*
* Alchemy Au1x00 ethernet driver
*
- * Copyright 2001,2002,2003 MontaVista Software Inc.
+ * Copyright 2001-2003, 2006 MontaVista Software Inc.
* 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
+ *
* Author: MontaVista Software, Inc.
* ppopov@mvista.com or source@mvista.com
*
*
* ########################################################################
*
- *
+ *
*/
-
+#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/mii.h>
#include <linux/skbuff.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
static int au1000_debug = 3;
#endif
-#define DRV_NAME "au1000eth"
-#define DRV_VERSION "1.5"
+#define DRV_NAME "au1000_eth"
+#define DRV_VERSION "1.6"
#define DRV_AUTHOR "Pete Popov <ppopov@embeddedalley.com>"
#define DRV_DESC "Au1xxx on-chip Ethernet driver"
MODULE_DESCRIPTION(DRV_DESC);
MODULE_LICENSE("GPL");
-// prototypes
-static void hard_stop(struct net_device *);
-static void enable_rx_tx(struct net_device *dev);
-static struct net_device * au1000_probe(u32 ioaddr, int irq, int port_num);
-static int au1000_init(struct net_device *);
-static int au1000_open(struct net_device *);
-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 void au1000_tx_timeout(struct net_device *);
-static int au1000_set_config(struct net_device *dev, struct ifmap *map);
-static void set_rx_mode(struct net_device *);
-static struct net_device_stats *au1000_get_stats(struct net_device *);
-static inline void update_tx_stats(struct net_device *, u32, u32);
-static inline void update_rx_stats(struct net_device *, u32);
-static void au1000_timer(unsigned long);
-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 void dump_mii(struct net_device *dev, int phy_id);
-
-// externs
-extern void ack_rise_edge_irq(unsigned int);
-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
};
-#define nibswap(x) ((((x) >> 4) & 0x0f) | (((x) << 4) & 0xf0))
-#define RUN_AT(x) (jiffies + (x))
-
-// For reading/writing 32-bit words from/to DMA memory
-#define cpu_to_dma32 cpu_to_be32
-#define dma32_to_cpu be32_to_cpu
-
struct au1000_private *au_macs[NUM_ETH_INTERFACES];
-/* FIXME
- * All of the PHY code really should be detached from the MAC
- * code.
+/*
+ * board-specific configurations
+ *
+ * PHY detection algorithm
+ *
+ * If AU1XXX_PHY_STATIC_CONFIG is undefined, the PHY setup is
+ * autodetected:
+ *
+ * mii_probe() first searches the current MAC's MII bus for a PHY,
+ * selecting the first (or last, if AU1XXX_PHY_SEARCH_HIGHEST_ADDR is
+ * defined) PHY address not already claimed by another netdev.
+ *
+ * If nothing was found that way when searching for the 2nd ethernet
+ * controller's PHY and AU1XXX_PHY1_SEARCH_ON_MAC0 is defined, then
+ * the first MII bus is searched as well for an unclaimed PHY; this is
+ * needed in case of a dual-PHY accessible only through the MAC0's MII
+ * bus.
+ *
+ * Finally, if no PHY is found, then the corresponding ethernet
+ * controller is not registered to the network subsystem.
*/
-/* Default advertise */
-#define GENMII_DEFAULT_ADVERTISE \
- ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
- ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
- ADVERTISED_Autoneg
-
-#define GENMII_DEFAULT_FEATURES \
- SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
- SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
- SUPPORTED_Autoneg
-
-static char *phy_link[] =
-{ "unknown",
- "10Base2", "10BaseT",
- "AUI",
- "100BaseT", "100BaseTX", "100BaseFX"
-};
+/* autodetection defaults */
+#undef AU1XXX_PHY_SEARCH_HIGHEST_ADDR
+#define AU1XXX_PHY1_SEARCH_ON_MAC0
-int bcm_5201_init(struct net_device *dev, int phy_addr)
-{
- s16 data;
-
- /* Stop auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO);
-
- /* Set advertisement to 10/100 and Half/Full duplex
- * (full capabilities) */
- data = mdio_read(dev, phy_addr, MII_ANADV);
- data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T;
- mdio_write(dev, phy_addr, MII_ANADV, data);
-
- /* Restart auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO;
- mdio_write(dev, phy_addr, MII_CONTROL, data);
-
- if (au1000_debug > 4)
- dump_mii(dev, phy_addr);
- return 0;
-}
+/* static PHY setup
+ *
+ * most boards PHY setup should be detectable properly with the
+ * autodetection algorithm in mii_probe(), but in some cases (e.g. if
+ * you have a switch attached, or want to use the PHY's interrupt
+ * notification capabilities) you can provide a static PHY
+ * configuration here
+ *
+ * IRQs may only be set, if a PHY address was configured
+ * If a PHY address is given, also a bus id is required to be set
+ *
+ * ps: make sure the used irqs are configured properly in the board
+ * specific irq-map
+ */
-int bcm_5201_reset(struct net_device *dev, int phy_addr)
-{
- s16 mii_control, timeout;
-
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET);
- mdelay(1);
- for (timeout = 100; timeout > 0; --timeout) {
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- if ((mii_control & MII_CNTL_RESET) == 0)
- break;
- mdelay(1);
- }
- if (mii_control & MII_CNTL_RESET) {
- printk(KERN_ERR "%s PHY reset timeout !\n", dev->name);
- return -1;
- }
- return 0;
-}
+#if defined(CONFIG_MIPS_BOSPORUS)
+/*
+ * Micrel/Kendin 5 port switch attached to MAC0,
+ * MAC0 is associated with PHY address 5 (== WAN port)
+ * MAC1 is not associated with any PHY, since it's connected directly
+ * to the switch.
+ * no interrupts are used
+ */
+# define AU1XXX_PHY_STATIC_CONFIG
-int
-bcm_5201_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
-{
- u16 mii_data;
- struct au1000_private *aup;
+# define AU1XXX_PHY0_ADDR 5
+# define AU1XXX_PHY0_BUSID 0
+# undef AU1XXX_PHY0_IRQ
- if (!dev) {
- printk(KERN_ERR "bcm_5201_status error: NULL dev\n");
- return -1;
- }
- aup = (struct au1000_private *) dev->priv;
-
- mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS);
- if (mii_data & MII_STAT_LINK) {
- *link = 1;
- mii_data = mdio_read(dev, aup->phy_addr, MII_AUX_CNTRL);
- if (mii_data & MII_AUX_100) {
- if (mii_data & MII_AUX_FDX) {
- *speed = IF_PORT_100BASEFX;
- dev->if_port = IF_PORT_100BASEFX;
- }
- else {
- *speed = IF_PORT_100BASETX;
- dev->if_port = IF_PORT_100BASETX;
- }
- }
- else {
- *speed = IF_PORT_10BASET;
- dev->if_port = IF_PORT_10BASET;
- }
+# undef AU1XXX_PHY1_ADDR
+# undef AU1XXX_PHY1_BUSID
+# undef AU1XXX_PHY1_IRQ
+#endif
- }
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
- }
- return 0;
-}
+#if defined(AU1XXX_PHY0_BUSID) && (AU1XXX_PHY0_BUSID > 0)
+# error MAC0-associated PHY attached 2nd MACs MII bus not supported yet
+#endif
-int lsi_80227_init(struct net_device *dev, int phy_addr)
+static void enable_mac(struct net_device *dev, int force_reset)
{
- if (au1000_debug > 4)
- printk("lsi_80227_init\n");
+ unsigned long flags;
+ struct au1000_private *aup = netdev_priv(dev);
- /* restart auto-negotiation */
- mdio_write(dev, phy_addr, MII_CONTROL,
- MII_CNTL_F100 | MII_CNTL_AUTO | MII_CNTL_RST_AUTO); // | MII_CNTL_FDX);
- mdelay(1);
+ spin_lock_irqsave(&aup->lock, flags);
- /* set up LEDs to correct display */
-#ifdef CONFIG_MIPS_MTX1
- mdio_write(dev, phy_addr, 17, 0xff80);
-#else
- mdio_write(dev, phy_addr, 17, 0xffc0);
-#endif
+ if(force_reset || (!aup->mac_enabled)) {
+ *aup->enable = MAC_EN_CLOCK_ENABLE;
+ au_sync_delay(2);
+ *aup->enable = (MAC_EN_RESET0 | MAC_EN_RESET1 | MAC_EN_RESET2
+ | MAC_EN_CLOCK_ENABLE);
+ au_sync_delay(2);
- if (au1000_debug > 4)
- dump_mii(dev, phy_addr);
- return 0;
+ aup->mac_enabled = 1;
+ }
+
+ spin_unlock_irqrestore(&aup->lock, flags);
}
-int lsi_80227_reset(struct net_device *dev, int phy_addr)
+/*
+ * MII operations
+ */
+static int au1000_mdio_read(struct net_device *dev, int phy_addr, int reg)
{
- s16 mii_control, timeout;
-
- if (au1000_debug > 4) {
- printk("lsi_80227_reset\n");
- dump_mii(dev, phy_addr);
- }
+ struct au1000_private *aup = netdev_priv(dev);
+ volatile u32 *const mii_control_reg = &aup->mac->mii_control;
+ volatile u32 *const mii_data_reg = &aup->mac->mii_data;
+ u32 timedout = 20;
+ u32 mii_control;
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET);
- mdelay(1);
- for (timeout = 100; timeout > 0; --timeout) {
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- if ((mii_control & MII_CNTL_RESET) == 0)
- break;
+ while (*mii_control_reg & MAC_MII_BUSY) {
mdelay(1);
+ if (--timedout == 0) {
+ printk(KERN_ERR "%s: read_MII busy timeout!!\n",
+ dev->name);
+ return -1;
+ }
}
- if (mii_control & MII_CNTL_RESET) {
- printk(KERN_ERR "%s PHY reset timeout !\n", dev->name);
- return -1;
+
+ mii_control = MAC_SET_MII_SELECT_REG(reg) |
+ MAC_SET_MII_SELECT_PHY(phy_addr) | MAC_MII_READ;
+
+ *mii_control_reg = mii_control;
+
+ timedout = 20;
+ while (*mii_control_reg & MAC_MII_BUSY) {
+ mdelay(1);
+ if (--timedout == 0) {
+ printk(KERN_ERR "%s: mdio_read busy timeout!!\n",
+ dev->name);
+ return -1;
+ }
}
- return 0;
+ return (int)*mii_data_reg;
}
-int
-lsi_80227_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
+static void au1000_mdio_write(struct net_device *dev, int phy_addr,
+ int reg, u16 value)
{
- u16 mii_data;
- struct au1000_private *aup;
+ struct au1000_private *aup = netdev_priv(dev);
+ volatile u32 *const mii_control_reg = &aup->mac->mii_control;
+ volatile u32 *const mii_data_reg = &aup->mac->mii_data;
+ u32 timedout = 20;
+ u32 mii_control;
- if (!dev) {
- printk(KERN_ERR "lsi_80227_status error: NULL dev\n");
- return -1;
- }
- aup = (struct au1000_private *) dev->priv;
-
- mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS);
- if (mii_data & MII_STAT_LINK) {
- *link = 1;
- mii_data = mdio_read(dev, aup->phy_addr, MII_LSI_PHY_STAT);
- if (mii_data & MII_LSI_PHY_STAT_SPD) {
- if (mii_data & MII_LSI_PHY_STAT_FDX) {
- *speed = IF_PORT_100BASEFX;
- dev->if_port = IF_PORT_100BASEFX;
- }
- else {
- *speed = IF_PORT_100BASETX;
- dev->if_port = IF_PORT_100BASETX;
- }
- }
- else {
- *speed = IF_PORT_10BASET;
- dev->if_port = IF_PORT_10BASET;
+ while (*mii_control_reg & MAC_MII_BUSY) {
+ mdelay(1);
+ if (--timedout == 0) {
+ printk(KERN_ERR "%s: mdio_write busy timeout!!\n",
+ dev->name);
+ return;
}
-
- }
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
}
- return 0;
+
+ 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;
}
-int am79c901_init(struct net_device *dev, int phy_addr)
+static int au1000_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
{
- printk("am79c901_init\n");
- return 0;
+ /* WARNING: bus->phy_map[phy_addr].attached_dev == dev does
+ * _NOT_ hold (e.g. when PHY is accessed through other MAC's MII bus) */
+ struct net_device *const dev = bus->priv;
+
+ enable_mac(dev, 0); /* make sure the MAC associated with this
+ * mii_bus is enabled */
+ return au1000_mdio_read(dev, phy_addr, regnum);
}
-int am79c901_reset(struct net_device *dev, int phy_addr)
+static int au1000_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
+ u16 value)
{
- printk("am79c901_reset\n");
+ struct net_device *const dev = bus->priv;
+
+ enable_mac(dev, 0); /* make sure the MAC associated with this
+ * mii_bus is enabled */
+ au1000_mdio_write(dev, phy_addr, regnum, value);
return 0;
}
-int
-am79c901_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
+static int au1000_mdiobus_reset(struct mii_bus *bus)
{
+ struct net_device *const dev = bus->priv;
+
+ enable_mac(dev, 0); /* make sure the MAC associated with this
+ * mii_bus is enabled */
return 0;
}
-int am79c874_init(struct net_device *dev, int phy_addr)
+static void hard_stop(struct net_device *dev)
{
- s16 data;
+ struct au1000_private *aup = netdev_priv(dev);
- /* 79c874 has quit resembled bit assignments to BCM5201 */
if (au1000_debug > 4)
- printk("am79c847_init\n");
-
- /* Stop auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO);
-
- /* Set advertisement to 10/100 and Half/Full duplex
- * (full capabilities) */
- data = mdio_read(dev, phy_addr, MII_ANADV);
- data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T;
- mdio_write(dev, phy_addr, MII_ANADV, data);
-
- /* Restart auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO;
-
- mdio_write(dev, phy_addr, MII_CONTROL, data);
+ printk(KERN_INFO "%s: hard stop\n", dev->name);
- if (au1000_debug > 4) dump_mii(dev, phy_addr);
- return 0;
+ aup->mac->control &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE);
+ au_sync_delay(10);
}
-int am79c874_reset(struct net_device *dev, int phy_addr)
+static void enable_rx_tx(struct net_device *dev)
{
- s16 mii_control, timeout;
-
+ struct au1000_private *aup = netdev_priv(dev);
+
if (au1000_debug > 4)
- printk("am79c874_reset\n");
-
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET);
- mdelay(1);
- for (timeout = 100; timeout > 0; --timeout) {
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- if ((mii_control & MII_CNTL_RESET) == 0)
- break;
- mdelay(1);
- }
- if (mii_control & MII_CNTL_RESET) {
- printk(KERN_ERR "%s PHY reset timeout !\n", dev->name);
- return -1;
- }
- return 0;
+ printk(KERN_INFO "%s: enable_rx_tx\n", dev->name);
+
+ aup->mac->control |= (MAC_RX_ENABLE | MAC_TX_ENABLE);
+ au_sync_delay(10);
}
-int
-am79c874_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
+static void
+au1000_adjust_link(struct net_device *dev)
{
- u16 mii_data;
- struct au1000_private *aup;
+ struct au1000_private *aup = netdev_priv(dev);
+ struct phy_device *phydev = aup->phy_dev;
+ unsigned long flags;
- // printk("am79c874_status\n");
- if (!dev) {
- printk(KERN_ERR "am79c874_status error: NULL dev\n");
- return -1;
- }
+ int status_change = 0;
- aup = (struct au1000_private *) dev->priv;
- mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS);
+ BUG_ON(!aup->phy_dev);
- if (mii_data & MII_STAT_LINK) {
- *link = 1;
- mii_data = mdio_read(dev, aup->phy_addr, MII_AMD_PHY_STAT);
- if (mii_data & MII_AMD_PHY_STAT_SPD) {
- if (mii_data & MII_AMD_PHY_STAT_FDX) {
- *speed = IF_PORT_100BASEFX;
- dev->if_port = IF_PORT_100BASEFX;
- }
- else {
- *speed = IF_PORT_100BASETX;
- dev->if_port = IF_PORT_100BASETX;
- }
- }
- else {
- *speed = IF_PORT_10BASET;
- dev->if_port = IF_PORT_10BASET;
+ spin_lock_irqsave(&aup->lock, flags);
+
+ if (phydev->link && (aup->old_speed != phydev->speed)) {
+ // speed changed
+
+ switch(phydev->speed) {
+ case SPEED_10:
+ case SPEED_100:
+ break;
+ default:
+ printk(KERN_WARNING
+ "%s: Speed (%d) is not 10/100 ???\n",
+ dev->name, phydev->speed);
+ break;
}
- }
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
- }
- return 0;
-}
+ aup->old_speed = phydev->speed;
-int lxt971a_init(struct net_device *dev, int phy_addr)
-{
- if (au1000_debug > 4)
- printk("lxt971a_init\n");
+ status_change = 1;
+ }
- /* restart auto-negotiation */
- mdio_write(dev, phy_addr, MII_CONTROL,
- MII_CNTL_F100 | MII_CNTL_AUTO | MII_CNTL_RST_AUTO | MII_CNTL_FDX);
+ if (phydev->link && (aup->old_duplex != phydev->duplex)) {
+ // duplex mode changed
- /* set up LEDs to correct display */
- mdio_write(dev, phy_addr, 20, 0x0422);
+ /* switching duplex mode requires to disable rx and tx! */
+ hard_stop(dev);
- if (au1000_debug > 4)
- dump_mii(dev, phy_addr);
- return 0;
-}
+ if (DUPLEX_FULL == phydev->duplex)
+ aup->mac->control = ((aup->mac->control
+ | MAC_FULL_DUPLEX)
+ & ~MAC_DISABLE_RX_OWN);
+ else
+ aup->mac->control = ((aup->mac->control
+ & ~MAC_FULL_DUPLEX)
+ | MAC_DISABLE_RX_OWN);
+ au_sync_delay(1);
-int lxt971a_reset(struct net_device *dev, int phy_addr)
-{
- s16 mii_control, timeout;
-
- if (au1000_debug > 4) {
- printk("lxt971a_reset\n");
- dump_mii(dev, phy_addr);
- }
+ enable_rx_tx(dev);
+ aup->old_duplex = phydev->duplex;
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET);
- mdelay(1);
- for (timeout = 100; timeout > 0; --timeout) {
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- if ((mii_control & MII_CNTL_RESET) == 0)
- break;
- mdelay(1);
- }
- if (mii_control & MII_CNTL_RESET) {
- printk(KERN_ERR "%s PHY reset timeout !\n", dev->name);
- return -1;
+ status_change = 1;
}
- return 0;
-}
-int
-lxt971a_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
-{
- u16 mii_data;
- struct au1000_private *aup;
+ if(phydev->link != aup->old_link) {
+ // link state changed
- if (!dev) {
- printk(KERN_ERR "lxt971a_status error: NULL dev\n");
- return -1;
- }
- aup = (struct au1000_private *) dev->priv;
-
- mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS);
- if (mii_data & MII_STAT_LINK) {
- *link = 1;
- mii_data = mdio_read(dev, aup->phy_addr, MII_INTEL_PHY_STAT);
- if (mii_data & MII_INTEL_PHY_STAT_SPD) {
- if (mii_data & MII_INTEL_PHY_STAT_FDX) {
- *speed = IF_PORT_100BASEFX;
- dev->if_port = IF_PORT_100BASEFX;
- }
- else {
- *speed = IF_PORT_100BASETX;
- dev->if_port = IF_PORT_100BASETX;
- }
- }
- else {
- *speed = IF_PORT_10BASET;
- dev->if_port = IF_PORT_10BASET;
+ if (!phydev->link) {
+ /* link went down */
+ aup->old_speed = 0;
+ aup->old_duplex = -1;
}
+ aup->old_link = phydev->link;
+ status_change = 1;
}
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
- }
- return 0;
-}
-int ks8995m_init(struct net_device *dev, int phy_addr)
-{
- s16 data;
-
-// printk("ks8995m_init\n");
- /* Stop auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO);
-
- /* Set advertisement to 10/100 and Half/Full duplex
- * (full capabilities) */
- data = mdio_read(dev, phy_addr, MII_ANADV);
- data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T;
- mdio_write(dev, phy_addr, MII_ANADV, data);
-
- /* Restart auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO;
- mdio_write(dev, phy_addr, MII_CONTROL, data);
-
- if (au1000_debug > 4) dump_mii(dev, phy_addr);
-
- return 0;
-}
+ spin_unlock_irqrestore(&aup->lock, flags);
-int ks8995m_reset(struct net_device *dev, int phy_addr)
-{
- s16 mii_control, timeout;
-
-// printk("ks8995m_reset\n");
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET);
- mdelay(1);
- for (timeout = 100; timeout > 0; --timeout) {
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- if ((mii_control & MII_CNTL_RESET) == 0)
- break;
- mdelay(1);
- }
- if (mii_control & MII_CNTL_RESET) {
- printk(KERN_ERR "%s PHY reset timeout !\n", dev->name);
- return -1;
+ if (status_change) {
+ if (phydev->link)
+ printk(KERN_INFO "%s: link up (%d/%s)\n",
+ dev->name, phydev->speed,
+ DUPLEX_FULL == phydev->duplex ? "Full" : "Half");
+ else
+ printk(KERN_INFO "%s: link down\n", dev->name);
}
- return 0;
}
-int ks8995m_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
+static int mii_probe (struct net_device *dev)
{
- u16 mii_data;
- struct au1000_private *aup;
+ struct au1000_private *const aup = netdev_priv(dev);
+ struct phy_device *phydev = NULL;
+
+#if defined(AU1XXX_PHY_STATIC_CONFIG)
+ BUG_ON(aup->mac_id < 0 || aup->mac_id > 1);
+
+ 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];
+# else
+ printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
+ dev->name);
+ return 0;
+# 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];
+# else
+ printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
+ dev->name);
+ return 0;
+# endif /* defined(AU1XXX_PHY1_ADDR) */
+ }
+
+#else /* defined(AU1XXX_PHY_STATIC_CONFIG) */
+ int phy_addr;
- if (!dev) {
- printk(KERN_ERR "ks8995m_status error: NULL dev\n");
- return -1;
- }
- aup = (struct au1000_private *) dev->priv;
-
- mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS);
- if (mii_data & MII_STAT_LINK) {
- *link = 1;
- mii_data = mdio_read(dev, aup->phy_addr, MII_AUX_CNTRL);
- if (mii_data & MII_AUX_100) {
- if (mii_data & MII_AUX_FDX) {
- *speed = IF_PORT_100BASEFX;
- dev->if_port = IF_PORT_100BASEFX;
- }
- else {
- *speed = IF_PORT_100BASETX;
- dev->if_port = IF_PORT_100BASETX;
- }
- }
- else {
- *speed = IF_PORT_10BASET;
- dev->if_port = IF_PORT_10BASET;
+ /* 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 !defined(AU1XXX_PHY_SEARCH_HIGHEST_ADDR)
+ break; /* break out with first one found */
+# endif
}
- }
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
- }
- return 0;
-}
-
-int
-smsc_83C185_init (struct net_device *dev, int phy_addr)
-{
- s16 data;
-
- if (au1000_debug > 4)
- printk("smsc_83C185_init\n");
+# if defined(AU1XXX_PHY1_SEARCH_ON_MAC0)
+ /* try harder to find a PHY */
+ if (!phydev && (aup->mac_id == 1)) {
+ /* no PHY found, maybe we have a dual PHY? */
+ printk (KERN_INFO DRV_NAME ": no PHY found on MAC1, "
+ "let's see if it's attached to MAC0...\n");
- /* Stop auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO);
+ BUG_ON(!au_macs[0]);
- /* Set advertisement to 10/100 and Half/Full duplex
- * (full capabilities) */
- data = mdio_read(dev, phy_addr, MII_ANADV);
- data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T;
- mdio_write(dev, phy_addr, MII_ANADV, data);
-
- /* Restart auto-negotiation */
- data = mdio_read(dev, phy_addr, MII_CONTROL);
- data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO;
+ /* find the first (lowest address) non-attached PHY on
+ * 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];
- mdio_write(dev, phy_addr, MII_CONTROL, data);
+ if (!tmp_phydev)
+ continue; /* no PHY here... */
- if (au1000_debug > 4) dump_mii(dev, phy_addr);
- return 0;
-}
+ if (tmp_phydev->attached_dev)
+ continue; /* already claimed by MAC0 */
-int
-smsc_83C185_reset (struct net_device *dev, int phy_addr)
-{
- s16 mii_control, timeout;
-
- if (au1000_debug > 4)
- printk("smsc_83C185_reset\n");
-
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET);
- mdelay(1);
- for (timeout = 100; timeout > 0; --timeout) {
- mii_control = mdio_read(dev, phy_addr, MII_CONTROL);
- if ((mii_control & MII_CNTL_RESET) == 0)
- break;
- mdelay(1);
+ phydev = tmp_phydev;
+ break; /* found it */
+ }
}
- if (mii_control & MII_CNTL_RESET) {
- printk(KERN_ERR "%s PHY reset timeout !\n", dev->name);
+# endif /* defined(AU1XXX_PHY1_SEARCH_OTHER_BUS) */
+
+#endif /* defined(AU1XXX_PHY_STATIC_CONFIG) */
+ if (!phydev) {
+ printk (KERN_ERR DRV_NAME ":%s: no PHY found\n", dev->name);
return -1;
}
- return 0;
-}
-int
-smsc_83C185_status (struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
-{
- u16 mii_data;
- struct au1000_private *aup;
+ /* now we are supposed to have a proper phydev, to attach to... */
+ BUG_ON(phydev->attached_dev);
- if (!dev) {
- printk(KERN_ERR "smsc_83C185_status error: NULL dev\n");
- return -1;
+ phydev = phy_connect(dev, dev_name(&phydev->dev), &au1000_adjust_link,
+ 0, PHY_INTERFACE_MODE_MII);
+
+ if (IS_ERR(phydev)) {
+ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
+ return PTR_ERR(phydev);
}
- aup = (struct au1000_private *) dev->priv;
- mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS);
+ /* mask with MAC supported features */
+ phydev->supported &= (SUPPORTED_10baseT_Half
+ | SUPPORTED_10baseT_Full
+ | SUPPORTED_100baseT_Half
+ | SUPPORTED_100baseT_Full
+ | SUPPORTED_Autoneg
+ /* | SUPPORTED_Pause | SUPPORTED_Asym_Pause */
+ | SUPPORTED_MII
+ | SUPPORTED_TP);
+
+ phydev->advertising = phydev->supported;
+
+ aup->old_link = 0;
+ aup->old_speed = 0;
+ aup->old_duplex = -1;
+ aup->phy_dev = phydev;
+
+ printk(KERN_INFO "%s: attached PHY driver [%s] "
+ "(mii_bus:phy_addr=%s, irq=%d)\n", dev->name,
+ phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
- if (mii_data & MII_STAT_LINK) {
- *link = 1;
- mii_data = mdio_read(dev, aup->phy_addr, 0x1f);
- if (mii_data & (1<<3)) {
- if (mii_data & (1<<4)) {
- *speed = IF_PORT_100BASEFX;
- dev->if_port = IF_PORT_100BASEFX;
- }
- else {
- *speed = IF_PORT_100BASETX;
- dev->if_port = IF_PORT_100BASETX;
- }
- }
- else {
- *speed = IF_PORT_10BASET;
- dev->if_port = IF_PORT_10BASET;
- }
- }
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
- }
return 0;
}
-#ifdef CONFIG_MIPS_BOSPORUS
-int stub_init(struct net_device *dev, int phy_addr)
+/*
+ * Buffer allocation/deallocation routines. The buffer descriptor returned
+ * 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)
{
- //printk("PHY stub_init\n");
- return 0;
+ db_dest_t *pDB;
+ pDB = aup->pDBfree;
+
+ if (pDB) {
+ aup->pDBfree = pDB->pnext;
+ }
+ return pDB;
}
-int stub_reset(struct net_device *dev, int phy_addr)
+void ReleaseDB(struct au1000_private *aup, db_dest_t *pDB)
{
- //printk("PHY stub_reset\n");
- return 0;
+ db_dest_t *pDBfree = aup->pDBfree;
+ if (pDBfree)
+ pDBfree->pnext = pDB;
+ aup->pDBfree = pDB;
}
-int
-stub_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
+static void reset_mac_unlocked(struct net_device *dev)
{
- //printk("PHY stub_status\n");
- *link = 1;
- /* hmmm, revisit */
- *speed = IF_PORT_100BASEFX;
- dev->if_port = IF_PORT_100BASEFX;
- return 0;
-}
-#endif
+ struct au1000_private *const aup = netdev_priv(dev);
+ int i;
-struct phy_ops bcm_5201_ops = {
- bcm_5201_init,
- bcm_5201_reset,
- bcm_5201_status,
-};
-
-struct phy_ops am79c874_ops = {
- am79c874_init,
- am79c874_reset,
- am79c874_status,
-};
-
-struct phy_ops am79c901_ops = {
- am79c901_init,
- am79c901_reset,
- am79c901_status,
-};
-
-struct phy_ops lsi_80227_ops = {
- lsi_80227_init,
- lsi_80227_reset,
- lsi_80227_status,
-};
-
-struct phy_ops lxt971a_ops = {
- lxt971a_init,
- lxt971a_reset,
- lxt971a_status,
-};
-
-struct phy_ops ks8995m_ops = {
- ks8995m_init,
- ks8995m_reset,
- ks8995m_status,
-};
-
-struct phy_ops smsc_83C185_ops = {
- smsc_83C185_init,
- smsc_83C185_reset,
- smsc_83C185_status,
-};
-
-#ifdef CONFIG_MIPS_BOSPORUS
-struct phy_ops stub_ops = {
- stub_init,
- stub_reset,
- stub_status,
-};
-#endif
-
-static struct mii_chip_info {
- const char * name;
- u16 phy_id0;
- u16 phy_id1;
- struct phy_ops *phy_ops;
- int dual_phy;
-} mii_chip_table[] = {
- {"Broadcom BCM5201 10/100 BaseT PHY",0x0040,0x6212, &bcm_5201_ops,0},
- {"Broadcom BCM5221 10/100 BaseT PHY",0x0040,0x61e4, &bcm_5201_ops,0},
- {"Broadcom BCM5222 10/100 BaseT PHY",0x0040,0x6322, &bcm_5201_ops,1},
- {"AMD 79C901 HomePNA PHY",0x0000,0x35c8, &am79c901_ops,0},
- {"AMD 79C874 10/100 BaseT PHY",0x0022,0x561b, &am79c874_ops,0},
- {"LSI 80227 10/100 BaseT PHY",0x0016,0xf840, &lsi_80227_ops,0},
- {"Intel LXT971A Dual Speed PHY",0x0013,0x78e2, &lxt971a_ops,0},
- {"Kendin KS8995M 10/100 BaseT PHY",0x0022,0x1450, &ks8995m_ops,0},
- {"SMSC LAN83C185 10/100 BaseT PHY",0x0007,0xc0a3, &smsc_83C185_ops,0},
-#ifdef CONFIG_MIPS_BOSPORUS
- {"Stub", 0x1234, 0x5678, &stub_ops },
-#endif
- {0,},
-};
-
-static int mdio_read(struct net_device *dev, int phy_id, int reg)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- volatile u32 *mii_control_reg;
- volatile u32 *mii_data_reg;
- u32 timedout = 20;
- u32 mii_control;
-
- #ifdef CONFIG_BCM5222_DUAL_PHY
- /* First time we probe, it's for the mac0 phy.
- * Since we haven't determined yet that we have a dual phy,
- * aup->mii->mii_control_reg won't be setup and we'll
- * default to the else statement.
- * By the time we probe for the mac1 phy, the mii_control_reg
- * will be setup to be the address of the mac0 phy control since
- * both phys are controlled through mac0.
- */
- if (aup->mii && aup->mii->mii_control_reg) {
- mii_control_reg = aup->mii->mii_control_reg;
- mii_data_reg = aup->mii->mii_data_reg;
- }
- else if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) {
- /* assume both phys are controlled through mac0 */
- mii_control_reg = au_macs[0]->mii->mii_control_reg;
- mii_data_reg = au_macs[0]->mii->mii_data_reg;
- }
- else
- #endif
- {
- /* default control and data reg addresses */
- mii_control_reg = &aup->mac->mii_control;
- mii_data_reg = &aup->mac->mii_data;
- }
-
- while (*mii_control_reg & MAC_MII_BUSY) {
- mdelay(1);
- if (--timedout == 0) {
- printk(KERN_ERR "%s: read_MII busy timeout!!\n",
- dev->name);
- return -1;
- }
- }
-
- mii_control = MAC_SET_MII_SELECT_REG(reg) |
- MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_READ;
-
- *mii_control_reg = mii_control;
-
- timedout = 20;
- while (*mii_control_reg & MAC_MII_BUSY) {
- mdelay(1);
- if (--timedout == 0) {
- 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_id, int reg, u16 value)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- volatile u32 *mii_control_reg;
- volatile u32 *mii_data_reg;
- u32 timedout = 20;
- u32 mii_control;
-
- #ifdef CONFIG_BCM5222_DUAL_PHY
- if (aup->mii && aup->mii->mii_control_reg) {
- mii_control_reg = aup->mii->mii_control_reg;
- mii_data_reg = aup->mii->mii_data_reg;
- }
- else if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) {
- /* assume both phys are controlled through mac0 */
- mii_control_reg = au_macs[0]->mii->mii_control_reg;
- mii_data_reg = au_macs[0]->mii->mii_data_reg;
- }
- else
- #endif
- {
- /* default control and data reg addresses */
- mii_control_reg = &aup->mac->mii_control;
- mii_data_reg = &aup->mac->mii_data;
- }
-
- while (*mii_control_reg & MAC_MII_BUSY) {
- mdelay(1);
- if (--timedout == 0) {
- printk(KERN_ERR "%s: mdio_write busy timeout!!\n",
- dev->name);
- return;
- }
- }
-
- mii_control = MAC_SET_MII_SELECT_REG(reg) |
- MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_WRITE;
-
- *mii_data_reg = value;
- *mii_control_reg = mii_control;
-}
-
-
-static void dump_mii(struct net_device *dev, int phy_id)
-{
- int i, val;
-
- for (i = 0; i < 7; i++) {
- if ((val = mdio_read(dev, phy_id, i)) >= 0)
- printk("%s: MII Reg %d=%x\n", dev->name, i, val);
- }
- for (i = 16; i < 25; i++) {
- if ((val = mdio_read(dev, phy_id, i)) >= 0)
- printk("%s: MII Reg %d=%x\n", dev->name, i, val);
- }
-}
-
-static int mii_probe (struct net_device * dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- int phy_addr;
-#ifdef CONFIG_MIPS_BOSPORUS
- int phy_found=0;
-#endif
-
- /* search for total of 32 possible mii phy addresses */
- for (phy_addr = 0; phy_addr < 32; phy_addr++) {
- u16 mii_status;
- u16 phy_id0, phy_id1;
- int i;
-
- #ifdef CONFIG_BCM5222_DUAL_PHY
- /* Mask the already found phy, try next one */
- if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) {
- if (au_macs[0]->phy_addr == phy_addr)
- continue;
- }
- #endif
-
- mii_status = mdio_read(dev, phy_addr, MII_STATUS);
- if (mii_status == 0xffff || mii_status == 0x0000)
- /* the mii is not accessable, try next one */
- continue;
-
- phy_id0 = mdio_read(dev, phy_addr, MII_PHY_ID0);
- phy_id1 = mdio_read(dev, phy_addr, MII_PHY_ID1);
-
- /* search our mii table for the current mii */
- for (i = 0; mii_chip_table[i].phy_id1; i++) {
- if (phy_id0 == mii_chip_table[i].phy_id0 &&
- phy_id1 == mii_chip_table[i].phy_id1) {
- struct mii_phy * mii_phy = aup->mii;
-
- printk(KERN_INFO "%s: %s at phy address %d\n",
- dev->name, mii_chip_table[i].name,
- phy_addr);
-#ifdef CONFIG_MIPS_BOSPORUS
- phy_found = 1;
-#endif
- mii_phy->chip_info = mii_chip_table+i;
- aup->phy_addr = phy_addr;
- aup->want_autoneg = 1;
- aup->phy_ops = mii_chip_table[i].phy_ops;
- aup->phy_ops->phy_init(dev,phy_addr);
-
- // Check for dual-phy and then store required
- // values and set indicators. We need to do
- // this now since mdio_{read,write} need the
- // control and data register addresses.
- #ifdef CONFIG_BCM5222_DUAL_PHY
- if ( mii_chip_table[i].dual_phy) {
-
- /* assume both phys are controlled
- * through MAC0. Board specific? */
-
- /* sanity check */
- if (!au_macs[0] || !au_macs[0]->mii)
- return -1;
- aup->mii->mii_control_reg = (u32 *)
- &au_macs[0]->mac->mii_control;
- aup->mii->mii_data_reg = (u32 *)
- &au_macs[0]->mac->mii_data;
- }
- #endif
- goto found;
- }
- }
- }
-found:
-
-#ifdef CONFIG_MIPS_BOSPORUS
- /* This is a workaround for the Micrel/Kendin 5 port switch
- The second MAC doesn't see a PHY connected... so we need to
- trick it into thinking we have one.
-
- If this kernel is run on another Au1500 development board
- the stub will be found as well as the actual PHY. However,
- the last found PHY will be used... usually at Addr 31 (Db1500).
- */
- if ( (!phy_found) )
- {
- u16 phy_id0, phy_id1;
- int i;
+ hard_stop(dev);
- phy_id0 = 0x1234;
- phy_id1 = 0x5678;
-
- /* search our mii table for the current mii */
- for (i = 0; mii_chip_table[i].phy_id1; i++) {
- if (phy_id0 == mii_chip_table[i].phy_id0 &&
- phy_id1 == mii_chip_table[i].phy_id1) {
- struct mii_phy * mii_phy;
-
- printk(KERN_INFO "%s: %s at phy address %d\n",
- dev->name, mii_chip_table[i].name,
- phy_addr);
- mii_phy = kmalloc(sizeof(struct mii_phy),
- GFP_KERNEL);
- if (mii_phy) {
- mii_phy->chip_info = mii_chip_table+i;
- aup->phy_addr = phy_addr;
- mii_phy->next = aup->mii;
- aup->phy_ops =
- mii_chip_table[i].phy_ops;
- aup->mii = mii_phy;
- aup->phy_ops->phy_init(dev,phy_addr);
- } else {
- printk(KERN_ERR "%s: out of memory\n",
- dev->name);
- return -1;
- }
- mii_phy->chip_info = mii_chip_table+i;
- aup->phy_addr = phy_addr;
- aup->phy_ops = mii_chip_table[i].phy_ops;
- aup->phy_ops->phy_init(dev,phy_addr);
- break;
- }
- }
- }
- if (aup->mac_id == 0) {
- /* the Bosporus phy responds to addresses 0-5 but
- * 5 is the correct one.
- */
- aup->phy_addr = 5;
- }
-#endif
+ *aup->enable = MAC_EN_CLOCK_ENABLE;
+ au_sync_delay(2);
+ *aup->enable = 0;
+ au_sync_delay(2);
- if (aup->mii->chip_info == NULL) {
- printk(KERN_ERR "%s: Au1x No MII transceivers found!\n",
- dev->name);
- return -1;
+ aup->tx_full = 0;
+ for (i = 0; i < NUM_RX_DMA; i++) {
+ /* reset control bits */
+ aup->rx_dma_ring[i]->buff_stat &= ~0xf;
}
-
- printk(KERN_INFO "%s: Using %s as default\n",
- dev->name, aup->mii->chip_info->name);
-
- return 0;
-}
-
-
-/*
- * Buffer allocation/deallocation routines. The buffer descriptor returned
- * 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)
-{
- db_dest_t *pDB;
- pDB = aup->pDBfree;
-
- if (pDB) {
- aup->pDBfree = pDB->pnext;
+ for (i = 0; i < NUM_TX_DMA; i++) {
+ /* reset control bits */
+ aup->tx_dma_ring[i]->buff_stat &= ~0xf;
}
- return pDB;
-}
-void ReleaseDB(struct au1000_private *aup, db_dest_t *pDB)
-{
- db_dest_t *pDBfree = aup->pDBfree;
- if (pDBfree)
- pDBfree->pnext = pDB;
- aup->pDBfree = pDB;
-}
-
-static void enable_rx_tx(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
-
- if (au1000_debug > 4)
- printk(KERN_INFO "%s: enable_rx_tx\n", dev->name);
-
- aup->mac->control |= (MAC_RX_ENABLE | MAC_TX_ENABLE);
- au_sync_delay(10);
-}
-
-static void hard_stop(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ aup->mac_enabled = 0;
- if (au1000_debug > 4)
- printk(KERN_INFO "%s: hard stop\n", dev->name);
-
- aup->mac->control &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE);
- au_sync_delay(10);
}
-
static void reset_mac(struct net_device *dev)
{
- int i;
- u32 flags;
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *const aup = netdev_priv(dev);
+ unsigned long flags;
- if (au1000_debug > 4)
- printk(KERN_INFO "%s: reset mac, aup %x\n",
- dev->name, (unsigned)aup);
+ if (au1000_debug > 4)
+ printk(KERN_INFO "%s: reset mac, aup %x\n",
+ dev->name, (unsigned)aup);
spin_lock_irqsave(&aup->lock, flags);
- if (aup->timer.function == &au1000_timer) {/* check if timer initted */
- del_timer(&aup->timer);
- }
- hard_stop(dev);
- #ifdef CONFIG_BCM5222_DUAL_PHY
- if (aup->mac_id != 0) {
- #endif
- /* If BCM5222, we can't leave MAC0 in reset because then
- * we can't access the dual phy for ETH1 */
- *aup->enable = MAC_EN_CLOCK_ENABLE;
- au_sync_delay(2);
- *aup->enable = 0;
- au_sync_delay(2);
- #ifdef CONFIG_BCM5222_DUAL_PHY
- }
- #endif
- aup->tx_full = 0;
- for (i = 0; i < NUM_RX_DMA; i++) {
- /* reset control bits */
- aup->rx_dma_ring[i]->buff_stat &= ~0xf;
- }
- for (i = 0; i < NUM_TX_DMA; i++) {
- /* reset control bits */
- aup->tx_dma_ring[i]->buff_stat &= ~0xf;
- }
+ reset_mac_unlocked (dev);
+
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 struct {
- int port;
u32 base_addr;
u32 macen_addr;
int irq;
struct net_device *dev;
-} iflist[2];
-
-static int num_ifs;
-
-/*
- * Setup the base address and interupt 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.
- */
-static int __init au1000_init_module(void)
-{
- struct cpuinfo_mips *c = ¤t_cpu_data;
- int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4);
- struct net_device *dev;
- int i, found_one = 0;
-
- switch (c->cputype) {
+} iflist[2] = {
#ifdef CONFIG_SOC_AU1000
- case CPU_AU1000:
- num_ifs = 2 - ni;
- iflist[0].base_addr = AU1000_ETH0_BASE;
- iflist[1].base_addr = AU1000_ETH1_BASE;
- iflist[0].macen_addr = AU1000_MAC0_ENABLE;
- iflist[1].macen_addr = AU1000_MAC1_ENABLE;
- iflist[0].irq = AU1000_MAC0_DMA_INT;
- iflist[1].irq = AU1000_MAC1_DMA_INT;
- break;
+ {AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT},
+ {AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT}
#endif
#ifdef CONFIG_SOC_AU1100
- case CPU_AU1100:
- num_ifs = 1 - ni;
- iflist[0].base_addr = AU1100_ETH0_BASE;
- iflist[0].macen_addr = AU1100_MAC0_ENABLE;
- iflist[0].irq = AU1100_MAC0_DMA_INT;
- break;
+ {AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT}
#endif
#ifdef CONFIG_SOC_AU1500
- case CPU_AU1500:
- num_ifs = 2 - ni;
- iflist[0].base_addr = AU1500_ETH0_BASE;
- iflist[1].base_addr = AU1500_ETH1_BASE;
- iflist[0].macen_addr = AU1500_MAC0_ENABLE;
- iflist[1].macen_addr = AU1500_MAC1_ENABLE;
- iflist[0].irq = AU1500_MAC0_DMA_INT;
- iflist[1].irq = AU1500_MAC1_DMA_INT;
- break;
+ {AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT},
+ {AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT}
#endif
#ifdef CONFIG_SOC_AU1550
- case CPU_AU1550:
- num_ifs = 2 - ni;
- iflist[0].base_addr = AU1550_ETH0_BASE;
- iflist[1].base_addr = AU1550_ETH1_BASE;
- iflist[0].macen_addr = AU1550_MAC0_ENABLE;
- iflist[1].macen_addr = AU1550_MAC1_ENABLE;
- iflist[0].irq = AU1550_MAC0_DMA_INT;
- iflist[1].irq = AU1550_MAC1_DMA_INT;
- break;
+ {AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT},
+ {AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT}
#endif
- default:
- num_ifs = 0;
- }
- for(i = 0; i < num_ifs; i++) {
- dev = au1000_probe(iflist[i].base_addr, iflist[i].irq, i);
- iflist[i].dev = dev;
- if (dev)
- found_one++;
- }
- if (!found_one)
- return -ENODEV;
- return 0;
-}
-
-static int au1000_setup_aneg(struct net_device *dev, u32 advertise)
-{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
- u16 ctl, adv;
-
- /* Setup standard advertise */
- adv = mdio_read(dev, aup->phy_addr, MII_ADVERTISE);
- adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
- if (advertise & ADVERTISED_10baseT_Half)
- adv |= ADVERTISE_10HALF;
- if (advertise & ADVERTISED_10baseT_Full)
- adv |= ADVERTISE_10FULL;
- if (advertise & ADVERTISED_100baseT_Half)
- adv |= ADVERTISE_100HALF;
- if (advertise & ADVERTISED_100baseT_Full)
- adv |= ADVERTISE_100FULL;
- mdio_write(dev, aup->phy_addr, MII_ADVERTISE, adv);
-
- /* Start/Restart aneg */
- ctl = mdio_read(dev, aup->phy_addr, MII_BMCR);
- ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
- mdio_write(dev, aup->phy_addr, MII_BMCR, ctl);
-
- return 0;
-}
-
-static int au1000_setup_forced(struct net_device *dev, int speed, int fd)
-{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
- u16 ctl;
-
- ctl = mdio_read(dev, aup->phy_addr, MII_BMCR);
- ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_ANENABLE);
-
- /* First reset the PHY */
- mdio_write(dev, aup->phy_addr, MII_BMCR, ctl | BMCR_RESET);
-
- /* Select speed & duplex */
- switch (speed) {
- case SPEED_10:
- break;
- case SPEED_100:
- ctl |= BMCR_SPEED100;
- break;
- case SPEED_1000:
- default:
- return -EINVAL;
- }
- if (fd == DUPLEX_FULL)
- ctl |= BMCR_FULLDPLX;
- mdio_write(dev, aup->phy_addr, MII_BMCR, ctl);
+};
- return 0;
-}
+static int num_ifs;
+/*
+ * ethtool operations
+ */
-static void
-au1000_start_link(struct net_device *dev, struct ethtool_cmd *cmd)
+static int au1000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
- u32 advertise;
- int autoneg;
- int forced_speed;
- int forced_duplex;
-
- /* Default advertise */
- advertise = GENMII_DEFAULT_ADVERTISE;
- autoneg = aup->want_autoneg;
- forced_speed = SPEED_100;
- forced_duplex = DUPLEX_FULL;
-
- /* Setup link parameters */
- if (cmd) {
- if (cmd->autoneg == AUTONEG_ENABLE) {
- advertise = cmd->advertising;
- autoneg = 1;
- } else {
- autoneg = 0;
-
- forced_speed = cmd->speed;
- forced_duplex = cmd->duplex;
- }
- }
+ struct au1000_private *aup = netdev_priv(dev);
- /* Configure PHY & start aneg */
- aup->want_autoneg = autoneg;
- if (autoneg)
- au1000_setup_aneg(dev, advertise);
- else
- au1000_setup_forced(dev, forced_speed, forced_duplex);
- mod_timer(&aup->timer, jiffies + HZ);
-}
+ if (aup->phy_dev)
+ return phy_ethtool_gset(aup->phy_dev, cmd);
-static int au1000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
- u16 link, speed;
-
- cmd->supported = GENMII_DEFAULT_FEATURES;
- cmd->advertising = GENMII_DEFAULT_ADVERTISE;
- cmd->port = PORT_MII;
- cmd->transceiver = XCVR_EXTERNAL;
- cmd->phy_address = aup->phy_addr;
- spin_lock_irq(&aup->lock);
- cmd->autoneg = aup->want_autoneg;
- aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed);
- if ((speed == IF_PORT_100BASETX) || (speed == IF_PORT_100BASEFX))
- cmd->speed = SPEED_100;
- else if (speed == IF_PORT_10BASET)
- cmd->speed = SPEED_10;
- if (link && (dev->if_port == IF_PORT_100BASEFX))
- cmd->duplex = DUPLEX_FULL;
- else
- cmd->duplex = DUPLEX_HALF;
- spin_unlock_irq(&aup->lock);
- return 0;
+ return -EINVAL;
}
static int au1000_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
- unsigned long features = GENMII_DEFAULT_FEATURES;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- if (cmd->autoneg != AUTONEG_ENABLE && cmd->autoneg != AUTONEG_DISABLE)
- return -EINVAL;
- if (cmd->autoneg == AUTONEG_ENABLE && cmd->advertising == 0)
- return -EINVAL;
- if (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL)
- return -EINVAL;
- if (cmd->autoneg == AUTONEG_DISABLE)
- switch (cmd->speed) {
- case SPEED_10:
- if (cmd->duplex == DUPLEX_HALF &&
- (features & SUPPORTED_10baseT_Half) == 0)
- return -EINVAL;
- if (cmd->duplex == DUPLEX_FULL &&
- (features & SUPPORTED_10baseT_Full) == 0)
- return -EINVAL;
- break;
- case SPEED_100:
- if (cmd->duplex == DUPLEX_HALF &&
- (features & SUPPORTED_100baseT_Half) == 0)
- return -EINVAL;
- if (cmd->duplex == DUPLEX_FULL &&
- (features & SUPPORTED_100baseT_Full) == 0)
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
- else if ((features & SUPPORTED_Autoneg) == 0)
- return -EINVAL;
-
- spin_lock_irq(&aup->lock);
- au1000_start_link(dev, cmd);
- spin_unlock_irq(&aup->lock);
- return 0;
-}
+ struct au1000_private *aup = netdev_priv(dev);
-static int au1000_nway_reset(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
- if (!aup->want_autoneg)
- return -EINVAL;
- spin_lock_irq(&aup->lock);
- au1000_start_link(dev, NULL);
- spin_unlock_irq(&aup->lock);
- return 0;
+ if (aup->phy_dev)
+ return phy_ethtool_sset(aup->phy_dev, cmd);
+
+ return -EINVAL;
}
static void
au1000_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
strcpy(info->driver, DRV_NAME);
strcpy(info->version, DRV_VERSION);
info->regdump_len = 0;
}
-static u32 au1000_get_link(struct net_device *dev)
-{
- return netif_carrier_ok(dev);
-}
-
-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,
- .nway_reset = au1000_nway_reset,
- .get_link = au1000_get_link
+ .get_link = ethtool_op_get_link,
};
-static struct net_device *
-au1000_probe(u32 ioaddr, int irq, int port_num)
+
+/*
+ * Initialize the interface.
+ *
+ * When the device powers up, the clocks are disabled and the
+ * mac is in reset state. When the interface is closed, we
+ * do the same -- reset the device and disable the clocks to
+ * conserve power. Thus, whenever au1000_init() is called,
+ * the device should already be in reset state.
+ */
+static int au1000_init(struct net_device *dev)
{
- static unsigned version_printed = 0;
- struct au1000_private *aup = NULL;
- struct net_device *dev = NULL;
- db_dest_t *pDB, *pDBfree;
- char *pmac, *argptr;
- char ethaddr[6];
- int i, err;
+ struct au1000_private *aup = netdev_priv(dev);
+ unsigned long flags;
+ int i;
+ u32 control;
- if (!request_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE, "Au1x00 ENET"))
- return NULL;
-
- if (version_printed++ == 0)
- printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR);
-
- dev = alloc_etherdev(sizeof(struct au1000_private));
- if (!dev) {
- printk (KERN_ERR "au1000 eth: alloc_etherdev failed\n");
- return NULL;
- }
-
- if ((err = register_netdev(dev))) {
- printk(KERN_ERR "Au1x_eth Cannot register net device err %d\n",
- err);
- free_netdev(dev);
- return NULL;
- }
-
- printk("%s: Au1x Ethernet found at 0x%x, irq %d\n",
- dev->name, ioaddr, irq);
-
- aup = dev->priv;
-
- /* Allocate the data buffers */
- /* Snooping works fine with eth on all au1xxx */
- aup->vaddr = (u32)dma_alloc_noncoherent(NULL,
- MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS),
- &aup->dma_addr,
- 0);
- if (!aup->vaddr) {
- free_netdev(dev);
- release_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE);
- return NULL;
- }
-
- /* aup->mac is the base address of the MAC's registers */
- aup->mac = (volatile mac_reg_t *)((unsigned long)ioaddr);
- /* Setup some variables for quick register address access */
- if (ioaddr == iflist[0].base_addr)
- {
- /* check env variables first */
- if (!get_ethernet_addr(ethaddr)) {
- 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);
- /* use the hard coded mac addresses */
- } else {
- str2eaddr(ethaddr, pmac + strlen("ethaddr="));
- memcpy(au1000_mac_addr, ethaddr,
- sizeof(au1000_mac_addr));
- }
- }
- aup->enable = (volatile u32 *)
- ((unsigned long)iflist[0].macen_addr);
- memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
- setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
- aup->mac_id = 0;
- au_macs[0] = aup;
- }
- else
- if (ioaddr == iflist[1].base_addr)
- {
- aup->enable = (volatile u32 *)
- ((unsigned long)iflist[1].macen_addr);
- memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
- dev->dev_addr[4] += 0x10;
- setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
- aup->mac_id = 1;
- au_macs[1] = aup;
- }
- else
- {
- printk(KERN_ERR "%s: bad ioaddr\n", dev->name);
- }
-
- /* bring the device out of reset, otherwise probing the mii
- * will hang */
- *aup->enable = MAC_EN_CLOCK_ENABLE;
- au_sync_delay(2);
- *aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 |
- MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE;
- au_sync_delay(2);
-
- aup->mii = kmalloc(sizeof(struct mii_phy), GFP_KERNEL);
- if (!aup->mii) {
- printk(KERN_ERR "%s: out of memory\n", dev->name);
- goto err_out;
- }
- aup->mii->mii_control_reg = 0;
- aup->mii->mii_data_reg = 0;
-
- if (mii_probe(dev) != 0) {
- goto err_out;
- }
-
- pDBfree = NULL;
- /* setup the data buffer descriptors and attach a buffer to each one */
- pDB = aup->db;
- for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) {
- pDB->pnext = pDBfree;
- pDBfree = pDB;
- pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i);
- pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr);
- pDB++;
- }
- aup->pDBfree = pDBfree;
-
- for (i = 0; i < NUM_RX_DMA; i++) {
- pDB = GetFreeDB(aup);
- if (!pDB) {
- goto err_out;
- }
- aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
- aup->rx_db_inuse[i] = pDB;
- }
- for (i = 0; i < NUM_TX_DMA; i++) {
- pDB = GetFreeDB(aup);
- if (!pDB) {
- goto err_out;
- }
- aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
- aup->tx_dma_ring[i]->len = 0;
- aup->tx_db_inuse[i] = pDB;
- }
-
- spin_lock_init(&aup->lock);
- dev->base_addr = ioaddr;
- 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->set_config = &au1000_set_config;
- dev->tx_timeout = au1000_tx_timeout;
- dev->watchdog_timeo = ETH_TX_TIMEOUT;
-
- /*
- * 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:
- /* here we should have a valid dev plus aup-> register addresses
- * so we can reset the mac properly.*/
- reset_mac(dev);
- if (aup->mii)
- kfree(aup->mii);
- for (i = 0; i < NUM_RX_DMA; i++) {
- if (aup->rx_db_inuse[i])
- ReleaseDB(aup, aup->rx_db_inuse[i]);
- }
- for (i = 0; i < NUM_TX_DMA; i++) {
- if (aup->tx_db_inuse[i])
- ReleaseDB(aup, aup->tx_db_inuse[i]);
- }
- dma_free_noncoherent(NULL,
- MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS),
- (void *)aup->vaddr,
- aup->dma_addr);
- unregister_netdev(dev);
- free_netdev(dev);
- release_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE);
- return NULL;
-}
-
-/*
- * Initialize the interface.
- *
- * When the device powers up, the clocks are disabled and the
- * mac is in reset state. When the interface is closed, we
- * do the same -- reset the device and disable the clocks to
- * conserve power. Thus, whenever au1000_init() is called,
- * the device should already be in reset state.
- */
-static int au1000_init(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- u32 flags;
- int i;
- u32 control;
- u16 link, speed;
-
- if (au1000_debug > 4)
+ if (au1000_debug > 4)
printk("%s: au1000_init\n", dev->name);
- spin_lock_irqsave(&aup->lock, flags);
-
/* bring the device out of reset */
- *aup->enable = MAC_EN_CLOCK_ENABLE;
- au_sync_delay(2);
- *aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 |
- MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE;
- au_sync_delay(20);
+ enable_mac(dev, 1);
+
+ spin_lock_irqsave(&aup->lock, flags);
aup->mac->control = 0;
aup->tx_head = (aup->tx_dma_ring[0]->buff_stat & 0xC) >> 2;
}
au_sync();
- aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed);
- control = MAC_DISABLE_RX_OWN | MAC_RX_ENABLE | MAC_TX_ENABLE;
+ control = MAC_RX_ENABLE | MAC_TX_ENABLE;
#ifndef CONFIG_CPU_LITTLE_ENDIAN
control |= MAC_BIG_ENDIAN;
#endif
- if (link && (dev->if_port == IF_PORT_100BASEFX)) {
+ if (aup->phy_dev) {
+ if (aup->phy_dev->link && (DUPLEX_FULL == aup->phy_dev->duplex))
+ control |= MAC_FULL_DUPLEX;
+ else
+ control |= MAC_DISABLE_RX_OWN;
+ } else { /* PHY-less op, assume full-duplex */
control |= MAC_FULL_DUPLEX;
}
- /* fix for startup without cable */
- if (!link)
- dev->flags &= ~IFF_RUNNING;
-
aup->mac->control = control;
aup->mac->vlan1_tag = 0x8100; /* activate vlan support */
au_sync();
return 0;
}
-static void au1000_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- unsigned char if_port;
- u16 link, speed;
-
- if (!dev) {
- /* fatal error, don't restart the timer */
- printk(KERN_ERR "au1000_timer error: NULL dev\n");
- return;
- }
-
- if_port = dev->if_port;
- if (aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed) == 0) {
- if (link) {
- if (!(dev->flags & IFF_RUNNING)) {
- netif_carrier_on(dev);
- dev->flags |= IFF_RUNNING;
- printk(KERN_INFO "%s: link up\n", dev->name);
- }
- }
- else {
- if (dev->flags & IFF_RUNNING) {
- netif_carrier_off(dev);
- dev->flags &= ~IFF_RUNNING;
- dev->if_port = 0;
- printk(KERN_INFO "%s: link down\n", dev->name);
- }
- }
- }
-
- if (link && (dev->if_port != if_port) &&
- (dev->if_port != IF_PORT_UNKNOWN)) {
- hard_stop(dev);
- if (dev->if_port == IF_PORT_100BASEFX) {
- printk(KERN_INFO "%s: going to full duplex\n",
- dev->name);
- aup->mac->control |= MAC_FULL_DUPLEX;
- au_sync_delay(1);
- }
- else {
- aup->mac->control &= ~MAC_FULL_DUPLEX;
- au_sync_delay(1);
- }
- enable_rx_tx(dev);
- }
-
- aup->timer.expires = RUN_AT((1*HZ));
- aup->timer.data = (unsigned long)dev;
- aup->timer.function = &au1000_timer; /* timer handler */
- add_timer(&aup->timer);
-
-}
-
-static int au1000_open(struct net_device *dev)
-{
- int retval;
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
-
- if (au1000_debug > 4)
- printk("%s: open: dev=%p\n", dev->name, dev);
-
- if ((retval = au1000_init(dev))) {
- printk(KERN_ERR "%s: error in au1000_init\n", dev->name);
- free_irq(dev->irq, dev);
- return retval;
- }
- netif_start_queue(dev);
-
- if ((retval = request_irq(dev->irq, &au1000_interrupt, 0,
- dev->name, dev))) {
- printk(KERN_ERR "%s: unable to get IRQ %d\n",
- dev->name, dev->irq);
- return retval;
- }
-
- init_timer(&aup->timer); /* used in ioctl() */
- aup->timer.expires = RUN_AT((3*HZ));
- aup->timer.data = (unsigned long)dev;
- aup->timer.function = &au1000_timer; /* timer handler */
- add_timer(&aup->timer);
-
- if (au1000_debug > 4)
- printk("%s: open: Initialization done.\n", dev->name);
-
- return 0;
-}
-
-static int au1000_close(struct net_device *dev)
-{
- u32 flags;
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
-
- if (au1000_debug > 4)
- printk("%s: close: dev=%p\n", dev->name, dev);
-
- reset_mac(dev);
-
- spin_lock_irqsave(&aup->lock, flags);
-
- /* stop the device */
- netif_stop_queue(dev);
-
- /* disable the interrupt */
- free_irq(dev->irq, dev);
- spin_unlock_irqrestore(&aup->lock, flags);
-
- return 0;
-}
-
-static void __exit au1000_cleanup_module(void)
-{
- int i, j;
- struct net_device *dev;
- struct au1000_private *aup;
-
- for (i = 0; i < num_ifs; i++) {
- dev = iflist[i].dev;
- if (dev) {
- aup = (struct au1000_private *) dev->priv;
- unregister_netdev(dev);
- if (aup->mii)
- kfree(aup->mii);
- for (j = 0; j < NUM_RX_DMA; j++) {
- if (aup->rx_db_inuse[j])
- ReleaseDB(aup, aup->rx_db_inuse[j]);
- }
- for (j = 0; j < NUM_TX_DMA; j++) {
- if (aup->tx_db_inuse[j])
- ReleaseDB(aup, aup->tx_db_inuse[j]);
- }
- dma_free_noncoherent(NULL,
- MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS),
- (void *)aup->vaddr,
- aup->dma_addr);
- free_netdev(dev);
- release_mem_region(CPHYSADDR(iflist[i].base_addr), MAC_IOSIZE);
- }
- }
-}
-
-
-static inline void
-update_tx_stats(struct net_device *dev, u32 status, u32 pkt_len)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- struct net_device_stats *ps = &aup->stats;
-
- ps->tx_packets++;
- ps->tx_bytes += pkt_len;
-
- if (status & TX_FRAME_ABORTED) {
- if (dev->if_port == IF_PORT_100BASEFX) {
- if (status & (TX_JAB_TIMEOUT | TX_UNDERRUN)) {
- /* any other tx errors are only valid
- * in half duplex mode */
- ps->tx_errors++;
- ps->tx_aborted_errors++;
- }
- }
- else {
- ps->tx_errors++;
- ps->tx_aborted_errors++;
- if (status & (TX_NO_CARRIER | TX_LOSS_CARRIER))
- ps->tx_carrier_errors++;
- }
- }
-}
-
-
-/*
- * Called from the interrupt service routine to acknowledge
- * the TX DONE bits. This is a must if the irq is setup as
- * edge triggered.
- */
-static void au1000_tx_ack(struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- volatile tx_dma_t *ptxd;
-
- ptxd = aup->tx_dma_ring[aup->tx_tail];
-
- while (ptxd->buff_stat & TX_T_DONE) {
- update_tx_stats(dev, ptxd->status, ptxd->len & 0x3ff);
- ptxd->buff_stat &= ~TX_T_DONE;
- ptxd->len = 0;
- au_sync();
-
- aup->tx_tail = (aup->tx_tail + 1) & (NUM_TX_DMA - 1);
- ptxd = aup->tx_dma_ring[aup->tx_tail];
-
- if (aup->tx_full) {
- aup->tx_full = 0;
- netif_wake_queue(dev);
- }
- }
-}
-
-
-/*
- * Au1000 transmit routine.
- */
-static int au1000_tx(struct sk_buff *skb, struct net_device *dev)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- 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,
- skb->data, aup->tx_head);
-
- ptxd = aup->tx_dma_ring[aup->tx_head];
- buff_stat = ptxd->buff_stat;
- if (buff_stat & TX_DMA_ENABLE) {
- /* We've wrapped around and the transmitter is still busy */
- netif_stop_queue(dev);
- aup->tx_full = 1;
- return 1;
- }
- else if (buff_stat & TX_T_DONE) {
- update_tx_stats(dev, ptxd->status, ptxd->len & 0x3ff);
- ptxd->len = 0;
- }
-
- if (aup->tx_full) {
- aup->tx_full = 0;
- netif_wake_queue(dev);
- }
-
- pDB = aup->tx_db_inuse[aup->tx_head];
- memcpy((void *)pDB->vaddr, skb->data, skb->len);
- if (skb->len < ETH_ZLEN) {
- for (i=skb->len; i<ETH_ZLEN; i++) {
- ((char *)pDB->vaddr)[i] = 0;
- }
- ptxd->len = ETH_ZLEN;
- }
- else
- ptxd->len = skb->len;
-
- ptxd->buff_stat = pDB->dma_addr | TX_DMA_ENABLE;
- au_sync();
- dev_kfree_skb(skb);
- aup->tx_head = (aup->tx_head + 1) & (NUM_TX_DMA - 1);
- dev->trans_start = jiffies;
- return 0;
-}
-
-
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 au1000_private *aup = netdev_priv(dev);
+ 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;
}
*/
static int au1000_rx(struct net_device *dev)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
struct sk_buff *skb;
volatile rx_dma_t *prxd;
u32 buff_stat, status;
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");
aup->rx_head = (aup->rx_head + 1) & (NUM_RX_DMA - 1);
au_sync();
- /* next descriptor */
- prxd = aup->rx_dma_ring[aup->rx_head];
- buff_stat = prxd->buff_stat;
- dev->last_rx = jiffies;
+ /* next descriptor */
+ prxd = aup->rx_dma_ring[aup->rx_head];
+ buff_stat = prxd->buff_stat;
+ }
+ return 0;
+}
+
+static void update_tx_stats(struct net_device *dev, u32 status)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+ struct net_device_stats *ps = &dev->stats;
+
+ if (status & TX_FRAME_ABORTED) {
+ if (!aup->phy_dev || (DUPLEX_FULL == aup->phy_dev->duplex)) {
+ if (status & (TX_JAB_TIMEOUT | TX_UNDERRUN)) {
+ /* any other tx errors are only valid
+ * in half duplex mode */
+ ps->tx_errors++;
+ ps->tx_aborted_errors++;
+ }
+ }
+ else {
+ ps->tx_errors++;
+ ps->tx_aborted_errors++;
+ if (status & (TX_NO_CARRIER | TX_LOSS_CARRIER))
+ ps->tx_carrier_errors++;
+ }
+ }
+}
+
+/*
+ * Called from the interrupt service routine to acknowledge
+ * the TX DONE bits. This is a must if the irq is setup as
+ * edge triggered.
+ */
+static void au1000_tx_ack(struct net_device *dev)
+{
+ struct au1000_private *aup = netdev_priv(dev);
+ volatile tx_dma_t *ptxd;
+
+ ptxd = aup->tx_dma_ring[aup->tx_tail];
+
+ while (ptxd->buff_stat & TX_T_DONE) {
+ update_tx_stats(dev, ptxd->status);
+ ptxd->buff_stat &= ~TX_T_DONE;
+ ptxd->len = 0;
+ au_sync();
+
+ aup->tx_tail = (aup->tx_tail + 1) & (NUM_TX_DMA - 1);
+ ptxd = aup->tx_dma_ring[aup->tx_tail];
+
+ if (aup->tx_full) {
+ aup->tx_full = 0;
+ netif_wake_queue(dev);
+ }
+ }
+}
+
+/*
+ * Au1000 interrupt service routine.
+ */
+static irqreturn_t au1000_interrupt(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+
+ /* Handle RX interrupts first to minimize chance of overrun */
+
+ au1000_rx(dev);
+ au1000_tx_ack(dev);
+ return IRQ_RETVAL(1);
+}
+
+static int au1000_open(struct net_device *dev)
+{
+ int retval;
+ struct au1000_private *aup = netdev_priv(dev);
+
+ if (au1000_debug > 4)
+ printk("%s: open: dev=%p\n", dev->name, dev);
+
+ if ((retval = request_irq(dev->irq, &au1000_interrupt, 0,
+ dev->name, dev))) {
+ printk(KERN_ERR "%s: unable to get IRQ %d\n",
+ dev->name, dev->irq);
+ return retval;
+ }
+
+ if ((retval = au1000_init(dev))) {
+ printk(KERN_ERR "%s: error in au1000_init\n", dev->name);
+ free_irq(dev->irq, dev);
+ return retval;
+ }
+
+ if (aup->phy_dev) {
+ /* cause the PHY state machine to schedule a link state check */
+ aup->phy_dev->state = PHY_CHANGELINK;
+ phy_start(aup->phy_dev);
}
+
+ netif_start_queue(dev);
+
+ if (au1000_debug > 4)
+ printk("%s: open: Initialization done.\n", dev->name);
+
return 0;
}
+static int au1000_close(struct net_device *dev)
+{
+ unsigned long flags;
+ struct au1000_private *const aup = netdev_priv(dev);
+
+ if (au1000_debug > 4)
+ printk("%s: close: dev=%p\n", dev->name, dev);
+
+ if (aup->phy_dev)
+ phy_stop(aup->phy_dev);
+
+ spin_lock_irqsave(&aup->lock, flags);
+
+ reset_mac_unlocked (dev);
+
+ /* stop the device */
+ netif_stop_queue(dev);
+
+ /* disable the interrupt */
+ free_irq(dev->irq, dev);
+ spin_unlock_irqrestore(&aup->lock, flags);
+
+ return 0;
+}
/*
- * Au1000 interrupt service routine.
+ * Au1000 transmit routine.
*/
-static irqreturn_t au1000_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static int au1000_tx(struct sk_buff *skb, struct net_device *dev)
{
- struct net_device *dev = (struct net_device *) dev_id;
+ struct au1000_private *aup = netdev_priv(dev);
+ 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,
+ skb->data, aup->tx_head);
+
+ ptxd = aup->tx_dma_ring[aup->tx_head];
+ buff_stat = ptxd->buff_stat;
+ if (buff_stat & TX_DMA_ENABLE) {
+ /* We've wrapped around and the transmitter is still busy */
+ netif_stop_queue(dev);
+ aup->tx_full = 1;
+ return 1;
+ }
+ else if (buff_stat & TX_T_DONE) {
+ update_tx_stats(dev, ptxd->status);
+ ptxd->len = 0;
+ }
- if (dev == NULL) {
- printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name);
- return IRQ_RETVAL(1);
+ if (aup->tx_full) {
+ aup->tx_full = 0;
+ netif_wake_queue(dev);
}
- /* Handle RX interrupts first to minimize chance of overrun */
+ pDB = aup->tx_db_inuse[aup->tx_head];
+ skb_copy_from_linear_data(skb, pDB->vaddr, skb->len);
+ if (skb->len < ETH_ZLEN) {
+ for (i=skb->len; i<ETH_ZLEN; i++) {
+ ((char *)pDB->vaddr)[i] = 0;
+ }
+ ptxd->len = ETH_ZLEN;
+ }
+ else
+ ptxd->len = skb->len;
- au1000_rx(dev);
- au1000_tx_ack(dev);
- return IRQ_RETVAL(1);
-}
+ ps->tx_packets++;
+ ps->tx_bytes += ptxd->len;
+ ptxd->buff_stat = pDB->dma_addr | TX_DMA_ENABLE;
+ au_sync();
+ dev_kfree_skb(skb);
+ aup->tx_head = (aup->tx_head + 1) & (NUM_TX_DMA - 1);
+ dev->trans_start = jiffies;
+ return 0;
+}
/*
* The Tx ring has been full longer than the watchdog timeout
netif_wake_queue(dev);
}
-
-static unsigned const ethernet_polynomial = 0x04c11db7U;
-static inline u32 ether_crc(int length, unsigned char *data)
-{
- int crc = -1;
-
- while(--length >= 0) {
- unsigned char current_octet = *data++;
- int bit;
- for (bit = 0; bit < 8; bit++, current_octet >>= 1)
- crc = (crc << 1) ^
- ((crc < 0) ^ (current_octet & 1) ?
- ethernet_polynomial : 0);
- }
- return crc;
-}
-
-static void set_rx_mode(struct net_device *dev)
+static void au1000_multicast_list(struct net_device *dev)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *aup = netdev_priv(dev);
- if (au1000_debug > 4)
- printk("%s: set_rx_mode: flags=%x\n", dev->name, dev->flags);
+ if (au1000_debug > 4)
+ printk("%s: au1000_multicast_list: 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];
}
}
-
static int au1000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
- struct au1000_private *aup = (struct au1000_private *)dev->priv;
- u16 *data = (u16 *)&rq->ifr_ifru;
-
- switch(cmd) {
- case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */
- case SIOCGMIIPHY:
- if (!netif_running(dev)) return -EINVAL;
- data[0] = aup->phy_addr;
- case SIOCDEVPRIVATE+1: /* Read the specified MII register. */
- case SIOCGMIIREG:
- data[3] = mdio_read(dev, data[0], data[1]);
- return 0;
- case SIOCDEVPRIVATE+2: /* Write the specified MII register */
- case SIOCSMIIREG:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- mdio_write(dev, data[0], data[1],data[2]);
- return 0;
- default:
- return -EOPNOTSUPP;
- }
+ struct au1000_private *aup = netdev_priv(dev);
+
+ if (!netif_running(dev)) return -EINVAL;
+
+ if (!aup->phy_dev) return -EINVAL; // PHY not controllable
+ return phy_mii_ioctl(aup->phy_dev, if_mii(rq), cmd);
}
+static const struct net_device_ops au1000_netdev_ops = {
+ .ndo_open = au1000_open,
+ .ndo_stop = au1000_close,
+ .ndo_start_xmit = au1000_tx,
+ .ndo_set_multicast_list = au1000_multicast_list,
+ .ndo_do_ioctl = au1000_ioctl,
+ .ndo_tx_timeout = au1000_tx_timeout,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = eth_change_mtu,
+};
-static int au1000_set_config(struct net_device *dev, struct ifmap *map)
+static struct net_device * au1000_probe(int port_num)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- u16 control;
+ static unsigned version_printed = 0;
+ struct au1000_private *aup = NULL;
+ struct net_device *dev = NULL;
+ db_dest_t *pDB, *pDBfree;
+ char ethaddr[6];
+ int irq, i, err;
+ u32 base, macen;
+
+ if (port_num >= NUM_ETH_INTERFACES)
+ return NULL;
+
+ base = CPHYSADDR(iflist[port_num].base_addr );
+ macen = CPHYSADDR(iflist[port_num].macen_addr);
+ irq = iflist[port_num].irq;
+
+ if (!request_mem_region( base, MAC_IOSIZE, "Au1x00 ENET") ||
+ !request_mem_region(macen, 4, "Au1x00 ENET"))
+ return NULL;
+
+ if (version_printed++ == 0)
+ printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR);
- if (au1000_debug > 4) {
- printk("%s: set_config called: dev->if_port %d map->port %x\n",
- dev->name, dev->if_port, map->port);
+ dev = alloc_etherdev(sizeof(struct au1000_private));
+ if (!dev) {
+ printk(KERN_ERR "%s: alloc_etherdev failed\n", DRV_NAME);
+ return NULL;
}
- switch(map->port){
- case IF_PORT_UNKNOWN: /* use auto here */
- printk(KERN_INFO "%s: config phy for aneg\n",
- dev->name);
- dev->if_port = map->port;
- /* Link Down: the timer will bring it up */
- netif_carrier_off(dev);
-
- /* read current control */
- control = mdio_read(dev, aup->phy_addr, MII_CONTROL);
- control &= ~(MII_CNTL_FDX | MII_CNTL_F100);
-
- /* enable auto negotiation and reset the negotiation */
- mdio_write(dev, aup->phy_addr, MII_CONTROL,
- control | MII_CNTL_AUTO |
- MII_CNTL_RST_AUTO);
+ if ((err = register_netdev(dev)) != 0) {
+ printk(KERN_ERR "%s: Cannot register net device, error %d\n",
+ DRV_NAME, err);
+ free_netdev(dev);
+ return NULL;
+ }
- break;
-
- case IF_PORT_10BASET: /* 10BaseT */
- printk(KERN_INFO "%s: config phy for 10BaseT\n",
- dev->name);
- dev->if_port = map->port;
-
- /* Link Down: the timer will bring it up */
- netif_carrier_off(dev);
-
- /* set Speed to 10Mbps, Half Duplex */
- control = mdio_read(dev, aup->phy_addr, MII_CONTROL);
- control &= ~(MII_CNTL_F100 | MII_CNTL_AUTO |
- MII_CNTL_FDX);
-
- /* disable auto negotiation and force 10M/HD mode*/
- mdio_write(dev, aup->phy_addr, MII_CONTROL, control);
- break;
-
- case IF_PORT_100BASET: /* 100BaseT */
- case IF_PORT_100BASETX: /* 100BaseTx */
- printk(KERN_INFO "%s: config phy for 100BaseTX\n",
- dev->name);
- dev->if_port = map->port;
-
- /* Link Down: the timer will bring it up */
- netif_carrier_off(dev);
-
- /* set Speed to 100Mbps, Half Duplex */
- /* disable auto negotiation and enable 100MBit Mode */
- control = mdio_read(dev, aup->phy_addr, MII_CONTROL);
- control &= ~(MII_CNTL_AUTO | MII_CNTL_FDX);
- control |= MII_CNTL_F100;
- mdio_write(dev, aup->phy_addr, MII_CONTROL, control);
- break;
-
- case IF_PORT_100BASEFX: /* 100BaseFx */
- printk(KERN_INFO "%s: config phy for 100BaseFX\n",
- dev->name);
- dev->if_port = map->port;
-
- /* Link Down: the timer will bring it up */
- netif_carrier_off(dev);
-
- /* set Speed to 100Mbps, Full Duplex */
- /* disable auto negotiation and enable 100MBit Mode */
- control = mdio_read(dev, aup->phy_addr, MII_CONTROL);
- control &= ~MII_CNTL_AUTO;
- control |= MII_CNTL_F100 | MII_CNTL_FDX;
- mdio_write(dev, aup->phy_addr, MII_CONTROL, control);
- break;
- case IF_PORT_10BASE2: /* 10Base2 */
- case IF_PORT_AUI: /* AUI */
- /* These Modes are not supported (are they?)*/
- printk(KERN_ERR "%s: 10Base2/AUI not supported",
- dev->name);
- return -EOPNOTSUPP;
- break;
-
- default:
- printk(KERN_ERR "%s: Invalid media selected",
- dev->name);
- return -EINVAL;
+ printk("%s: Au1xx0 Ethernet found at 0x%x, irq %d\n",
+ dev->name, base, irq);
+
+ aup = netdev_priv(dev);
+
+ 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 *
+ (NUM_TX_BUFFS + NUM_RX_BUFFS),
+ &aup->dma_addr, 0);
+ if (!aup->vaddr) {
+ free_netdev(dev);
+ release_mem_region( base, MAC_IOSIZE);
+ release_mem_region(macen, 4);
+ return NULL;
}
- return 0;
+
+ /* aup->mac is the base address of the MAC's registers */
+ aup->mac = (volatile mac_reg_t *)iflist[port_num].base_addr;
+
+ /* Setup some variables for quick register address access */
+ aup->enable = (volatile u32 *)iflist[port_num].macen_addr;
+ aup->mac_id = port_num;
+ au_macs[port_num] = aup;
+
+ if (port_num == 0) {
+ if (prom_get_ethernet_addr(ethaddr) == 0)
+ memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr));
+ else {
+ printk(KERN_INFO "%s: No MAC address found\n",
+ dev->name);
+ /* Use the hard coded MAC addresses */
+ }
+
+ setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
+ } else if (port_num == 1)
+ setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
+
+ /*
+ * Assign to the Ethernet ports two consecutive MAC addresses
+ * to match those that are printed on their stickers
+ */
+ memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
+ dev->dev_addr[5] += port_num;
+
+ *aup->enable = 0;
+ aup->mac_enabled = 0;
+
+ 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;
+
+ /* if known, set corresponding PHY IRQs */
+#if defined(AU1XXX_PHY_STATIC_CONFIG)
+# if defined(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->mac_id)
+ aup->mii_bus->irq[AU1XXX_PHY1_ADDR] = AU1XXX_PHY1_IRQ;
+# endif
+#endif
+ mdiobus_register(aup->mii_bus);
+
+ if (mii_probe(dev) != 0) {
+ goto err_out;
+ }
+
+ pDBfree = NULL;
+ /* setup the data buffer descriptors and attach a buffer to each one */
+ pDB = aup->db;
+ for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) {
+ pDB->pnext = pDBfree;
+ pDBfree = pDB;
+ pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i);
+ pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr);
+ pDB++;
+ }
+ aup->pDBfree = pDBfree;
+
+ for (i = 0; i < NUM_RX_DMA; i++) {
+ pDB = GetFreeDB(aup);
+ if (!pDB) {
+ goto err_out;
+ }
+ aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
+ aup->rx_db_inuse[i] = pDB;
+ }
+ for (i = 0; i < NUM_TX_DMA; i++) {
+ pDB = GetFreeDB(aup);
+ if (!pDB) {
+ goto err_out;
+ }
+ aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
+ aup->tx_dma_ring[i]->len = 0;
+ aup->tx_db_inuse[i] = pDB;
+ }
+
+ dev->base_addr = base;
+ dev->irq = irq;
+ dev->netdev_ops = &au1000_netdev_ops;
+ SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops);
+ dev->watchdog_timeo = ETH_TX_TIMEOUT;
+
+ /*
+ * 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);
+
+ for (i = 0; i < NUM_RX_DMA; i++) {
+ if (aup->rx_db_inuse[i])
+ ReleaseDB(aup, aup->rx_db_inuse[i]);
+ }
+ for (i = 0; i < NUM_TX_DMA; i++) {
+ if (aup->tx_db_inuse[i])
+ ReleaseDB(aup, aup->tx_db_inuse[i]);
+ }
+ dma_free_noncoherent(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
+ (void *)aup->vaddr, aup->dma_addr);
+ unregister_netdev(dev);
+ free_netdev(dev);
+ release_mem_region( base, MAC_IOSIZE);
+ release_mem_region(macen, 4);
+ return NULL;
}
-static struct net_device_stats *au1000_get_stats(struct net_device *dev)
+/*
+ * 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.
+ */
+static int __init au1000_init_module(void)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4);
+ struct net_device *dev;
+ int i, found_one = 0;
- if (au1000_debug > 4)
- printk("%s: au1000_get_stats: dev=%p\n", dev->name, dev);
+ num_ifs = NUM_ETH_INTERFACES - ni;
- if (netif_device_present(dev)) {
- return &aup->stats;
+ for(i = 0; i < num_ifs; i++) {
+ dev = au1000_probe(i);
+ iflist[i].dev = dev;
+ if (dev)
+ found_one++;
}
+ if (!found_one)
+ return -ENODEV;
return 0;
}
+static void __exit au1000_cleanup_module(void)
+{
+ int i, j;
+ struct net_device *dev;
+ struct au1000_private *aup;
+
+ for (i = 0; i < num_ifs; i++) {
+ dev = iflist[i].dev;
+ if (dev) {
+ aup = netdev_priv(dev);
+ 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]);
+ for (j = 0; j < NUM_TX_DMA; j++)
+ if (aup->tx_db_inuse[j])
+ ReleaseDB(aup, aup->tx_db_inuse[j]);
+ dma_free_noncoherent(NULL, MAX_BUF_SIZE *
+ (NUM_TX_BUFFS + NUM_RX_BUFFS),
+ (void *)aup->vaddr, aup->dma_addr);
+ release_mem_region(dev->base_addr, MAC_IOSIZE);
+ release_mem_region(CPHYSADDR(iflist[i].macen_addr), 4);
+ free_netdev(dev);
+ }
+ }
+}
+
module_init(au1000_init_module);
module_exit(au1000_cleanup_module);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff