[PATCH] powerpc: Maple: request I/O resource.

Reserve the Maple RTC I/O resource.  Needed now we use genrtc.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/maple/time.c b/arch/powerpc/platforms/maple/time.c
index 40fc07a8e606..15846cc938ac 100644
--- a/arch/powerpc/platforms/maple/time.c
+++ b/arch/powerpc/platforms/maple/time.c
@@ -158,6 +158,11 @@ int maple_set_rtc_time(struct rtc_time *tm)
         return 0;
 }
 
+static struct resource rtc_iores = {
+        .name = "rtc",
+        .flags = IORESOURCE_BUSY,
+};
+
 unsigned long __init maple_get_boot_time(void)
 {
         struct rtc_time tm;
@@ -172,7 +177,11 @@ unsigned long __init maple_get_boot_time(void)
                 printk(KERN_INFO "Maple: No device node for RTC, assuming "
                        "legacy address (0x%x)\n", maple_rtc_addr);
         }
-        
+
+        rtc_iores.start = maple_rtc_addr;
+        rtc_iores.end = maple_rtc_addr + 7;
+        request_resource(&ioport_resource, &rtc_iores);
+
         maple_get_rtc_time(&tm);
         return mktime(tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
                       tm.tm_hour, tm.tm_min, tm.tm_sec);