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blackfin: mach-bf609: pm: cleanup bfin_deepsleep

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In bfin_deepsleep(), using register instead of local variable and remove
unused dpmc register read.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
This commit is contained in:
Steven Miao 2012-05-17 17:38:09 +08:00 committed by Bob Liu
parent 1d3dbda6ed
commit 5a84775e99
1 changed files with 7 additions and 8 deletions
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15
arch/blackfin/mach-bf609/pm.c
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@ -138,7 +138,6 @@ void bfin_deepsleep(unsigned long mask)
bfin_write32(DPM0_WAKE_EN, 0x10);
bfin_write32(DPM0_WAKE_POL, 0x10);
dpm0_ctl = bfin_read32(DPM0_CTL);
dpm0_ctl = 0x00000008;
bfin_write32(DPM0_CTL, dpm0_ctl);
SSYNC();
@ -149,13 +148,13 @@ void bfin_deepsleep(unsigned long mask)
);
#ifdef CONFIG_BFIN_PM_WAKEUP_TIME_BENCH
__asm__ __volatile__(
"%0 = 0;"
"CYCLES = %0;"
"CYCLES2 = %0;"
"%0 = SYSCFG;"
"BITSET(%0, 1);"
"SYSCFG = %0;"
: "=d,a" (dpm0_ctl) :
"R0 = 0;"
"CYCLES = R0;"
"CYCLES2 = R0;"
"R0 = SYSCFG;"
"BITSET(R0, 1);"
"SYSCFG = R0;"
: : : "R0"
);
#endif