/*
- * Alchemy Semi Au1000 ethernet driver
*
- * Copyright 2001 MontaVista Software Inc.
+ * Alchemy Au1x00 ethernet driver
+ *
+ * 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
+ * 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
*
+ * ########################################################################
+ *
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ *
*/
-#include <linux/config.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/in.h>
#include <linux/ioport.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/ethtool.h>
+#include <linux/mii.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/crc32.h>
-
+#include <linux/phy.h>
#include <asm/mipsregs.h>
#include <asm/irq.h>
-#include <asm/bitops.h>
#include <asm/io.h>
-#include <asm/au1000.h>
+#include <asm/processor.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/cpu.h>
#include "au1000_eth.h"
#ifdef AU1000_ETH_DEBUG
-static int au1000_debug = 10;
+static int au1000_debug = 5;
#else
static int au1000_debug = 3;
#endif
+#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_AUTHOR(DRV_AUTHOR);
+MODULE_DESCRIPTION(DRV_DESC);
+MODULE_LICENSE("GPL");
+
// prototypes
-static void *dma_alloc(size_t, dma_addr_t *);
-static void dma_free(void *, size_t);
static void hard_stop(struct net_device *);
static void enable_rx_tx(struct net_device *dev);
-static int __init au1000_probe1(long, int, int);
+static struct net_device * au1000_probe(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 irqreturn_t au1000_interrupt(int, void *);
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);
+static void au1000_adjust_link(struct net_device *);
+static void enable_mac(struct net_device *, int);
// externs
-extern void ack_rise_edge_irq(unsigned int);
extern int get_ethernet_addr(char *ethernet_addr);
-extern inline void str2eaddr(unsigned char *ea, unsigned char *str);
-extern inline unsigned char str2hexnum(unsigned char c);
-extern char * __init prom_getcmdline(void);
+extern void str2eaddr(unsigned char *ea, unsigned char *str);
+extern char * 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.
*/
-
-/*
- * Base address and interrupt of the Au1xxx ethernet macs
- */
-static struct {
- unsigned int port;
- int irq;
-} au1000_iflist[NUM_INTERFACES] = {
- {AU1000_ETH0_BASE, AU1000_ETH0_IRQ},
- {AU1000_ETH1_BASE, AU1000_ETH1_IRQ}
- },
- au1500_iflist[NUM_INTERFACES] = {
- {AU1500_ETH0_BASE, AU1000_ETH0_IRQ},
- {AU1500_ETH1_BASE, AU1000_ETH1_IRQ}
- },
- au1100_iflist[NUM_INTERFACES] = {
- {AU1000_ETH0_BASE, AU1000_ETH0_IRQ},
- {0, 0}
- };
-
-static char version[] __devinitdata =
- "au1000eth.c:1.0 ppopov@mvista.com\n";
-
/* These addresses are only used if yamon doesn't tell us what
* 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))
+struct au1000_private *au_macs[NUM_ETH_INTERFACES];
-// For reading/writing 32-bit words from/to DMA memory
-#define cpu_to_dma32 cpu_to_be32
-#define dma32_to_cpu be32_to_cpu
-
-
-/* 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.
*/
-int bcm_5201_init(struct net_device *dev, int phy_addr)
-{
- s16 data;
-
- /* Stop auto-negotiation */
- //printk("bcm_5201_init\n");
- 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);
-
- /* Enable TX LED instead of FDX */
- data = mdio_read(dev, phy_addr, MII_INT);
- data &= ~MII_FDX_LED;
- mdio_write(dev, phy_addr, MII_INT, data);
-
- /* Enable TX LED instead of FDX */
- data = mdio_read(dev, phy_addr, MII_INT);
- data &= ~MII_FDX_LED;
- mdio_write(dev, phy_addr, MII_INT, data);
-
- if (au1000_debug > 4) dump_mii(dev, phy_addr);
- return 0;
-}
-
-int bcm_5201_reset(struct net_device *dev, int phy_addr)
-{
- s16 mii_control, timeout;
-
- //printk("bcm_5201_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;
-}
-
-int
-bcm_5201_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
-{
- u16 mii_data;
- struct au1000_private *aup;
-
- 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;
- }
+/* autodetection defaults */
+#undef AU1XXX_PHY_SEARCH_HIGHEST_ADDR
+#define AU1XXX_PHY1_SEARCH_ON_MAC0
- }
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
- }
- return 0;
-}
-
-int lsi_80227_init(struct net_device *dev, int phy_addr)
-{
- if (au1000_debug > 4)
- printk("lsi_80227_init\n");
-
- /* restart auto-negotiation */
- mdio_write(dev, phy_addr, 0, 0x3200);
-
- mdelay(1);
-
- /* set up LEDs to correct display */
- mdio_write(dev, phy_addr, 17, 0xffc0);
-
- if (au1000_debug > 4)
- dump_mii(dev, phy_addr);
- return 0;
-}
-
-int lsi_80227_reset(struct net_device *dev, int phy_addr)
-{
- s16 mii_control, timeout;
-
- if (au1000_debug > 4) {
- printk("lsi_80227_reset\n");
- dump_mii(dev, phy_addr);
- }
-
- 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;
-}
-
-int
-lsi_80227_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
-{
- u16 mii_data;
- struct au1000_private *aup;
-
- 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_STAT);
- if (mii_data & MII_LSI_STAT_SPD) {
- if (mii_data & MII_LSI_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;
- }
-
- }
- else {
- *link = 0;
- *speed = 0;
- dev->if_port = IF_PORT_UNKNOWN;
- }
- return 0;
-}
-
-int am79c901_init(struct net_device *dev, int phy_addr)
-{
- printk("am79c901_init\n");
- return 0;
-}
-
-int am79c901_reset(struct net_device *dev, int phy_addr)
-{
- printk("am79c901_reset\n");
- return 0;
-}
-
-int
-am79c901_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed)
-{
- 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
+ */
-struct phy_ops bcm_5201_ops = {
- bcm_5201_init,
- bcm_5201_reset,
- bcm_5201_status,
-};
+#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
-struct phy_ops am79c901_ops = {
- am79c901_init,
- am79c901_reset,
- am79c901_status,
-};
+# define AU1XXX_PHY0_ADDR 5
+# define AU1XXX_PHY0_BUSID 0
+# undef AU1XXX_PHY0_IRQ
-struct phy_ops lsi_80227_ops = {
- lsi_80227_init,
- lsi_80227_reset,
- lsi_80227_status,
-};
+# undef AU1XXX_PHY1_ADDR
+# undef AU1XXX_PHY1_BUSID
+# undef AU1XXX_PHY1_IRQ
+#endif
-static struct mii_chip_info {
- const char * name;
- u16 phy_id0;
- u16 phy_id1;
- struct phy_ops *phy_ops;
-} mii_chip_table[] = {
- {"Broadcom BCM5201 10/100 BaseT PHY", 0x0040, 0x6212, &bcm_5201_ops },
- {"AMD 79C901 HomePNA PHY", 0x0000, 0x35c8, &am79c901_ops },
- {"LSI 80227 10/100 BaseT PHY", 0x0016, 0xf840, &lsi_80227_ops },
- {"Broadcom BCM5221 10/100 BaseT PHY", 0x0040, 0x61e4, &bcm_5201_ops },
- {0,},
-};
+#if defined(AU1XXX_PHY0_BUSID) && (AU1XXX_PHY0_BUSID > 0)
+# error MAC0-associated PHY attached 2nd MACs MII bus not supported yet
+#endif
-static int mdio_read(struct net_device *dev, int phy_id, int reg)
+/*
+ * MII operations
+ */
+static int 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;
+ volatile u32 *const mii_data_reg = &aup->mac->mii_data;
u32 timedout = 20;
u32 mii_control;
- while (aup->mac->mii_control & MAC_MII_BUSY) {
+ 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) |
- MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_READ;
+ mii_control = MAC_SET_MII_SELECT_REG(reg) |
+ MAC_SET_MII_SELECT_PHY(phy_addr) | MAC_MII_READ;
- aup->mac->mii_control = mii_control;
+ *mii_control_reg = mii_control;
timedout = 20;
- while (aup->mac->mii_control & MAC_MII_BUSY) {
+ 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)aup->mac->mii_data;
+ return (int)*mii_data_reg;
}
-static void mdio_write(struct net_device *dev, int phy_id, int reg, u16 value)
+static void 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;
+ volatile u32 *const mii_data_reg = &aup->mac->mii_data;
u32 timedout = 20;
u32 mii_control;
- while (aup->mac->mii_control & MAC_MII_BUSY) {
+ 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) |
- MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_WRITE;
+ 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)
+{
+ /* 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;
- aup->mac->mii_data = value;
- aup->mac->mii_control = mii_control;
+ enable_mac(dev, 0); /* make sure the MAC associated with this
+ * mii_bus is enabled */
+ return mdio_read(dev, phy_addr, regnum);
}
+static int 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);
+ return 0;
+}
-static void dump_mii(struct net_device *dev, int phy_id)
+static int mdiobus_reset(struct mii_bus *bus)
{
- int i, val;
+ struct net_device *const dev = bus->priv;
- 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);
- }
+ enable_mac(dev, 0); /* make sure the MAC associated with this
+ * mii_bus is enabled */
+ return 0;
}
-static int __init mii_probe (struct net_device * dev)
+static int mii_probe (struct net_device *dev)
{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ struct au1000_private *const aup = (struct au1000_private *) dev->priv;
+ 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;
- aup->mii = NULL;
+ /* 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
+ }
- /* 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;
+# 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");
- mii_status = mdio_read(dev, phy_addr, MII_STATUS);
- if (mii_status == 0xffff || mii_status == 0x0000)
- /* the mii is not accessible, 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;
-
- 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;
- mii_phy->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;
- }
- /* the current mii is on our mii_info_table,
- try next address */
- break;
- }
+ BUG_ON(!au_macs[0]);
+
+ /* 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];
+
+ if (!tmp_phydev)
+ continue; /* no PHY here... */
+
+ if (tmp_phydev->attached_dev)
+ continue; /* already claimed by MAC0 */
+
+ phydev = tmp_phydev;
+ break; /* found it */
}
}
+# endif /* defined(AU1XXX_PHY1_SEARCH_OTHER_BUS) */
- if (aup->mii == NULL) {
- printk(KERN_ERR "%s: No MII transceivers found!\n", dev->name);
+#endif /* defined(AU1XXX_PHY_STATIC_CONFIG) */
+ if (!phydev) {
+ printk (KERN_ERR DRV_NAME ":%s: no PHY found\n", dev->name);
return -1;
}
- /* use last PHY */
- aup->phy_addr = aup->mii->phy_addr;
- printk(KERN_INFO "%s: Using %s as default\n",
- dev->name, aup->mii->chip_info->name);
+ /* now we are supposed to have a proper phydev, to attach to... */
+ BUG_ON(!phydev);
+ BUG_ON(phydev->attached_dev);
+
+ 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);
+ return PTR_ERR(phydev);
+ }
+
+ /* 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, phydev->dev.bus_id, phydev->irq);
return 0;
}
/*
* 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)
if (pDB) {
aup->pDBfree = pDB->pnext;
}
- //printk("GetFreeDB: %x\n", pDB);
return pDB;
}
aup->pDBfree = pDB;
}
-
-/*
- DMA memory allocation, derived from pci_alloc_consistent.
- However, the Au1000 data cache is coherent (when programmed
- so), therefore we return KSEG0 address, not KSEG1.
-*/
-static void *dma_alloc(size_t size, dma_addr_t * dma_handle)
-{
- void *ret;
- int gfp = GFP_ATOMIC | GFP_DMA;
-
- ret = (void *) __get_free_pages(gfp, get_order(size));
-
- if (ret != NULL) {
- memset(ret, 0, size);
- *dma_handle = virt_to_bus(ret);
- ret = (void *)KSEG0ADDR(ret);
- }
- return ret;
-}
-
-
-static void dma_free(void *vaddr, size_t size)
-{
- vaddr = (void *)KSEG0ADDR(vaddr);
- free_pages((unsigned long) vaddr, get_order(size));
-}
-
-
static void enable_rx_tx(struct net_device *dev)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
au_sync_delay(10);
}
-
-static void reset_mac(struct net_device *dev)
+static void enable_mac(struct net_device *dev, int force_reset)
{
- u32 flags;
+ unsigned long flags;
struct au1000_private *aup = (struct au1000_private *) dev->priv;
- if (au1000_debug > 4)
- printk(KERN_INFO "%s: reset mac, aup %x\n",
- dev->name, (unsigned)aup);
-
spin_lock_irqsave(&aup->lock, flags);
- del_timer(&aup->timer);
+
+ 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);
+
+ aup->mac_enabled = 1;
+ }
+
+ spin_unlock_irqrestore(&aup->lock, flags);
+}
+
+static void reset_mac_unlocked(struct net_device *dev)
+{
+ struct au1000_private *const aup = (struct au1000_private *) dev->priv;
+ int i;
+
hard_stop(dev);
+
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
- *aup->enable = 0;
+ *aup->enable = 0;
au_sync_delay(2);
+
aup->tx_full = 0;
- spin_unlock_irqrestore(&aup->lock, flags);
+ 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;
+ }
+
+ aup->mac_enabled = 0;
+
}
+static void reset_mac(struct net_device *dev)
+{
+ struct au1000_private *const aup = (struct au1000_private *) dev->priv;
+ unsigned long flags;
+
+ if (au1000_debug > 4)
+ printk(KERN_INFO "%s: reset mac, aup %x\n",
+ dev->name, (unsigned)aup);
+
+ spin_lock_irqsave(&aup->lock, flags);
-/*
+ 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] =
+ for (i = 0; i < NUM_RX_DMA; 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] =
+ for (i = 0; i < NUM_TX_DMA; i++) {
+ aup->tx_dma_ring[i] =
(volatile tx_dma_t *) (tx_base + sizeof(tx_dma_t)*i);
}
}
+static struct {
+ u32 base_addr;
+ u32 macen_addr;
+ int irq;
+ struct net_device *dev;
+} iflist[2] = {
+#ifdef CONFIG_SOC_AU1000
+ {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
+ {AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT}
+#endif
+#ifdef CONFIG_SOC_AU1500
+ {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
+ {AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT},
+ {AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT}
+#endif
+};
+
+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)
{
- int i;
- int prid;
- int base_addr, irq;
-
- prid = read_c0_prid();
- for (i=0; i<NUM_INTERFACES; i++) {
- if ( (prid & 0xffff0000) == 0x00030000 ) {
- base_addr = au1000_iflist[i].port;
- irq = au1000_iflist[i].irq;
- } else if ( (prid & 0xffff0000) == 0x01030000 ) {
- base_addr = au1500_iflist[i].port;
- irq = au1500_iflist[i].irq;
- } else if ( (prid & 0xffff0000) == 0x02030000 ) {
- base_addr = au1100_iflist[i].port;
- irq = au1100_iflist[i].irq;
- } else {
- printk(KERN_ERR "au1000 eth: unknown Processor ID\n");
- return -ENODEV;
- }
- // check for valid entries, au1100 only has one entry
- if (base_addr && irq) {
- if (au1000_probe1(base_addr, irq, i) != 0)
- return -ENODEV;
- }
+ int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4);
+ struct net_device *dev;
+ int i, found_one = 0;
+
+ num_ifs = NUM_ETH_INTERFACES - ni;
+
+ 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 int __init
-au1000_probe1(long ioaddr, int irq, int port_num)
+/*
+ * ethtool operations
+ */
+
+static int au1000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct au1000_private *aup = (struct au1000_private *)dev->priv;
+
+ if (aup->phy_dev)
+ return phy_ethtool_gset(aup->phy_dev, cmd);
+
+ return -EINVAL;
+}
+
+static int au1000_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct au1000_private *aup = (struct au1000_private *)dev->priv;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ 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;
+
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ info->fw_version[0] = '\0';
+ sprintf(info->bus_info, "%s %d", DRV_NAME, aup->mac_id);
+ info->regdump_len = 0;
+}
+
+static const struct ethtool_ops au1000_ethtool_ops = {
+ .get_settings = au1000_get_settings,
+ .set_settings = au1000_set_settings,
+ .get_drvinfo = au1000_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+};
+
+static struct net_device * au1000_probe(int port_num)
{
- struct net_device *dev;
static unsigned version_printed = 0;
struct au1000_private *aup = NULL;
- int i, retval = 0;
+ struct net_device *dev = NULL;
db_dest_t *pDB, *pDBfree;
char *pmac, *argptr;
char ethaddr[6];
+ int irq, i, err;
+ u32 base, macen;
- if (!request_region(PHYSADDR(ioaddr), MAC_IOSIZE, "Au1000 ENET"))
- return -ENODEV;
+ if (port_num >= NUM_ETH_INTERFACES)
+ return NULL;
- if (version_printed++ == 0)
- printk(version);
+ 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;
- retval = -ENOMEM;
+ 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");
- goto out;
+ printk(KERN_ERR "%s: alloc_etherdev failed\n", DRV_NAME);
+ return NULL;
}
- SET_MODULE_OWNER(dev);
+ 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;
+ }
- printk("%s: Au1xxx ethernet found at 0x%lx, irq %d\n",
- dev->name, ioaddr, irq);
+ printk("%s: Au1xx0 Ethernet found at 0x%x, irq %d\n",
+ dev->name, base, irq);
aup = dev->priv;
/* Allocate the data buffers */
- aup->vaddr = (u32)dma_alloc(MAX_BUF_SIZE *
- (NUM_TX_BUFFS+NUM_RX_BUFFS), &aup->dma_addr);
- if (!aup->vaddr)
- goto out1;
+ /* 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;
+ }
/* aup->mac is the base address of the MAC's registers */
- aup->mac = (volatile mac_reg_t *)((unsigned long)ioaddr);
+ aup->mac = (volatile mac_reg_t *)iflist[port_num].base_addr;
+
/* Setup some variables for quick register address access */
- switch (ioaddr) {
- case AU1000_ETH0_BASE:
- case AU1500_ETH0_BASE:
- /* check env variables first */
- if (!get_ethernet_addr(ethaddr)) {
- memcpy(au1000_mac_addr, ethaddr, sizeof(dev->dev_addr));
- } else {
+ aup->enable = (volatile u32 *)iflist[port_num].macen_addr;
+ aup->mac_id = port_num;
+ au_macs[port_num] = aup;
+
+ if (port_num == 0) {
+ /* Check the environment variables first */
+ if (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);
- /* use the hard coded mac addresses */
- } else {
+ 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(dev->dev_addr));
+ memcpy(au1000_mac_addr, ethaddr,
+ sizeof(au1000_mac_addr));
}
}
- if (ioaddr == AU1000_ETH0_BASE)
- aup->enable = (volatile u32 *)
- ((unsigned long)AU1000_MAC0_ENABLE);
- else
- aup->enable = (volatile u32 *)
- ((unsigned long)AU1500_MAC0_ENABLE);
- memcpy(dev->dev_addr, au1000_mac_addr, sizeof(dev->dev_addr));
+
setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
- break;
- case AU1000_ETH1_BASE:
- case AU1500_ETH1_BASE:
- if (ioaddr == AU1000_ETH1_BASE)
- aup->enable = (volatile u32 *)
- ((unsigned long)AU1000_MAC1_ENABLE);
- else
- aup->enable = (volatile u32 *)
- ((unsigned long)AU1500_MAC1_ENABLE);
- memcpy(dev->dev_addr, au1000_mac_addr, sizeof(dev->dev_addr));
- dev->dev_addr[4] += 0x10;
+ } else if (port_num == 1)
setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
- break;
- default:
- printk(KERN_ERR "%s: bad ioaddr\n", dev->name);
- break;
- }
-
- aup->phy_addr = PHY_ADDRESS;
-
- /* 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);
+ /*
+ * 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.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);
+ 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->mii_bus.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;
+# endif
+#endif
+ mdiobus_register(&aup->mii_bus);
- retval = mii_probe(dev);
- if (retval)
- goto out2;
+ if (mii_probe(dev) != 0) {
+ goto err_out;
+ }
- retval = -EINVAL;
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++) {
+ 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);
}
aup->pDBfree = pDBfree;
- for (i=0; i<NUM_RX_DMA; i++) {
+ for (i = 0; i < NUM_RX_DMA; i++) {
pDB = GetFreeDB(aup);
- if (!pDB) goto out2;
+ 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++) {
+ for (i = 0; i < NUM_TX_DMA; i++) {
pDB = GetFreeDB(aup);
- if (!pDB) goto out2;
+ 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->base_addr = base;
dev->irq = irq;
dev->open = au1000_open;
dev->hard_start_xmit = au1000_tx;
dev->get_stats = au1000_get_stats;
dev->set_multicast_list = &set_rx_mode;
dev->do_ioctl = &au1000_ioctl;
- dev->set_config = &au1000_set_config;
+ 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);
- retval = register_netdev(dev);
- if (retval)
- goto out2;
- return 0;
+ return dev;
-out2:
- dma_free(aup->vaddr, MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS));
-out1:
+err_out:
+ /* 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);
-out:
- release_region(PHYSADDR(ioaddr), MAC_IOSIZE);
- printk(KERN_ERR "%s: au1000_probe1 failed. Returns %d\n",
- dev->name, retval);
- return retval;
+ release_mem_region( base, MAC_IOSIZE);
+ release_mem_region(macen, 4);
+ return NULL;
}
-
-/*
+/*
* Initialize the interface.
*
* When the device powers up, the clocks are disabled and the
u32 flags;
int i;
u32 control;
- u16 link, speed;
- if (au1000_debug > 4) printk("%s: au1000_init\n", dev->name);
-
- spin_lock_irqsave(&aup->lock, flags);
+ if (au1000_debug > 4)
+ printk("%s: au1000_init\n", dev->name);
/* 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;
aup->mac->mac_addr_low = dev->dev_addr[3]<<24 | dev->dev_addr[2]<<16 |
dev->dev_addr[1]<<8 | dev->dev_addr[0];
- for (i=0; i<NUM_RX_DMA; i++) {
+ for (i = 0; i < NUM_RX_DMA; i++) {
aup->rx_dma_ring[i]->buff_stat |= RX_DMA_ENABLE;
}
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;
}
+
aup->mac->control = control;
+ aup->mac->vlan1_tag = 0x8100; /* activate vlan support */
au_sync();
spin_unlock_irqrestore(&aup->lock, flags);
return 0;
}
-static void au1000_timer(unsigned long data)
+static void
+au1000_adjust_link(struct net_device *dev)
{
- struct net_device *dev = (struct net_device *)data;
struct au1000_private *aup = (struct au1000_private *) dev->priv;
- unsigned char if_port;
- u16 link, speed;
+ struct phy_device *phydev = aup->phy_dev;
+ unsigned long flags;
- if (!dev) {
- /* fatal error, don't restart the timer */
- printk(KERN_ERR "au1000_timer error: NULL dev\n");
- return;
- }
+ int status_change = 0;
- 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);
- }
+ BUG_ON(!aup->phy_dev);
+
+ 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;
}
+
+ aup->old_speed = phydev->speed;
+
+ status_change = 1;
}
- if (link && (dev->if_port != if_port) &&
- (dev->if_port != IF_PORT_UNKNOWN)) {
+ if (phydev->link && (aup->old_duplex != phydev->duplex)) {
+ // duplex mode changed
+
+ /* switching duplex mode requires to disable rx and tx! */
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);
- }
+
+ 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);
+
enable_rx_tx(dev);
+ aup->old_duplex = phydev->duplex;
+
+ status_change = 1;
}
- aup->timer.expires = RUN_AT((1*HZ));
- aup->timer.data = (unsigned long)dev;
- aup->timer.function = &au1000_timer; /* timer handler */
- add_timer(&aup->timer);
+ if(phydev->link != aup->old_link) {
+ // link state changed
+ if (phydev->link) // link went up
+ netif_schedule(dev);
+ else { // link went down
+ aup->old_speed = 0;
+ aup->old_duplex = -1;
+ }
+
+ aup->old_link = phydev->link;
+ status_change = 1;
+ }
+
+ spin_unlock_irqrestore(&aup->lock, flags);
+
+ 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);
+ }
}
static int au1000_open(struct net_device *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;
}
- 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;
+ 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);
}
- aup->timer.expires = RUN_AT((3*HZ));
- aup->timer.data = (unsigned long)dev;
- aup->timer.function = &au1000_timer; /* timer handler */
- add_timer(&aup->timer);
+ netif_start_queue(dev);
if (au1000_debug > 4)
printk("%s: open: Initialization done.\n", dev->name);
static int au1000_close(struct net_device *dev)
{
- u32 flags;
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
+ unsigned long flags;
+ struct au1000_private *const aup = (struct au1000_private *) dev->priv;
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 */
- if (netif_device_present(dev))
- netif_stop_queue(dev);
+ netif_stop_queue(dev);
/* disable the interrupt */
free_irq(dev->irq, dev);
spin_unlock_irqrestore(&aup->lock, flags);
- reset_mac(dev);
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);
+ 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);
+ }
+ }
+}
-static inline void
-update_tx_stats(struct net_device *dev, u32 status, u32 pkt_len)
+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;
- ps->tx_packets++;
- ps->tx_bytes += pkt_len;
-
if (status & TX_FRAME_ABORTED) {
- if (dev->if_port == IF_PORT_100BASEFX) {
+ 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 */
ptxd = aup->tx_dma_ring[aup->tx_tail];
while (ptxd->buff_stat & TX_T_DONE) {
- update_tx_stats(dev, ptxd->status, aup->tx_len[aup->tx_tail] & 0x3ff);
+ update_tx_stats(dev, ptxd->status);
ptxd->buff_stat &= ~TX_T_DONE;
- aup->tx_len[aup->tx_tail] = 0;
ptxd->len = 0;
au_sync();
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;
volatile tx_dma_t *ptxd;
u32 buff_stat;
db_dest_t *pDB;
int i;
- if (au1000_debug > 4)
- printk("%s: tx: aup %x len=%d, data=%p, head %d\n",
- dev->name, (unsigned)aup, skb->len,
+ 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];
return 1;
}
else if (buff_stat & TX_T_DONE) {
- update_tx_stats(dev, ptxd->status, aup->tx_len[aup->tx_head] & 0x3ff);
- aup->tx_len[aup->tx_head] = 0;
+ update_tx_stats(dev, ptxd->status);
ptxd->len = 0;
}
pDB = aup->tx_db_inuse[aup->tx_head];
memcpy((void *)pDB->vaddr, skb->data, skb->len);
- if (skb->len < MAC_MIN_PKT_SIZE) {
- for (i=skb->len; i<MAC_MIN_PKT_SIZE; i++) {
+ if (skb->len < ETH_ZLEN) {
+ for (i=skb->len; i<ETH_ZLEN; i++) {
((char *)pDB->vaddr)[i] = 0;
}
- aup->tx_len[aup->tx_head] = MAC_MIN_PKT_SIZE;
- ptxd->len = MAC_MIN_PKT_SIZE;
+ ptxd->len = ETH_ZLEN;
}
- else {
- aup->tx_len[aup->tx_head] = skb->len;
+ else
ptxd->len = skb->len;
- }
+
+ ps->tx_packets++;
+ ps->tx_bytes += ptxd->len;
+
ptxd->buff_stat = pDB->dma_addr | TX_DMA_ENABLE;
au_sync();
dev_kfree_skb(skb);
return 0;
}
-
static inline void update_rx_stats(struct net_device *dev, u32 status)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
if (status & RX_COLL)
ps->collisions++;
}
- else
+ else
ps->rx_bytes += status & RX_FRAME_LEN_MASK;
}
volatile rx_dma_t *prxd;
u32 buff_stat, status;
db_dest_t *pDB;
+ u32 frmlen;
- if (au1000_debug > 4)
+ if (au1000_debug > 5)
printk("%s: au1000_rx head %d\n", dev->name, aup->rx_head);
prxd = aup->rx_dma_ring[aup->rx_head];
if (!(status & RX_ERROR)) {
/* good frame */
- skb = dev_alloc_skb((status & RX_FRAME_LEN_MASK) + 2);
+ frmlen = (status & RX_FRAME_LEN_MASK);
+ frmlen -= 4; /* Remove FCS */
+ skb = dev_alloc_skb(frmlen + 2);
if (skb == NULL) {
printk(KERN_ERR
"%s: Memory squeeze, dropping packet.\n",
}
skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte IP header align */
- eth_copy_and_sum(skb, (unsigned char *)pDB->vaddr,
- status & RX_FRAME_LEN_MASK, 0);
- skb_put(skb, status & RX_FRAME_LEN_MASK);
+ eth_copy_and_sum(skb,
+ (unsigned char *)pDB->vaddr, frmlen, 0);
+ 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.
*/
-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_NONE;
+ return IRQ_RETVAL(1);
}
- au1000_tx_ack(dev);
+
+ /* Handle RX interrupts first to minimize chance of overrun */
+
au1000_rx(dev);
- return IRQ_HANDLED;
+ au1000_tx_ack(dev);
+ return IRQ_RETVAL(1);
}
{
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_le(ETH_ALEN, mclist->dmi_addr)>>26,
- mc_filter);
+ set_bit(ether_crc(ETH_ALEN, mclist->dmi_addr)>>26,
+ (long *)mc_filter);
}
aup->mac->multi_hash_high = mc_filter[1];
aup->mac->multi_hash_low = mc_filter[0];
}
}
-
static int au1000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
- u16 *data = (u16 *)&rq->ifr_data;
-
- /* fixme */
- switch(cmd) {
- case SIOCGMIIPHY: /* Get the address of the PHY in use. */
- data[0] = PHY_ADDRESS;
- return 0;
-
- case SIOCGMIIREG: /* Read the specified MII register. */
- //data[3] = mdio_read(ioaddr, data[0], data[1]);
- return 0;
-
- case SIOCSMIIREG: /* Write the specified MII register */
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- //mdio_write(ioaddr, data[0], data[1], data[2]);
- return 0;
-
- default:
- return -EOPNOTSUPP;
- }
-}
-
-
-static int au1000_set_config(struct net_device *dev, struct ifmap *map)
-{
- struct au1000_private *aup = (struct au1000_private *) dev->priv;
- u16 control;
+ struct au1000_private *aup = (struct au1000_private *)dev->priv;
- if (au1000_debug > 4) {
- printk("%s: set_config called: dev->if_port %d map->port %x\n",
- dev->name, dev->if_port, map->port);
- }
+ if (!netif_running(dev)) return -EINVAL;
- 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 (!aup->phy_dev) return -EINVAL; // PHY not controllable
- 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);
- printk("read control %x\n", 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;
- }
- return 0;
+ return phy_mii_ioctl(aup->phy_dev, if_mii(rq), cmd);
}
static struct net_device_stats *au1000_get_stats(struct net_device *dev)
git://git.onelab.eu / linux-2.6.git / blobdiff