Yes. Stratix® 10 Serial Flash Mailbox Client Intel® FPGA IP Core User Guide version 2019.05.17 and earlier say “The Stratix 10 Serial Flash Mailbox Client Intel FPGA IP core provides access to the low-voltage quad-serial configuration (EPCQ-L) device via Intel Stratix 10 devices.” But the IP core also provides access to the configuration devices supported by Intel Stratix 10 devices.
Refer the following link for details about the supported configuration devices in Intel Stratix 10 devices.
Device Configuration - Support Center
- Intel Supported Configuration Devices
- Intel Configuration Devices
- Intel Supported Third Party Configuration Devices
Note that although there are 4 chip select pins (nCSO[3:0]) available in Intel Stratix 10 devices, the IP core allows to access the configuration device from FPGA core via only nCSO pin. The others nCSO[3:1] support for HPS access.