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powerpc/scom: Enable 64-bit addresses

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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>
This commit is contained in:
Benjamin Herrenschmidt 2013-10-10 19:18:02 +11:00
parent 44790a0b93
commit d7a88c7eb4
3 changed files with 9 additions and 9 deletions
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8
arch/powerpc/include/asm/scom.h
View File

@ -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);
}

6
arch/powerpc/platforms/powernv/opal-xscom.c
View File

@ -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;

4
arch/powerpc/platforms/wsp/scom_wsp.c
View File

@ -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;