fedora core 6 1.2949 + vserver 2.2.0
[linux-2.6.git] / drivers / net / sunbmac.c
index 100a4f7..18f8885 100644 (file)
@@ -22,9 +22,9 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
+#include <linux/bitops.h>
 
 #include <asm/auxio.h>
-#include <asm/bitops.h>
 #include <asm/byteorder.h>
 #include <asm/dma.h>
 #include <asm/idprom.h>
 
 #include "sunbmac.h"
 
-static char version[] __initdata =
-        "sunbmac.c:v2.0 24/Nov/03 David S. Miller (davem@redhat.com)\n";
+#define DRV_NAME       "sunbmac"
+#define DRV_VERSION    "2.0"
+#define DRV_RELDATE    "11/24/03"
+#define DRV_AUTHOR     "David S. Miller (davem@redhat.com)"
+
+static char version[] =
+       DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " " DRV_AUTHOR "\n";
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_AUTHOR);
+MODULE_DESCRIPTION("Sun BigMAC 100baseT ethernet driver");
+MODULE_LICENSE("GPL");
 
 #undef DEBUG_PROBE
 #undef DEBUG_TX
@@ -62,13 +72,11 @@ static char version[] __initdata =
 #define DIRQ(x)
 #endif
 
-static struct bigmac *root_bigmac_dev;
-
 #define DEFAULT_JAMSIZE    4 /* Toe jam */
 
 #define QEC_RESET_TRIES 200
 
-static int qec_global_reset(unsigned long gregs)
+static int qec_global_reset(void __iomem *gregs)
 {
        int tries = QEC_RESET_TRIES;
 
@@ -88,7 +96,7 @@ static int qec_global_reset(unsigned long gregs)
 
 static void qec_init(struct bigmac *bp)
 {
-       unsigned long gregs = bp->gregs;
+       void __iomem *gregs = bp->gregs;
        struct sbus_dev *qec_sdev = bp->qec_sdev;
        u8 bsizes = bp->bigmac_bursts;
        u32 regval;
@@ -117,7 +125,7 @@ static void qec_init(struct bigmac *bp)
 #define TX_RESET_TRIES     32
 #define RX_RESET_TRIES     32
 
-static void bigmac_tx_reset(unsigned long bregs)
+static void bigmac_tx_reset(void __iomem *bregs)
 {
        int tries = TX_RESET_TRIES;
 
@@ -137,7 +145,7 @@ static void bigmac_tx_reset(unsigned long bregs)
        }
 }
 
-static void bigmac_rx_reset(unsigned long bregs)
+static void bigmac_rx_reset(void __iomem *bregs)
 {
        int tries = RX_RESET_TRIES;
 
@@ -159,7 +167,7 @@ static void bigmac_stop(struct bigmac *bp)
        bigmac_rx_reset(bp->bregs);
 }
 
-static void bigmac_get_counters(struct bigmac *bp, unsigned long bregs)
+static void bigmac_get_counters(struct bigmac *bp, void __iomem *bregs)
 {
        struct net_device_stats *stats = &bp->enet_stats;
 
@@ -204,7 +212,8 @@ static void bigmac_init_rings(struct bigmac *bp, int from_irq)
 {
        struct bmac_init_block *bb = bp->bmac_block;
        struct net_device *dev = bp->dev;
-       int i, gfp_flags = GFP_KERNEL;
+       int i;
+       gfp_t gfp_flags = GFP_KERNEL;
 
        if (from_irq || in_interrupt())
                gfp_flags = GFP_ATOMIC;
@@ -244,7 +253,7 @@ static void bigmac_init_rings(struct bigmac *bp, int from_irq)
 #define MGMT_CLKON  (MGMT_PAL_INT_MDIO|MGMT_PAL_EXT_MDIO|MGMT_PAL_OENAB|MGMT_PAL_DCLOCK)
 #define MGMT_CLKOFF (MGMT_PAL_INT_MDIO|MGMT_PAL_EXT_MDIO|MGMT_PAL_OENAB)
 
-static void idle_transceiver(unsigned long tregs)
+static void idle_transceiver(void __iomem *tregs)
 {
        int i = 20;
 
@@ -256,7 +265,7 @@ static void idle_transceiver(unsigned long tregs)
        }
 }
 
-static void write_tcvr_bit(struct bigmac *bp, unsigned long tregs, int bit)
+static void write_tcvr_bit(struct bigmac *bp, void __iomem *tregs, int bit)
 {
        if (bp->tcvr_type == internal) {
                bit = (bit & 1) << 3;
@@ -279,7 +288,7 @@ static void write_tcvr_bit(struct bigmac *bp, unsigned long tregs, int bit)
        }
 }
 
-static int read_tcvr_bit(struct bigmac *bp, unsigned long tregs)
+static int read_tcvr_bit(struct bigmac *bp, void __iomem *tregs)
 {
        int retval = 0;
 
@@ -302,7 +311,7 @@ static int read_tcvr_bit(struct bigmac *bp, unsigned long tregs)
        return retval;
 }
 
-static int read_tcvr_bit2(struct bigmac *bp, unsigned long tregs)
+static int read_tcvr_bit2(struct bigmac *bp, void __iomem *tregs)
 {
        int retval = 0;
 
@@ -325,7 +334,7 @@ static int read_tcvr_bit2(struct bigmac *bp, unsigned long tregs)
 }
 
 static void put_tcvr_byte(struct bigmac *bp,
-                         unsigned long tregs,
+                         void __iomem *tregs,
                          unsigned int byte)
 {
        int shift = 4;
@@ -336,7 +345,7 @@ static void put_tcvr_byte(struct bigmac *bp,
        } while (shift >= 0);
 }
 
-static void bigmac_tcvr_write(struct bigmac *bp, unsigned long tregs,
+static void bigmac_tcvr_write(struct bigmac *bp, void __iomem *tregs,
                              int reg, unsigned short val)
 {
        int shift;
@@ -376,7 +385,7 @@ static void bigmac_tcvr_write(struct bigmac *bp, unsigned long tregs,
 }
 
 static unsigned short bigmac_tcvr_read(struct bigmac *bp,
-                                      unsigned long tregs,
+                                      void __iomem *tregs,
                                       int reg)
 {
        unsigned short retval = 0;
@@ -444,7 +453,7 @@ static unsigned short bigmac_tcvr_read(struct bigmac *bp,
 
 static void bigmac_tcvr_init(struct bigmac *bp)
 {
-       unsigned long tregs = bp->tregs;
+       void __iomem *tregs = bp->tregs;
        u32 mpal;
 
        idle_transceiver(tregs);
@@ -480,9 +489,9 @@ static void bigmac_tcvr_init(struct bigmac *bp)
        }
 }
 
-static int bigmac_init(struct bigmac *, int);
+static int bigmac_init_hw(struct bigmac *, int);
 
-static int try_next_permutation(struct bigmac *bp, unsigned long tregs)
+static int try_next_permutation(struct bigmac *bp, void __iomem *tregs)
 {
        if (bp->sw_bmcr & BMCR_SPEED100) {
                int timeout;
@@ -518,7 +527,7 @@ static int try_next_permutation(struct bigmac *bp, unsigned long tregs)
 static void bigmac_timer(unsigned long data)
 {
        struct bigmac *bp = (struct bigmac *) data;
-       unsigned long tregs = bp->tregs;
+       void __iomem *tregs = bp->tregs;
        int restart_timer = 0;
 
        bp->timer_ticks++;
@@ -540,7 +549,7 @@ static void bigmac_timer(unsigned long data)
                                if (ret == -1) {
                                        printk(KERN_ERR "%s: Link down, cable problem?\n",
                                               bp->dev->name);
-                                       ret = bigmac_init(bp, 0);
+                                       ret = bigmac_init_hw(bp, 0);
                                        if (ret) {
                                                printk(KERN_ERR "%s: Error, cannot re-init the "
                                                       "BigMAC.\n", bp->dev->name);
@@ -573,7 +582,7 @@ static void bigmac_timer(unsigned long data)
  */
 static void bigmac_begin_auto_negotiation(struct bigmac *bp)
 {
-       unsigned long tregs = bp->tregs;
+       void __iomem *tregs = bp->tregs;
        int timeout;
 
        /* Grab new software copies of PHY registers. */
@@ -610,11 +619,11 @@ static void bigmac_begin_auto_negotiation(struct bigmac *bp)
        add_timer(&bp->bigmac_timer);
 }
 
-static int bigmac_init(struct bigmac *bp, int from_irq)
+static int bigmac_init_hw(struct bigmac *bp, int from_irq)
 {
-       unsigned long gregs        = bp->gregs;
-       unsigned long cregs        = bp->creg;
-       unsigned long bregs        = bp->bregs;
+       void __iomem *gregs        = bp->gregs;
+       void __iomem *cregs        = bp->creg;
+       void __iomem *bregs        = bp->bregs;
        unsigned char *e = &bp->dev->dev_addr[0];
 
        /* Latch current counters into statistics. */
@@ -741,7 +750,7 @@ static void bigmac_is_medium_rare(struct bigmac *bp, u32 qec_status, u32 bmac_st
        }
 
        printk(" RESET\n");
-       bigmac_init(bp, 1);
+       bigmac_init_hw(bp, 1);
 }
 
 /* BigMAC transmit complete service routines. */
@@ -879,7 +888,7 @@ static void bigmac_rx(struct bigmac *bp)
                printk(KERN_NOTICE "%s: Memory squeeze, deferring packet.\n", bp->dev->name);
 }
 
-static irqreturn_t bigmac_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t bigmac_interrupt(int irq, void *dev_id)
 {
        struct bigmac *bp = (struct bigmac *) dev_id;
        u32 qec_status, bmac_status;
@@ -909,13 +918,13 @@ static int bigmac_open(struct net_device *dev)
        struct bigmac *bp = (struct bigmac *) dev->priv;
        int ret;
 
-       ret = request_irq(dev->irq, &bigmac_interrupt, SA_SHIRQ, dev->name, bp);
+       ret = request_irq(dev->irq, &bigmac_interrupt, IRQF_SHARED, dev->name, bp);
        if (ret) {
                printk(KERN_ERR "BIGMAC: Can't order irq %d to go.\n", dev->irq);
                return ret;
        }
        init_timer(&bp->bigmac_timer);
-       ret = bigmac_init(bp, 0);
+       ret = bigmac_init_hw(bp, 0);
        if (ret)
                free_irq(dev->irq, bp);
        return ret;
@@ -939,7 +948,7 @@ static void bigmac_tx_timeout(struct net_device *dev)
 {
        struct bigmac *bp = (struct bigmac *) dev->priv;
 
-       bigmac_init(bp, 0);
+       bigmac_init_hw(bp, 0);
        netif_wake_queue(dev);
 }
 
@@ -987,7 +996,7 @@ static struct net_device_stats *bigmac_get_stats(struct net_device *dev)
 static void bigmac_set_multicast(struct net_device *dev)
 {
        struct bigmac *bp = (struct bigmac *) dev->priv;
-       unsigned long bregs = bp->bregs;
+       void __iomem *bregs = bp->bregs;
        struct dev_mc_list *dmi = dev->mc_list;
        char *addrs;
        int i;
@@ -1062,7 +1071,7 @@ static u32 bigmac_get_link(struct net_device *dev)
        return (bp->sw_bmsr & BMSR_LSTATUS);
 }
 
-static struct ethtool_ops bigmac_ethtool_ops = {
+static const struct ethtool_ops bigmac_ethtool_ops = {
        .get_drvinfo            = bigmac_get_drvinfo,
        .get_link               = bigmac_get_link,
 };
@@ -1093,6 +1102,8 @@ static int __init bigmac_ether_init(struct sbus_dev *qec_sdev)
        bp->qec_sdev = qec_sdev;
        bp->bigmac_sdev = qec_sdev->child;
 
+       SET_NETDEV_DEV(dev, &bp->bigmac_sdev->ofdev.dev);
+
        spin_lock_init(&bp->lock);
 
        /* Verify the registers we expect, are actually there. */
@@ -1215,11 +1226,7 @@ static int __init bigmac_ether_init(struct sbus_dev *qec_sdev)
                goto fail_and_cleanup;
        }
 
-       /* Put us into the list of instances attached for later driver
-        * exit.
-        */
-       bp->next_module = root_bigmac_dev;
-       root_bigmac_dev = bp;
+       dev_set_drvdata(&bp->bigmac_sdev->ofdev.dev, bp);
 
        printk(KERN_INFO "%s: BigMAC 100baseT Ethernet ", dev->name);
        for (i = 0; i < 6; i++)
@@ -1255,70 +1262,68 @@ fail_and_cleanup:
 /* QEC can be the parent of either QuadEthernet or
  * a BigMAC.  We want the latter.
  */
-static int __init bigmac_match(struct sbus_dev *sdev)
+static int __devinit bigmac_sbus_probe(struct of_device *dev, const struct of_device_id *match)
 {
-       struct sbus_dev *child = sdev->child;
+       struct sbus_dev *sdev = to_sbus_device(&dev->dev);
+       struct device_node *dp = dev->node;
 
-       if (strcmp(sdev->prom_name, "qec") != 0)
-               return 0;
-
-       if (child == NULL)
-               return 0;
+       if (!strcmp(dp->name, "be"))
+               sdev = sdev->parent;
 
-       if (strcmp(child->prom_name, "be") != 0)
-               return 0;
-
-       return 1;
+       return bigmac_ether_init(sdev);
 }
 
-static int __init bigmac_probe(void)
+static int __devexit bigmac_sbus_remove(struct of_device *dev)
 {
-       struct sbus_bus *sbus;
-       struct sbus_dev *sdev = 0;
-       static int called;
-       int cards = 0, v;
-
-       root_bigmac_dev = NULL;
-
-       if (called)
-               return -ENODEV;
-       called++;
-
-       for_each_sbus(sbus) {
-               for_each_sbusdev(sdev, sbus) {
-                       if (bigmac_match(sdev)) {
-                               cards++;
-                               if ((v = bigmac_ether_init(sdev)))
-                                       return v;
-                       }
-               }
-       }
-       if (!cards)
-               return -ENODEV;
+       struct bigmac *bp = dev_get_drvdata(&dev->dev);
+       struct net_device *net_dev = bp->dev;
+
+       unregister_netdevice(net_dev);
+
+       sbus_iounmap(bp->gregs, GLOB_REG_SIZE);
+       sbus_iounmap(bp->creg, CREG_REG_SIZE);
+       sbus_iounmap(bp->bregs, BMAC_REG_SIZE);
+       sbus_iounmap(bp->tregs, TCVR_REG_SIZE);
+       sbus_free_consistent(bp->bigmac_sdev,
+                            PAGE_SIZE,
+                            bp->bmac_block,
+                            bp->bblock_dvma);
+
+       free_netdev(net_dev);
+
+       dev_set_drvdata(&dev->dev, NULL);
+
        return 0;
 }
 
-static void __exit bigmac_cleanup(void)
-{
-       while (root_bigmac_dev) {
-               struct bigmac *bp = root_bigmac_dev;
-               struct bigmac *bp_nxt = root_bigmac_dev->next_module;
+static struct of_device_id bigmac_sbus_match[] = {
+       {
+               .name = "qec",
+       },
+       {
+               .name = "be",
+       },
+       {},
+};
 
-               sbus_iounmap(bp->gregs, GLOB_REG_SIZE);
-               sbus_iounmap(bp->creg, CREG_REG_SIZE);
-               sbus_iounmap(bp->bregs, BMAC_REG_SIZE);
-               sbus_iounmap(bp->tregs, TCVR_REG_SIZE);
-               sbus_free_consistent(bp->bigmac_sdev,
-                                    PAGE_SIZE,
-                                    bp->bmac_block,
-                                    bp->bblock_dvma);
+MODULE_DEVICE_TABLE(of, bigmac_sbus_match);
 
-               unregister_netdev(bp->dev);
-               free_netdev(bp->dev);
-               root_bigmac_dev = bp_nxt;
-       }
+static struct of_platform_driver bigmac_sbus_driver = {
+       .name           = "sunbmac",
+       .match_table    = bigmac_sbus_match,
+       .probe          = bigmac_sbus_probe,
+       .remove         = __devexit_p(bigmac_sbus_remove),
+};
+
+static int __init bigmac_init(void)
+{
+       return of_register_driver(&bigmac_sbus_driver, &sbus_bus_type);
 }
 
-module_init(bigmac_probe);
-module_exit(bigmac_cleanup);
-MODULE_LICENSE("GPL");
+static void __exit bigmac_exit(void)
+{
+       of_unregister_driver(&bigmac_sbus_driver);
+}
+
+module_init(bigmac_init);
+module_exit(bigmac_exit);