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>

2 files changed, 5 insertions, 5 deletions

diff --git a/arch/powerpc/platforms/powernv/opal-xscom.c b/arch/powerpc/platforms/powernv/opal-xscom.c
index 3ed5c64..09a90d8 100644
--- a/arch/powerpc/platforms/powernv/opal-xscom.c
+++ b/arch/powerpc/platforms/powernv/opal-xscom.c
@@ -27,7 +27,7 @@
  */
 struct opal_scom_map {
 	uint32_t chip;
-	uint32_t addr;
+	uint64_t addr;
 };
 
 static scom_map_t opal_scom_map(struct device_node *dev, u64 reg, u64 count)
@@ -71,7 +71,7 @@ static int opal_xscom_err_xlate(int64_t rc)
 	}
 }
 
-static int opal_scom_read(scom_map_t map, u32 reg, u64 *value)
+static int opal_scom_read(scom_map_t map, u64 reg, u64 *value)
 {
 	struct opal_scom_map *m = map;
 	int64_t rc;
@@ -80,7 +80,7 @@ static int opal_scom_read(scom_map_t map, u32 reg, u64 *value)
 	return opal_xscom_err_xlate(rc);
 }
 
-static int opal_scom_write(scom_map_t map, u32 reg, u64 value)
+static int opal_scom_write(scom_map_t map, u64 reg, u64 value)
 {
 	struct opal_scom_map *m = map;
 	int64_t rc;
diff --git a/arch/powerpc/platforms/wsp/scom_wsp.c b/arch/powerpc/platforms/wsp/scom_wsp.c
index 54172c4..8928507 100644
--- a/arch/powerpc/platforms/wsp/scom_wsp.c
+++ b/arch/powerpc/platforms/wsp/scom_wsp.c
@@ -50,7 +50,7 @@ static void wsp_scom_unmap(scom_map_t map)
 	iounmap((void *)map);
 }
 
-static int wsp_scom_read(scom_map_t map, u32 reg, u64 *value)
+static int wsp_scom_read(scom_map_t map, u64 reg, u64 *value)
 {
 	u64 __iomem *addr = (u64 __iomem *)map;
 
@@ -59,7 +59,7 @@ static int wsp_scom_read(scom_map_t map, u32 reg, u64 *value)
 	return 0;
 }
 
-static int wsp_scom_write(scom_map_t map, u32 reg, u64 value)
+static int wsp_scom_write(scom_map_t map, u64 reg, u64 value)
 {
 	u64 __iomem *addr = (u64 __iomem *)map;