[U-Boot] [PATCH v2] [RFC] memsize.c: adapt get_ram_size() for address spaces >32 bit

[Wolfgang Denk]

get_ram_size() used to use "long" data types for addresses and data,
which limited it to systems with less than 4 GiB memory. As more and
more systems are coming up with bigger memory resources, we adapt the
code to use phys_addr_t / phys_size_t data types instead.

Signed-off-by: Wolfgang Denk <wd at denx.de>
Cc: Timur Tabi <timur at freescale.com>
---
Note: this is only minimally tested - I just compiled a dozen of ppc
boards with it without appearent problems. Please review and test
carefully.

v2: - fix commit message
    - change function prototype, too.

 common/memsize.c |   14 +++++++-------
 include/common.h |    2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/common/memsize.c b/common/memsize.c
index 6c275c9..b99e51b 100644
--- a/common/memsize.c
+++ b/common/memsize.c
@@ -37,14 +37,14 @@
  * the actually available RAM size between addresses `base' and
  * `base + maxsize'.
  */
-long get_ram_size(volatile long *base, long maxsize)
+phys_size_t get_ram_size(volatile phys_addr_t *base, phys_size_t maxsize)
 {
-	volatile long *addr;
-	long           save[32];
-	long           cnt;
-	long           val;
-	long           size;
-	int            i = 0;
+	volatile phys_addr_t *addr;
+	phys_size_t	save[32];
+	phys_size_t	cnt;
+	phys_size_t	val;
+	phys_size_t	size;
+	int		i = 0;
 
 	for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) {
 		addr = base + cnt;	/* pointer arith! */
diff --git a/include/common.h b/include/common.h
index 8bca04f..648e00f 100644
--- a/include/common.h
+++ b/include/common.h
@@ -316,7 +316,7 @@ const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
 void	api_init (void);
 
 /* common/memsize.c */
-long	get_ram_size  (volatile long *, long);
+phys_size_t get_ram_size(volatile phys_addr_t *, phys_size_t);
 
 /* $(BOARD)/$(BOARD).c */
 void	reset_phy     (void);
-- 
1.6.6.1