diff options
Diffstat (limited to 'arch/blackfin/mach-common')
| -rw-r--r-- | arch/blackfin/mach-common/entry.S | 14 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/pm.c | 64 |
2 files changed, 12 insertions, 66 deletions
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 4e8e3fe0ba1..e7eb16355f7 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -397,8 +397,7 @@ ENTRY(_double_fault) R5 = [P4]; /* Control Register*/ BITCLR(R5,ENICPLB_P); - SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ - .align 8; + CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */ [P4] = R5; SSYNC; @@ -406,8 +405,7 @@ ENTRY(_double_fault) P4.H = HI(DMEM_CONTROL); R5 = [P4]; BITCLR(R5,ENDCPLB_P); - SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ - .align 8; + CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */ [P4] = R5; SSYNC; @@ -1146,9 +1144,7 @@ ENTRY(_early_trap) R5 = [P4]; /* Control Register*/ BITCLR(R5,ENICPLB_P); - CLI R1; - SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ - .align 8; + CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */ [P4] = R5; SSYNC; @@ -1156,11 +1152,9 @@ ENTRY(_early_trap) P4.H = HI(DMEM_CONTROL); R5 = [P4]; BITCLR(R5,ENDCPLB_P); - SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ - .align 8; + CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */ [P4] = R5; SSYNC; - STI R1; r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ r1 = RETX; diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c index 9e7e27b7fc8..0e3d4ff9d8b 100644 --- a/arch/blackfin/mach-common/pm.c +++ b/arch/blackfin/mach-common/pm.c @@ -38,6 +38,7 @@ #include <linux/io.h> #include <linux/irq.h> +#include <asm/cplb.h> #include <asm/gpio.h> #include <asm/dma.h> #include <asm/dpmc.h> @@ -170,58 +171,6 @@ static void flushinv_all_dcache(void) } #endif -static inline void dcache_disable(void) -{ -#ifdef CONFIG_BFIN_DCACHE - unsigned long ctrl; - -#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK) - flushinv_all_dcache(); -#endif - SSYNC(); - ctrl = bfin_read_DMEM_CONTROL(); - ctrl &= ~ENDCPLB; - bfin_write_DMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - -static inline void dcache_enable(void) -{ -#ifdef CONFIG_BFIN_DCACHE - unsigned long ctrl; - SSYNC(); - ctrl = bfin_read_DMEM_CONTROL(); - ctrl |= ENDCPLB; - bfin_write_DMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - -static inline void icache_disable(void) -{ -#ifdef CONFIG_BFIN_ICACHE - unsigned long ctrl; - SSYNC(); - ctrl = bfin_read_IMEM_CONTROL(); - ctrl &= ~ENICPLB; - bfin_write_IMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - -static inline void icache_enable(void) -{ -#ifdef CONFIG_BFIN_ICACHE - unsigned long ctrl; - SSYNC(); - ctrl = bfin_read_IMEM_CONTROL(); - ctrl |= ENICPLB; - bfin_write_IMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - int bfin_pm_suspend_mem_enter(void) { unsigned long flags; @@ -258,16 +207,19 @@ int bfin_pm_suspend_mem_enter(void) bfin_gpio_pm_hibernate_suspend(); - dcache_disable(); - icache_disable(); +#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK) + flushinv_all_dcache(); +#endif + _disable_dcplb(); + _disable_icplb(); bf53x_suspend_l1_mem(memptr); do_hibernate(wakeup | vr_wakeup); /* Goodbye */ bf53x_resume_l1_mem(memptr); - icache_enable(); - dcache_enable(); + _enable_icplb(); + _enable_dcplb(); bfin_gpio_pm_hibernate_restore(); blackfin_dma_resume(); |