Arria 10 - FPGA Boot

Hi GregD,

Have you solved your issue and be able to integrate u-boot 2021.04 in a .sof to use the FPGA boot feature?

I am also interested in this feature, but I failed to build a working binary.

I already have a working u-boot with version 2014.10, and I am trying to migrate to version 2021.07.

I tried to transpose https://www.rocketboards.org/foswiki/Documentation/A10GSRD151FPGABoot to u-boot 2021.07 without success :

1. Add the devicetree node:

	config {
		load-environment = <0>;
	};

2. Set the CONFIG_SPL_TEXT_BASE in the defconfig to 0xC0000000 (instead of setting the #define CONFIG_SYS_TEXT_BASE)

3. Edit the file arch/arm/mach-socfpga/board.c (instead of the file board/altera/socfpga_arria10/socfpga_common.c):

int board_init(void)
{
	/* Address of boot parameters for ATAG (if ATAG is used) */
	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;

	/* Disable security / privilege in the A10 NOC to allow masters to write to FPGA OCM */
	writel(0x03fe0101, 0xFFD13500);
	//noc_fw_soc2fpga_soc2fpga_scr:lwsoc2fpga: Allow unsecured accesses from all masters When cleared (0) secure access only
	writel(0x03fe0101, 0xFFD13504);
	//noc_fw_soc2fpga_soc2fpga_scr:soc2fpga: Allow unsecured accesses from all masters When cleared (0) secure access only
	writel(0xffffffff, 0xFFD11004);
	//noc_l4_priv_l4_priv_filter: Allow all peripherals to accept non privileged accesses. (When cleared (0) only privileged access are allowed)

	return 0;
}

4. Convert the generated preloader image u-boot-with-spl.bin to Intel .hex format:

arm-poky-linux-gnueabi-objcopy -I binary -O ihex --adjust-vma -0x00000000 u-boot-with-spl.bin hpsBootTarget.hex

Any suggestions ?

Best regards,