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authorDavid S. Miller <davem@davemloft.net>2008-12-05 01:21:41 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-05 18:15:03 -0800
commit6524036a1e5736a07466208362d83ddf31aae3ac (patch)
treedea250164424676bd19505adcbf6ae260559c403 /arch/sparc/kernel/prom_common.c
parent4aef8c53fe517542d8185b7d771f291865b49177 (diff)
downloadlinux-6524036a1e5736a07466208362d83ddf31aae3ac.tar.bz2
sparc: Move core of OF device tree building code into prom_common.c
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/prom_common.c')
-rw-r--r--arch/sparc/kernel/prom_common.c57
1 files changed, 55 insertions, 2 deletions
diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
index d3eddc76763d..3b5de2f3fcd1 100644
--- a/arch/sparc/kernel/prom_common.c
+++ b/arch/sparc/kernel/prom_common.c
@@ -216,8 +216,8 @@ static char * __init get_one_property(phandle node, const char *name)
return buf;
}
-struct device_node * __init create_node(phandle node,
- struct device_node *parent)
+struct device_node * __init prom_create_node(phandle node,
+ struct device_node *parent)
{
struct device_node *dp;
@@ -240,3 +240,56 @@ struct device_node * __init create_node(phandle node,
return dp;
}
+
+static char * __init build_full_name(struct device_node *dp)
+{
+ int len, ourlen, plen;
+ char *n;
+
+ plen = strlen(dp->parent->full_name);
+ ourlen = strlen(dp->path_component_name);
+ len = ourlen + plen + 2;
+
+ n = prom_early_alloc(len);
+ strcpy(n, dp->parent->full_name);
+ if (!is_root_node(dp->parent)) {
+ strcpy(n + plen, "/");
+ plen++;
+ }
+ strcpy(n + plen, dp->path_component_name);
+
+ return n;
+}
+
+struct device_node * __init prom_build_tree(struct device_node *parent,
+ phandle node,
+ struct device_node ***nextp)
+{
+ struct device_node *ret = NULL, *prev_sibling = NULL;
+ struct device_node *dp;
+
+ while (1) {
+ dp = prom_create_node(node, parent);
+ if (!dp)
+ break;
+
+ if (prev_sibling)
+ prev_sibling->sibling = dp;
+
+ if (!ret)
+ ret = dp;
+ prev_sibling = dp;
+
+ *(*nextp) = dp;
+ *nextp = &dp->allnext;
+
+ dp->path_component_name = build_path_component(dp);
+ dp->full_name = build_full_name(dp);
+
+ dp->child = prom_build_tree(dp, prom_getchild(node), nextp);
+
+ node = prom_getsibling(node);
+ }
+
+ return ret;
+}