Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux.git] / drivers / net / b44.c

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 3d247f3f4a3c375d285e10caf025fa6fc16f6d3b..59dce6aa08659cf6b8fce2ad876962d27eae7529 100644 (file)
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -128,6 +128,8 @@ static void b44_init_rings(struct b44 *);
 #define B44_FULL_RESET         1
 #define B44_FULL_RESET_SKIP_PHY        2
 #define B44_PARTIAL_RESET      3
+#define B44_CHIP_RESET_FULL    4
+#define B44_CHIP_RESET_PARTIAL 5
 
 static void b44_init_hw(struct b44 *, int);
 
@@ -146,7 +148,7 @@ static inline void b44_sync_dma_desc_for_device(struct ssb_device *sdev,
                                                unsigned long offset,
                                                enum dma_data_direction dir)
 {
-       dma_sync_single_range_for_device(sdev->dev, dma_base,
+       dma_sync_single_range_for_device(sdev->dma_dev, dma_base,
                                         offset & dma_desc_align_mask,
                                         dma_desc_sync_size, dir);
 }
@@ -156,7 +158,7 @@ static inline void b44_sync_dma_desc_for_cpu(struct ssb_device *sdev,
                                             unsigned long offset,
                                             enum dma_data_direction dir)
 {
-       dma_sync_single_range_for_cpu(sdev->dev, dma_base,
+       dma_sync_single_range_for_cpu(sdev->dma_dev, dma_base,
                                      offset & dma_desc_align_mask,
                                      dma_desc_sync_size, dir);
 }
@@ -611,7 +613,7 @@ static void b44_tx(struct b44 *bp)
 
                BUG_ON(skb == NULL);
 
-               dma_unmap_single(bp->sdev->dev,
+               dma_unmap_single(bp->sdev->dma_dev,
                                 rp->mapping,
                                 skb->len,
                                 DMA_TO_DEVICE);
@@ -651,7 +653,7 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked)
        if (skb == NULL)
                return -ENOMEM;
 
-       mapping = dma_map_single(bp->sdev->dev, skb->data,
+       mapping = dma_map_single(bp->sdev->dma_dev, skb->data,
                                 RX_PKT_BUF_SZ,
                                 DMA_FROM_DEVICE);
 
@@ -661,19 +663,19 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked)
                mapping + RX_PKT_BUF_SZ > DMA_30BIT_MASK) {
                /* Sigh... */
                if (!dma_mapping_error(mapping))
-                       dma_unmap_single(bp->sdev->dev, mapping,
+                       dma_unmap_single(bp->sdev->dma_dev, mapping,
                                        RX_PKT_BUF_SZ, DMA_FROM_DEVICE);
                dev_kfree_skb_any(skb);
                skb = __netdev_alloc_skb(bp->dev, RX_PKT_BUF_SZ, GFP_ATOMIC|GFP_DMA);
                if (skb == NULL)
                        return -ENOMEM;
-               mapping = dma_map_single(bp->sdev->dev, skb->data,
+               mapping = dma_map_single(bp->sdev->dma_dev, skb->data,
                                         RX_PKT_BUF_SZ,
                                         DMA_FROM_DEVICE);
                if (dma_mapping_error(mapping) ||
                        mapping + RX_PKT_BUF_SZ > DMA_30BIT_MASK) {
                        if (!dma_mapping_error(mapping))
-                               dma_unmap_single(bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
+                               dma_unmap_single(bp->sdev->dma_dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
                        dev_kfree_skb_any(skb);
                        return -ENOMEM;
                }
@@ -748,7 +750,7 @@ static void b44_recycle_rx(struct b44 *bp, int src_idx, u32 dest_idx_unmasked)
                                             dest_idx * sizeof(dest_desc),
                                             DMA_BIDIRECTIONAL);
 
-       dma_sync_single_for_device(bp->sdev->dev, le32_to_cpu(src_desc->addr),
+       dma_sync_single_for_device(bp->sdev->dma_dev, le32_to_cpu(src_desc->addr),
                                   RX_PKT_BUF_SZ,
                                   DMA_FROM_DEVICE);
 }
@@ -770,7 +772,7 @@ static int b44_rx(struct b44 *bp, int budget)
                struct rx_header *rh;
                u16 len;
 
-               dma_sync_single_for_cpu(bp->sdev->dev, map,
+               dma_sync_single_for_cpu(bp->sdev->dma_dev, map,
                                            RX_PKT_BUF_SZ,
                                            DMA_FROM_DEVICE);
                rh = (struct rx_header *) skb->data;
@@ -804,7 +806,7 @@ static int b44_rx(struct b44 *bp, int budget)
                        skb_size = b44_alloc_rx_skb(bp, cons, bp->rx_prod);
                        if (skb_size < 0)
                                goto drop_it;
-                       dma_unmap_single(bp->sdev->dev, map,
+                       dma_unmap_single(bp->sdev->dma_dev, map,
                                         skb_size, DMA_FROM_DEVICE);
                        /* Leave out rx_header */
                        skb_put(skb, len + RX_PKT_OFFSET);
@@ -964,24 +966,24 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev)
                goto err_out;
        }
 
-       mapping = dma_map_single(bp->sdev->dev, skb->data, len, DMA_TO_DEVICE);
+       mapping = dma_map_single(bp->sdev->dma_dev, skb->data, len, DMA_TO_DEVICE);
        if (dma_mapping_error(mapping) || mapping + len > DMA_30BIT_MASK) {
                struct sk_buff *bounce_skb;
 
                /* Chip can't handle DMA to/from >1GB, use bounce buffer */
                if (!dma_mapping_error(mapping))
-                       dma_unmap_single(bp->sdev->dev, mapping, len,
+                       dma_unmap_single(bp->sdev->dma_dev, mapping, len,
                                        DMA_TO_DEVICE);
 
                bounce_skb = __dev_alloc_skb(len, GFP_ATOMIC | GFP_DMA);
                if (!bounce_skb)
                        goto err_out;
 
-               mapping = dma_map_single(bp->sdev->dev, bounce_skb->data,
+               mapping = dma_map_single(bp->sdev->dma_dev, bounce_skb->data,
                                         len, DMA_TO_DEVICE);
                if (dma_mapping_error(mapping) || mapping + len > DMA_30BIT_MASK) {
                        if (!dma_mapping_error(mapping))
-                               dma_unmap_single(bp->sdev->dev, mapping,
+                               dma_unmap_single(bp->sdev->dma_dev, mapping,
                                         len, DMA_TO_DEVICE);
                        dev_kfree_skb_any(bounce_skb);
                        goto err_out;
@@ -1080,7 +1082,7 @@ static void b44_free_rings(struct b44 *bp)
 
                if (rp->skb == NULL)
                        continue;
-               dma_unmap_single(bp->sdev->dev, rp->mapping, RX_PKT_BUF_SZ,
+               dma_unmap_single(bp->sdev->dma_dev, rp->mapping, RX_PKT_BUF_SZ,
                                        DMA_FROM_DEVICE);
                dev_kfree_skb_any(rp->skb);
                rp->skb = NULL;
@@ -1092,7 +1094,7 @@ static void b44_free_rings(struct b44 *bp)
 
                if (rp->skb == NULL)
                        continue;
-               dma_unmap_single(bp->sdev->dev, rp->mapping, rp->skb->len,
+               dma_unmap_single(bp->sdev->dma_dev, rp->mapping, rp->skb->len,
                                        DMA_TO_DEVICE);
                dev_kfree_skb_any(rp->skb);
                rp->skb = NULL;
@@ -1115,12 +1117,12 @@ static void b44_init_rings(struct b44 *bp)
        memset(bp->tx_ring, 0, B44_TX_RING_BYTES);
 
        if (bp->flags & B44_FLAG_RX_RING_HACK)
-               dma_sync_single_for_device(bp->sdev->dev, bp->rx_ring_dma,
+               dma_sync_single_for_device(bp->sdev->dma_dev, bp->rx_ring_dma,
                                          DMA_TABLE_BYTES,
                                          DMA_BIDIRECTIONAL);
 
        if (bp->flags & B44_FLAG_TX_RING_HACK)
-               dma_sync_single_for_device(bp->sdev->dev, bp->tx_ring_dma,
+               dma_sync_single_for_device(bp->sdev->dma_dev, bp->tx_ring_dma,
                                          DMA_TABLE_BYTES,
                                          DMA_TO_DEVICE);
 
@@ -1142,24 +1144,24 @@ static void b44_free_consistent(struct b44 *bp)
        bp->tx_buffers = NULL;
        if (bp->rx_ring) {
                if (bp->flags & B44_FLAG_RX_RING_HACK) {
-                       dma_unmap_single(bp->sdev->dev, bp->rx_ring_dma,
+                       dma_unmap_single(bp->sdev->dma_dev, bp->rx_ring_dma,
                                        DMA_TABLE_BYTES,
                                        DMA_BIDIRECTIONAL);
                        kfree(bp->rx_ring);
                } else
-                       dma_free_coherent(bp->sdev->dev, DMA_TABLE_BYTES,
+                       dma_free_coherent(bp->sdev->dma_dev, DMA_TABLE_BYTES,
                                            bp->rx_ring, bp->rx_ring_dma);
                bp->rx_ring = NULL;
                bp->flags &= ~B44_FLAG_RX_RING_HACK;
        }
        if (bp->tx_ring) {
                if (bp->flags & B44_FLAG_TX_RING_HACK) {
-                       dma_unmap_single(bp->sdev->dev, bp->tx_ring_dma,
+                       dma_unmap_single(bp->sdev->dma_dev, bp->tx_ring_dma,
                                        DMA_TABLE_BYTES,
                                        DMA_TO_DEVICE);
                        kfree(bp->tx_ring);
                } else
-                       dma_free_coherent(bp->sdev->dev, DMA_TABLE_BYTES,
+                       dma_free_coherent(bp->sdev->dma_dev, DMA_TABLE_BYTES,
                                            bp->tx_ring, bp->tx_ring_dma);
                bp->tx_ring = NULL;
                bp->flags &= ~B44_FLAG_TX_RING_HACK;
@@ -1185,7 +1187,7 @@ static int b44_alloc_consistent(struct b44 *bp, gfp_t gfp)
                goto out_err;
 
        size = DMA_TABLE_BYTES;
-       bp->rx_ring = dma_alloc_coherent(bp->sdev->dev, size, &bp->rx_ring_dma, gfp);
+       bp->rx_ring = dma_alloc_coherent(bp->sdev->dma_dev, size, &bp->rx_ring_dma, gfp);
        if (!bp->rx_ring) {
                /* Allocation may have failed due to pci_alloc_consistent
                   insisting on use of GFP_DMA, which is more restrictive
@@ -1197,7 +1199,7 @@ static int b44_alloc_consistent(struct b44 *bp, gfp_t gfp)
                if (!rx_ring)
                        goto out_err;
 
-               rx_ring_dma = dma_map_single(bp->sdev->dev, rx_ring,
+               rx_ring_dma = dma_map_single(bp->sdev->dma_dev, rx_ring,
                                            DMA_TABLE_BYTES,
                                            DMA_BIDIRECTIONAL);
 
@@ -1212,7 +1214,7 @@ static int b44_alloc_consistent(struct b44 *bp, gfp_t gfp)
                bp->flags |= B44_FLAG_RX_RING_HACK;
        }
 
-       bp->tx_ring = dma_alloc_coherent(bp->sdev->dev, size, &bp->tx_ring_dma, gfp);
+       bp->tx_ring = dma_alloc_coherent(bp->sdev->dma_dev, size, &bp->tx_ring_dma, gfp);
        if (!bp->tx_ring) {
                /* Allocation may have failed due to dma_alloc_coherent
                   insisting on use of GFP_DMA, which is more restrictive
@@ -1224,7 +1226,7 @@ static int b44_alloc_consistent(struct b44 *bp, gfp_t gfp)
                if (!tx_ring)
                        goto out_err;
 
-               tx_ring_dma = dma_map_single(bp->sdev->dev, tx_ring,
+               tx_ring_dma = dma_map_single(bp->sdev->dma_dev, tx_ring,
                                            DMA_TABLE_BYTES,
                                            DMA_TO_DEVICE);
 
@@ -1259,7 +1261,7 @@ static void b44_clear_stats(struct b44 *bp)
 }
 
 /* bp->lock is held. */
-static void b44_chip_reset(struct b44 *bp)
+static void b44_chip_reset(struct b44 *bp, int reset_kind)
 {
        struct ssb_device *sdev = bp->sdev;
 
@@ -1281,6 +1283,13 @@ static void b44_chip_reset(struct b44 *bp)
        ssb_device_enable(bp->sdev, 0);
        b44_clear_stats(bp);
 
+       /*
+        * Don't enable PHY if we are doing a partial reset
+        * we are probably going to power down
+        */
+       if (reset_kind == B44_CHIP_RESET_PARTIAL)
+               return;
+
        switch (sdev->bus->bustype) {
        case SSB_BUSTYPE_SSB:
                bw32(bp, B44_MDIO_CTRL, (MDIO_CTRL_PREAMBLE |
@@ -1316,7 +1325,14 @@ static void b44_chip_reset(struct b44 *bp)
 static void b44_halt(struct b44 *bp)
 {
        b44_disable_ints(bp);
-       b44_chip_reset(bp);
+       /* reset PHY */
+       b44_phy_reset(bp);
+       /* power down PHY */
+       printk(KERN_INFO PFX "%s: powering down PHY\n", bp->dev->name);
+       bw32(bp, B44_MAC_CTRL, MAC_CTRL_PHY_PDOWN);
+       /* now reset the chip, but without enabling the MAC&PHY
+        * part of it. This has to be done _after_ we shut down the PHY */
+       b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL);
 }
 
 /* bp->lock is held. */
@@ -1365,7 +1381,7 @@ static void b44_init_hw(struct b44 *bp, int reset_kind)
 {
        u32 val;
 
-       b44_chip_reset(bp);
+       b44_chip_reset(bp, B44_CHIP_RESET_FULL);
        if (reset_kind == B44_FULL_RESET) {
                b44_phy_reset(bp);
                b44_setup_phy(bp);
@@ -1422,7 +1438,7 @@ static int b44_open(struct net_device *dev)
        err = request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev);
        if (unlikely(err < 0)) {
                napi_disable(&bp->napi);
-               b44_chip_reset(bp);
+               b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL);
                b44_free_rings(bp);
                b44_free_consistent(bp);
                goto out;
@@ -2060,12 +2076,17 @@ static int __devinit b44_get_invariants(struct b44 *bp)
 
        if (sdev->bus->bustype == SSB_BUSTYPE_SSB &&
            instance > 1) {
-               addr = sdev->bus->sprom.r1.et1mac;
-               bp->phy_addr = sdev->bus->sprom.r1.et1phyaddr;
+               addr = sdev->bus->sprom.et1mac;
+               bp->phy_addr = sdev->bus->sprom.et1phyaddr;
        } else {
-               addr = sdev->bus->sprom.r1.et0mac;
-               bp->phy_addr = sdev->bus->sprom.r1.et0phyaddr;
+               addr = sdev->bus->sprom.et0mac;
+               bp->phy_addr = sdev->bus->sprom.et0phyaddr;
        }
+       /* Some ROMs have buggy PHY addresses with the high
+        * bits set (sign extension?). Truncate them to a
+        * valid PHY address. */
+       bp->phy_addr &= 0x1F;
+
        memcpy(bp->dev->dev_addr, addr, 6);
 
        if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){
@@ -2188,7 +2209,7 @@ static int __devinit b44_init_one(struct ssb_device *sdev,
        /* Chip reset provides power to the b44 MAC & PCI cores, which
         * is necessary for MAC register access.
         */
-       b44_chip_reset(bp);
+       b44_chip_reset(bp, B44_CHIP_RESET_FULL);
 
        printk(KERN_INFO "%s: Broadcom 44xx/47xx 10/100BaseT Ethernet %s\n",
               dev->name, print_mac(mac, dev->dev_addr));
@@ -2212,6 +2233,7 @@ static void __devexit b44_remove_one(struct ssb_device *sdev)
        unregister_netdev(dev);
        ssb_bus_may_powerdown(sdev->bus);
        free_netdev(dev);
+       ssb_pcihost_set_power_state(sdev, PCI_D3hot);
        ssb_set_drvdata(sdev, NULL);
 }
 
@@ -2240,6 +2262,7 @@ static int b44_suspend(struct ssb_device *sdev, pm_message_t state)
                b44_setup_wol(bp);
        }
 
+       ssb_pcihost_set_power_state(sdev, PCI_D3hot);
        return 0;
 }