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Hello Austin,
I've been reading the boot types and I still didn't find a solution for bare-metal application. My goal is to load up a design into FPGA (with the .rbf file) and then load my binary bare-metal application for ARM-A9. Today what I could do is to generate the preloader (preloader-mkpimage.bin) and my FPGA raw files to program (.rbf) but I couldn't find some tutorial of how to generate the u-boot.scr and u-boot.script to program FPGA and load the binary. =/
Btw, if I understood right to loadup the design and boot some bare-metal app you need and SD/MMC with:
Partitions:
fat32:
------ u-boot.img
------ u-boot.scr
------ baremetalapp.bin
------ soc_design.rbf
a2:
------ preloader-mkpimage.bin
Am I right about this?
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I already can generate the binary bare metal with the mkimge header with the command:
$(MKIMAGE) -A arm -T standalone -C none -a 0x100040 -e 0 -n "baremetal image" -d $(BIN) $(IMG)
but when I try to run the u-boot.scr the output fails to run, my script is:
u-boot.script:
fatload mmc 0:1 $fpgadata soc_system.rbf;
fpga load 0 $fpgadata $filesize;
run bridge_enable_handoff;
fatload mmc 0:1 0x00100040 hello-mkimage.bin;
go 0x00100040;
$(MKIMAGE) -A arm -T standalone -C none -a 0x100040 -e 0 -n "uboot script" -d u-boot.script u-boot.scr
And the output is:
U-Boot 2013.01.01 (Feb 14 2018 - 16:14:30)
CPU : Altera SOCFPGA Platform
BOARD : Altera SOCFPGA Cyclone V Board
I2C: ready
DRAM: 1 GiB
MMC: ALTERA DWMMC: 0
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Skipped ethaddr assignment due to invalid EMAC address in EEPROM
Net: mii0
Warning: failed to set MAC address
Hit any key to stop autoboot: 0
reading u-boot.scr
228 bytes read in 5 ms (43.9 KiB/s)
# # Executing script at 02000000
Bad image type
reading zImage
** Unable to read file zImage **
reading socfpga.dtb
** Unable to read file socfpga.dtb **
Bad Linux ARM zImage magic!
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