[POWERPC] Add mpc52xx_find_and_map_path(), refactor utility functions

Add helper routine mpc52xx_find_and_map_path(). Extract common code to
mpc52xx_map_node() and refactor mpc52xx_find_and_map().

Signed-off-by: Jan Wrobel <wrr@semihalf.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

2 files changed, 18 insertions, 4 deletions

diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c
index 3bc201e07e6b..74b4b4183842 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_common.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c
@@ -19,14 +19,12 @@
 #include <asm/mpc52xx.h>
 
 
-void __iomem *
-mpc52xx_find_and_map(const char *compatible)
+static void __iomem *
+mpc52xx_map_node(struct device_node *ofn)
 {
-        struct device_node *ofn;
         const u32 *regaddr_p;
         u64 regaddr64, size64;
 
-        ofn = of_find_compatible_node(NULL, NULL, compatible);
         if (!ofn)
                 return NULL;
 
@@ -42,8 +40,23 @@ mpc52xx_find_and_map(const char *compatible)
 
         return ioremap((u32)regaddr64, (u32)size64);
 }
+
+void __iomem *
+mpc52xx_find_and_map(const char *compatible)
+{
+        return mpc52xx_map_node(
+                of_find_compatible_node(NULL, NULL, compatible));
+}
+
 EXPORT_SYMBOL(mpc52xx_find_and_map);
 
+void __iomem *
+mpc52xx_find_and_map_path(const char *path)
+{
+        return mpc52xx_map_node(of_find_node_by_path(path));
+}
+
+EXPORT_SYMBOL(mpc52xx_find_and_map_path);
 
 /**
  *      mpc52xx_find_ipb_freq - Find the IPB bus frequency for a device
diff --git a/include/asm-powerpc/mpc52xx.h b/include/asm-powerpc/mpc52xx.h
index 764d997b4cde..8e428466a60f 100644
--- a/include/asm-powerpc/mpc52xx.h
+++ b/include/asm-powerpc/mpc52xx.h
@@ -249,6 +249,7 @@ struct mpc52xx_cdm {
 #ifndef __ASSEMBLY__
 
 extern void __iomem * mpc52xx_find_and_map(const char *);
+extern void __iomem * mpc52xx_find_and_map_path(const char *path);
 extern unsigned int mpc52xx_find_ipb_freq(struct device_node *node);
 extern void mpc5200_setup_xlb_arbiter(void);
 extern void mpc52xx_declare_of_platform_devices(void);