#include <linux/of.h>
#include <linux/of_pdt.h>
#include <asm/prom.h>
-#include <asm/oplib.h>
-void __initdata (*prom_build_more)(struct device_node *dp,
+static struct of_pdt_ops *of_pdt_prom_ops __initdata;
+
+void __initdata (*of_pdt_build_more)(struct device_node *dp,
struct device_node ***nextp);
#if defined(CONFIG_SPARC)
#endif /* !CONFIG_SPARC */
-static struct property * __init build_one_prop(phandle node, char *prev,
+static struct property * __init of_pdt_build_one_prop(phandle node, char *prev,
char *special_name,
void *special_val,
int special_len)
{
static struct property *tmp = NULL;
struct property *p;
- const char *name;
+ int err;
if (tmp) {
p = tmp;
p->value = prom_early_alloc(special_len);
memcpy(p->value, special_val, special_len);
} else {
- if (prev == NULL) {
- name = prom_firstprop(node, p->name);
- } else {
- name = prom_nextprop(node, prev, p->name);
- }
-
- if (!name || strlen(name) == 0) {
+ err = of_pdt_prom_ops->nextprop(node, prev, p->name);
+ if (err) {
tmp = p;
return NULL;
}
-#ifdef CONFIG_SPARC32
- strcpy(p->name, name);
-#endif
- p->length = prom_getproplen(node, p->name);
+ p->length = of_pdt_prom_ops->getproplen(node, p->name);
if (p->length <= 0) {
p->length = 0;
} else {
int len;
p->value = prom_early_alloc(p->length + 1);
- len = prom_getproperty(node, p->name, p->value,
- p->length);
+ len = of_pdt_prom_ops->getproperty(node, p->name,
+ p->value, p->length);
if (len <= 0)
p->length = 0;
((unsigned char *)p->value)[p->length] = '\0';
return p;
}
-static struct property * __init build_prop_list(phandle node)
+static struct property * __init of_pdt_build_prop_list(phandle node)
{
struct property *head, *tail;
- head = tail = build_one_prop(node, NULL,
+ head = tail = of_pdt_build_one_prop(node, NULL,
".node", &node, sizeof(node));
- tail->next = build_one_prop(node, NULL, NULL, NULL, 0);
+ tail->next = of_pdt_build_one_prop(node, NULL, NULL, NULL, 0);
tail = tail->next;
while(tail) {
- tail->next = build_one_prop(node, tail->name,
+ tail->next = of_pdt_build_one_prop(node, tail->name,
NULL, NULL, 0);
tail = tail->next;
}
return head;
}
-static char * __init get_one_property(phandle node, const char *name)
+static char * __init of_pdt_get_one_property(phandle node, const char *name)
{
char *buf = "<NULL>";
int len;
- len = prom_getproplen(node, name);
+ len = of_pdt_prom_ops->getproplen(node, name);
if (len > 0) {
buf = prom_early_alloc(len);
- len = prom_getproperty(node, name, buf, len);
+ len = of_pdt_prom_ops->getproperty(node, name, buf, len);
+ }
+
+ return buf;
+}
+
+static char * __init of_pdt_try_pkg2path(phandle node)
+{
+ char *res, *buf = NULL;
+ int len;
+
+ if (!of_pdt_prom_ops->pkg2path)
+ return NULL;
+
+ if (of_pdt_prom_ops->pkg2path(node, buf, 0, &len))
+ return NULL;
+ buf = prom_early_alloc(len + 1);
+ if (of_pdt_prom_ops->pkg2path(node, buf, len, &len)) {
+ pr_err("%s: package-to-path failed\n", __func__);
+ return NULL;
}
+ res = strrchr(buf, '/');
+ if (!res) {
+ pr_err("%s: couldn't find / in %s\n", __func__, buf);
+ return NULL;
+ }
+ return res+1;
+}
+
+/*
+ * When fetching the node's name, first try using package-to-path; if
+ * that fails (either because the arch hasn't supplied a PROM callback,
+ * or some other random failure), fall back to just looking at the node's
+ * 'name' property.
+ */
+static char * __init of_pdt_build_name(phandle node)
+{
+ char *buf;
+
+ buf = of_pdt_try_pkg2path(node);
+ if (!buf)
+ buf = of_pdt_get_one_property(node, "name");
+
return buf;
}
-static struct device_node * __init prom_create_node(phandle node,
+static struct device_node * __init of_pdt_create_node(phandle node,
struct device_node *parent)
{
struct device_node *dp;
kref_init(&dp->kref);
- dp->name = get_one_property(node, "name");
- dp->type = get_one_property(node, "device_type");
+ dp->name = of_pdt_build_name(node);
+ dp->type = of_pdt_get_one_property(node, "device_type");
dp->phandle = node;
- dp->properties = build_prop_list(node);
+ dp->properties = of_pdt_build_prop_list(node);
irq_trans_init(dp);
return dp;
}
-static char * __init build_full_name(struct device_node *dp)
+static char * __init of_pdt_build_full_name(struct device_node *dp)
{
int len, ourlen, plen;
char *n;
return n;
}
-static struct device_node * __init prom_build_tree(struct device_node *parent,
+static struct device_node * __init of_pdt_build_tree(struct device_node *parent,
phandle node,
struct device_node ***nextp)
{
struct device_node *dp;
while (1) {
- dp = prom_create_node(node, parent);
+ dp = of_pdt_create_node(node, parent);
if (!dp)
break;
#if defined(CONFIG_SPARC)
dp->path_component_name = build_path_component(dp);
#endif
- dp->full_name = build_full_name(dp);
+ dp->full_name = of_pdt_build_full_name(dp);
- dp->child = prom_build_tree(dp, prom_getchild(node), nextp);
+ dp->child = of_pdt_build_tree(dp,
+ of_pdt_prom_ops->getchild(node), nextp);
- if (prom_build_more)
- prom_build_more(dp, nextp);
+ if (of_pdt_build_more)
+ of_pdt_build_more(dp, nextp);
- node = prom_getsibling(node);
+ node = of_pdt_prom_ops->getsibling(node);
}
return ret;
}
-void __init of_pdt_build_devicetree(phandle root_node)
+void __init of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops)
{
struct device_node **nextp;
- allnodes = prom_create_node(root_node, NULL);
+ BUG_ON(!ops);
+ of_pdt_prom_ops = ops;
+
+ allnodes = of_pdt_create_node(root_node, NULL);
#if defined(CONFIG_SPARC)
allnodes->path_component_name = "";
#endif
allnodes->full_name = "/";
nextp = &allnodes->allnext;
- allnodes->child = prom_build_tree(allnodes,
- prom_getchild(allnodes->phandle),
- &nextp);
+ allnodes->child = of_pdt_build_tree(allnodes,
+ of_pdt_prom_ops->getchild(allnodes->phandle), &nextp);
}
projects / cascardo / linux.git / blobdiff