stratix 10 PMBUS's issue

Hi,

the full device name tells if you are using a V (SmartVID) or L or X (fixed voltage) type, most likely the former.

Power management guide tells:

Intel Stratix 10 standard power devices (–1V, –2V, –3V power grade) are SmartVID devices. The core voltage supplies (VCC and VCCP) for each SmartVID device must be driven by a PMBus-compliant voltage regulator dedicated to the Intel Stratix 10 –V device that is connected to that Intel Stratix 10 device via PMBus. For Intel Stratix 10 standard power devices, use of a PMBus-compliant voltage regulator for each device is mandatory. Intel Stratix 10 devices will not configure or function correctly if the core voltage is driven by a non-PMBus compliant regulator with a fixed output voltage.

Frank