Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

7 files changed, 202 insertions, 481 deletions

diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c
index d89f83f769f5..1cc706e11119 100644
--- a/drivers/sbus/char/bbc_envctrl.c
+++ b/drivers/sbus/char/bbc_envctrl.c
@@ -575,9 +575,9 @@ int bbc_envctrl_init(void)
         int devidx = 0;
 
         while ((echild = bbc_i2c_getdev(devidx++)) != NULL) {
-                if (!strcmp(echild->prom_name, "temperature"))
+                if (!strcmp(echild->prom_node->name, "temperature"))
                         attach_one_temp(echild, temp_index++);
-                if (!strcmp(echild->prom_name, "fan-control"))
+                if (!strcmp(echild->prom_node->name, "fan-control"))
                         attach_one_fan(echild, fan_index++);
         }
         if (temp_index != 0 && fan_index != 0) {
diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c
index 3e156e005f2e..73634371393b 100644
--- a/drivers/sbus/char/bbc_i2c.c
+++ b/drivers/sbus/char/bbc_i2c.c
@@ -423,7 +423,7 @@ static int __init bbc_present(void)
 
         for_each_ebus(ebus) {
                 for_each_ebusdev(edev, ebus) {
-                        if (!strcmp(edev->prom_name, "bbc"))
+                        if (!strcmp(edev->prom_node->name, "bbc"))
                                 return 1;
                 }
         }
@@ -446,7 +446,7 @@ static int __init bbc_i2c_init(void)
 
         for_each_ebus(ebus) {
                 for_each_ebusdev(edev, ebus) {
-                        if (!strcmp(edev->prom_name, "i2c")) {
+                        if (!strcmp(edev->prom_node->name, "i2c")) {
                                 if (!attach_one_i2c(edev, index))
                                         index++;
                         }
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index c3a51d1fae5d..d92bc8827a9e 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -184,7 +184,7 @@ static int __init d7s_init(void)
 
         for_each_ebus(ebus) {
                 for_each_ebusdev(edev, ebus) {
-                        if (!strcmp(edev->prom_name, D7S_OBPNAME))
+                        if (!strcmp(edev->prom_node->name, D7S_OBPNAME))
                                 goto ebus_done;
                 }
         }
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index 19e8eddf887a..cf97e9efe9b6 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -768,16 +768,14 @@ static void envctrl_set_mon(struct i2c_child_t *pchild,
  *                       decoding tables, monitor type, optional properties.
  * Return: None.
  */
-static void envctrl_init_adc(struct i2c_child_t *pchild, int node)
+static void envctrl_init_adc(struct i2c_child_t *pchild, struct device_node *dp)
 {
-        char chnls_desc[CHANNEL_DESC_SZ];
         int i = 0, len;
-        char *pos = chnls_desc;
+        char *pos;
+        unsigned int *pval;
 
         /* Firmware describe channels into a stream separated by a '\0'. */
-        len = prom_getproperty(node, "channels-description", chnls_desc,
-                               CHANNEL_DESC_SZ);
-        chnls_desc[CHANNEL_DESC_SZ - 1] = '\0';
+        pos = of_get_property(dp, "channels-description", &len);
 
         while (len > 0) {
                 int l = strlen(pos) + 1;
@@ -787,10 +785,13 @@ static void envctrl_init_adc(struct i2c_child_t *pchild, int node)
         }
 
         /* Get optional properties. */
-        len = prom_getproperty(node, "warning-temp", (char *)&warning_temperature,
-                               sizeof(warning_temperature));
-        len = prom_getproperty(node, "shutdown-temp", (char *)&shutdown_temperature,
-                               sizeof(shutdown_temperature));
+        pval = of_get_property(dp, "warning-temp", NULL);
+        if (pval)
+                warning_temperature = *pval;
+
+        pval = of_get_property(dp, "shutdown-temp", NULL);
+        if (pval)
+                shutdown_temperature = *pval;
 }
 
 /* Function Description: Initialize child device monitoring fan status.
@@ -864,21 +865,18 @@ static void envctrl_init_voltage_status(struct i2c_child_t *pchild)
 static void envctrl_init_i2c_child(struct linux_ebus_child *edev_child,
                                    struct i2c_child_t *pchild)
 {
-        int node, len, i, tbls_size = 0;
-
-        node = edev_child->prom_node;
+        int len, i, tbls_size = 0;
+        struct device_node *dp = edev_child->prom_node;
+        void *pval;
 
         /* Get device address. */
-        len = prom_getproperty(node, "reg",
-                               (char *) &(pchild->addr),
-                               sizeof(pchild->addr));
+        pval = of_get_property(dp, "reg", &len);
+        memcpy(&pchild->addr, pval, len);
 
         /* Get tables property.  Read firmware temperature tables. */
-        len = prom_getproperty(node, "translation",
-                               (char *) pchild->tblprop_array,
-                               (PCF8584_MAX_CHANNELS *
-                                sizeof(struct pcf8584_tblprop)));
-        if (len > 0) {
+        pval = of_get_property(dp, "translation", &len);
+        if (pval && len > 0) {
+                memcpy(pchild->tblprop_array, pval, len);
                 pchild->total_tbls = len / sizeof(struct pcf8584_tblprop);
                 for (i = 0; i < pchild->total_tbls; i++) {
                         if ((pchild->tblprop_array[i].size + pchild->tblprop_array[i].offset) > tbls_size) {
@@ -891,12 +889,12 @@ static void envctrl_init_i2c_child(struct linux_ebus_child *edev_child,
                         printk("envctrl: Failed to allocate table.\n");
                         return;
                 }
-                len = prom_getproperty(node, "tables",
-                                       (char *) pchild->tables, tbls_size);
-                if (len <= 0) {
+                pval = of_get_property(dp, "tables", &len);
+                if (!pval || len <= 0) {
                         printk("envctrl: Failed to get table.\n");
                         return;
                 }
+                memcpy(pchild->tables, pval, len);
         }
 
         /* SPARCengine ASM Reference Manual (ref. SMI doc 805-7581-04)
@@ -907,12 +905,11 @@ static void envctrl_init_i2c_child(struct linux_ebus_child *edev_child,
          * 'NULL' monitor type.
          */
         if (ENVCTRL_CPCI_IGNORED_NODE == pchild->addr) {
+                struct device_node *root_node;
                 int len;
-                char prop[56];
 
-                len = prom_getproperty(prom_root_node, "name", prop, sizeof(prop));
-                if (0 < len && (0 == strncmp(prop, "SUNW,UltraSPARC-IIi-cEngine", len)))
-                {
+                root_node = of_find_node_by_path("/");
+                if (!strcmp(root_node->name, "SUNW,UltraSPARC-IIi-cEngine")) {
                         for (len = 0; len < PCF8584_MAX_CHANNELS; ++len) {
                                 pchild->mon_type[len] = ENVCTRL_NOMON;
                         }
@@ -921,16 +918,14 @@ static void envctrl_init_i2c_child(struct linux_ebus_child *edev_child,
         }
 
         /* Get the monitor channels. */
-        len = prom_getproperty(node, "channels-in-use",
-                               (char *) pchild->chnl_array,
-                               (PCF8584_MAX_CHANNELS *
-                                sizeof(struct pcf8584_channel)));
+        pval = of_get_property(dp, "channels-in-use", &len);
+        memcpy(pchild->chnl_array, pval, len);
         pchild->total_chnls = len / sizeof(struct pcf8584_channel);
 
         for (i = 0; i < pchild->total_chnls; i++) {
                 switch (pchild->chnl_array[i].type) {
                 case PCF8584_TEMP_TYPE:
-                        envctrl_init_adc(pchild, node);
+                        envctrl_init_adc(pchild, dp);
                         break;
 
                 case PCF8584_GLOBALADDR_TYPE:
@@ -945,7 +940,7 @@ static void envctrl_init_i2c_child(struct linux_ebus_child *edev_child,
 
                 case PCF8584_VOLTAGE_TYPE:
                         if (pchild->i2ctype == I2C_ADC) {
-                                envctrl_init_adc(pchild,node);
+                                envctrl_init_adc(pchild,dp);
                         } else {
                                 envctrl_init_voltage_status(pchild);
                         }
@@ -1046,7 +1041,7 @@ static int __init envctrl_init(void)
 
         for_each_ebus(ebus) {
                 for_each_ebusdev(edev, ebus) {
-                        if (!strcmp(edev->prom_name, "bbc")) {
+                        if (!strcmp(edev->prom_node->name, "bbc")) {
                                 /* If we find a boot-bus controller node,
                                  * then this envctrl driver is not for us.
                                  */
@@ -1060,14 +1055,14 @@ static int __init envctrl_init(void)
          */
         for_each_ebus(ebus) {
                 for_each_ebusdev(edev, ebus) {
-                        if (!strcmp(edev->prom_name, "i2c")) {
+                        if (!strcmp(edev->prom_node->name, "i2c")) {
                                 i2c = ioremap(edev->resource[0].start, 0x2);
                                 for_each_edevchild(edev, edev_child) {
-                                        if (!strcmp("gpio", edev_child->prom_name)) {
+                                        if (!strcmp("gpio", edev_child->prom_node->name)) {
                                                 i2c_childlist[i].i2ctype = I2C_GPIO;
                                                 envctrl_init_i2c_child(edev_child, &(i2c_childlist[i++]));
                                         }
-                                        if (!strcmp("adc", edev_child->prom_name)) {
+                                        if (!strcmp("adc", edev_child->prom_node->name)) {
                                                 i2c_childlist[i].i2ctype = I2C_ADC;
                                                 envctrl_init_i2c_child(edev_child, &(i2c_childlist[i++]));
                                         }
diff --git a/drivers/sbus/char/flash.c b/drivers/sbus/char/flash.c
index 2beb3dded087..5ae684c011f8 100644
--- a/drivers/sbus/char/flash.c
+++ b/drivers/sbus/char/flash.c
@@ -192,9 +192,11 @@ static int __init flash_init(void)
         }
         if (!sdev) {
 #ifdef CONFIG_PCI
+                struct linux_prom_registers *ebus_regs;
+
                 for_each_ebus(ebus) {
                         for_each_ebusdev(edev, ebus) {
-                                if (!strcmp(edev->prom_name, "flashprom"))
+                                if (!strcmp(edev->prom_node->name, "flashprom"))
                                         goto ebus_done;
                         }
                 }
@@ -202,23 +204,23 @@ static int __init flash_init(void)
                 if (!edev)
                         return -ENODEV;
 
-                len = prom_getproperty(edev->prom_node, "reg", (void *)regs, sizeof(regs));
-                if ((len % sizeof(regs[0])) != 0) {
+                ebus_regs = of_get_property(edev->prom_node, "reg", &len);
+                if (!ebus_regs || (len % sizeof(regs[0])) != 0) {
                         printk("flash: Strange reg property size %d\n", len);
                         return -ENODEV;
                 }
 
-                nregs = len / sizeof(regs[0]);
+                nregs = len / sizeof(ebus_regs[0]);
 
                 flash.read_base = edev->resource[0].start;
-                flash.read_size = regs[0].reg_size;
+                flash.read_size = ebus_regs[0].reg_size;
 
                 if (nregs == 1) {
                         flash.write_base = edev->resource[0].start;
-                        flash.write_size = regs[0].reg_size;
+                        flash.write_size = ebus_regs[0].reg_size;
                 } else if (nregs == 2) {
                         flash.write_base = edev->resource[1].start;
-                        flash.write_size = regs[1].reg_size;
+                        flash.write_size = ebus_regs[1].reg_size;
                 } else {
                         printk("flash: Strange number of regs %d\n", nregs);
                         return -ENODEV;
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index 239e108b8ed1..cf5b476b5496 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -243,8 +243,8 @@ static int openprom_sunos_ioctl(struct inode * inode, struct file * file,
                                               ((int *) opp->oprom_array)[1]);
 
                         pcp = pdev->sysdata;
-                        if (pcp != NULL && pcp->prom_node != -1 && pcp->prom_node) {
-                                node = pcp->prom_node;
+                        if (pcp != NULL) {
+                                node = pcp->prom_node->node;
                                 data->current_node = node;
                                 *((int *)opp->oprom_array) = node;
                                 opp->oprom_size = sizeof(int);
diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c
index 5d30a3ebfccd..387a6aa8c020 100644
--- a/drivers/sbus/sbus.c
+++ b/drivers/sbus/sbus.c
@@ -1,7 +1,6 @@
-/* $Id: sbus.c,v 1.100 2002/01/24 15:36:24 davem Exp $
- * sbus.c:  SBus support routines.
+/* sbus.c: SBus support routines.
  *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1995, 2006 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/kernel.h>
@@ -14,237 +13,76 @@
 #include <asm/sbus.h>
 #include <asm/dma.h>
 #include <asm/oplib.h>
+#include <asm/prom.h>
+#include <asm/of_device.h>
 #include <asm/bpp.h>
 #include <asm/irq.h>
 
-struct sbus_bus *sbus_root = NULL;
+struct sbus_bus *sbus_root;
 
-static struct linux_prom_irqs irqs[PROMINTR_MAX] __initdata = { { 0 } };
-#ifdef CONFIG_SPARC32
-static int interrupts[PROMINTR_MAX] __initdata = { 0 };
-#endif
-
-#ifdef CONFIG_PCI
-extern int pcic_present(void);
-#endif
-
-/* Perhaps when I figure out more about the iommu we'll put a
- * device registration routine here that probe_sbus() calls to
- * setup the iommu for each Sbus.
- */
-
-/* We call this for each SBus device, and fill the structure based
- * upon the prom device tree.  We return the start of memory after
- * the things we have allocated.
- */
-
-/* #define DEBUG_FILL */
-
-static void __init fill_sbus_device(int prom_node, struct sbus_dev *sdev)
+static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev)
 {
-        unsigned long address, base;
+        unsigned long base;
+        void *pval;
         int len;
 
-        sdev->prom_node = prom_node;
-        prom_getstring(prom_node, "name",
-                       sdev->prom_name, sizeof(sdev->prom_name));
-        address = prom_getint(prom_node, "address");
-        len = prom_getproperty(prom_node, "reg",
-                               (char *) sdev->reg_addrs,
-                               sizeof(sdev->reg_addrs));
-        if (len == -1) {
-                sdev->num_registers = 0;
-                goto no_regs;
-        }
+        sdev->prom_node = dp->node;
+        strcpy(sdev->prom_name, dp->name);
 
-        if (len % sizeof(struct linux_prom_registers)) {
-                prom_printf("fill_sbus_device: proplen for regs of %s "
-                            " was %d, need multiple of %d\n",
-                            sdev->prom_name, len,
-                            (int) sizeof(struct linux_prom_registers));
-                prom_halt();
-        }
-        if (len > (sizeof(struct linux_prom_registers) * PROMREG_MAX)) {
-                prom_printf("fill_sbus_device: Too many register properties "
-                            "for device %s, len=%d\n",
-                            sdev->prom_name, len);
-                prom_halt();
-        }
-        sdev->num_registers = len / sizeof(struct linux_prom_registers);
-        sdev->ranges_applied = 0;
+        pval = of_get_property(dp, "reg", &len);
+        sdev->num_registers = 0;
+        if (pval) {
+                memcpy(sdev->reg_addrs, pval, len);
 
-        base = (unsigned long) sdev->reg_addrs[0].phys_addr;
+                sdev->num_registers =
+                        len / sizeof(struct linux_prom_registers);
 
-        /* Compute the slot number. */
-        if (base >= SUN_SBUS_BVADDR && sparc_cpu_model == sun4m) {
-                sdev->slot = sbus_dev_slot(base);
-        } else {
-                sdev->slot = sdev->reg_addrs[0].which_io;
-        }
+                base = (unsigned long) sdev->reg_addrs[0].phys_addr;
 
-no_regs:
-        len = prom_getproperty(prom_node, "ranges",
-                               (char *)sdev->device_ranges,
-                               sizeof(sdev->device_ranges));
-        if (len == -1) {
-                sdev->num_device_ranges = 0;
-                goto no_ranges;
-        }
-        if (len % sizeof(struct linux_prom_ranges)) {
-                prom_printf("fill_sbus_device: proplen for ranges of %s "
-                            " was %d, need multiple of %d\n",
-                            sdev->prom_name, len,
-                            (int) sizeof(struct linux_prom_ranges));
-                prom_halt();
-        }
-        if (len > (sizeof(struct linux_prom_ranges) * PROMREG_MAX)) {
-                prom_printf("fill_sbus_device: Too many range properties "
-                            "for device %s, len=%d\n",
-                            sdev->prom_name, len);
-                prom_halt();
+                /* Compute the slot number. */
+                if (base >= SUN_SBUS_BVADDR && sparc_cpu_model == sun4m)
+                        sdev->slot = sbus_dev_slot(base);
+                else
+                        sdev->slot = sdev->reg_addrs[0].which_io;
         }
-        sdev->num_device_ranges =
-                len / sizeof(struct linux_prom_ranges);
-
-no_ranges:
-        /* XXX Unfortunately, IRQ issues are very arch specific.
-         * XXX Pull this crud out into an arch specific area
-         * XXX at some point. -DaveM
-         */
-#ifdef CONFIG_SPARC64
-        len = prom_getproperty(prom_node, "interrupts",
-                               (char *) irqs, sizeof(irqs));
-        if (len == -1 || len == 0) {
-                sdev->irqs[0] = 0;
-                sdev->num_irqs = 0;
-        } else {
-                unsigned int pri = irqs[0].pri;
-
-                sdev->num_irqs = 1;
-                if (pri < 0x20)
-                        pri += sdev->slot * 8;
-
-                sdev->irqs[0] = sbus_build_irq(sdev->bus, pri);
+
+        pval = of_get_property(dp, "ranges", &len);
+        sdev->num_device_ranges = 0;
+        if (pval) {
+                memcpy(sdev->device_ranges, pval, len);
+                sdev->num_device_ranges =
+                        len / sizeof(struct linux_prom_ranges);
         }
-#endif /* CONFIG_SPARC64 */
-
-#ifdef CONFIG_SPARC32
-        len = prom_getproperty(prom_node, "intr",
-                               (char *)irqs, sizeof(irqs));
-        if (len != -1) {
-                sdev->num_irqs = len / 8;
-                if (sdev->num_irqs == 0) {
-                        sdev->irqs[0] = 0;
-                } else if (sparc_cpu_model == sun4d) {
-                        extern unsigned int sun4d_build_irq(struct sbus_dev *sdev, int irq);
-
-                        for (len = 0; len < sdev->num_irqs; len++)
-                                sdev->irqs[len] = sun4d_build_irq(sdev, irqs[len].pri);
-                } else {
-                        for (len = 0; len < sdev->num_irqs; len++)
-                                sdev->irqs[len] = irqs[len].pri;
-                }
-        } else {
-                /* No "intr" node found-- check for "interrupts" node.
-                 * This node contains SBus interrupt levels, not IPLs
-                 * as in "intr", and no vector values.  We convert 
-                 * SBus interrupt levels to PILs (platform specific).
-                 */
-                len = prom_getproperty(prom_node, "interrupts", 
-                                        (char *)interrupts, sizeof(interrupts));
-                if (len == -1) {
-                        sdev->irqs[0] = 0;
-                        sdev->num_irqs = 0;
-                } else {
-                        sdev->num_irqs = len / sizeof(int);
-                        for (len = 0; len < sdev->num_irqs; len++) {
-                                sdev->irqs[len] = sbint_to_irq(sdev, interrupts[len]);
-                        }
-                }
-        } 
-#endif /* CONFIG_SPARC32 */
-}
 
-/* This routine gets called from whoever needs the sbus first, to scan
- * the SBus device tree.  Currently it just prints out the devices
- * found on the bus and builds trees of SBUS structs and attached
- * devices.
- */
+        sbus_fill_device_irq(sdev);
 
-extern void iommu_init(int iommu_node, struct sbus_bus *sbus);
-extern void iounit_init(int sbi_node, int iounit_node, struct sbus_bus *sbus);
-void sun4_init(void);
-#ifdef CONFIG_SUN_AUXIO
-extern void auxio_probe(void);
-#endif
-
-static void __init sbus_do_child_siblings(int start_node,
-                                          struct sbus_dev *child,
-                                          struct sbus_dev *parent,
-                                          struct sbus_bus *sbus)
-{
-        struct sbus_dev *this_dev = child;
-        int this_node = start_node;
-
-        /* Child already filled in, just need to traverse siblings. */
-        child->child = NULL;
-        child->parent = parent;
-        while((this_node = prom_getsibling(this_node)) != 0) {
-                this_dev->next = kmalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
-                this_dev = this_dev->next;
-                this_dev->next = NULL;
-                this_dev->parent = parent;
-
-                this_dev->bus = sbus;
-                fill_sbus_device(this_node, this_dev);
-
-                if(prom_getchild(this_node)) {
-                        this_dev->child = kmalloc(sizeof(struct sbus_dev),
-                                                  GFP_ATOMIC);
-                        this_dev->child->bus = sbus;
-                        this_dev->child->next = NULL;
-                        fill_sbus_device(prom_getchild(this_node), this_dev->child);
-                        sbus_do_child_siblings(prom_getchild(this_node),
-                                               this_dev->child, this_dev, sbus);
-                } else {
-                        this_dev->child = NULL;
-                }
-        }
-}
+        sdev->ofdev.node = dp;
+        if (sdev->parent)
+                sdev->ofdev.dev.parent = &sdev->parent->ofdev.dev;
+        else
+                sdev->ofdev.dev.parent = &sdev->bus->ofdev.dev;
+        sdev->ofdev.dev.bus = &sbus_bus_type;
+        strcpy(sdev->ofdev.dev.bus_id, dp->path_component_name);
 
-/*
- * XXX This functions appears to be a distorted version of
- * prom_sbus_ranges_init(), with all sun4d stuff cut away.
- * Ask DaveM what is going on here, how is sun4d supposed to work... XXX
- */
-/* added back sun4d patch from Thomas Bogendoerfer - should be OK (crn) */
+        if (of_device_register(&sdev->ofdev) != 0)
+                printk(KERN_DEBUG "sbus: device registration error for %s!\n",
+                       sdev->ofdev.dev.bus_id);
+}
 
-static void __init sbus_bus_ranges_init(int parent_node, struct sbus_bus *sbus)
+static void __init sbus_bus_ranges_init(struct device_node *dp, struct sbus_bus *sbus)
 {
+        void *pval;
         int len;
 
-        len = prom_getproperty(sbus->prom_node, "ranges",
-                               (char *) sbus->sbus_ranges,
-                               sizeof(sbus->sbus_ranges));
-        if (len == -1 || len == 0) {
-                sbus->num_sbus_ranges = 0;
-                return;
-        }
-        sbus->num_sbus_ranges = len / sizeof(struct linux_prom_ranges);
-#ifdef CONFIG_SPARC32
-        if (sparc_cpu_model == sun4d) {
-                struct linux_prom_ranges iounit_ranges[PROMREG_MAX];
-                int num_iounit_ranges;
-
-                len = prom_getproperty(parent_node, "ranges",
-                                       (char *) iounit_ranges,
-                                       sizeof (iounit_ranges));
-                if (len != -1) {
-                        num_iounit_ranges = (len/sizeof(struct linux_prom_ranges));
-                        prom_adjust_ranges (sbus->sbus_ranges, sbus->num_sbus_ranges, iounit_ranges, num_iounit_ranges);
-                }
+        pval = of_get_property(dp, "ranges", &len);
+        sbus->num_sbus_ranges = 0;
+        if (pval) {
+                memcpy(sbus->sbus_ranges, pval, len);
+                sbus->num_sbus_ranges =
+                        len / sizeof(struct linux_prom_ranges);
+
+                sbus_arch_bus_ranges_init(dp->parent, sbus);
         }
-#endif
 }
 
 static void __init __apply_ranges_to_regs(struct linux_prom_ranges *ranges,
@@ -322,241 +160,127 @@ static void __init sbus_fixup_all_regs(struct sbus_dev *first_sdev)
         }
 }
 
-extern void register_proc_sparc_ioport(void);
-extern void firetruck_init(void);
+/* We preserve the "probe order" of these bus and device lists to give
+ * the same ordering as the old code.
+ */
+static void __init sbus_insert(struct sbus_bus *sbus, struct sbus_bus **root)
+{
+        while (*root)
+                root = &(*root)->next;
+        *root = sbus;
+        sbus->next = NULL;
+}
 
-#ifdef CONFIG_SUN4
-extern void sun4_dvma_init(void);
-#endif
+static void __init sdev_insert(struct sbus_dev *sdev, struct sbus_dev **root)
+{
+        while (*root)
+                root = &(*root)->next;
+        *root = sdev;
+        sdev->next = NULL;
+}
 
-static int __init sbus_init(void)
+static void __init walk_children(struct device_node *dp, struct sbus_dev *parent, struct sbus_bus *sbus)
 {
-        int nd, this_sbus, sbus_devs, topnd, iommund;
-        unsigned int sbus_clock;
-        struct sbus_bus *sbus;
-        struct sbus_dev *this_dev;
-        int num_sbus = 0;  /* How many did we find? */
+        dp = dp->child;
+        while (dp) {
+                struct sbus_dev *sdev;
 
-#ifdef CONFIG_SPARC32
-        register_proc_sparc_ioport();
-#endif
+                sdev = kzalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
+                if (sdev) {
+                        sdev_insert(sdev, &parent->child);
 
-#ifdef CONFIG_SUN4
-        sun4_dvma_init();
-        return 0;
-#endif
-
-        topnd = prom_getchild(prom_root_node);
-        
-        /* Finding the first sbus is a special case... */
-        iommund = 0;
-        if(sparc_cpu_model == sun4u) {
-                nd = prom_searchsiblings(topnd, "sbus");
-                if(nd == 0) {
-#ifdef CONFIG_PCI
-                        if (!pcic_present()) {
-                                prom_printf("Neither SBUS nor PCI found.\n");
-                                prom_halt();
-                        } else {
-#ifdef CONFIG_SPARC64
-                                firetruck_init();
-#endif
-                        }
-                        return 0;
-#else
-                        prom_printf("YEEE, UltraSparc sbus not found\n");
-                        prom_halt();
-#endif
-                }
-        } else if(sparc_cpu_model == sun4d) {
-                if((iommund = prom_searchsiblings(topnd, "io-unit")) == 0 ||
-                   (nd = prom_getchild(iommund)) == 0 ||
-                   (nd = prom_searchsiblings(nd, "sbi")) == 0) {
-                        panic("sbi not found");
-                }
-        } else if((nd = prom_searchsiblings(topnd, "sbus")) == 0) {
-                if((iommund = prom_searchsiblings(topnd, "iommu")) == 0 ||
-                   (nd = prom_getchild(iommund)) == 0 ||
-                   (nd = prom_searchsiblings(nd, "sbus")) == 0) {
-#ifdef CONFIG_PCI
-                        if (!pcic_present()) {
-                                prom_printf("Neither SBUS nor PCI found.\n");
-                                prom_halt();
-                        }
-                        return 0;
-#else
-                        /* No reason to run further - the data access trap will occur. */
-                        panic("sbus not found");
-#endif
+                        sdev->bus = sbus;
+                        sdev->parent = parent;
+
+                        fill_sbus_device(dp, sdev);
+
+                        walk_children(dp, sdev, sbus);
                 }
+                dp = dp->sibling;
         }
+}
 
-        /* Ok, we've found the first one, allocate first SBus struct
-         * and place in chain.
-         */
-        sbus = sbus_root = kmalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
-        sbus->next = NULL;
-        sbus->prom_node = nd;
-        this_sbus = nd;
+static void __init build_one_sbus(struct device_node *dp, int num_sbus)
+{
+        struct sbus_bus *sbus;
+        unsigned int sbus_clock;
+        struct device_node *dev_dp;
 
-        if(iommund && sparc_cpu_model != sun4u && sparc_cpu_model != sun4d)
-                iommu_init(iommund, sbus);
+        sbus = kzalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
+        if (!sbus)
+                return;
 
-        /* Loop until we find no more SBUS's */
-        while(this_sbus) {
-#ifdef CONFIG_SPARC64
-                /* IOMMU hides inside SBUS/SYSIO prom node on Ultra. */
-                if(sparc_cpu_model == sun4u) {
-                        extern void sbus_iommu_init(int prom_node, struct sbus_bus *sbus);
+        sbus_insert(sbus, &sbus_root);
+        sbus->prom_node = dp->node;
 
-                        sbus_iommu_init(this_sbus, sbus);
-                }
-#endif /* CONFIG_SPARC64 */
-
-#ifdef CONFIG_SPARC32
-                if (sparc_cpu_model == sun4d)
-                        iounit_init(this_sbus, iommund, sbus);
-#endif /* CONFIG_SPARC32 */
-                printk("sbus%d: ", num_sbus);
-                sbus_clock = prom_getint(this_sbus, "clock-frequency");
-                if(sbus_clock == -1)
-                        sbus_clock = (25*1000*1000);
-                printk("Clock %d.%d MHz\n", (int) ((sbus_clock/1000)/1000),
-                       (int) (((sbus_clock/1000)%1000 != 0) ? 
-                              (((sbus_clock/1000)%1000) + 1000) : 0));
-
-                prom_getstring(this_sbus, "name",
-                               sbus->prom_name, sizeof(sbus->prom_name));
-                sbus->clock_freq = sbus_clock;
-#ifdef CONFIG_SPARC32
-                if (sparc_cpu_model == sun4d) {
-                        sbus->devid = prom_getint(iommund, "device-id");
-                        sbus->board = prom_getint(iommund, "board#");
-                }
-#endif
-                
-                sbus_bus_ranges_init(iommund, sbus);
-
-                sbus_devs = prom_getchild(this_sbus);
-                if (!sbus_devs) {
-                        sbus->devices = NULL;
-                        goto next_bus;
-                }
+        sbus_setup_iommu(sbus, dp);
 
-                sbus->devices = kmalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
-
-                this_dev = sbus->devices;
-                this_dev->next = NULL;
-
-                this_dev->bus = sbus;
-                this_dev->parent = NULL;
-                fill_sbus_device(sbus_devs, this_dev);
-
-                /* Should we traverse for children? */
-                if(prom_getchild(sbus_devs)) {
-                        /* Allocate device node */
-                        this_dev->child = kmalloc(sizeof(struct sbus_dev),
-                                                  GFP_ATOMIC);
-                        /* Fill it */
-                        this_dev->child->bus = sbus;
-                        this_dev->child->next = NULL;
-                        fill_sbus_device(prom_getchild(sbus_devs),
-                                         this_dev->child);
-                        sbus_do_child_siblings(prom_getchild(sbus_devs),
-                                               this_dev->child,
-                                               this_dev,
-                                               sbus);
-                } else {
-                        this_dev->child = NULL;
-                }
+        printk("sbus%d: ", num_sbus);
 
-                while((sbus_devs = prom_getsibling(sbus_devs)) != 0) {
-                        /* Allocate device node */
-                        this_dev->next = kmalloc(sizeof(struct sbus_dev),
-                                                 GFP_ATOMIC);
-                        this_dev = this_dev->next;
-                        this_dev->next = NULL;
-
-                        /* Fill it */
-                        this_dev->bus = sbus;
-                        this_dev->parent = NULL;
-                        fill_sbus_device(sbus_devs, this_dev);
-
-                        /* Is there a child node hanging off of us? */
-                        if(prom_getchild(sbus_devs)) {
-                                /* Get new device struct */
-                                this_dev->child = kmalloc(sizeof(struct sbus_dev),
-                                                          GFP_ATOMIC);
-                                /* Fill it */
-                                this_dev->child->bus = sbus;
-                                this_dev->child->next = NULL;
-                                fill_sbus_device(prom_getchild(sbus_devs),
-                                                 this_dev->child);
-                                sbus_do_child_siblings(prom_getchild(sbus_devs),
-                                                       this_dev->child,
-                                                       this_dev,
-                                                       sbus);
-                        } else {
-                                this_dev->child = NULL;
-                        }
+        sbus_clock = of_getintprop_default(dp, "clock-frequency",
+                                           (25*1000*1000));
+        sbus->clock_freq = sbus_clock;
+
+        printk("Clock %d.%d MHz\n", (int) ((sbus_clock/1000)/1000),
+               (int) (((sbus_clock/1000)%1000 != 0) ? 
+                      (((sbus_clock/1000)%1000) + 1000) : 0));
+
+        strcpy(sbus->prom_name, dp->name);
+
+        sbus_setup_arch_props(sbus, dp);
+
+        sbus_bus_ranges_init(dp, sbus);
+
+        sbus->ofdev.node = dp;
+        sbus->ofdev.dev.parent = NULL;
+        sbus->ofdev.dev.bus = &sbus_bus_type;
+        strcpy(sbus->ofdev.dev.bus_id, dp->path_component_name);
+
+        if (of_device_register(&sbus->ofdev) != 0)
+                printk(KERN_DEBUG "sbus: device registration error for %s!\n",
+                       sbus->ofdev.dev.bus_id);
+
+        dev_dp = dp->child;
+        while (dev_dp) {
+                struct sbus_dev *sdev;
+
+                sdev = kzalloc(sizeof(struct sbus_dev), GFP_ATOMIC);
+                if (sdev) {
+                        sdev_insert(sdev, &sbus->devices);
+
+                        sdev->bus = sbus;
+                        sdev->parent = NULL;
+                        fill_sbus_device(dev_dp, sdev);
+
+                        walk_children(dev_dp, sdev, sbus);
                 }
+                dev_dp = dev_dp->sibling;
+        }
 
-                /* Walk all devices and apply parent ranges. */
-                sbus_fixup_all_regs(sbus->devices);
+        sbus_fixup_all_regs(sbus->devices);
 
-                dvma_init(sbus);
-        next_bus:
+        dvma_init(sbus);
+}
+
+static int __init sbus_init(void)
+{
+        struct device_node *dp;
+        const char *sbus_name = "sbus";
+        int num_sbus = 0;
+
+        if (sbus_arch_preinit())
+                return 0;
+
+        if (sparc_cpu_model == sun4d)
+                sbus_name = "sbi";
+
+        for_each_node_by_name(dp, sbus_name) {
+                build_one_sbus(dp, num_sbus);
                 num_sbus++;
-                if(sparc_cpu_model == sun4u) {
-                        this_sbus = prom_getsibling(this_sbus);
-                        if(!this_sbus)
-                                break;
-                        this_sbus = prom_searchsiblings(this_sbus, "sbus");
-                } else if(sparc_cpu_model == sun4d) {
-                        iommund = prom_getsibling(iommund);
-                        if(!iommund)
-                                break;
-                        iommund = prom_searchsiblings(iommund, "io-unit");
-                        if(!iommund)
-                                break;
-                        this_sbus = prom_searchsiblings(prom_getchild(iommund), "sbi");
-                } else {
-                        this_sbus = prom_getsibling(this_sbus);
-                        if(!this_sbus)
-                                break;
-                        this_sbus = prom_searchsiblings(this_sbus, "sbus");
-                }
-                if(this_sbus) {
-                        sbus->next = kmalloc(sizeof(struct sbus_bus), GFP_ATOMIC);
-                        sbus = sbus->next;
-                        sbus->next = NULL;
-                        sbus->prom_node = this_sbus;
-                } else {
-                        break;
-                }
-        } /* while(this_sbus) */
 
-        if (sparc_cpu_model == sun4d) {
-                extern void sun4d_init_sbi_irq(void);
-                sun4d_init_sbi_irq();
-        }
-        
-#ifdef CONFIG_SPARC64
-        if (sparc_cpu_model == sun4u) {
-                firetruck_init();
         }
-#endif
-#ifdef CONFIG_SUN_AUXIO
-        if (sparc_cpu_model == sun4u)
-                auxio_probe ();
-#endif
-#ifdef CONFIG_SPARC64
-        if (sparc_cpu_model == sun4u) {
-                extern void clock_probe(void);
-
-                clock_probe();
-        }
-#endif
+
+        sbus_arch_postinit();
 
         return 0;
 }