Commit 2e3e31c0 authored by David Gibson's avatar David Gibson Committed by Linus Torvalds

rtc-ds1742.c should use resource_size_t for base address

Currently the rtc driver, rtc-ds1742.c uses an unsigned long to store the
base mmio address of the NVRAM/RTC.  This breaks on systems like PowerPC
440, which is a 32-bit core with 36-bit physical addresses: IO on the
system, including the RTC, is typically above the 4GB point, and cannot fit
into an unsigned long.

This patch fixes the problem by replacing the unsigned long with a
resource_size_t.  Tested on Ebony (PPC440) (with additional patches to
instantiate the ds1742 platform device appropriately).
Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Acked-by: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent efc63c4f
...@@ -55,7 +55,7 @@ struct rtc_plat_data { ...@@ -55,7 +55,7 @@ struct rtc_plat_data {
void __iomem *ioaddr_rtc; void __iomem *ioaddr_rtc;
size_t size_nvram; size_t size_nvram;
size_t size; size_t size;
unsigned long baseaddr; resource_size_t baseaddr;
unsigned long last_jiffies; unsigned long last_jiffies;
}; };
......
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