void mhu_secure_message_start(unsigned int slot_id)
{
assert(slot_id <= MHU_MAX_SLOT_ID);
arm_lock_get();
/* Make sure any previous command has finished */
while (mmio_read_32(PLAT_CSS_MHU_BASE + CPU_INTR_S_STAT) &
(1 << slot_id))
;
}
ARM_INSTANTIATE_LOCK
/* Weak definition may be overridden in specific CSS based platform */
#pragma weak plat_arm_pwrc_setup
/*
* Slot 31 is reserved because the MHU hardware uses this register bit to
* indicate a non-secure access attempt. The total number of available slots is
* therefore 31 [30:0].
*/
#define MHU_MAX_SLOT_ID 30
void mhu_secure_message_start(unsigned int slot_id)
{
assert(slot_id <= MHU_MAX_SLOT_ID);
arm_lock_get();
/* Make sure any previous command has finished */
while (mmio_read_32(MHU_BASE + CPU_INTR_S_STAT) & (1 << slot_id))
;
}
