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Blackfin: dpmc: punt unnecessary RTC_ISTAT clearing

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The RTC ISTAT bits do not affect wakeups, and the RTC driver already
takes care of clearing this MMR when necessary.  So drop the useless
clearing in the core Blackfin power code.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Michael Hennerich 2010-08-02 08:51:07 +00:00 • committed by Mike Frysinger
parent 3975032405
commit f619ddd4fe
1 changed files with 0 additions and 24 deletions
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24
arch/blackfin/mach-common/dpmc_modes.S
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@ -17,9 +17,6 @@ ENTRY(_sleep_mode)
call _set_sic_iwr;
R0 = 0xFFFF (Z);
call _set_rtc_istat;
P0.H = hi(PLL_CTL);
P0.L = lo(PLL_CTL);
R1 = W[P0](z);
@ -65,9 +62,6 @@ ENTRY(_hibernate_mode)
call _set_dram_srfs;
SSYNC;
R0 = 0xFFFF (Z);
call _set_rtc_istat;
P0.H = hi(VR_CTL);
P0.L = lo(VR_CTL);
@ -95,9 +89,6 @@ ENTRY(_sleep_deeper)
call _set_sic_iwr;
call _set_dram_srfs; /* Set SDRAM Self Refresh */
/* Clear all the interrupts,bits sticky */
R0 = 0xFFFF (Z);
call _set_rtc_istat;
P0.H = hi(PLL_DIV);
P0.L = lo(PLL_DIV);
R6 = W[P0](z);
@ -269,21 +260,6 @@ ENTRY(_set_sic_iwr)
RTS;
ENDPROC(_set_sic_iwr)
ENTRY(_set_rtc_istat)
#ifndef CONFIG_BF561
P0.H = hi(RTC_ISTAT);
P0.L = lo(RTC_ISTAT);
w[P0] = R0.L;
SSYNC;
#elif (ANOMALY_05000371)
nop;
nop;
nop;
nop;
#endif
RTS;
ENDPROC(_set_rtc_istat)
ENTRY(_test_pll_locked)
P0.H = hi(PLL_STAT);
P0.L = lo(PLL_STAT);