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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (180 commits)
  leo: disable cursor when leaving graphics mode
  cg6: disable cursor when leaving graphics mode
  sparc32: sun4m interrupt mask cleanup
  drivers/rtc/Kconfig: don't build rtc-cmos.o on sparc32
  sparc: arch/sparc/kernel/pmc.c -- extra #include?
  sparc32: Add more extensive documentation of sun4m interrupts.
  sparc32: Kill irq_rcvreg from sun4m_irq.c
  sparc32: Delete master_l10_limit.
  sparc32: Use PROM device probing for sun4c timers.
  sparc32: Use PROM device probing for sun4c interrupt register.
  sparc32: Delete claim_ticker14().
  sparc32: Stop calling claim_ticker14() from sun4c_irq.c
  sparc32: Kill clear_profile_irq btfixup entry.
  sparc32: Call sun4m_clear_profile_irq() directly from sun4m_smp.c
  sparc32: Remove #if 0'd code from sun4c_irq.c
  sparc32: Remove some SMP ifdefs in sun4d_irq.c
  sparc32: Use PROM infrastructure for probing and mapping sun4d timers.
  sparc32: Use PROM device probing for sun4m irq registers.
  sparc32: Use PROM device probing for sun4m timer registers.
  sparc: Fix user_regset 'n' field values.
  ...

4 files changed, 222 insertions, 196 deletions

diff --git a/drivers/scsi/esp_scsi.h b/drivers/scsi/esp_scsi.h
index bb43a1388188..28e22acf87ea 100644
--- a/drivers/scsi/esp_scsi.h
+++ b/drivers/scsi/esp_scsi.h
@@ -521,7 +521,8 @@ struct esp {
 
 	struct completion	*eh_reset;
 
-	struct sbus_dma		*dma;
+	void			*dma;
+	int			dmarev;
 };
 
 /* A front-end driver for the ESP chip should do the following in
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 905350896725..69d6ad862b60 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -1,6 +1,6 @@
 /* qlogicpti.c: Performance Technologies QlogicISP sbus card driver.
  *
- * Copyright (C) 1996, 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996, 2006, 2008 David S. Miller (davem@davemloft.net)
  *
  * A lot of this driver was directly stolen from Erik H. Moe's PCI
  * Qlogic ISP driver.  Mucho kudos to him for this code.
@@ -25,12 +25,14 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/jiffies.h>
+#include <linux/dma-mapping.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/byteorder.h>
 
 #include "qlogicpti.h"
 
-#include <asm/sbus.h>
 #include <asm/dma.h>
 #include <asm/system.h>
 #include <asm/ptrace.h>
@@ -157,7 +159,7 @@ static inline void set_sbus_cfg1(struct qlogicpti *qpti)
 	 * is a nop and the chip ends up using the smallest burst
 	 * size. -DaveM
 	 */
-	if (sbus_can_burst64(qpti->sdev) && (bursts & DMA_BURST64)) {
+	if (sbus_can_burst64() && (bursts & DMA_BURST64)) {
 		val = (SBUS_CFG1_BENAB | SBUS_CFG1_B64);
 	} else
 #endif
@@ -684,19 +686,19 @@ static void __devexit qpti_chain_del(struct qlogicpti *qpti)
 
 static int __devinit qpti_map_regs(struct qlogicpti *qpti)
 {
-	struct sbus_dev *sdev = qpti->sdev;
+	struct of_device *op = qpti->op;
 
-	qpti->qregs = sbus_ioremap(&sdev->resource[0], 0,
-				   sdev->reg_addrs[0].reg_size,
-				   "PTI Qlogic/ISP");
+	qpti->qregs = of_ioremap(&op->resource[0], 0,
+				 resource_size(&op->resource[0]),
+				 "PTI Qlogic/ISP");
 	if (!qpti->qregs) {
 		printk("PTI: Qlogic/ISP registers are unmappable\n");
 		return -1;
 	}
 	if (qpti->is_pti) {
-		qpti->sreg = sbus_ioremap(&sdev->resource[0], (16 * 4096),
-					  sizeof(unsigned char),
-					  "PTI Qlogic/ISP statreg");
+		qpti->sreg = of_ioremap(&op->resource[0], (16 * 4096),
+					sizeof(unsigned char),
+					"PTI Qlogic/ISP statreg");
 		if (!qpti->sreg) {
 			printk("PTI: Qlogic/ISP status register is unmappable\n");
 			return -1;
@@ -707,9 +709,9 @@ static int __devinit qpti_map_regs(struct qlogicpti *qpti)
 
 static int __devinit qpti_register_irq(struct qlogicpti *qpti)
 {
-	struct sbus_dev *sdev = qpti->sdev;
+	struct of_device *op = qpti->op;
 
-	qpti->qhost->irq = qpti->irq = sdev->irqs[0];
+	qpti->qhost->irq = qpti->irq = op->irqs[0];
 
 	/* We used to try various overly-clever things to
 	 * reduce the interrupt processing overhead on
@@ -732,17 +734,19 @@ fail:
 
 static void __devinit qpti_get_scsi_id(struct qlogicpti *qpti)
 {
-	qpti->scsi_id = prom_getintdefault(qpti->prom_node,
-					   "initiator-id",
-					   -1);
+	struct of_device *op = qpti->op;
+	struct device_node *dp;
+
+	dp = op->node;
+
+	qpti->scsi_id = of_getintprop_default(dp, "initiator-id", -1);
 	if (qpti->scsi_id == -1)
-		qpti->scsi_id = prom_getintdefault(qpti->prom_node,
-						   "scsi-initiator-id",
-						   -1);
+		qpti->scsi_id = of_getintprop_default(dp, "scsi-initiator-id",
+						      -1);
 	if (qpti->scsi_id == -1)
 		qpti->scsi_id =
-			prom_getintdefault(qpti->sdev->bus->prom_node,
-					   "scsi-initiator-id", 7);
+			of_getintprop_default(dp->parent,
+					      "scsi-initiator-id", 7);
 	qpti->qhost->this_id = qpti->scsi_id;
 	qpti->qhost->max_sectors = 64;
 
@@ -751,12 +755,11 @@ static void __devinit qpti_get_scsi_id(struct qlogicpti *qpti)
 
 static void qpti_get_bursts(struct qlogicpti *qpti)
 {
-	struct sbus_dev *sdev = qpti->sdev;
+	struct of_device *op = qpti->op;
 	u8 bursts, bmask;
 
-	bursts = prom_getintdefault(qpti->prom_node, "burst-sizes", 0xff);
-	bmask = prom_getintdefault(sdev->bus->prom_node,
-				   "burst-sizes", 0xff);
+	bursts = of_getintprop_default(op->node, "burst-sizes", 0xff);
+	bmask = of_getintprop_default(op->node->parent, "burst-sizes", 0xff);
 	if (bmask != 0xff)
 		bursts &= bmask;
 	if (bursts == 0xff ||
@@ -785,25 +788,25 @@ static void qpti_get_clock(struct qlogicpti *qpti)
  */
 static int __devinit qpti_map_queues(struct qlogicpti *qpti)
 {
-	struct sbus_dev *sdev = qpti->sdev;
+	struct of_device *op = qpti->op;
 
 #define QSIZE(entries)	(((entries) + 1) * QUEUE_ENTRY_LEN)
-	qpti->res_cpu = sbus_alloc_consistent(sdev,
-					      QSIZE(RES_QUEUE_LEN),
-					      &qpti->res_dvma);
+	qpti->res_cpu = dma_alloc_coherent(&op->dev,
+					   QSIZE(RES_QUEUE_LEN),
+					   &qpti->res_dvma, GFP_ATOMIC);
 	if (qpti->res_cpu == NULL ||
 	    qpti->res_dvma == 0) {
 		printk("QPTI: Cannot map response queue.\n");
 		return -1;
 	}
 
-	qpti->req_cpu = sbus_alloc_consistent(sdev,
-					      QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
-					      &qpti->req_dvma);
+	qpti->req_cpu = dma_alloc_coherent(&op->dev,
+					   QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
+					   &qpti->req_dvma, GFP_ATOMIC);
 	if (qpti->req_cpu == NULL ||
 	    qpti->req_dvma == 0) {
-		sbus_free_consistent(sdev, QSIZE(RES_QUEUE_LEN),
-				     qpti->res_cpu, qpti->res_dvma);
+		dma_free_coherent(&op->dev, QSIZE(RES_QUEUE_LEN),
+				  qpti->res_cpu, qpti->res_dvma);
 		printk("QPTI: Cannot map request queue.\n");
 		return -1;
 	}
@@ -875,8 +878,9 @@ static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd,
 		int sg_count;
 
 		sg = scsi_sglist(Cmnd);
-		sg_count = sbus_map_sg(qpti->sdev, sg, scsi_sg_count(Cmnd),
-		                                      Cmnd->sc_data_direction);
+		sg_count = dma_map_sg(&qpti->op->dev, sg,
+				      scsi_sg_count(Cmnd),
+				      Cmnd->sc_data_direction);
 
 		ds = cmd->dataseg;
 		cmd->segment_cnt = sg_count;
@@ -1152,9 +1156,9 @@ static struct scsi_cmnd *qlogicpti_intr_handler(struct qlogicpti *qpti)
 			Cmnd->result = DID_ERROR << 16;
 
 		if (scsi_bufflen(Cmnd))
-			sbus_unmap_sg(qpti->sdev,
-				      scsi_sglist(Cmnd), scsi_sg_count(Cmnd),
-				      Cmnd->sc_data_direction);
+			dma_unmap_sg(&qpti->op->dev,
+				     scsi_sglist(Cmnd), scsi_sg_count(Cmnd),
+				     Cmnd->sc_data_direction);
 
 		qpti->cmd_count[Cmnd->device->id]--;
 		sbus_writew(out_ptr, qpti->qregs + MBOX5);
@@ -1268,34 +1272,32 @@ static struct scsi_host_template qpti_template = {
 	.use_clustering		= ENABLE_CLUSTERING,
 };
 
-static int __devinit qpti_sbus_probe(struct of_device *dev, const struct of_device_id *match)
+static int __devinit qpti_sbus_probe(struct of_device *op, const struct of_device_id *match)
 {
-	static int nqptis;
-	struct sbus_dev *sdev = to_sbus_device(&dev->dev);
-	struct device_node *dp = dev->node;
 	struct scsi_host_template *tpnt = match->data;
+	struct device_node *dp = op->node;
 	struct Scsi_Host *host;
 	struct qlogicpti *qpti;
+	static int nqptis;
 	const char *fcode;
 
 	/* Sometimes Antares cards come up not completely
 	 * setup, and we get a report of a zero IRQ.
 	 */
-	if (sdev->irqs[0] == 0)
+	if (op->irqs[0] == 0)
 		return -ENODEV;
 
 	host = scsi_host_alloc(tpnt, sizeof(struct qlogicpti));
 	if (!host)
 		return -ENOMEM;
 
-	qpti = (struct qlogicpti *) host->hostdata;
+	qpti = shost_priv(host);
 
 	host->max_id = MAX_TARGETS;
 	qpti->qhost = host;
-	qpti->sdev = sdev;
+	qpti->op = op;
 	qpti->qpti_id = nqptis;
-	qpti->prom_node = sdev->prom_node;
-	strcpy(qpti->prom_name, sdev->ofdev.node->name);
+	strcpy(qpti->prom_name, op->node->name);
 	qpti->is_pti = strcmp(qpti->prom_name, "QLGC,isp");
 
 	if (qpti_map_regs(qpti) < 0)
@@ -1341,12 +1343,12 @@ static int __devinit qpti_sbus_probe(struct of_device *dev, const struct of_devi
 		(qpti->ultra ? "Ultra" : "Fast"),
 		(qpti->differential ? "differential" : "single ended"));
 
-	if (scsi_add_host(host, &dev->dev)) {
+	if (scsi_add_host(host, &op->dev)) {
 		printk("qlogicpti%d: Failed scsi_add_host\n", qpti->qpti_id);
 		goto fail_unmap_queues;
 	}
 
-	dev_set_drvdata(&sdev->ofdev.dev, qpti);
+	dev_set_drvdata(&op->dev, qpti);
 
 	qpti_chain_add(qpti);
 
@@ -1357,19 +1359,20 @@ static int __devinit qpti_sbus_probe(struct of_device *dev, const struct of_devi
 
 fail_unmap_queues:
 #define QSIZE(entries)	(((entries) + 1) * QUEUE_ENTRY_LEN)
-	sbus_free_consistent(qpti->sdev,
-			     QSIZE(RES_QUEUE_LEN),
-			     qpti->res_cpu, qpti->res_dvma);
-	sbus_free_consistent(qpti->sdev,
-			     QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
-			     qpti->req_cpu, qpti->req_dvma);
+	dma_free_coherent(&op->dev,
+			  QSIZE(RES_QUEUE_LEN),
+			  qpti->res_cpu, qpti->res_dvma);
+	dma_free_coherent(&op->dev,
+			  QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
+			  qpti->req_cpu, qpti->req_dvma);
 #undef QSIZE
 
 fail_unmap_regs:
-	sbus_iounmap(qpti->qregs,
-		     qpti->sdev->reg_addrs[0].reg_size);
+	of_iounmap(&op->resource[0], qpti->qregs,
+		   resource_size(&op->resource[0]));
 	if (qpti->is_pti)
-		sbus_iounmap(qpti->sreg, sizeof(unsigned char));
+		of_iounmap(&op->resource[0], qpti->sreg,
+			   sizeof(unsigned char));
 
 fail_free_irq:
 	free_irq(qpti->irq, qpti);
@@ -1380,9 +1383,9 @@ fail_unlink:
 	return -ENODEV;
 }
 
-static int __devexit qpti_sbus_remove(struct of_device *dev)
+static int __devexit qpti_sbus_remove(struct of_device *op)
 {
-	struct qlogicpti *qpti = dev_get_drvdata(&dev->dev);
+	struct qlogicpti *qpti = dev_get_drvdata(&op->dev);
 
 	qpti_chain_del(qpti);
 
@@ -1395,24 +1398,25 @@ static int __devexit qpti_sbus_remove(struct of_device *dev)
 	free_irq(qpti->irq, qpti);
 
 #define QSIZE(entries)	(((entries) + 1) * QUEUE_ENTRY_LEN)
-	sbus_free_consistent(qpti->sdev,
-			     QSIZE(RES_QUEUE_LEN),
-			     qpti->res_cpu, qpti->res_dvma);
-	sbus_free_consistent(qpti->sdev,
-			     QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
-			     qpti->req_cpu, qpti->req_dvma);
+	dma_free_coherent(&op->dev,
+			  QSIZE(RES_QUEUE_LEN),
+			  qpti->res_cpu, qpti->res_dvma);
+	dma_free_coherent(&op->dev,
+			  QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
+			  qpti->req_cpu, qpti->req_dvma);
 #undef QSIZE
 
-	sbus_iounmap(qpti->qregs, qpti->sdev->reg_addrs[0].reg_size);
+	of_iounmap(&op->resource[0], qpti->qregs,
+		   resource_size(&op->resource[0]));
 	if (qpti->is_pti)
-		sbus_iounmap(qpti->sreg, sizeof(unsigned char));
+		of_iounmap(&op->resource[0], qpti->sreg, sizeof(unsigned char));
 
 	scsi_host_put(qpti->qhost);
 
 	return 0;
 }
 
-static struct of_device_id qpti_match[] = {
+static const struct of_device_id qpti_match[] = {
 	{
 		.name = "ptisp",
 		.data = &qpti_template,
@@ -1442,7 +1446,7 @@ static struct of_platform_driver qpti_sbus_driver = {
 
 static int __init qpti_init(void)
 {
-	return of_register_driver(&qpti_sbus_driver, &sbus_bus_type);
+	return of_register_driver(&qpti_sbus_driver, &of_bus_type);
 }
 
 static void __exit qpti_exit(void)
@@ -1453,7 +1457,7 @@ static void __exit qpti_exit(void)
 MODULE_DESCRIPTION("QlogicISP SBUS driver");
 MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
 MODULE_LICENSE("GPL");
-MODULE_VERSION("2.0");
+MODULE_VERSION("2.1");
 
 module_init(qpti_init);
 module_exit(qpti_exit);
diff --git a/drivers/scsi/qlogicpti.h b/drivers/scsi/qlogicpti.h
index ef6da2df584b..9c053bbaa877 100644
--- a/drivers/scsi/qlogicpti.h
+++ b/drivers/scsi/qlogicpti.h
@@ -342,7 +342,7 @@ struct qlogicpti {
 	u_int	                  req_in_ptr;		/* index of next request slot */
 	u_int	                  res_out_ptr;		/* index of next result slot  */
 	long	                  send_marker;		/* must we send a marker?     */
-	struct sbus_dev		 *sdev;
+	struct of_device	 *op;
 	unsigned long		  __pad;
 
 	int                       cmd_count[MAX_TARGETS];
diff --git a/drivers/scsi/sun_esp.c b/drivers/scsi/sun_esp.c
index f9cf70151366..3d73aad4bc82 100644
--- a/drivers/scsi/sun_esp.c
+++ b/drivers/scsi/sun_esp.c
@@ -1,6 +1,6 @@
 /* sun_esp.c: ESP front-end for Sparc SBUS systems.
  *
- * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/kernel.h>
@@ -9,60 +9,70 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/irq.h>
 #include <asm/io.h>
 #include <asm/dma.h>
 
-#include <asm/sbus.h>
-
 #include <scsi/scsi_host.h>
 
 #include "esp_scsi.h"
 
 #define DRV_MODULE_NAME		"sun_esp"
 #define PFX DRV_MODULE_NAME	": "
-#define DRV_VERSION		"1.000"
-#define DRV_MODULE_RELDATE	"April 19, 2007"
+#define DRV_VERSION		"1.100"
+#define DRV_MODULE_RELDATE	"August 27, 2008"
 
 #define dma_read32(REG) \
 	sbus_readl(esp->dma_regs + (REG))
 #define dma_write32(VAL, REG) \
 	sbus_writel((VAL), esp->dma_regs + (REG))
 
-static int __devinit esp_sbus_find_dma(struct esp *esp, struct sbus_dev *dma_sdev)
-{
-	struct sbus_dev *sdev = esp->dev;
-	struct sbus_dma *dma;
+/* DVMA chip revisions */
+enum dvma_rev {
+	dvmarev0,
+	dvmaesc1,
+	dvmarev1,
+	dvmarev2,
+	dvmarev3,
+	dvmarevplus,
+	dvmahme
+};
 
-	if (dma_sdev != NULL) {
-		for_each_dvma(dma) {
-			if (dma->sdev == dma_sdev)
-				break;
-		}
-	} else {
-		for_each_dvma(dma) {
-			if (dma->sdev == NULL)
-				break;
+static int __devinit esp_sbus_setup_dma(struct esp *esp,
+					struct of_device *dma_of)
+{
+	esp->dma = dma_of;
 
-			/* If bus + slot are the same and it has the
-			 * correct OBP name, it's ours.
-			 */
-			if (sdev->bus == dma->sdev->bus &&
-			    sdev->slot == dma->sdev->slot &&
-			    (!strcmp(dma->sdev->prom_name, "dma") ||
-			     !strcmp(dma->sdev->prom_name, "espdma")))
-				break;
-		}
-	}
+	esp->dma_regs = of_ioremap(&dma_of->resource[0], 0,
+				   resource_size(&dma_of->resource[0]),
+				   "espdma");
+	if (!esp->dma_regs)
+		return -ENOMEM;
 
-	if (dma == NULL) {
-		printk(KERN_ERR PFX "[%s] Cannot find dma.\n",
-		       sdev->ofdev.node->full_name);
-		return -ENODEV;
+	switch (dma_read32(DMA_CSR) & DMA_DEVICE_ID) {
+	case DMA_VERS0:
+		esp->dmarev = dvmarev0;
+		break;
+	case DMA_ESCV1:
+		esp->dmarev = dvmaesc1;
+		break;
+	case DMA_VERS1:
+		esp->dmarev = dvmarev1;
+		break;
+	case DMA_VERS2:
+		esp->dmarev = dvmarev2;
+		break;
+	case DMA_VERHME:
+		esp->dmarev = dvmahme;
+		break;
+	case DMA_VERSPLUS:
+		esp->dmarev = dvmarevplus;
+		break;
 	}
-	esp->dma = dma;
-	esp->dma_regs = dma->regs;
 
 	return 0;
 
@@ -70,18 +80,18 @@ static int __devinit esp_sbus_find_dma(struct esp *esp, struct sbus_dev *dma_sde
 
 static int __devinit esp_sbus_map_regs(struct esp *esp, int hme)
 {
-	struct sbus_dev *sdev = esp->dev;
+	struct of_device *op = esp->dev;
 	struct resource *res;
 
 	/* On HME, two reg sets exist, first is DVMA,
 	 * second is ESP registers.
 	 */
 	if (hme)
-		res = &sdev->resource[1];
+		res = &op->resource[1];
 	else
-		res = &sdev->resource[0];
+		res = &op->resource[0];
 
-	esp->regs = sbus_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
+	esp->regs = of_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
 	if (!esp->regs)
 		return -ENOMEM;
 
@@ -90,10 +100,11 @@ static int __devinit esp_sbus_map_regs(struct esp *esp, int hme)
 
 static int __devinit esp_sbus_map_command_block(struct esp *esp)
 {
-	struct sbus_dev *sdev = esp->dev;
+	struct of_device *op = esp->dev;
 
-	esp->command_block = sbus_alloc_consistent(sdev, 16,
-						   &esp->command_block_dma);
+	esp->command_block = dma_alloc_coherent(&op->dev, 16,
+						&esp->command_block_dma,
+						GFP_ATOMIC);
 	if (!esp->command_block)
 		return -ENOMEM;
 	return 0;
@@ -102,17 +113,18 @@ static int __devinit esp_sbus_map_command_block(struct esp *esp)
 static int __devinit esp_sbus_register_irq(struct esp *esp)
 {
 	struct Scsi_Host *host = esp->host;
-	struct sbus_dev *sdev = esp->dev;
+	struct of_device *op = esp->dev;
 
-	host->irq = sdev->irqs[0];
+	host->irq = op->irqs[0];
 	return request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "ESP", esp);
 }
 
-static void __devinit esp_get_scsi_id(struct esp *esp)
+static void __devinit esp_get_scsi_id(struct esp *esp, struct of_device *espdma)
 {
-	struct sbus_dev *sdev = esp->dev;
-	struct device_node *dp = sdev->ofdev.node;
+	struct of_device *op = esp->dev;
+	struct device_node *dp;
 
+	dp = op->node;
 	esp->scsi_id = of_getintprop_default(dp, "initiator-id", 0xff);
 	if (esp->scsi_id != 0xff)
 		goto done;
@@ -121,13 +133,7 @@ static void __devinit esp_get_scsi_id(struct esp *esp)
 	if (esp->scsi_id != 0xff)
 		goto done;
 
-	if (!sdev->bus) {
-		/* SUN4 */
-		esp->scsi_id = 7;
-		goto done;
-	}
-
-	esp->scsi_id = of_getintprop_default(sdev->bus->ofdev.node,
+	esp->scsi_id = of_getintprop_default(espdma->node,
 					     "scsi-initiator-id", 7);
 
 done:
@@ -137,9 +143,10 @@ done:
 
 static void __devinit esp_get_differential(struct esp *esp)
 {
-	struct sbus_dev *sdev = esp->dev;
-	struct device_node *dp = sdev->ofdev.node;
+	struct of_device *op = esp->dev;
+	struct device_node *dp;
 
+	dp = op->node;
 	if (of_find_property(dp, "differential", NULL))
 		esp->flags |= ESP_FLAG_DIFFERENTIAL;
 	else
@@ -148,43 +155,36 @@ static void __devinit esp_get_differential(struct esp *esp)
 
 static void __devinit esp_get_clock_params(struct esp *esp)
 {
-	struct sbus_dev *sdev = esp->dev;
-	struct device_node *dp = sdev->ofdev.node;
-	struct device_node *bus_dp;
+	struct of_device *op = esp->dev;
+	struct device_node *bus_dp, *dp;
 	int fmhz;
 
-	bus_dp = NULL;
-	if (sdev != NULL && sdev->bus != NULL)
-		bus_dp = sdev->bus->ofdev.node;
+	dp = op->node;
+	bus_dp = dp->parent;
 
 	fmhz = of_getintprop_default(dp, "clock-frequency", 0);
 	if (fmhz == 0)
-		fmhz = (!bus_dp) ? 0 :
-			of_getintprop_default(bus_dp, "clock-frequency", 0);
+		fmhz = of_getintprop_default(bus_dp, "clock-frequency", 0);
 
 	esp->cfreq = fmhz;
 }
 
-static void __devinit esp_get_bursts(struct esp *esp, struct sbus_dev *dma)
+static void __devinit esp_get_bursts(struct esp *esp, struct of_device *dma_of)
 {
-	struct sbus_dev *sdev = esp->dev;
-	struct device_node *dp = sdev->ofdev.node;
-	u8 bursts;
+	struct device_node *dma_dp = dma_of->node;
+	struct of_device *op = esp->dev;
+	struct device_node *dp;
+	u8 bursts, val;
 
+	dp = op->node;
 	bursts = of_getintprop_default(dp, "burst-sizes", 0xff);
-	if (dma) {
-		struct device_node *dma_dp = dma->ofdev.node;
-		u8 val = of_getintprop_default(dma_dp, "burst-sizes", 0xff);
-		if (val != 0xff)
-			bursts &= val;
-	}
+	val = of_getintprop_default(dma_dp, "burst-sizes", 0xff);
+	if (val != 0xff)
+		bursts &= val;
 
-	if (sdev->bus) {
-		u8 val = of_getintprop_default(sdev->bus->ofdev.node,
-					       "burst-sizes", 0xff);
-		if (val != 0xff)
-			bursts &= val;
-	}
+	val = of_getintprop_default(dma_dp->parent, "burst-sizes", 0xff);
+	if (val != 0xff)
+		bursts &= val;
 
 	if (bursts == 0xff ||
 	    (bursts & DMA_BURST16) == 0 ||
@@ -194,9 +194,9 @@ static void __devinit esp_get_bursts(struct esp *esp, struct sbus_dev *dma)
 	esp->bursts = bursts;
 }
 
-static void __devinit esp_sbus_get_props(struct esp *esp, struct sbus_dev *espdma)
+static void __devinit esp_sbus_get_props(struct esp *esp, struct of_device *espdma)
 {
-	esp_get_scsi_id(esp);
+	esp_get_scsi_id(esp, espdma);
 	esp_get_differential(esp);
 	esp_get_clock_params(esp);
 	esp_get_bursts(esp, espdma);
@@ -215,25 +215,33 @@ static u8 sbus_esp_read8(struct esp *esp, unsigned long reg)
 static dma_addr_t sbus_esp_map_single(struct esp *esp, void *buf,
 				      size_t sz, int dir)
 {
-	return sbus_map_single(esp->dev, buf, sz, dir);
+	struct of_device *op = esp->dev;
+
+	return dma_map_single(&op->dev, buf, sz, dir);
 }
 
 static int sbus_esp_map_sg(struct esp *esp, struct scatterlist *sg,
 				  int num_sg, int dir)
 {
-	return sbus_map_sg(esp->dev, sg, num_sg, dir);
+	struct of_device *op = esp->dev;
+
+	return dma_map_sg(&op->dev, sg, num_sg, dir);
 }
 
 static void sbus_esp_unmap_single(struct esp *esp, dma_addr_t addr,
 				  size_t sz, int dir)
 {
-	sbus_unmap_single(esp->dev, addr, sz, dir);
+	struct of_device *op = esp->dev;
+
+	dma_unmap_single(&op->dev, addr, sz, dir);
 }
 
 static void sbus_esp_unmap_sg(struct esp *esp, struct scatterlist *sg,
 			      int num_sg, int dir)
 {
-	sbus_unmap_sg(esp->dev, sg, num_sg, dir);
+	struct of_device *op = esp->dev;
+
+	dma_unmap_sg(&op->dev, sg, num_sg, dir);
 }
 
 static int sbus_esp_irq_pending(struct esp *esp)
@@ -247,24 +255,26 @@ static void sbus_esp_reset_dma(struct esp *esp)
 {
 	int can_do_burst16, can_do_burst32, can_do_burst64;
 	int can_do_sbus64, lim;
+	struct of_device *op;
 	u32 val;
 
 	can_do_burst16 = (esp->bursts & DMA_BURST16) != 0;
 	can_do_burst32 = (esp->bursts & DMA_BURST32) != 0;
 	can_do_burst64 = 0;
 	can_do_sbus64 = 0;
-	if (sbus_can_dma_64bit(esp->dev))
+	op = esp->dev;
+	if (sbus_can_dma_64bit())
 		can_do_sbus64 = 1;
-	if (sbus_can_burst64(esp->sdev))
+	if (sbus_can_burst64())
 		can_do_burst64 = (esp->bursts & DMA_BURST64) != 0;
 
 	/* Put the DVMA into a known state. */
-	if (esp->dma->revision != dvmahme) {
+	if (esp->dmarev != dvmahme) {
 		val = dma_read32(DMA_CSR);
 		dma_write32(val | DMA_RST_SCSI, DMA_CSR);
 		dma_write32(val & ~DMA_RST_SCSI, DMA_CSR);
 	}
-	switch (esp->dma->revision) {
+	switch (esp->dmarev) {
 	case dvmahme:
 		dma_write32(DMA_RESET_FAS366, DMA_CSR);
 		dma_write32(DMA_RST_SCSI, DMA_CSR);
@@ -282,7 +292,7 @@ static void sbus_esp_reset_dma(struct esp *esp)
 
 		if (can_do_sbus64) {
 			esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64;
-			sbus_set_sbus64(esp->dev, esp->bursts);
+			sbus_set_sbus64(&op->dev, esp->bursts);
 		}
 
 		lim = 1000;
@@ -346,14 +356,14 @@ static void sbus_esp_dma_drain(struct esp *esp)
 	u32 csr;
 	int lim;
 
-	if (esp->dma->revision == dvmahme)
+	if (esp->dmarev == dvmahme)
 		return;
 
 	csr = dma_read32(DMA_CSR);
 	if (!(csr & DMA_FIFO_ISDRAIN))
 		return;
 
-	if (esp->dma->revision != dvmarev3 && esp->dma->revision != dvmaesc1)
+	if (esp->dmarev != dvmarev3 && esp->dmarev != dvmaesc1)
 		dma_write32(csr | DMA_FIFO_STDRAIN, DMA_CSR);
 
 	lim = 1000;
@@ -369,7 +379,7 @@ static void sbus_esp_dma_drain(struct esp *esp)
 
 static void sbus_esp_dma_invalidate(struct esp *esp)
 {
-	if (esp->dma->revision == dvmahme) {
+	if (esp->dmarev == dvmahme) {
 		dma_write32(DMA_RST_SCSI, DMA_CSR);
 
 		esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr |
@@ -440,7 +450,7 @@ static void sbus_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count,
 		else
 			csr &= ~DMA_ST_WRITE;
 		dma_write32(csr, DMA_CSR);
-		if (esp->dma->revision == dvmaesc1) {
+		if (esp->dmarev == dvmaesc1) {
 			u32 end = PAGE_ALIGN(addr + dma_count + 16U);
 			dma_write32(end - addr, DMA_COUNT);
 		}
@@ -476,10 +486,8 @@ static const struct esp_driver_ops sbus_esp_ops = {
 	.dma_error	=	sbus_esp_dma_error,
 };
 
-static int __devinit esp_sbus_probe_one(struct device *dev,
-					struct sbus_dev *esp_dev,
-					struct sbus_dev *espdma,
-					struct sbus_bus *sbus,
+static int __devinit esp_sbus_probe_one(struct of_device *op,
+					struct of_device *espdma,
 					int hme)
 {
 	struct scsi_host_template *tpnt = &scsi_esp_template;
@@ -497,13 +505,13 @@ static int __devinit esp_sbus_probe_one(struct device *dev,
 	esp = shost_priv(host);
 
 	esp->host = host;
-	esp->dev = esp_dev;
+	esp->dev = op;
 	esp->ops = &sbus_esp_ops;
 
 	if (hme)
 		esp->flags |= ESP_FLAG_WIDE_CAPABLE;
 
-	err = esp_sbus_find_dma(esp, espdma);
+	err = esp_sbus_setup_dma(esp, espdma);
 	if (err < 0)
 		goto fail_unlink;
 
@@ -525,15 +533,15 @@ static int __devinit esp_sbus_probe_one(struct device *dev,
 	 * come up with the reset bit set, so make sure that
 	 * is clear first.
 	 */
-	if (esp->dma->revision == dvmaesc1) {
+	if (esp->dmarev == dvmaesc1) {
 		u32 val = dma_read32(DMA_CSR);
 
 		dma_write32(val & ~DMA_RST_SCSI, DMA_CSR);
 	}
 
-	dev_set_drvdata(&esp_dev->ofdev.dev, esp);
+	dev_set_drvdata(&op->dev, esp);
 
-	err = scsi_esp_register(esp, dev);
+	err = scsi_esp_register(esp, &op->dev);
 	if (err)
 		goto fail_free_irq;
 
@@ -542,41 +550,46 @@ static int __devinit esp_sbus_probe_one(struct device *dev,
 fail_free_irq:
 	free_irq(host->irq, esp);
 fail_unmap_command_block:
-	sbus_free_consistent(esp->dev, 16,
-			     esp->command_block,
-			     esp->command_block_dma);
+	dma_free_coherent(&op->dev, 16,
+			  esp->command_block,
+			  esp->command_block_dma);
 fail_unmap_regs:
-	sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
+	of_iounmap(&op->resource[(hme ? 1 : 0)], esp->regs, SBUS_ESP_REG_SIZE);
 fail_unlink:
 	scsi_host_put(host);
 fail:
 	return err;
 }
 
-static int __devinit esp_sbus_probe(struct of_device *dev, const struct of_device_id *match)
+static int __devinit esp_sbus_probe(struct of_device *op, const struct of_device_id *match)
 {
-	struct sbus_dev *sdev = to_sbus_device(&dev->dev);
-	struct device_node *dp = dev->node;
-	struct sbus_dev *dma_sdev = NULL;
+	struct device_node *dma_node = NULL;
+	struct device_node *dp = op->node;
+	struct of_device *dma_of = NULL;
 	int hme = 0;
 
 	if (dp->parent &&
 	    (!strcmp(dp->parent->name, "espdma") ||
 	     !strcmp(dp->parent->name, "dma")))
-		dma_sdev = sdev->parent;
+		dma_node = dp->parent;
 	else if (!strcmp(dp->name, "SUNW,fas")) {
-		dma_sdev = sdev;
+		dma_node = op->node;
 		hme = 1;
 	}
+	if (dma_node)
+		dma_of = of_find_device_by_node(dma_node);
+	if (!dma_of)
+		return -ENODEV;
 
-	return esp_sbus_probe_one(&dev->dev, sdev, dma_sdev,
-				  sdev->bus, hme);
+	return esp_sbus_probe_one(op, dma_of, hme);
 }
 
-static int __devexit esp_sbus_remove(struct of_device *dev)
+static int __devexit esp_sbus_remove(struct of_device *op)
 {
-	struct esp *esp = dev_get_drvdata(&dev->dev);
+	struct esp *esp = dev_get_drvdata(&op->dev);
+	struct of_device *dma_of = esp->dma;
 	unsigned int irq = esp->host->irq;
+	bool is_hme;
 	u32 val;
 
 	scsi_esp_unregister(esp);
@@ -586,17 +599,25 @@ static int __devexit esp_sbus_remove(struct of_device *dev)
 	dma_write32(val & ~DMA_INT_ENAB, DMA_CSR);
 
 	free_irq(irq, esp);
-	sbus_free_consistent(esp->dev, 16,
-			     esp->command_block,
-			     esp->command_block_dma);
-	sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
+
+	is_hme = (esp->dmarev == dvmahme);
+
+	dma_free_coherent(&op->dev, 16,
+			  esp->command_block,
+			  esp->command_block_dma);
+	of_iounmap(&op->resource[(is_hme ? 1 : 0)], esp->regs,
+		   SBUS_ESP_REG_SIZE);
+	of_iounmap(&dma_of->resource[0], esp->dma_regs,
+		   resource_size(&dma_of->resource[0]));
 
 	scsi_host_put(esp->host);
 
+	dev_set_drvdata(&op->dev, NULL);
+
 	return 0;
 }
 
-static struct of_device_id esp_match[] = {
+static const struct of_device_id esp_match[] = {
 	{
 		.name = "SUNW,esp",
 	},
@@ -619,7 +640,7 @@ static struct of_platform_driver esp_sbus_driver = {
 
 static int __init sunesp_init(void)
 {
-	return of_register_driver(&esp_sbus_driver, &sbus_bus_type);
+	return of_register_driver(&esp_sbus_driver, &of_bus_type);
 }
 
 static void __exit sunesp_exit(void)