static void hibernate_restart(void) {
uint32_t rtc_rtcsr,rtc_rtccr;
while(!(rtc_read_reg(RTC_RTCCR) & RTCCR_WRDY));
rtc_rtcsr = rtc_read_reg(RTC_RTCSR);
rtc_rtccr = rtc_read_reg(RTC_RTCCR);
rtc_write_reg(RTC_RTCSAR,rtc_rtcsr + 5);
rtc_rtccr &= ~(1 << 4);
rtc_write_reg(RTC_RTCCR,rtc_rtccr | 0x3<<2);
/* Clear reset status */
cpm_outl(0,CPM_RSR);
/* Set minimum wakeup_n pin low-level assertion time for wakeup: 1000ms */
rtc_write_reg(RTC_HWFCR, HWFCR_WAIT_TIME(1000));
/* Set reset pin low-level assertion time after wakeup: must > 60ms */
rtc_write_reg(RTC_HRCR, (125 << 5));
/* clear wakeup status register */
rtc_write_reg(RTC_HWRSR, 0x0);
rtc_write_reg(RTC_HWCR, 0x9);
/* Put CPU to hibernate mode */
rtc_write_reg(RTC_HCR, 0x1);
mdelay(200);
while(1)
printk("We should NOT come here.%08x\n",rtc_read_reg(RTC_HCR));
}
void jz_restart(char *command)
{
#if 1
printk("Restarting after 4ms\n");
REG_WDT_WCSR = WCSR_PRESCALE4 | WCSR_CLKIN_EXT;
REG_WDT_WCNT = 0;
REG_WDT_WDR = JZ_EXTAL / 1000; /* reset after 4ms */
REG_TCU_TSCR = TSCR_WDT; /* enable wdt clock */
REG_WDT_WCER = WCER_TCEN; /* wdt start */
#else
printk("Restarting after 1s\n");
/* clear wakeup status register */
rtc_write_reg(RTC_HWRSR, 0x0);
/* Scratch pad register to be reserved */
rtc_write_reg(RTC_HSPR, HSPR_RTCV);
/* RTC Alarm Wakeup Enable */
rtc_set_reg(RTC_HWCR, HWCR_EALM);
/* Set reset pin low-level assertion time after wakeup: must > 60ms */
rtc_write_reg(RTC_HRCR, HRCR_WAIT_TIME(60));
/* Set minimum wakeup_n pin low-level assertion time for wakeup: 100ms */
rtc_write_reg(RTC_HWFCR, HWFCR_WAIT_TIME(100));
rtc_write_reg(RTC_RTCSAR, rtc_read_reg(RTC_RTCSR) + 1);
rtc_set_reg(RTC_RTCCR, RTCCR_AIE | RTCCR_AE | RTCCR_RTCE); /* alarm enable, alarm interrupt enable */
/* Put CPU to hibernate mode */
rtc_write_reg(RTC_HCR, HCR_PD);
#endif
while (1);
}
void jz_hibernate(void)
{
local_irq_disable();
#ifdef CONFIG_BOARD_H600S
poweroff_inand();
#endif
/* Set minimum wakeup_n pin low-level assertion time for wakeup: 1000ms */
rtc_write_reg(RTC_HWFCR, HWFCR_WAIT_TIME(1000));
/* Set reset pin low-level assertion time after wakeup: must > 60ms */
rtc_write_reg(RTC_HRCR, (3 << 11));
/* clear wakeup status register */
rtc_write_reg(RTC_HWRSR, 0x0);
rtc_write_reg(RTC_HWCR, 0x8);
while(1) {
/* Put CPU to hibernate mode */
rtc_write_reg(RTC_HCR, 0x1);
jz_notifier_call(NOTEFY_PROI_HIGH, JZ_POST_HIBERNATION, NULL);
mdelay(200);
printk("We should NOT come here.%08x\n",inl(RTC_IOBASE + RTC_HCR));
}
}
