[ARM] 3488/1: make icedcc_putc do the right thing
Patch from Uwe Zeisberger
a) use coprocessor 14
b) make reading the dcc status volatile
Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 0af3772..ace3fb58 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -38,10 +38,10 @@
if (--i < 0)
return;
- asm("mrc p14, 0, %0, c0, c0, 0" : "=r" (status));
+ asm volatile ("mrc p14, 0, %0, c0, c0, 0" : "=r" (status));
} while (status & 2);
- asm("mcr p15, 0, %0, c1, c0, 0" : : "r" (ch));
+ asm("mcr p14, 0, %0, c1, c0, 0" : : "r" (ch));
}
#define putc(ch) icedcc_putc(ch)