openwrt-xburst/target/linux/generic/patches-2.6.35/975-ssb_update.patch

--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -135,7 +135,6 @@ static void b44_init_rings(struct b44 *)
 
 static void b44_init_hw(struct b44 *, int);
 
-static int dma_desc_align_mask;
 static int dma_desc_sync_size;
 static int instance;
 
@@ -150,9 +149,8 @@ static inline void b44_sync_dma_desc_for
 						unsigned long offset,
 						enum dma_data_direction dir)
 {
-	ssb_dma_sync_single_range_for_device(sdev, dma_base,
-					     offset & dma_desc_align_mask,
-					     dma_desc_sync_size, dir);
+	dma_sync_single_for_device(sdev->dma_dev, dma_base + offset,
+				   dma_desc_sync_size, dir);
 }
 
 static inline void b44_sync_dma_desc_for_cpu(struct ssb_device *sdev,
@@ -160,9 +158,8 @@ static inline void b44_sync_dma_desc_for
 					     unsigned long offset,
 					     enum dma_data_direction dir)
 {
-	ssb_dma_sync_single_range_for_cpu(sdev, dma_base,
-					  offset & dma_desc_align_mask,
-					  dma_desc_sync_size, dir);
+	dma_sync_single_for_cpu(sdev->dma_dev, dma_base + offset,
+				dma_desc_sync_size, dir);
 }
 
 static inline unsigned long br32(const struct b44 *bp, unsigned long reg)
@@ -608,10 +605,10 @@ static void b44_tx(struct b44 *bp)
 
 		BUG_ON(skb == NULL);
 
-		ssb_dma_unmap_single(bp->sdev,
-				     rp->mapping,
-				     skb->len,
-				     DMA_TO_DEVICE);
+		dma_unmap_single(bp->sdev->dma_dev,
+				 rp->mapping,
+				 skb->len,
+				 DMA_TO_DEVICE);
 		rp->skb = NULL;
 		dev_kfree_skb_irq(skb);
 	}
@@ -648,29 +645,29 @@ static int b44_alloc_rx_skb(struct b44 *
 	if (skb == NULL)
 		return -ENOMEM;
 
-	mapping = ssb_dma_map_single(bp->sdev, skb->data,
-				     RX_PKT_BUF_SZ,
-				     DMA_FROM_DEVICE);
+	mapping = dma_map_single(bp->sdev->dma_dev, skb->data,
+				 RX_PKT_BUF_SZ,
+				 DMA_FROM_DEVICE);
 
 	/* Hardware bug work-around, the chip is unable to do PCI DMA
 	   to/from anything above 1GB :-( */
-	if (ssb_dma_mapping_error(bp->sdev, mapping) ||
+	if (dma_mapping_error(bp->sdev->dma_dev, mapping) ||
 		mapping + RX_PKT_BUF_SZ > DMA_BIT_MASK(30)) {
 		/* Sigh... */
-		if (!ssb_dma_mapping_error(bp->sdev, mapping))
-			ssb_dma_unmap_single(bp->sdev, mapping,
+		if (!dma_mapping_error(bp->sdev->dma_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 = ssb_dma_map_single(bp->sdev, skb->data,
-					     RX_PKT_BUF_SZ,
-					     DMA_FROM_DEVICE);
-		if (ssb_dma_mapping_error(bp->sdev, mapping) ||
-			mapping + RX_PKT_BUF_SZ > DMA_BIT_MASK(30)) {
-			if (!ssb_dma_mapping_error(bp->sdev, mapping))
-				ssb_dma_unmap_single(bp->sdev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
+		mapping = dma_map_single(bp->sdev->dma_dev, skb->data,
+					 RX_PKT_BUF_SZ,
+					 DMA_FROM_DEVICE);
+		if (dma_mapping_error(bp->sdev->dma_dev, mapping) ||
+		    mapping + RX_PKT_BUF_SZ > DMA_BIT_MASK(30)) {
+			if (!dma_mapping_error(bp->sdev->dma_dev, mapping))
+				dma_unmap_single(bp->sdev->dma_dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
 			dev_kfree_skb_any(skb);
 			return -ENOMEM;
 		}
@@ -745,9 +742,9 @@ static void b44_recycle_rx(struct b44 *b
 					     dest_idx * sizeof(*dest_desc),
 					     DMA_BIDIRECTIONAL);
 
-	ssb_dma_sync_single_for_device(bp->sdev, dest_map->mapping,
-				       RX_PKT_BUF_SZ,
-				       DMA_FROM_DEVICE);
+	dma_sync_single_for_device(bp->sdev->dma_dev, dest_map->mapping,
+				   RX_PKT_BUF_SZ,
+				   DMA_FROM_DEVICE);
 }
 
 static int b44_rx(struct b44 *bp, int budget)
@@ -767,9 +764,9 @@ static int b44_rx(struct b44 *bp, int bu
 		struct rx_header *rh;
 		u16 len;
 
-		ssb_dma_sync_single_for_cpu(bp->sdev, map,
-					    RX_PKT_BUF_SZ,
-					    DMA_FROM_DEVICE);
+		dma_sync_single_for_cpu(bp->sdev->dma_dev, map,
+					RX_PKT_BUF_SZ,
+					DMA_FROM_DEVICE);
 		rh = (struct rx_header *) skb->data;
 		len = le16_to_cpu(rh->len);
 		if ((len > (RX_PKT_BUF_SZ - RX_PKT_OFFSET)) ||
@@ -801,8 +798,8 @@ static int b44_rx(struct b44 *bp, int bu
 			skb_size = b44_alloc_rx_skb(bp, cons, bp->rx_prod);
 			if (skb_size < 0)
 				goto drop_it;
-			ssb_dma_unmap_single(bp->sdev, map,
-					     skb_size, DMA_FROM_DEVICE);
+			dma_unmap_single(bp->sdev->dma_dev, map,
+					 skb_size, DMA_FROM_DEVICE);
 			/* Leave out rx_header */
 			skb_put(skb, len + RX_PKT_OFFSET);
 			skb_pull(skb, RX_PKT_OFFSET);
@@ -954,24 +951,24 @@ static netdev_tx_t b44_start_xmit(struct
 		goto err_out;
 	}
 
-	mapping = ssb_dma_map_single(bp->sdev, skb->data, len, DMA_TO_DEVICE);
-	if (ssb_dma_mapping_error(bp->sdev, mapping) || mapping + len > DMA_BIT_MASK(30)) {
+	mapping = dma_map_single(bp->sdev->dma_dev, skb->data, len, DMA_TO_DEVICE);
+	if (dma_mapping_error(bp->sdev->dma_dev, mapping) || mapping + len > DMA_BIT_MASK(30)) {
 		struct sk_buff *bounce_skb;
 
 		/* Chip can't handle DMA to/from >1GB, use bounce buffer */
-		if (!ssb_dma_mapping_error(bp->sdev, mapping))
-			ssb_dma_unmap_single(bp->sdev, mapping, len,
+		if (!dma_mapping_error(bp->sdev->dma_dev, mapping))
+			dma_unmap_single(bp->sdev->dma_dev, mapping, len,
 					     DMA_TO_DEVICE);
 
 		bounce_skb = __netdev_alloc_skb(dev, len, GFP_ATOMIC | GFP_DMA);
 		if (!bounce_skb)
 			goto err_out;
 
-		mapping = ssb_dma_map_single(bp->sdev, bounce_skb->data,
-					     len, DMA_TO_DEVICE);
-		if (ssb_dma_mapping_error(bp->sdev, mapping) || mapping + len > DMA_BIT_MASK(30)) {
-			if (!ssb_dma_mapping_error(bp->sdev, mapping))
-				ssb_dma_unmap_single(bp->sdev, mapping,
+		mapping = dma_map_single(bp->sdev->dma_dev, bounce_skb->data,
+					 len, DMA_TO_DEVICE);
+		if (dma_mapping_error(bp->sdev->dma_dev, mapping) || mapping + len > DMA_BIT_MASK(30)) {
+			if (!dma_mapping_error(bp->sdev->dma_dev, mapping))
+				dma_unmap_single(bp->sdev->dma_dev, mapping,
 						     len, DMA_TO_DEVICE);
 			dev_kfree_skb_any(bounce_skb);
 			goto err_out;
@@ -1068,8 +1065,8 @@ static void b44_free_rings(struct b44 *b
 
 		if (rp->skb == NULL)
 			continue;
-		ssb_dma_unmap_single(bp->sdev, rp->mapping, RX_PKT_BUF_SZ,
-				     DMA_FROM_DEVICE);
+		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;
 	}
@@ -1080,8 +1077,8 @@ static void b44_free_rings(struct b44 *b
 
 		if (rp->skb == NULL)
 			continue;
-		ssb_dma_unmap_single(bp->sdev, rp->mapping, rp->skb->len,
-				     DMA_TO_DEVICE);
+		dma_unmap_single(bp->sdev->dma_dev, rp->mapping, rp->skb->len,
+				 DMA_TO_DEVICE);
 		dev_kfree_skb_any(rp->skb);
 		rp->skb = NULL;
 	}
@@ -1103,14 +1100,12 @@ static void b44_init_rings(struct b44 *b
 	memset(bp->tx_ring, 0, B44_TX_RING_BYTES);
 
 	if (bp->flags & B44_FLAG_RX_RING_HACK)
-		ssb_dma_sync_single_for_device(bp->sdev, bp->rx_ring_dma,
-					       DMA_TABLE_BYTES,
-					       DMA_BIDIRECTIONAL);
+		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)
-		ssb_dma_sync_single_for_device(bp->sdev, bp->tx_ring_dma,
-					       DMA_TABLE_BYTES,
-					       DMA_TO_DEVICE);
+		dma_sync_single_for_device(bp->sdev->dma_dev, bp->tx_ring_dma,
+					   DMA_TABLE_BYTES, DMA_TO_DEVICE);
 
 	for (i = 0; i < bp->rx_pending; i++) {
 		if (b44_alloc_rx_skb(bp, -1, i) < 0)
@@ -1130,27 +1125,23 @@ static void b44_free_consistent(struct b
 	bp->tx_buffers = NULL;
 	if (bp->rx_ring) {
 		if (bp->flags & B44_FLAG_RX_RING_HACK) {
-			ssb_dma_unmap_single(bp->sdev, bp->rx_ring_dma,
-					     DMA_TABLE_BYTES,
-					     DMA_BIDIRECTIONAL);
+			dma_unmap_single(bp->sdev->dma_dev, bp->rx_ring_dma,
+					 DMA_TABLE_BYTES, DMA_BIDIRECTIONAL);
 			kfree(bp->rx_ring);
 		} else
-			ssb_dma_free_consistent(bp->sdev, DMA_TABLE_BYTES,
-						bp->rx_ring, bp->rx_ring_dma,
-						GFP_KERNEL);
+			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) {
-			ssb_dma_unmap_single(bp->sdev, bp->tx_ring_dma,
-					     DMA_TABLE_BYTES,
-					     DMA_TO_DEVICE);
+			dma_unmap_single(bp->sdev->dma_dev, bp->tx_ring_dma,
+					 DMA_TABLE_BYTES, DMA_TO_DEVICE);
 			kfree(bp->tx_ring);
 		} else
-			ssb_dma_free_consistent(bp->sdev, DMA_TABLE_BYTES,
-						bp->tx_ring, bp->tx_ring_dma,
-						GFP_KERNEL);
+			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;
 	}
@@ -1175,7 +1166,8 @@ static int b44_alloc_consistent(struct b
 		goto out_err;
 
 	size = DMA_TABLE_BYTES;
-	bp->rx_ring = ssb_dma_alloc_consistent(bp->sdev, 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
@@ -1187,11 +1179,11 @@ static int b44_alloc_consistent(struct b
 		if (!rx_ring)
 			goto out_err;
 
-		rx_ring_dma = ssb_dma_map_single(bp->sdev, rx_ring,
-						 DMA_TABLE_BYTES,
-						 DMA_BIDIRECTIONAL);
+		rx_ring_dma = dma_map_single(bp->sdev->dma_dev, rx_ring,
+					     DMA_TABLE_BYTES,
+					     DMA_BIDIRECTIONAL);
 
-		if (ssb_dma_mapping_error(bp->sdev, rx_ring_dma) ||
+		if (dma_mapping_error(bp->sdev->dma_dev, rx_ring_dma) ||
 			rx_ring_dma + size > DMA_BIT_MASK(30)) {
 			kfree(rx_ring);
 			goto out_err;
@@ -1202,7 +1194,8 @@ static int b44_alloc_consistent(struct b
 		bp->flags |= B44_FLAG_RX_RING_HACK;
 	}
 
-	bp->tx_ring = ssb_dma_alloc_consistent(bp->sdev, 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 ssb_dma_alloc_consistent
 		   insisting on use of GFP_DMA, which is more restrictive
@@ -1214,11 +1207,11 @@ static int b44_alloc_consistent(struct b
 		if (!tx_ring)
 			goto out_err;
 
-		tx_ring_dma = ssb_dma_map_single(bp->sdev, tx_ring,
-			                    DMA_TABLE_BYTES,
-			                    DMA_TO_DEVICE);
+		tx_ring_dma = dma_map_single(bp->sdev->dma_dev, tx_ring,
+					     DMA_TABLE_BYTES,
+					     DMA_TO_DEVICE);
 
-		if (ssb_dma_mapping_error(bp->sdev, tx_ring_dma) ||
+		if (dma_mapping_error(bp->sdev->dma_dev, tx_ring_dma) ||
 			tx_ring_dma + size > DMA_BIT_MASK(30)) {
 			kfree(tx_ring);
 			goto out_err;
@@ -2176,12 +2169,14 @@ static int __devinit b44_init_one(struct
 			"Failed to powerup the bus\n");
 		goto err_out_free_dev;
 	}
-	err = ssb_dma_set_mask(sdev, DMA_BIT_MASK(30));
-	if (err) {
+
+	if (dma_set_mask(sdev->dma_dev, DMA_BIT_MASK(30)) ||
+	    dma_set_coherent_mask(sdev->dma_dev, DMA_BIT_MASK(30))) {
 		dev_err(sdev->dev,
 			"Required 30BIT DMA mask unsupported by the system\n");
 		goto err_out_powerdown;
 	}
+
 	err = b44_get_invariants(bp);
 	if (err) {
 		dev_err(sdev->dev,
@@ -2344,7 +2339,6 @@ static int __init b44_init(void)
 	int err;
 
 	/* Setup paramaters for syncing RX/TX DMA descriptors */
-	dma_desc_align_mask = ~(dma_desc_align_size - 1);
 	dma_desc_sync_size = max_t(unsigned int, dma_desc_align_size, sizeof(struct dma_desc));
 
 	err = b44_pci_init();
--- a/drivers/ssb/driver_chipcommon.c
+++ b/drivers/ssb/driver_chipcommon.c
@@ -209,6 +209,24 @@ static void chipco_powercontrol_init(str
 	}
 }
 
+/* http://bcm-v4.sipsolutions.net/802.11/PmuFastPwrupDelay */
+static u16 pmu_fast_powerup_delay(struct ssb_chipcommon *cc)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+
+	switch (bus->chip_id) {
+	case 0x4312:
+	case 0x4322:
+	case 0x4328:
+		return 7000;
+	case 0x4325:
+		/* TODO: */
+	default:
+		return 15000;
+	}
+}
+
+/* http://bcm-v4.sipsolutions.net/802.11/ClkctlFastPwrupDelay */
 static void calc_fast_powerup_delay(struct ssb_chipcommon *cc)
 {
 	struct ssb_bus *bus = cc->dev->bus;
@@ -218,6 +236,12 @@ static void calc_fast_powerup_delay(stru
 
 	if (bus->bustype != SSB_BUSTYPE_PCI)
 		return;
+
+	if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
+		cc->fast_pwrup_delay = pmu_fast_powerup_delay(cc);
+		return;
+	}
+
 	if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
 		return;
 
@@ -235,6 +259,7 @@ void ssb_chipcommon_init(struct ssb_chip
 		return; /* We don't have a ChipCommon */
 	if (cc->dev->id.revision >= 11)
 		cc->status = chipco_read32(cc, SSB_CHIPCO_CHIPSTAT);
+	ssb_dprintk(KERN_INFO PFX "chipcommon status is 0x%x\n", cc->status);
 	ssb_pmu_init(cc);
 	chipco_powercontrol_init(cc);
 	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
--- a/drivers/ssb/driver_chipcommon_pmu.c
+++ b/drivers/ssb/driver_chipcommon_pmu.c
@@ -502,9 +502,9 @@ static void ssb_pmu_resources_init(struc
 		chipco_write32(cc, SSB_CHIPCO_PMU_MAXRES_MSK, max_msk);
 }
 
+/* http://bcm-v4.sipsolutions.net/802.11/SSB/PmuInit */
 void ssb_pmu_init(struct ssb_chipcommon *cc)
 {
-	struct ssb_bus *bus = cc->dev->bus;
 	u32 pmucap;
 
 	if (!(cc->capabilities & SSB_CHIPCO_CAP_PMU))
@@ -516,15 +516,12 @@ void ssb_pmu_init(struct ssb_chipcommon
 	ssb_dprintk(KERN_DEBUG PFX "Found rev %u PMU (capabilities 0x%08X)\n",
 		    cc->pmu.rev, pmucap);
 
-	if (cc->pmu.rev >= 1) {
-		if ((bus->chip_id == 0x4325) && (bus->chip_rev < 2)) {
-			chipco_mask32(cc, SSB_CHIPCO_PMU_CTL,
-				      ~SSB_CHIPCO_PMU_CTL_NOILPONW);
-		} else {
-			chipco_set32(cc, SSB_CHIPCO_PMU_CTL,
-				     SSB_CHIPCO_PMU_CTL_NOILPONW);
-		}
-	}
+	if (cc->pmu.rev == 1)
+		chipco_mask32(cc, SSB_CHIPCO_PMU_CTL,
+			      ~SSB_CHIPCO_PMU_CTL_NOILPONW);
+	else
+		chipco_set32(cc, SSB_CHIPCO_PMU_CTL,
+			     SSB_CHIPCO_PMU_CTL_NOILPONW);
 	ssb_pmu_pll_init(cc);
 	ssb_pmu_resources_init(cc);
 }
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -486,6 +486,7 @@ static int ssb_devices_register(struct s
 #ifdef CONFIG_SSB_PCIHOST
 			sdev->irq = bus->host_pci->irq;
 			dev->parent = &bus->host_pci->dev;
+			sdev->dma_dev = dev->parent;
 #endif
 			break;
 		case SSB_BUSTYPE_PCMCIA:
@@ -501,6 +502,7 @@ static int ssb_devices_register(struct s
 			break;
 		case SSB_BUSTYPE_SSB:
 			dev->dma_mask = &dev->coherent_dma_mask;
+			sdev->dma_dev = dev;
 			break;
 		}
 
@@ -1226,80 +1228,6 @@ u32 ssb_dma_translation(struct ssb_devic
 }
 EXPORT_SYMBOL(ssb_dma_translation);
 
-int ssb_dma_set_mask(struct ssb_device *dev, u64 mask)
-{
-#ifdef CONFIG_SSB_PCIHOST
-	int err;
-#endif
-
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		err = pci_set_dma_mask(dev->bus->host_pci, mask);
-		if (err)
-			return err;
-		err = pci_set_consistent_dma_mask(dev->bus->host_pci, mask);
-		return err;
-#endif
-	case SSB_BUSTYPE_SSB:
-		return dma_set_mask(dev->dev, mask);
-	default:
-		__ssb_dma_not_implemented(dev);
-	}
-	return -ENOSYS;
-}
-EXPORT_SYMBOL(ssb_dma_set_mask);
-
-void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
-				dma_addr_t *dma_handle, gfp_t gfp_flags)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		if (gfp_flags & GFP_DMA) {
-			/* Workaround: The PCI API does not support passing
-			 * a GFP flag. */
-			return dma_alloc_coherent(&dev->bus->host_pci->dev,
-						  size, dma_handle, gfp_flags);
-		}
-		return pci_alloc_consistent(dev->bus->host_pci, size, dma_handle);
-#endif
-	case SSB_BUSTYPE_SSB:
-		return dma_alloc_coherent(dev->dev, size, dma_handle, gfp_flags);
-	default:
-		__ssb_dma_not_implemented(dev);
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(ssb_dma_alloc_consistent);
-
-void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
-			     void *vaddr, dma_addr_t dma_handle,
-			     gfp_t gfp_flags)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		if (gfp_flags & GFP_DMA) {
-			/* Workaround: The PCI API does not support passing
-			 * a GFP flag. */
-			dma_free_coherent(&dev->bus->host_pci->dev,
-					  size, vaddr, dma_handle);
-			return;
-		}
-		pci_free_consistent(dev->bus->host_pci, size,
-				    vaddr, dma_handle);
-		return;
-#endif
-	case SSB_BUSTYPE_SSB:
-		dma_free_coherent(dev->dev, size, vaddr, dma_handle);
-		return;
-	default:
-		__ssb_dma_not_implemented(dev);
-	}
-}
-EXPORT_SYMBOL(ssb_dma_free_consistent);
-
 int ssb_bus_may_powerdown(struct ssb_bus *bus)
 {
 	struct ssb_chipcommon *cc;
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -626,11 +626,22 @@ static int ssb_pci_sprom_get(struct ssb_
 		return -ENODEV;
 	}
 	if (bus->chipco.dev) {	/* can be unavailible! */
-		bus->sprom_offset = (bus->chipco.dev->id.revision < 31) ?
-			SSB_SPROM_BASE1 : SSB_SPROM_BASE31;
+		/*
+		 * get SPROM offset: SSB_SPROM_BASE1 except for
+		 * chipcommon rev >= 31 or chip ID is 0x4312 and
+		 * chipcommon status & 3 == 2
+		 */
+		if (bus->chipco.dev->id.revision >= 31)
+			bus->sprom_offset = SSB_SPROM_BASE31;
+		else if (bus->chip_id == 0x4312 &&
+			 (bus->chipco.status & 0x03) == 2)
+			bus->sprom_offset = SSB_SPROM_BASE31;
+		else
+			bus->sprom_offset = SSB_SPROM_BASE1;
 	} else {
 		bus->sprom_offset = SSB_SPROM_BASE1;
 	}
+	ssb_dprintk(KERN_INFO PFX "SPROM offset is 0x%x\n", bus->sprom_offset);
 
 	buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL);
 	if (!buf)
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -167,7 +167,7 @@ struct ssb_device {
 	 * is an optimization. */
 	const struct ssb_bus_ops *ops;
 
-	struct device *dev;
+	struct device *dev, *dma_dev;
 
 	struct ssb_bus *bus;
 	struct ssb_device_id id;
@@ -470,14 +470,6 @@ extern u32 ssb_dma_translation(struct ss
 #define SSB_DMA_TRANSLATION_MASK	0xC0000000
 #define SSB_DMA_TRANSLATION_SHIFT	30
 
-extern int ssb_dma_set_mask(struct ssb_device *dev, u64 mask);
-
-extern void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t gfp_flags);
-extern void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
-				    void *vaddr, dma_addr_t dma_handle,
-				    gfp_t gfp_flags);
-
 static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
 {
 #ifdef CONFIG_SSB_DEBUG
@@ -486,155 +478,6 @@ static inline void __cold __ssb_dma_not_
 #endif /* DEBUG */
 }
 
-static inline int ssb_dma_mapping_error(struct ssb_device *dev, dma_addr_t addr)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		return pci_dma_mapping_error(dev->bus->host_pci, addr);
-#endif
-		break;
-	case SSB_BUSTYPE_SSB:
-		return dma_mapping_error(dev->dev, addr);
-	default:
-		break;
-	}
-	__ssb_dma_not_implemented(dev);
-	return -ENOSYS;
-}
-
-static inline dma_addr_t ssb_dma_map_single(struct ssb_device *dev, void *p,
-					    size_t size, enum dma_data_direction dir)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		return pci_map_single(dev->bus->host_pci, p, size, dir);
-#endif
-		break;
-	case SSB_BUSTYPE_SSB:
-		return dma_map_single(dev->dev, p, size, dir);
-	default:
-		break;
-	}
-	__ssb_dma_not_implemented(dev);
-	return 0;
-}
-
-static inline void ssb_dma_unmap_single(struct ssb_device *dev, dma_addr_t dma_addr,
-					size_t size, enum dma_data_direction dir)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		pci_unmap_single(dev->bus->host_pci, dma_addr, size, dir);
-		return;
-#endif
-		break;
-	case SSB_BUSTYPE_SSB:
-		dma_unmap_single(dev->dev, dma_addr, size, dir);
-		return;
-	default:
-		break;
-	}
-	__ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_for_cpu(struct ssb_device *dev,
-					       dma_addr_t dma_addr,
-					       size_t size,
-					       enum dma_data_direction dir)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
-					    size, dir);
-		return;
-#endif
-		break;
-	case SSB_BUSTYPE_SSB:
-		dma_sync_single_for_cpu(dev->dev, dma_addr, size, dir);
-		return;
-	default:
-		break;
-	}
-	__ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_for_device(struct ssb_device *dev,
-						  dma_addr_t dma_addr,
-						  size_t size,
-						  enum dma_data_direction dir)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
-					       size, dir);
-		return;
-#endif
-		break;
-	case SSB_BUSTYPE_SSB:
-		dma_sync_single_for_device(dev->dev, dma_addr, size, dir);
-		return;
-	default:
-		break;
-	}
-	__ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_range_for_cpu(struct ssb_device *dev,
-						     dma_addr_t dma_addr,
-						     unsigned long offset,
-						     size_t size,
-						     enum dma_data_direction dir)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		/* Just sync everything. That's all the PCI API can do. */
-		pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
-					    offset + size, dir);
-		return;
-#endif
-		break;
-	case SSB_BUSTYPE_SSB:
-		dma_sync_single_range_for_cpu(dev->dev, dma_addr, offset,
-					      size, dir);
-		return;
-	default:
-		break;
-	}
-	__ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_range_for_device(struct ssb_device *dev,
-							dma_addr_t dma_addr,
-							unsigned long offset,
-							size_t size,
-							enum dma_data_direction dir)
-{
-	switch (dev->bus->bustype) {
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		/* Just sync everything. That's all the PCI API can do. */
-		pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
-					       offset + size, dir);
-		return;
-#endif
-		break;
-	case SSB_BUSTYPE_SSB:
-		dma_sync_single_range_for_device(dev->dev, dma_addr, offset,
-						 size, dir);
-		return;
-	default:
-		break;
-	}
-	__ssb_dma_not_implemented(dev);
-}
-
-
 #ifdef CONFIG_SSB_PCIHOST
 /* PCI-host wrapper driver */
 extern int ssb_pcihost_register(struct pci_driver *driver);