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[POWERPC] 40x decrementer fixes 

Allow generic_calibrate_decr to work for 40x platforms.  Given that the hardware
behavior is identical, this also changes the set_dec function to reload the PIT
on 40x to match the behavior 44x currently has.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
hifive-unleashed-5.1
Josh Boyer 2007-08-20 07:29:11 -05:00
parent 4d922c8dc3
commit aab69292e4
2 changed files with 2 additions and 2 deletions
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2
arch/powerpc/kernel/time.c
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@ -866,7 +866,7 @@ void __init generic_calibrate_decr(void)
"(not found)\n");
}
#ifdef CONFIG_BOOKE
#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
/* Set the time base to zero */
mtspr(SPRN_TBWL, 0);
mtspr(SPRN_TBWU, 0);

2
include/asm-powerpc/time.h
View File

@ -174,7 +174,7 @@ static inline unsigned int get_dec(void)
static inline void set_dec(int val)
{
#if defined(CONFIG_40x)
return; /* Have to let it auto-reload */
mtspr(SPRN_PIT, val);
#elif defined(CONFIG_8xx_CPU6)
set_dec_cpu6(val);
#else