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sparc: Move core of OF device tree building code into prom_common.c

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-12-05 01:21:41 -08:00
parent 4aef8c53fe
commit 6524036a1e
4 changed files with 80 additions and 132 deletions
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57
arch/sparc/kernel/prom_common.c
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@@ -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;
}