int rtc_ioctl(unsigned int cmd, unsigned long arg)
{
struct timeval power_ic_time;
struct timeval * usr_spc_time_val = (struct timeval *)arg;
int err = 0;
/* Handle the request. */
switch(cmd)
{
case POWER_IC_IOCTL_GET_TIME:
/* Read the TOD and DAY registers and set the data in the timeval
structure to the format the Linux uses.*/
err = power_ic_rtc_get_time(&power_ic_time);
if(copy_to_user(usr_spc_time_val, &power_ic_time, sizeof(power_ic_time)))
{
err = -EFAULT;
}
break;
case POWER_IC_IOCTL_GET_ALARM_TIME:
/* Read the TODA and DAYA registers and set the data in the timeval
structure to the format the Linux uses.*/
err = power_ic_rtc_get_time_alarm(&power_ic_time);
if(copy_to_user(usr_spc_time_val, &power_ic_time, sizeof(power_ic_time)))
{
err = -EFAULT;
}
break;
case POWER_IC_IOCTL_SET_TIME:
/* Write to the TOD and DAY registers based on the data in the timeval struct */
if(copy_from_user(&power_ic_time,usr_spc_time_val, sizeof(power_ic_time)))
{
err = -EFAULT;
}
err = power_ic_rtc_set_time(&power_ic_time);
break;
case POWER_IC_IOCTL_SET_ALARM_TIME:
/* Write to the TODA and DAYA registers based on the data in the timeval struct */
if (copy_from_user(&power_ic_time,usr_spc_time_val,sizeof(power_ic_time)))
{
err = -EFAULT;
}
err = power_ic_rtc_set_time_alarm(&power_ic_time);
break;
default: /* This shouldn't be able to happen, but just in case... */
tracemsg(_k_d("0x%X unsupported ioctl command"), (int) cmd);
err = -ENOTTY;
break;
}
return err;
}
/*
* This function resets the system. It is called by machine_restart().
*
* @param mode indicates different kinds of resets
*/
void arch_reset(char mode)
{
#if defined(CONFIG_MOT_FEAT_SYSREBOOT_ATLAS)
int retval, mema, step = 0;
struct timeval tv;
#elif defined(CONFIG_MOT_FEAT_SYSREBOOT_CRM)
unsigned long amcr;
unsigned long crm_ap_amcr = IO_ADDRESS(CRM_AP_BASE_ADDR + CRM_AP_AMCR);
#endif /* CONFIG_MOT_FEAT_SYSREBOOT_CRM */
if (system_rev == CHIP_REV_2_0) {
/* Workaround reset problem on PASS2 by manually reset WEIM */
__raw_writel(0x00001E00, IO_ADDRESS(WEIM_CTRL_CS0 + CSCRU));
__raw_writel(0x20000D01, IO_ADDRESS(WEIM_CTRL_CS0 + CSCRL));
__raw_writel(0x0, IO_ADDRESS(WEIM_CTRL_CS0 + CSCRA));
}
#if defined(CONFIG_MOT_FEAT_SYSREBOOT_ATLAS)
/*
* Set bit 4 of the Atlas MEMA register. This bit indicates to the
* MBM that the phone is to be reset.
*/
retval = power_ic_backup_memory_read(POWER_IC_BACKUP_MEMORY_ID_ATLAS_BACKUP_SOFT_RESET,
&mema);
if(retval != 0) {
step = 1;
goto die;
}
mema |= 1;
retval = power_ic_backup_memory_write(POWER_IC_BACKUP_MEMORY_ID_ATLAS_BACKUP_SOFT_RESET,
mema);
if(retval != 0) {
step = 2;
goto die;
}
/*
* Set the Atlas RTC alarm to go off in 2 seconds. Experience indicates
* that values less than 2 may not work reliably.
*/
retval = power_ic_rtc_get_time(&tv);
if(retval != 0) {
step = 3;
goto die;
}
tv.tv_sec += 2;
retval = power_ic_rtc_set_time_alarm(&tv);
if(retval != 0) {
step = 4;
goto die;
}
/* power down the system */
__mxc_power_off();
die:
printk("recieved error %d from power_ic driver at step %d in reboot",
retval, step);
/* fall through to existing reset code */
#elif defined(CONFIG_MOT_FEAT_SYSREBOOT_CRM)
/*
* Need to Reboot via Clock Reset Module with Software reset
*/
amcr = readl( crm_ap_amcr );
amcr &= ~CRM_AP_AMCR_SW_AP;
writel( amcr, crm_ap_amcr );
while(1) {
/* stay here, software reset */
arch_idle();
}
#endif /* CONFIG_MOT_FEAT_SYSREBOOT_CRM */
if ((__raw_readw(IO_ADDRESS(WDOG1_BASE_ADDR)) & 0x4) != 0) {
asm("cpsid iaf");
while (1) {
}
} else {
__raw_writew(__raw_readw(IO_ADDRESS(WDOG1_BASE_ADDR)) | 0x4,
IO_ADDRESS(WDOG1_BASE_ADDR));
}
}