void au_sleep(void)
{
int cpuid = alchemy_get_cputype();
if (cpuid != ALCHEMY_CPU_UNKNOWN) {
save_core_regs();
if (cpuid <= ALCHEMY_CPU_AU1500)
alchemy_sleep_au1000();
else if (cpuid <= ALCHEMY_CPU_AU1200)
alchemy_sleep_au1550();
restore_core_regs();
}
}
int au_sleep(void)
{
unsigned long wakeup, flags;
extern void save_and_sleep(void);
spin_lock_irqsave(&pm_lock,flags);
save_core_regs();
flush_cache_all();
/** The code below is all system dependent and we should probably
** have a function call out of here to set this up. You need
** to configure the GPIO or timer interrupts that will bring
** you out of sleep.
** For testing, the TOY counter wakeup is useful.
**/
#if 0
au_writel(au_readl(SYS_PINSTATERD) & ~(1 << 11), SYS_PINSTATERD);
/* gpio 6 can cause a wake up event */
wakeup = au_readl(SYS_WAKEMSK);
wakeup &= ~(1 << 8); /* turn off match20 wakeup */
wakeup |= 1 << 6; /* turn on gpio 6 wakeup */
#else
/* For testing, allow match20 to wake us up.
*/
#ifdef SLEEP_TEST_TIMEOUT
wakeup_counter0_set(sleep_ticks);
#endif
wakeup = 1 << 8; /* turn on match20 wakeup */
wakeup = 0;
#endif
au_writel(1, SYS_WAKESRC); /* clear cause */
au_sync();
au_writel(wakeup, SYS_WAKEMSK);
au_sync();
save_and_sleep();
/* after a wakeup, the cpu vectors back to 0x1fc00000 so
* it's up to the boot code to get us back here.
*/
restore_core_regs();
spin_unlock_irqrestore(&pm_lock, flags);
return 0;
}
void au_sleep(void)
{
save_core_regs();
switch (alchemy_get_cputype()) {
case ALCHEMY_CPU_AU1000:
case ALCHEMY_CPU_AU1500:
case ALCHEMY_CPU_AU1100:
alchemy_sleep_au1000();
break;
case ALCHEMY_CPU_AU1550:
case ALCHEMY_CPU_AU1200:
alchemy_sleep_au1550();
break;
case ALCHEMY_CPU_AU1300:
alchemy_sleep_au1300();
break;
}
restore_core_regs();
}
void au_sleep(void)
{
save_core_regs();
au1xxx_save_and_sleep();
restore_core_regs();
}
