APF6 SP FPGA configuration

Configuring from Linux

1. Load periph.rbf to the FPGA from U-Boot
2. Use the FPGA loader linux driver to load core.rbf

Note: On APF6_SP, the command load_fpga work only throught PCIe, see PCIe fpga load to know how it works

Configuring from U-Boot

APF6_SP

• To «autoload» your firmware while U-Boot is starting, simply add your bitstream to your rootfs, for example :

/lib/firmware/fpga/firmware.periph.rbf

Note: By default, directory /lib/firmware/fpga doesn't exists, then simply create it with # mkdir /lib/firmware/fpga

• Then reboot under U-Boot and configure your environment variables firmware_autoload and firmware_path :

BIOS> setenv firmware_path /lib/firmware/fpga/firmware.periph.rbf
BIOS> setenv firmware_autoload 1

• Do not forget to save your environment variables:

BIOS> saveenv

• That's all, now your bitstream will be loaded with U-Boot at boot:

U-Boot SPL 2014.07 (Apr 23 2015 - 16:16:45)

U-Boot 2014.07 (Apr 23 2015 - 16:16:45)

[...]

39688 bytes read in 260 ms (148.4 KiB/s)
Hit any key to stop autoboot:  0