From: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
arch/m32r/boot/compressed/m32r_sio.c | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)
diff -puN arch/m32r/boot/compressed/m32r_sio.c~m32r-support-m3a-2170mappi-iii-platform-fix arch/m32r/boot/compressed/m32r_sio.c
--- 25/arch/m32r/boot/compressed/m32r_sio.c~m32r-support-m3a-2170mappi-iii-platform-fix 2005-06-03 00:51:02.000000000 -0700
+++ 25-akpm/arch/m32r/boot/compressed/m32r_sio.c 2005-06-03 00:51:02.000000000 -0700
@@ -6,6 +6,7 @@
*/
#include <linux/config.h>
+#include <asm/processor.h>
static void putc(char c);
@@ -38,10 +39,12 @@ static int puts(const char *s)
static void putc(char c)
{
- while ((*BOOT_SIO0STS & 0x3) != 0x3) ;
+ while ((*BOOT_SIO0STS & 0x3) != 0x3)
+ cpu_relax();
if (c == '\n') {
*BOOT_SIO0TXB = '\r';
- while ((*BOOT_SIO0STS & 0x3) != 0x3) ;
+ while ((*BOOT_SIO0STS & 0x3) != 0x3)
+ cpu_relax();
}
*BOOT_SIO0TXB = c;
}
@@ -56,10 +59,12 @@ static void putc(char c)
static void putc(char c)
{
- while ((*SIO0STS & 0x1) == 0) ;
+ while ((*SIO0STS & 0x1) == 0)
+ cpu_relax();
if (c == '\n') {
*SIO0TXB = '\r';
- while ((*SIO0STS & 0x1) == 0) ;
+ while ((*SIO0STS & 0x1) == 0)
+ cpu_relax();
}
*SIO0TXB = c;
}
_