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of: merge of_read_number() an of_read_ulong() 

Merge common code between Microblaze and PowerPC

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
hifive-unleashed-5.1
Grant Likely 2009-10-15 10:58:00 -06:00
parent 50436312f4
commit b6caf2ad7c
3 changed files with 23 additions and 32 deletions
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12
arch/microblaze/include/asm/prom.h
View File

@ -82,18 +82,6 @@ extern int release_OF_resource(struct device_node *node, int index);
* OF address retreival & translation
*/
/* Helper to read a big number; size is in cells (not bytes) */
static inline u64 of_read_number(const u32 *cell, int size)
{
u64 r = 0;
while (size--)
r = (r << 32) | *(cell++);
return r;
}
/* Like of_read_number, but we want an unsigned long result */
#define of_read_ulong(cell, size) of_read_number(cell, size)
/* Translate an OF address block into a CPU physical address
*/
extern u64 of_translate_address(struct device_node *np, const u32 *addr);

20
arch/powerpc/include/asm/prom.h
View File

@ -89,26 +89,6 @@ extern int release_OF_resource(struct device_node* node, int index);
* OF address retreival & translation
*/
/* Helper to read a big number; size is in cells (not bytes) */
static inline u64 of_read_number(const u32 *cell, int size)
{
u64 r = 0;
while (size--)
r = (r << 32) | *(cell++);
return r;
}
/* Like of_read_number, but we want an unsigned long result */
#ifdef CONFIG_PPC32
static inline unsigned long of_read_ulong(const u32 *cell, int size)
{
return cell[size-1];
}
#else
#define of_read_ulong(cell, size) of_read_number(cell, size)
#endif
/* Translate an OF address block into a CPU physical address
*/
extern u64 of_translate_address(struct device_node *np, const u32 *addr);

23
include/linux/of.h
View File

@ -79,6 +79,29 @@ set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
dn->pde = de;
}
/*
* OF address retreival & translation
*/
/* Helper to read a big number; size is in cells (not bytes) */
static inline u64 of_read_number(const u32 *cell, int size)
{
u64 r = 0;
while (size--)
r = (r << 32) | *(cell++);
return r;
}
/* Like of_read_number, but we want an unsigned long result */
#ifdef CONFIG_PPC32
static inline unsigned long of_read_ulong(const u32 *cell, int size)
{
return cell[size-1];
}
#else
#define of_read_ulong(cell, size) of_read_number(cell, size)
#endif
#include <asm/prom.h>
/* flag descriptions */