powerpc: Fix delay functions for 601 processors

My earlier merge of delay.h introduced a timebase-based udelay for
32-bit machines but also broke the 601, which doesn't have the
timebase register.  This fixes it by using the 601's RTC register on
the 601, and also moves __delay() and udelay() to be out-of-line in
arch/powerpc/kernel/time.c.  These functions aren't really performance
critical, after all.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 8 deletions

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index f6d84a75ed26..624a983a9676 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -27,14 +27,6 @@
 
         .text
 
-        .align  5
-_GLOBAL(__delay)
-        cmpwi   0,r3,0
-        mtctr   r3
-        beqlr
-1:      bdnz    1b
-        blr
-
 /*
  * This returns the high 64 bits of the product of two 64-bit numbers.
  */