powerpc/scom: Enable 64-bit addresses

On P8, XSCOM addresses has a special "indirect" form that
requires more than 32-bits, so let's use u64 everywhere in
the code instead of u32.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/powerpc/include/asm/scom.h b/arch/powerpc/include/asm/scom.h
index 07dcdcfdaefc..f5cde45b1161 100644
--- a/arch/powerpc/include/asm/scom.h
+++ b/arch/powerpc/include/asm/scom.h
@@ -54,8 +54,8 @@ struct scom_controller {
 	scom_map_t (*map)(struct device_node *ctrl_dev, u64 reg, u64 count);
 	void (*unmap)(scom_map_t map);
 
-	int (*read)(scom_map_t map, u32 reg, u64 *value);
-	int (*write)(scom_map_t map, u32 reg, u64 value);
+	int (*read)(scom_map_t map, u64 reg, u64 *value);
+	int (*write)(scom_map_t map, u64 reg, u64 value);
 };
 
 extern const struct scom_controller *scom_controller;
@@ -137,7 +137,7 @@ static inline void scom_unmap(scom_map_t map)
  *
  * Returns 0 (success) or a negative error code
  */
-static inline int scom_read(scom_map_t map, u32 reg, u64 *value)
+static inline int scom_read(scom_map_t map, u64 reg, u64 *value)
 {
 	int rc;
 
@@ -155,7 +155,7 @@ static inline int scom_read(scom_map_t map, u32 reg, u64 *value)
  *
  * Returns 0 (success) or a negative error code
  */
-static inline int scom_write(scom_map_t map, u32 reg, u64 value)
+static inline int scom_write(scom_map_t map, u64 reg, u64 value)
 {
 	return scom_controller->write(map, reg, value);
 }