Subject: [Arria 10 SoC] QSPI Flash Macronix Compatibility (MX66U2G45GXRI00)

Hi Altera Community Support Team,

We are currently using the Micron MT25QU02G as the primary QSPI boot device for our Arria 10 SoC (HPS) board. However, due to a severe unit price increase (nearly 20x), we are urgently looking for a cost-effective alternative QSPI Flash memory.

We are currently considering Macronix devices as potential replacements. The Macronix distributor has specifically recommended using the MX66U2G45GXRI00 instead of the MX66U2G45GXRI54.

Could you please provide a technical review on whether the MX66U2G45GXRI00 can be used as a direct replacement? Specifically, I would like to ask the following questions:

Arria 10 SoC Compatibility: Does the Arria 10 SoC HPS BootROM support booting from the Macronix MX66U2G45GXRI00? Since the BootROM operates using standard JEDEC SFDP and basic SPI opcodes, can we expect it to load the preloader/U-Boot SPL without issue?

Programming Tooling: Will quartus_hps or the HPS Flash Programmer support flashing this Macronix part directly, or would we need to handle programming via U-Boot / JTAG scripts?

Any advice, official guidance, or experience regarding Macronix QSPI Flash migration on the Arria 10 SoC would be greatly appreciated.