)
{
int i;
for (i = 0; i < NUM_RX_DMA; i++) {
- aup->rx_dma_ring[i] =
+ aup->rx_dma_ring[i] =
(volatile rx_dma_t *) (rx_base + sizeof(rx_dma_t)*i);
}
for (i = 0; i < NUM_TX_DMA; i++) {
- aup->tx_dma_ring[i] =
+ aup->tx_dma_ring[i] =
(volatile tx_dma_t *) (tx_base + sizeof(tx_dma_t)*i);
}
}
static int num_ifs;
/*
- * Setup the base address and interupt of the Au1xxx ethernet macs
+ * Setup the base address and interrupt of the Au1xxx ethernet macs
* based on cpu type and whether the interface is enabled in sys_pinfunc
* register. The last interface is enabled if SYS_PF_NI2 (bit 4) is 0.
*/
info->regdump_len = 0;
}
-static struct ethtool_ops au1000_ethtool_ops = {
+static const struct ethtool_ops au1000_ethtool_ops = {
.get_settings = au1000_get_settings,
.set_settings = au1000_set_settings,
.get_drvinfo = au1000_get_drvinfo,
struct au1000_private *aup = NULL;
struct net_device *dev = NULL;
db_dest_t *pDB, *pDBfree;
- char *pmac, *argptr;
char ethaddr[6];
int irq, i, err;
u32 base, macen;
aup = dev->priv;
+ spin_lock_init(&aup->lock);
+
/* Allocate the data buffers */
/* Snooping works fine with eth on all au1xxx */
aup->vaddr = (u32)dma_alloc_noncoherent(NULL, MAX_BUF_SIZE *
au_macs[port_num] = aup;
if (port_num == 0) {
- /* Check the environment variables first */
- if (get_ethernet_addr(ethaddr) == 0)
+ if (prom_get_ethernet_addr(ethaddr) == 0)
memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr));
else {
- /* Check command line */
- argptr = prom_getcmdline();
- if ((pmac = strstr(argptr, "ethaddr=")) == NULL)
- printk(KERN_INFO "%s: No MAC address found\n",
- dev->name);
+ printk(KERN_INFO "%s: No MAC address found\n",
+ dev->name);
/* Use the hard coded MAC addresses */
- else {
- str2eaddr(ethaddr, pmac + strlen("ethaddr="));
- memcpy(au1000_mac_addr, ethaddr,
- sizeof(au1000_mac_addr));
- }
}
setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
*aup->enable = 0;
aup->mac_enabled = 0;
- aup->mii_bus.priv = dev;
- aup->mii_bus.read = mdiobus_read;
- aup->mii_bus.write = mdiobus_write;
- aup->mii_bus.reset = mdiobus_reset;
- aup->mii_bus.name = "au1000_eth_mii";
- aup->mii_bus.id = aup->mac_id;
- aup->mii_bus.irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
+ aup->mii_bus = mdiobus_alloc();
+ if (aup->mii_bus == NULL)
+ goto err_out;
+
+ aup->mii_bus->priv = dev;
+ aup->mii_bus->read = au1000_mdiobus_read;
+ aup->mii_bus->write = au1000_mdiobus_write;
+ aup->mii_bus->reset = au1000_mdiobus_reset;
+ aup->mii_bus->name = "au1000_eth_mii";
+ snprintf(aup->mii_bus->id, MII_BUS_ID_SIZE, "%x", aup->mac_id);
+ aup->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
for(i = 0; i < PHY_MAX_ADDR; ++i)
- aup->mii_bus.irq[i] = PHY_POLL;
+ aup->mii_bus->irq[i] = PHY_POLL;
/* if known, set corresponding PHY IRQs */
#if defined(AU1XXX_PHY_STATIC_CONFIG)
# if defined(AU1XXX_PHY0_IRQ)
- if (AU1XXX_PHY0_BUSID == aup->mii_bus.id)
- aup->mii_bus.irq[AU1XXX_PHY0_ADDR] = AU1XXX_PHY0_IRQ;
+ if (AU1XXX_PHY0_BUSID == aup->mac_id)
+ aup->mii_bus->irq[AU1XXX_PHY0_ADDR] = AU1XXX_PHY0_IRQ;
# endif
# if defined(AU1XXX_PHY1_IRQ)
- if (AU1XXX_PHY1_BUSID == aup->mii_bus.id)
- aup->mii_bus.irq[AU1XXX_PHY1_ADDR] = AU1XXX_PHY1_IRQ;
+ if (AU1XXX_PHY1_BUSID == aup->mac_id)
+ aup->mii_bus->irq[AU1XXX_PHY1_ADDR] = AU1XXX_PHY1_IRQ;
# endif
#endif
- mdiobus_register(&aup->mii_bus);
+ mdiobus_register(aup->mii_bus);
if (mii_probe(dev) != 0) {
goto err_out;
aup->tx_db_inuse[i] = pDB;
}
- spin_lock_init(&aup->lock);
dev->base_addr = base;
dev->irq = irq;
dev->open = au1000_open;
dev->hard_start_xmit = au1000_tx;
dev->stop = au1000_close;
- dev->get_stats = au1000_get_stats;
dev->set_multicast_list = &set_rx_mode;
dev->do_ioctl = &au1000_ioctl;
SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops);
dev->tx_timeout = au1000_tx_timeout;
dev->watchdog_timeo = ETH_TX_TIMEOUT;
- /*
- * The boot code uses the ethernet controller, so reset it to start
+ /*
+ * The boot code uses the ethernet controller, so reset it to start
* fresh. au1000_init() expects that the device is in reset state.
*/
reset_mac(dev);
return dev;
err_out:
+ if (aup->mii_bus != NULL) {
+ mdiobus_unregister(aup->mii_bus);
+ mdiobus_free(aup->mii_bus);
+ }
+
/* here we should have a valid dev plus aup-> register addresses
* so we can reset the mac properly.*/
reset_mac(dev);
return NULL;
}
-/*
+/*
* Initialize the interface.
*
* When the device powers up, the clocks are disabled and the
static int au1000_init(struct net_device *dev)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
- u32 flags;
+ unsigned long flags;
int i;
u32 control;
- if (au1000_debug > 4)
+ if (au1000_debug > 4)
printk("%s: au1000_init\n", dev->name);
/* bring the device out of reset */
if(phydev->link != aup->old_link) {
// link state changed
- if (phydev->link) // link went up
- netif_schedule(dev);
- else { // link went down
+ if (!phydev->link) {
+ /* link went down */
aup->old_speed = 0;
aup->old_duplex = -1;
}
if (dev) {
aup = (struct au1000_private *) dev->priv;
unregister_netdev(dev);
+ mdiobus_unregister(aup->mii_bus);
+ mdiobus_free(aup->mii_bus);
for (j = 0; j < NUM_RX_DMA; j++)
if (aup->rx_db_inuse[j])
ReleaseDB(aup, aup->rx_db_inuse[j]);
static void update_tx_stats(struct net_device *dev, u32 status)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct net_device_stats *ps = &aup->stats;
+ struct net_device_stats *ps = &dev->stats;
if (status & TX_FRAME_ABORTED) {
if (!aup->phy_dev || (DUPLEX_FULL == aup->phy_dev->duplex)) {
static int au1000_tx(struct sk_buff *skb, struct net_device *dev)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct net_device_stats *ps = &aup->stats;
+ struct net_device_stats *ps = &dev->stats;
volatile tx_dma_t *ptxd;
u32 buff_stat;
db_dest_t *pDB;
int i;
if (au1000_debug > 5)
- printk("%s: tx: aup %x len=%d, data=%p, head %d\n",
- dev->name, (unsigned)aup, skb->len,
+ printk("%s: tx: aup %x len=%d, data=%p, head %d\n",
+ dev->name, (unsigned)aup, skb->len,
skb->data, aup->tx_head);
ptxd = aup->tx_dma_ring[aup->tx_head];
}
pDB = aup->tx_db_inuse[aup->tx_head];
- memcpy((void *)pDB->vaddr, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, pDB->vaddr, skb->len);
if (skb->len < ETH_ZLEN) {
- for (i=skb->len; i<ETH_ZLEN; i++) {
+ for (i=skb->len; i<ETH_ZLEN; i++) {
((char *)pDB->vaddr)[i] = 0;
}
ptxd->len = ETH_ZLEN;
static inline void update_rx_stats(struct net_device *dev, u32 status)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct net_device_stats *ps = &aup->stats;
+ struct net_device_stats *ps = &dev->stats;
ps->rx_packets++;
if (status & RX_MCAST_FRAME)
if (status & RX_COLL)
ps->collisions++;
}
- else
+ else
ps->rx_bytes += status & RX_FRAME_LEN_MASK;
}
printk(KERN_ERR
"%s: Memory squeeze, dropping packet.\n",
dev->name);
- aup->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
continue;
}
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte IP header align */
- eth_copy_and_sum(skb,
- (unsigned char *)pDB->vaddr, frmlen, 0);
+ skb_copy_to_linear_data(skb,
+ (unsigned char *)pDB->vaddr, frmlen);
skb_put(skb, frmlen);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb); /* pass the packet to upper layers */
}
else {
if (au1000_debug > 4) {
- if (status & RX_MISSED_FRAME)
+ if (status & RX_MISSED_FRAME)
printk("rx miss\n");
- if (status & RX_WDOG_TIMER)
+ if (status & RX_WDOG_TIMER)
printk("rx wdog\n");
- if (status & RX_RUNT)
+ if (status & RX_RUNT)
printk("rx runt\n");
- if (status & RX_OVERLEN)
+ if (status & RX_OVERLEN)
printk("rx overlen\n");
if (status & RX_COLL)
printk("rx coll\n");
/*
* Au1000 interrupt service routine.
*/
-static irqreturn_t au1000_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t au1000_interrupt(int irq, void *dev_id)
{
- struct net_device *dev = (struct net_device *) dev_id;
-
- if (dev == NULL) {
- printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name);
- return IRQ_RETVAL(1);
- }
+ struct net_device *dev = dev_id;
/* Handle RX interrupts first to minimize chance of overrun */
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
- if (au1000_debug > 4)
+ if (au1000_debug > 4)
printk("%s: set_rx_mode: flags=%x\n", dev->name, dev->flags);
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
aup->mac->control |= MAC_PROMISCUOUS;
- printk(KERN_INFO "%s: Promiscuous mode enabled.\n", dev->name);
} else if ((dev->flags & IFF_ALLMULTI) ||
dev->mc_count > MULTICAST_FILTER_LIMIT) {
aup->mac->control |= MAC_PASS_ALL_MULTI;
mc_filter[1] = mc_filter[0] = 0;
for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
i++, mclist = mclist->next) {
- set_bit(ether_crc(ETH_ALEN, mclist->dmi_addr)>>26,
+ set_bit(ether_crc(ETH_ALEN, mclist->dmi_addr)>>26,
(long *)mc_filter);
}
aup->mac->multi_hash_high = mc_filter[1];
return phy_mii_ioctl(aup->phy_dev, if_mii(rq), cmd);
}
-static struct net_device_stats *au1000_get_stats(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
-
- if (au1000_debug > 4)
- printk("%s: au1000_get_stats: dev=%p\n", dev->name, dev);
-
- if (netif_device_present(dev)) {
- return &aup->stats;
- }
- return 0;
-}
-
module_init(au1000_init_module);
module_exit(au1000_cleanup_module);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff