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-rw-r--r--arch/blackfin/mach-common/pm.c62
1 files changed, 58 insertions, 4 deletions
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index 3c648a0..ca6655e 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -19,20 +19,33 @@
#include <asm/gpio.h>
#include <asm/dma.h>
#include <asm/dpmc.h>
+#include <asm/pm.h>
+#ifdef CONFIG_BF60x
+struct bfin_cpu_pm_fns *bfin_cpu_pm;
+#endif
void bfin_pm_suspend_standby_enter(void)
{
+#ifndef CONFIG_BF60x
bfin_pm_standby_setup();
+#endif
-#ifdef CONFIG_PM_BFIN_SLEEP_DEEPER
- sleep_deeper(bfin_sic_iwr[0], bfin_sic_iwr[1], bfin_sic_iwr[2]);
+#ifdef CONFIG_BF60x
+ bfin_cpu_pm->enter(PM_SUSPEND_STANDBY);
#else
+# ifdef CONFIG_PM_BFIN_SLEEP_DEEPER
+ sleep_deeper(bfin_sic_iwr[0], bfin_sic_iwr[1], bfin_sic_iwr[2]);
+# else
sleep_mode(bfin_sic_iwr[0], bfin_sic_iwr[1], bfin_sic_iwr[2]);
+# endif
#endif
+#ifndef CONFIG_BF60x
bfin_pm_standby_restore();
+#endif
+#ifndef CONFIG_BF60x
#ifdef SIC_IWR0
bfin_write_SIC_IWR0(IWR_DISABLE_ALL);
# ifdef SIC_IWR1
@@ -52,6 +65,8 @@ void bfin_pm_suspend_standby_enter(void)
#else
bfin_write_SIC_IWR(IWR_DISABLE_ALL);
#endif
+
+#endif
}
int bf53x_suspend_l1_mem(unsigned char *memptr)
@@ -83,10 +98,13 @@ int bf53x_resume_l1_mem(unsigned char *memptr)
}
#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
+# ifdef CONFIG_BF60x
+__attribute__((l1_text))
+# endif
static void flushinv_all_dcache(void)
{
- u32 way, bank, subbank, set;
- u32 status, addr;
+ register u32 way, bank, subbank, set;
+ register u32 status, addr;
u32 dmem_ctl = bfin_read_DMEM_CONTROL();
for (bank = 0; bank < 2; ++bank) {
@@ -133,6 +151,7 @@ int bfin_pm_suspend_mem_enter(void)
return -ENOMEM;
}
+#ifndef CONFIG_BF60x
wakeup = bfin_read_VR_CTL() & ~FREQ;
wakeup |= SCKELOW;
@@ -142,6 +161,7 @@ int bfin_pm_suspend_mem_enter(void)
#ifdef CONFIG_PM_BFIN_WAKE_GP
wakeup |= GPWE;
#endif
+#endif
ret = blackfin_dma_suspend();
@@ -159,7 +179,11 @@ int bfin_pm_suspend_mem_enter(void)
_disable_icplb();
bf53x_suspend_l1_mem(memptr);
+#ifndef CONFIG_BF60x
do_hibernate(wakeup | vr_wakeup); /* See you later! */
+#else
+ bfin_cpu_pm->enter(PM_SUSPEND_MEM);
+#endif
bf53x_resume_l1_mem(memptr);
@@ -223,9 +247,39 @@ static int bfin_pm_enter(suspend_state_t state)
return 0;
}
+#ifdef CONFIG_BFIN_PM_WAKEUP_TIME_BENCH
+void bfin_pm_end(void)
+{
+ u32 cycle, cycle2;
+ u64 usec64;
+ u32 usec;
+
+ __asm__ __volatile__ (
+ "1: %0 = CYCLES2\n"
+ "%1 = CYCLES\n"
+ "%2 = CYCLES2\n"
+ "CC = %2 == %0\n"
+ "if ! CC jump 1b\n"
+ : "=d,a" (cycle2), "=d,a" (cycle), "=d,a" (usec) : : "CC"
+ );
+
+ usec64 = ((u64)cycle2 << 32) + cycle;
+ do_div(usec64, get_cclk() / USEC_PER_SEC);
+ usec = usec64;
+ if (usec == 0)
+ usec = 1;
+
+ pr_info("PM: resume of kernel completes after %ld msec %03ld usec\n",
+ usec / USEC_PER_MSEC, usec % USEC_PER_MSEC);
+}
+#endif
+
static const struct platform_suspend_ops bfin_pm_ops = {
.enter = bfin_pm_enter,
.valid = bfin_pm_valid,
+#ifdef CONFIG_BFIN_PM_WAKEUP_TIME_BENCH
+ .end = bfin_pm_end,
+#endif
};
static int __init bfin_pm_init(void)