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There is an official partner program between MICRON and ALTERA :
https://www.micron.com/solutions/micron-valued-partner-program/chipset-partner/altera And if you look at the section "Download Micron Flash and DRAM support for Altera Platforms", the SPI NOR Flash N25Q is validated for Cyclone V. But I don' know what means "validated" : boot from MICRON FLASH or program FLASH also through Quartus tool....
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Yes, we fell for that marketing spin, and designed-in two Micron (BGA) flash chips (for FPGA and HSP boot), only to be told that Altera won't support programming them, won't help us debug the problem, won't confirm or deny whether there is a technical reason why the N25Q512 will or won't work with the Cyclone V. Then they just told us to go away and re-layout the board for EPCQ512 (SOIC) chips.
Even if the EPCQ512 were available from any distributor the UK, they would still add £200 to the BOM and thereby make the product unsaleable.
I no longer trust Altera.
My direct experience is that unless your product is going to sell >100K units, you get no support and you are on your own.
Honored Contributor
