void NvRmPrivIoPowerControlInit(NvRmDeviceHandle hRmDeviceHandle)
{
NvU32 i, v;
NvU32 NoIoPwrMask = 0;
const NvOdmPeripheralConnectivity* pPmuRail = NULL;
if (NvRmPrivGetExecPlatform(hRmDeviceHandle) != ExecPlatform_Soc)
{
// Invalidate IO Power detect map if not SoC platform
for (i = 0; i < NV_ARRAY_SIZE(s_IoPowerDetectMap); i++)
s_IoPowerDetectMap[i].PmuRailAddress = NV_RAIL_ADDR_INVALID;
return;
}
for (i = 0; i < NV_ARRAY_SIZE(s_IoPowerDetectMap); i++)
{
// Fill in PMU rail addresses in IO Power detect map
pPmuRail = NvOdmPeripheralGetGuid(s_IoPowerDetectMap[i].PowerRailId);
NV_ASSERT(pPmuRail && pPmuRail->NumAddress);
s_IoPowerDetectMap[i].PmuRailAddress = pPmuRail->AddressList[0].Address;
// Find all unpowered rails
v = NvRmPrivPmuRailGetVoltage(
hRmDeviceHandle, s_IoPowerDetectMap[i].PowerRailId);
if (v == ODM_VOLTAGE_OFF)
NoIoPwrMask |= s_IoPowerDetectMap[i].DisableRailMask;
}
// Latch already powered IO rails
NvRmPrivIoPowerDetectLatch(hRmDeviceHandle);
// Disable IO pads for unpowered rails
if (NoIoPwrMask)
NvRmPrivIoPowerControl(hRmDeviceHandle, NoIoPwrMask, NV_FALSE);
}
void NvRmPmuSetVoltage(
NvRmDeviceHandle hDevice,
NvU32 vddId,
NvU32 MilliVolts,
NvU32 * pSettleMicroSeconds)
{
NvU32 i;
NvU32 t = NVRM_PWR_DET_DELAY_US;
NV_ASSERT(hDevice);
if (pSettleMicroSeconds)
*pSettleMicroSeconds = 0;
if (!s_PmuSupportedEnv)
return;
// This API is blocked if diagnostic is in progress for any module
if (NvRmPrivIsDiagMode(NvRmModuleID_Invalid))
return;
#if PMU_RAILS_NEVER_OFF
if (MilliVolts == ODM_VOLTAGE_OFF)
return;
#endif
NV_ASSERT(s_Pmu.hMutex);
NvOsMutexLock(s_Pmu.hMutex);
// Set voltage and latch IO level sampling results
for (i = 0; i < VOLTAGE_CONTROL_RETRY_CNT; i++)
{
if (NvOdmPmuSetVoltage(s_Pmu.hOdmPmu, vddId, MilliVolts, pSettleMicroSeconds))
break;
}
NV_ASSERT(i < VOLTAGE_CONTROL_RETRY_CNT);
if (s_Pmu.IoPwrDetectMask || s_Pmu.NoIoPwrMask)
{
NV_ASSERT(MilliVolts != ODM_VOLTAGE_OFF);
if (pSettleMicroSeconds)
{
t += (*pSettleMicroSeconds);
*pSettleMicroSeconds = 0; // Don't wait twice
}
NvOsWaitUS(t);
if (s_Pmu.IoPwrDetectMask) // Latch just powered IO rails
NvRmPrivIoPowerDetectLatch(hDevice);
if (s_Pmu.NoIoPwrMask) // Enable just powered IO rails
NvRmPrivIoPowerControl(hDevice, s_Pmu.NoIoPwrMask, NV_TRUE);
s_Pmu.IoPwrDetectMask = s_Pmu.NoIoPwrMask = 0;
}
NvOsMutexUnlock(s_Pmu.hMutex);
}
