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authorAkira Takeuchi <takeuchi.akr@jp.panasonic.com>2010-10-27 18:28:55 +0200
committerDavid Howells <dhowells@redhat.com>2010-10-27 18:28:55 +0200
commit368dd5acd154b09c043cc4392a74da01599b37d5 (patch)
treedd94ae3d044f6e774dec2437613515bd6b46dacb /arch/mn10300/lib
parentMN10300: Delete idle_timestamp from irq_cpustat_t (diff)
downloadlinux-368dd5acd154b09c043cc4392a74da01599b37d5.tar.xz
linux-368dd5acd154b09c043cc4392a74da01599b37d5.zip
MN10300: And Panasonic AM34 subarch and implement SMP
Implement the Panasonic MN10300 AM34 CPU subarch and implement SMP support for MN10300. Also implement support for the MN2WS0060 processor and the ASB2364 evaluation board which are AM34 based. Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300/lib')
-rw-r--r--arch/mn10300/lib/delay.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/mn10300/lib/delay.c b/arch/mn10300/lib/delay.c
index fdf6f710f94e..8e7ceb8ba33d 100644
--- a/arch/mn10300/lib/delay.c
+++ b/arch/mn10300/lib/delay.c
@@ -38,14 +38,14 @@ EXPORT_SYMBOL(__delay);
*/
void __udelay(unsigned long usecs)
{
- signed long ioclk, stop;
+ unsigned long start, stop, cnt;
/* usecs * CLK / 1E6 */
stop = __muldiv64u(usecs, MN10300_TSCCLK, 1000000);
- stop = TMTSCBC - stop;
+ start = TMTSCBC;
do {
- ioclk = TMTSCBC;
- } while (stop < ioclk);
+ cnt = start - TMTSCBC;
+ } while (cnt < stop);
}
EXPORT_SYMBOL(__udelay);