[SPARC]: Port sparc64 in-kernel device tree code to sparc32.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 84 insertions, 80 deletions

diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index 5c3529ceb5d6..9d461da76399 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -20,6 +20,7 @@
 #include <asm/ebus.h>
 #include <asm/io.h>
 #include <asm/oplib.h>
+#include <asm/prom.h>
 #include <asm/bpp.h>
 
 struct linux_ebus *ebus_chain = NULL;
@@ -83,79 +84,81 @@ int __init ebus_blacklist_irq(char *name)
         return 0;
 }
 
-void __init fill_ebus_child(int node, struct linux_prom_registers *preg,
-                                struct linux_ebus_child *dev)
+void __init fill_ebus_child(struct device_node *dp,
+                            struct linux_ebus_child *dev)
 {
-        int regs[PROMREG_MAX];
-        int irqs[PROMREG_MAX];
-        char lbuf[128];
+        int *regs;
+        int *irqs;
         int i, len;
 
-        dev->prom_node = node;
-        prom_getstring(node, "name", lbuf, sizeof(lbuf));
-        strcpy(dev->prom_name, lbuf);
-
-        len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
-        if (len == -1) len = 0;
+        dev->prom_node = dp;
+        regs = of_get_property(dp, "reg", &len);
+        if (!regs)
+                len = 0;
         dev->num_addrs = len / sizeof(regs[0]);
 
         for (i = 0; i < dev->num_addrs; i++) {
                 if (regs[i] >= dev->parent->num_addrs) {
                         prom_printf("UGH: property for %s was %d, need < %d\n",
-                                    dev->prom_name, len, dev->parent->num_addrs);
+                                    dev->prom_node->name, len,
+                                    dev->parent->num_addrs);
                         panic(__FUNCTION__);
                 }
-                dev->resource[i].start = dev->parent->resource[regs[i]].start; /* XXX resource */
+
+                /* XXX resource */
+                dev->resource[i].start =
+                        dev->parent->resource[regs[i]].start;
         }
 
         for (i = 0; i < PROMINTR_MAX; i++)
                 dev->irqs[i] = PCI_IRQ_NONE;
 
-        if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_name)) != 0) {
+        if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
                 dev->num_irqs = 1;
-        } else if ((len = prom_getproperty(node, "interrupts",
-            (char *)&irqs, sizeof(irqs))) == -1 || len == 0) {
-                dev->num_irqs = 0;
-                dev->irqs[0] = 0;
-                if (dev->parent->num_irqs != 0) {
-                        dev->num_irqs = 1;
-                        dev->irqs[0] = dev->parent->irqs[0];
-/* P3 */ /* printk("EBUS: dev %s irq %d from parent\n", dev->prom_name, dev->irqs[0]); */
-                }
         } else {
-                dev->num_irqs = len / sizeof(irqs[0]);
-                if (irqs[0] == 0 || irqs[0] >= 8) {
-                        /*
-                         * XXX Zero is a valid pin number...
-                         * This works as long as Ebus is not wired to INTA#.
-                         */
-                        printk("EBUS: %s got bad irq %d from PROM\n",
-                            dev->prom_name, irqs[0]);
+                irqs = of_get_property(dp, "interrupts", &len);
+                if (!irqs) {
                         dev->num_irqs = 0;
                         dev->irqs[0] = 0;
+                        if (dev->parent->num_irqs != 0) {
+                                dev->num_irqs = 1;
+                                dev->irqs[0] = dev->parent->irqs[0];
+                        }
                 } else {
-                        dev->irqs[0] = pcic_pin_to_irq(irqs[0], dev->prom_name);
+                        dev->num_irqs = len / sizeof(irqs[0]);
+                        if (irqs[0] == 0 || irqs[0] >= 8) {
+                                /*
+                                 * XXX Zero is a valid pin number...
+                                 * This works as long as Ebus is not wired
+                                 * to INTA#.
+                                 */
+                                printk("EBUS: %s got bad irq %d from PROM\n",
+                                       dev->prom_node->name, irqs[0]);
+                                dev->num_irqs = 0;
+                                dev->irqs[0] = 0;
+                        } else {
+                                dev->irqs[0] =
+                                        pcic_pin_to_irq(irqs[0],
+                                                        dev->prom_node->name);
+                        }
                 }
         }
 }
 
-void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
+void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev)
 {
-        struct linux_prom_registers regs[PROMREG_MAX];
+        struct linux_prom_registers *regs;
         struct linux_ebus_child *child;
-        int irqs[PROMINTR_MAX];
-        char lbuf[128];
+        int *irqs;
         int i, n, len;
         unsigned long baseaddr;
 
-        dev->prom_node = node;
-        prom_getstring(node, "name", lbuf, sizeof(lbuf));
-        strcpy(dev->prom_name, lbuf);
+        dev->prom_node = dp;
 
-        len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
+        regs = of_get_property(dp, "reg", &len);
         if (len % sizeof(struct linux_prom_registers)) {
                 prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
-                            dev->prom_name, len,
+                            dev->prom_node->name, len,
                             (int)sizeof(struct linux_prom_registers));
                 panic(__FUNCTION__);
         }
@@ -197,7 +200,7 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
                         if ((baseaddr = (unsigned long) ioremap(baseaddr,
                             regs[i].reg_size)) == 0) {
                                 panic("ebus: unable to remap dev %s",
-                                    dev->prom_name);
+                                      dev->prom_node->name);
                         }
                 }
                 dev->resource[i].start = baseaddr;      /* XXX Unaligned */
@@ -206,29 +209,33 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
         for (i = 0; i < PROMINTR_MAX; i++)
                 dev->irqs[i] = PCI_IRQ_NONE;
 
-        if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_name)) != 0) {
+        if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
                 dev->num_irqs = 1;
-        } else if ((len = prom_getproperty(node, "interrupts",
-            (char *)&irqs, sizeof(irqs))) == -1 || len == 0) {
-                dev->num_irqs = 0;
-                if ((dev->irqs[0] = dev->bus->self->irq) != 0) {
-                         dev->num_irqs = 1;
-/* P3 */ /* printk("EBUS: child %s irq %d from parent\n", dev->prom_name, dev->irqs[0]); */
-                }
         } else {
-                dev->num_irqs = 1;  /* dev->num_irqs = len / sizeof(irqs[0]); */
-                if (irqs[0] == 0 || irqs[0] >= 8) {
-                        /* See above for the parent. XXX */
-                        printk("EBUS: %s got bad irq %d from PROM\n",
-                            dev->prom_name, irqs[0]);
+                irqs = of_get_property(dp, "interrupts", &len);
+                if (!irqs) {
                         dev->num_irqs = 0;
-                        dev->irqs[0] = 0;
+                        if ((dev->irqs[0] = dev->bus->self->irq) != 0) {
+                                dev->num_irqs = 1;
+/* P3 */ /* printk("EBUS: child %s irq %d from parent\n", dev->prom_name, dev->irqs[0]); */
+                        }
                 } else {
-                        dev->irqs[0] = pcic_pin_to_irq(irqs[0], dev->prom_name);
+                        dev->num_irqs = 1;  /* dev->num_irqs = len / sizeof(irqs[0]); */
+                        if (irqs[0] == 0 || irqs[0] >= 8) {
+                                /* See above for the parent. XXX */
+                                printk("EBUS: %s got bad irq %d from PROM\n",
+                                       dev->prom_node->name, irqs[0]);
+                                dev->num_irqs = 0;
+                                dev->irqs[0] = 0;
+                        } else {
+                                dev->irqs[0] =
+                                        pcic_pin_to_irq(irqs[0],
+                                                        dev->prom_node->name);
+                        }
                 }
         }
 
-        if ((node = prom_getchild(node))) {
+        if ((dp = dp->child) != NULL) {
                 dev->children = (struct linux_ebus_child *)
                         ebus_alloc(sizeof(struct linux_ebus_child));
 
@@ -236,9 +243,9 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
                 child->next = NULL;
                 child->parent = dev;
                 child->bus = dev->bus;
-                fill_ebus_child(node, &regs[0], child);
+                fill_ebus_child(dp, child);
 
-                while ((node = prom_getsibling(node)) != 0) {
+                while ((dp = dp->sibling) != NULL) {
                         child->next = (struct linux_ebus_child *)
                                 ebus_alloc(sizeof(struct linux_ebus_child));
 
@@ -246,51 +253,49 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
                         child->next = NULL;
                         child->parent = dev;
                         child->bus = dev->bus;
-                        fill_ebus_child(node, &regs[0], child);
+                        fill_ebus_child(dp, child);
                 }
         }
 }
 
 void __init ebus_init(void)
 {
-        struct linux_prom_pci_registers regs[PROMREG_MAX];
+        struct linux_prom_pci_registers *regs;
         struct linux_pbm_info *pbm;
         struct linux_ebus_device *dev;
         struct linux_ebus *ebus;
         struct ebus_system_entry *sp;
         struct pci_dev *pdev;
         struct pcidev_cookie *cookie;
-        char lbuf[128];
+        struct device_node *dp;
         unsigned long addr, *base;
         unsigned short pci_command;
-        int nd, len, ebusnd;
-        int reg, nreg;
+        int len, reg, nreg;
         int num_ebus = 0;
 
-        prom_getstring(prom_root_node, "name", lbuf, sizeof(lbuf));
+        dp = of_find_node_by_path("/");
         for (sp = ebus_blacklist; sp->esname != NULL; sp++) {
-                if (strcmp(lbuf, sp->esname) == 0) {
+                if (strcmp(dp->name, sp->esname) == 0) {
                         ebus_blackp = sp->ipt;
                         break;
                 }
         }
 
         pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, NULL);
-        if (!pdev) {
+        if (!pdev)
                 return;
-        }
+
         cookie = pdev->sysdata;
-        ebusnd = cookie->prom_node;
+        dp = cookie->prom_node;
 
         ebus_chain = ebus = (struct linux_ebus *)
                         ebus_alloc(sizeof(struct linux_ebus));
         ebus->next = NULL;
 
-        while (ebusnd) {
+        while (dp) {
+                struct device_node *nd;
 
-                prom_getstring(ebusnd, "name", lbuf, sizeof(lbuf));
-                ebus->prom_node = ebusnd;
-                strcpy(ebus->prom_name, lbuf);
+                ebus->prom_node = dp;
                 ebus->self = pdev;
                 ebus->parent = pbm = cookie->pbm;
 
@@ -299,9 +304,8 @@ void __init ebus_init(void)
                 pci_command |= PCI_COMMAND_MASTER;
                 pci_write_config_word(pdev, PCI_COMMAND, pci_command);
 
-                len = prom_getproperty(ebusnd, "reg", (void *)regs,
-                                       sizeof(regs));
-                if (len == 0 || len == -1) {
+                regs = of_get_property(dp, "reg", &len);
+                if (!regs) {
                         prom_printf("%s: can't find reg property\n",
                                     __FUNCTION__);
                         prom_halt();
@@ -317,7 +321,7 @@ void __init ebus_init(void)
                         *base++ = addr;
                 }
 
-                nd = prom_getchild(ebusnd);
+                nd = dp->child;
                 if (!nd)
                         goto next_ebus;
 
@@ -330,7 +334,7 @@ void __init ebus_init(void)
                 dev->bus = ebus;
                 fill_ebus_device(nd, dev);
 
-                while ((nd = prom_getsibling(nd)) != 0) {
+                while ((nd = nd->sibling) != NULL) {
                         dev->next = (struct linux_ebus_device *)
                                 ebus_alloc(sizeof(struct linux_ebus_device));
 
@@ -348,7 +352,7 @@ void __init ebus_init(void)
                         break;
 
                 cookie = pdev->sysdata;
-                ebusnd = cookie->prom_node;
+                dp = cookie->prom_node;
 
                 ebus->next = (struct linux_ebus *)
                         ebus_alloc(sizeof(struct linux_ebus));