/**
* PmSramFsmHandler() - Sram FSM handler, performs transition actions
* @slave Slave whose state should be changed
* @nextState State the slave should enter
*
* @return Status of performing transition action
*/
static int PmSramFsmHandler(PmSlave* const slave, const PmStateId nextState)
{
int status = XST_PM_INTERNAL;
PmSlaveSram* sram = (PmSlaveSram*)slave->node.derived;
switch (slave->node.currState) {
case PM_SRAM_STATE_ON:
if (PM_SRAM_STATE_RET == nextState) {
/* ON -> RET */
XPfw_RMW32(sram->retCtrlAddr, sram->retCtrlMask,
sram->retCtrlMask);
status = sram->PwrDn();
} else if (PM_SRAM_STATE_OFF == nextState) {
/* ON -> OFF*/
XPfw_RMW32(sram->retCtrlAddr, sram->retCtrlMask,
~sram->retCtrlMask);
status = sram->PwrDn();
} else {
status = XST_NO_FEATURE;
}
break;
case PM_SRAM_STATE_RET:
if (PM_SRAM_STATE_ON == nextState) {
/* RET -> ON */
status = sram->PwrUp();
} else if (PM_SRAM_STATE_OFF == nextState) {
/* RET -> OFF */
XPfw_RMW32(sram->retCtrlAddr, sram->retCtrlMask,
~sram->retCtrlMask);
status = sram->PwrDn();
} else {
status = XST_NO_FEATURE;
}
break;
case PM_SRAM_STATE_OFF:
if (PM_SRAM_STATE_ON == nextState) {
/* OFF -> ON */
status = sram->PwrUp();
} else {
status = XST_NO_FEATURE;
}
break;
default:
status = XST_PM_INTERNAL;
PmDbg("ERROR: Unknown SRAM state #%d\n", slave->node.currState);
break;
}
if (XST_SUCCESS == status) {
PmNodeUpdateCurrState(&slave->node, nextState);
}
return status;
}
/**
* PmEnableAllMasterIpis() - Iterate through all masters and enable their IPI
* interrupt
*/
void PmEnableAllMasterIpis(void)
{
u8 i;
for (i = 0U; i < ARRAY_SIZE(pmAllMasters); i++) {
XPfw_RMW32(IPI_PMU_0_IER,
pmAllMasters[i]->ipiMask,
pmAllMasters[i]->ipiMask);
}
}
