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authorDale Farnsworth <dale@farnsworth.org>2008-12-17 10:09:06 +0000
committerPaul Mackerras <paulus@samba.org>2008-12-23 15:13:29 +1100
commit6f29c3298b18216198631cbee01c349adecb225d (patch)
tree3ca157092ef9c3092ca67babe401b5f2a80cef19 /arch/powerpc/kernel/machine_kexec_64.c
parent73753313884e8d063d9bf9d3e36325743ca006ba (diff)
powerpc/32: Setup OF properties for kdump
Refactor the setting of kdump OF properties, moving the common code from machine_kexec_64.c to machine_kexec.c where it can be used on both ppc64 and ppc32. This will be needed for kdump to work on ppc32 platforms. Signed-off-by: Dale Farnsworth <dale@farnsworth.org> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/machine_kexec_64.c')
-rw-r--r--arch/powerpc/kernel/machine_kexec_64.c56
1 files changed, 4 insertions, 52 deletions
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index a89bce834a51..49e705fcee6d 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -303,18 +303,18 @@ static struct property htab_size_prop = {
.value = &htab_size_bytes,
};
-static void __init export_htab_values(void)
+static int __init export_htab_values(void)
{
struct device_node *node;
struct property *prop;
/* On machines with no htab htab_address is NULL */
if (!htab_address)
- return;
+ return -ENODEV;
node = of_find_node_by_path("/chosen");
if (!node)
- return;
+ return -ENODEV;
/* remove any stale propertys so ours can be found */
prop = of_find_property(node, htab_base_prop.name, NULL);
@@ -329,54 +329,6 @@ static void __init export_htab_values(void)
prom_add_property(node, &htab_size_prop);
of_node_put(node);
-}
-
-static struct property crashk_base_prop = {
- .name = "linux,crashkernel-base",
- .length = sizeof(unsigned long),
- .value = &crashk_res.start,
-};
-
-static unsigned long crashk_size;
-
-static struct property crashk_size_prop = {
- .name = "linux,crashkernel-size",
- .length = sizeof(unsigned long),
- .value = &crashk_size,
-};
-
-static void __init export_crashk_values(void)
-{
- struct device_node *node;
- struct property *prop;
-
- node = of_find_node_by_path("/chosen");
- if (!node)
- return;
-
- /* There might be existing crash kernel properties, but we can't
- * be sure what's in them, so remove them. */
- prop = of_find_property(node, "linux,crashkernel-base", NULL);
- if (prop)
- prom_remove_property(node, prop);
-
- prop = of_find_property(node, "linux,crashkernel-size", NULL);
- if (prop)
- prom_remove_property(node, prop);
-
- if (crashk_res.start != 0) {
- prom_add_property(node, &crashk_base_prop);
- crashk_size = crashk_res.end - crashk_res.start + 1;
- prom_add_property(node, &crashk_size_prop);
- }
-
- of_node_put(node);
-}
-
-static int __init kexec_setup(void)
-{
- export_htab_values();
- export_crashk_values();
return 0;
}
-__initcall(kexec_setup);
+late_initcall(export_htab_values);