How to enable the FMC power in U-boot?

As per the VITA specification, the FMC connector power is disabled by default. During boot, the required FMC power rails are enabled based on the EEPROM contents programmed on the FMC card. However, if the FMC card EEPROM is not programmed, the FMC power can be enabled manually using the following U-Boot commands.

Please use the commands below to enable the FMC power in U-Boot.

$ setenv fmc_power ‘gpio set gpio@23_3;gpio set gpio@23_4;gpio set gpio@23_5;gpio set gpio@23_12’
$ saveenv
$ run fmc_power

After saving the environment, the following command must be executed on every boot to enable power to the FMC card:

$ run fmc_power

To enable the FMC power automatically without using these commands, the EEPROM on the FMC module must be programmed with the appropriate configuration data.

For further product inquiries, please get in touch with our sales team at mktg@iwave-global.com

Please find the detailed product information here:
Kintex™ UltraScale+™ System on Module