[SPARC64]: Use in-kernel PROM tree for EBUS and ISA.

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

1 files changed, 57 insertions, 87 deletions

diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c
index ae02c3820eab..8c8c5a491ad6 100644
--- a/arch/sparc64/kernel/isa.c
+++ b/arch/sparc64/kernel/isa.c
@@ -15,23 +15,19 @@ static void __init fatal_err(const char *reason)
 static void __init report_dev(struct sparc_isa_device *isa_dev, int child)
 {
         if (child)
-                printk(" (%s)", isa_dev->prom_name);
+                printk(" (%s)", isa_dev->prom_node->name);
         else
-                printk(" [%s", isa_dev->prom_name);
+                printk(" [%s", isa_dev->prom_node->name);
 }
 
-static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev,
-                                        struct linux_prom_registers *pregs,
-                                        int pregs_size)
+static struct linux_prom_registers * __init
+isa_dev_get_resource(struct sparc_isa_device *isa_dev)
 {
+        struct linux_prom_registers *pregs;
         unsigned long base, len;
         int prop_len;
 
-        prop_len = prom_getproperty(isa_dev->prom_node, "reg",
-                                    (char *) pregs, pregs_size);
-
-        if (prop_len <= 0)
-                return;
+        pregs = of_get_property(isa_dev->prom_node, "reg", &prop_len);
 
         /* Only the first one is interesting. */
         len = pregs[0].reg_size;
@@ -42,10 +38,12 @@ static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev,
         isa_dev->resource.start = base;
         isa_dev->resource.end   = (base + len - 1UL);
         isa_dev->resource.flags = IORESOURCE_IO;
-        isa_dev->resource.name  = isa_dev->prom_name;
+        isa_dev->resource.name  = isa_dev->prom_node->name;
 
         request_resource(&isa_dev->bus->parent->io_space,
                          &isa_dev->resource);
+
+        return pregs;
 }
 
 /* I can't believe they didn't put a real INO in the isa device
@@ -98,8 +96,8 @@ static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev,
 {
         int irq_prop;
 
-        irq_prop = prom_getintdefault(isa_dev->prom_node,
-                                      "interrupts", -1);
+        irq_prop = of_getintprop_default(isa_dev->prom_node,
+                                         "interrupts", -1);
         if (irq_prop <= 0) {
                 goto no_irq;
         } else {
@@ -141,16 +139,15 @@ no_irq:
 
 static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
 {
-        int node = prom_getchild(parent_isa_dev->prom_node);
+        struct device_node *dp = parent_isa_dev->prom_node->child;
 
-        if (node == 0)
+        if (!dp)
                 return;
 
         printk(" ->");
-        while (node != 0) {
-                struct linux_prom_registers regs[PROMREG_MAX];
+        while (dp) {
+                struct linux_prom_registers *regs;
                 struct sparc_isa_device *isa_dev;
-                int prop_len;
 
                 isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
                 if (!isa_dev) {
@@ -165,40 +162,24 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
                 parent_isa_dev->child = isa_dev;
 
                 isa_dev->bus = parent_isa_dev->bus;
-                isa_dev->prom_node = node;
-                prop_len = prom_getproperty(node, "name",
-                                            (char *) isa_dev->prom_name,
-                                            sizeof(isa_dev->prom_name));
-                if (prop_len <= 0) {
-                        fatal_err("cannot get child isa_dev OBP node name");
-                        prom_halt();
-                }
-
-                prop_len = prom_getproperty(node, "compatible",
-                                            (char *) isa_dev->compatible,
-                                            sizeof(isa_dev->compatible));
+                isa_dev->prom_node = dp;
 
-                /* Not having this is OK. */
-                if (prop_len <= 0)
-                        isa_dev->compatible[0] = '\0';
-
-                isa_dev_get_resource(isa_dev, regs, sizeof(regs));
+                regs = isa_dev_get_resource(isa_dev);
                 isa_dev_get_irq(isa_dev, regs);
 
                 report_dev(isa_dev, 1);
 
-                node = prom_getsibling(node);
+                dp = dp->sibling;
         }
 }
 
 static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
 {
-        int node = prom_getchild(isa_br->prom_node);
+        struct device_node *dp = isa_br->prom_node->child;
 
-        while (node != 0) {
-                struct linux_prom_registers regs[PROMREG_MAX];
+        while (dp) {
+                struct linux_prom_registers *regs;
                 struct sparc_isa_device *isa_dev;
-                int prop_len;
 
                 isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
                 if (!isa_dev) {
@@ -222,24 +203,9 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
                 }
 
                 isa_dev->bus = isa_br;
-                isa_dev->prom_node = node;
-                prop_len = prom_getproperty(node, "name",
-                                            (char *) isa_dev->prom_name,
-                                            sizeof(isa_dev->prom_name));
-                if (prop_len <= 0) {
-                        fatal_err("cannot get isa_dev OBP node name");
-                        prom_halt();
-                }
-
-                prop_len = prom_getproperty(node, "compatible",
-                                            (char *) isa_dev->compatible,
-                                            sizeof(isa_dev->compatible));
-
-                /* Not having this is OK. */
-                if (prop_len <= 0)
-                        isa_dev->compatible[0] = '\0';
+                isa_dev->prom_node = dp;
 
-                isa_dev_get_resource(isa_dev, regs, sizeof(regs));
+                regs = isa_dev_get_resource(isa_dev);
                 isa_dev_get_irq(isa_dev, regs);
 
                 report_dev(isa_dev, 0);
@@ -248,10 +214,40 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
 
                 printk("]");
 
-                node = prom_getsibling(node);
+                dp = dp->sibling;
         }
 }
 
+static void __init get_bridge_props(struct sparc_isa_bridge *isa_br)
+{
+        struct device_node *dp = isa_br->prom_node;
+        void *pval;
+        int len;
+
+        pval = of_get_property(dp, "ranges", &len);
+        if (pval) {
+                memcpy(isa_br->isa_ranges, pval, len);
+                isa_br->num_isa_ranges =
+                        len / sizeof(struct linux_prom_isa_ranges);
+        } else {
+                isa_br->num_isa_ranges = 0;
+        }
+
+        pval = of_get_property(dp, "interrupt-map", &len);
+        if (pval) {
+                memcpy(isa_br->isa_intmap, pval, len);
+                isa_br->num_isa_intmap =
+                        (len / sizeof(struct linux_prom_isa_intmap));
+        } else {
+                isa_br->num_isa_intmap = 0;
+        }
+
+        pval = of_get_property(dp, "interrupt-map-mask", &len);
+        if (pval)
+                memcpy(&isa_br->isa_intmask, pval,
+                       sizeof(isa_br->isa_intmask));
+}
+
 void __init isa_init(void)
 {
         struct pci_dev *pdev;
@@ -266,7 +262,6 @@ void __init isa_init(void)
                 struct pcidev_cookie *pdev_cookie;
                 struct pci_pbm_info *pbm;
                 struct sparc_isa_bridge *isa_br;
-                int prop_len;
 
                 pdev_cookie = pdev->sysdata;
                 if (!pdev_cookie) {
@@ -291,34 +286,9 @@ void __init isa_init(void)
                 isa_br->parent = pbm;
                 isa_br->self = pdev;
                 isa_br->index = index++;
-                isa_br->prom_node = pdev_cookie->prom_node->node;
-                strncpy(isa_br->prom_name, pdev_cookie->prom_node->name,
-                        sizeof(isa_br->prom_name));
-
-                prop_len = prom_getproperty(isa_br->prom_node,
-                                            "ranges",
-                                            (char *) isa_br->isa_ranges,
-                                            sizeof(isa_br->isa_ranges));
-                if (prop_len <= 0)
-                        isa_br->num_isa_ranges = 0;
-                else
-                        isa_br->num_isa_ranges =
-                                (prop_len / sizeof(struct linux_prom_isa_ranges));
-
-                prop_len = prom_getproperty(isa_br->prom_node,
-                                            "interrupt-map",
-                                            (char *) isa_br->isa_intmap,
-                                            sizeof(isa_br->isa_intmap));
-                if (prop_len <= 0)
-                        isa_br->num_isa_intmap = 0;
-                else
-                        isa_br->num_isa_intmap =
-                                (prop_len / sizeof(struct linux_prom_isa_intmap));
-
-                prop_len = prom_getproperty(isa_br->prom_node,
-                                            "interrupt-map-mask",
-                                            (char *) &(isa_br->isa_intmask),
-                                            sizeof(isa_br->isa_intmask));
+                isa_br->prom_node = pdev_cookie->prom_node;
+
+                get_bridge_props(isa_br);
 
                 printk("isa%d:", isa_br->index);