void __dead2 sq_system_off(void)
{
volatile uint32_t *gpio = (uint32_t *)PLAT_SQ_GPIO_BASE;
/* set PD[9] high to power off the system */
gpio[5] |= 0x2; /* set output */
gpio[1] |= 0x2; /* set high */
dmbst();
generic_delay_timer_init();
mdelay(1);
while (1) {
gpio[1] &= ~0x2; /* set low */
dmbst();
mdelay(1);
gpio[1] |= 0x2; /* set high */
dmbst();
mdelay(100);
}
wfi();
ERROR("SQ System Off: operation not handled.\n");
panic();
}
static void scp_boot_message_send(size_t payload_size)
{
/* Ensure that any write to the BOM payload area is seen by SCP before
* we write to the MHU register. If these 2 writes were reordered by
* the CPU then SCP would read stale payload data */
dmbst();
/* Send command to SCP */
mhu_secure_message_send(BOM_MHU_SLOT_ID);
}
