of/flattree: merge of_get_flat_dt_prop

Merge common code between PowerPC and Microblaze

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Michal Simek <monstr@monstr.eu>

diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 7eb6f8bdb81aa243547a91d5c3fbb50d96bd7b8e..d75c6253c0de8ab484422c081bbf932acb56af56 100644 (file)
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -50,48 +50,6 @@ typedef u32 cell_t;
 /* export that to outside world */
 struct device_node *of_chosen;
 
-/**
- * This function can be used within scan_flattened_dt callback to get
- * access to properties
- */
-void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
-                               unsigned long *size)
-{
-       unsigned long p = node;
-
-       do {
-               u32 tag = *((u32 *)p);
-               u32 sz, noff;
-               const char *nstr;
-
-               p += 4;
-               if (tag == OF_DT_NOP)
-                       continue;
-               if (tag != OF_DT_PROP)
-                       return NULL;
-
-               sz = *((u32 *)p);
-               noff = *((u32 *)(p + 4));
-               p += 8;
-               if (initial_boot_params->version < 0x10)
-                       p = _ALIGN(p, sz >= 8 ? 8 : 4);
-
-               nstr = find_flat_dt_string(noff);
-               if (nstr == NULL) {
-                       printk(KERN_WARNING "Can't find property index"
-                               " name !\n");
-                       return NULL;
-               }
-               if (strcmp(name, nstr) == 0) {
-                       if (size)
-                               *size = sz;
-                       return (void *)p;
-               }
-               p += sz;
-               p = _ALIGN(p, 4);
-       } while (1);
-}
-
 int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
 {
        const char *cp;

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index b5d5f85e9c2cbd48ca18a881cf6787b50289bb9a..cd0a2bfc978b10d520985eac54c1ef91514e810f 100644 (file)
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -80,48 +80,6 @@ extern rwlock_t devtree_lock;        /* temporary while merging */
 /* export that to outside world */
 struct device_node *of_chosen;
 
-/**
- * This  function can be used within scan_flattened_dt callback to get
- * access to properties
- */
-void* __init of_get_flat_dt_prop(unsigned long node, const char *name,
-                                unsigned long *size)
-{
-       unsigned long p = node;
-
-       do {
-               u32 tag = *((u32 *)p);
-               u32 sz, noff;
-               const char *nstr;
-
-               p += 4;
-               if (tag == OF_DT_NOP)
-                       continue;
-               if (tag != OF_DT_PROP)
-                       return NULL;
-
-               sz = *((u32 *)p);
-               noff = *((u32 *)(p + 4));
-               p += 8;
-               if (initial_boot_params->version < 0x10)
-                       p = _ALIGN(p, sz >= 8 ? 8 : 4);
-
-               nstr = find_flat_dt_string(noff);
-               if (nstr == NULL) {
-                       printk(KERN_WARNING "Can't find property index"
-                              " name !\n");
-                       return NULL;
-               }
-               if (strcmp(name, nstr) == 0) {
-                       if (size)
-                               *size = sz;
-                       return (void *)p;
-               }
-               p += sz;
-               p = _ALIGN(p, 4);
-       } while(1);
-}
-
 int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
 {
        const char* cp;

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index f41d739aa2f729cec98950d644e3eef531593f37..b17a9086cbfc9f4dd523cd41329205d55b796b85 100644 (file)
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -99,3 +99,46 @@ unsigned long __init of_get_flat_dt_root(void)
        return _ALIGN(p + strlen((char *)p) + 1, 4);
 }
 
+/**
+ * of_get_flat_dt_prop - Given a node in the flat blob, return the property ptr
+ *
+ * This function can be used within scan_flattened_dt callback to get
+ * access to properties
+ */
+void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
+                                unsigned long *size)
+{
+       unsigned long p = node;
+
+       do {
+               u32 tag = *((u32 *)p);
+               u32 sz, noff;
+               const char *nstr;
+
+               p += 4;
+               if (tag == OF_DT_NOP)
+                       continue;
+               if (tag != OF_DT_PROP)
+                       return NULL;
+
+               sz = *((u32 *)p);
+               noff = *((u32 *)(p + 4));
+               p += 8;
+               if (initial_boot_params->version < 0x10)
+                       p = _ALIGN(p, sz >= 8 ? 8 : 4);
+
+               nstr = find_flat_dt_string(noff);
+               if (nstr == NULL) {
+                       pr_warning("Can't find property index name !\n");
+                       return NULL;
+               }
+               if (strcmp(name, nstr) == 0) {
+                       if (size)
+                               *size = sz;
+                       return (void *)p;
+               }
+               p += sz;
+               p = _ALIGN(p, 4);
+       } while (1);
+}
+