From f619ddd4fe5e6da3c3e97fe21043a4233aa54aee Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 2 Aug 2010 08:51:07 +0000 Subject: [PATCH] Blackfin: dpmc: punt unnecessary RTC_ISTAT clearing 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 Signed-off-by: Mike Frysinger --- arch/blackfin/mach-common/dpmc_modes.S | 24 ------------------------ 1 file changed, 24 deletions(-) diff --git a/arch/blackfin/mach-common/dpmc_modes.S b/arch/blackfin/mach-common/dpmc_modes.S index b0371689605..5969d86836a 100644 --- a/arch/blackfin/mach-common/dpmc_modes.S +++ b/arch/blackfin/mach-common/dpmc_modes.S @@ -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); -- 2.11.4.GIT