Hi Lists,
On Thu, 3 Nov 2022 at 05:11, Lists Nick Betteridge lists.nick.betteridge@gmail.com wrote:
I'm developing on an ubuntu x86 machine, trying to run the u-boot hello_world standalone application which resides on an image |sd.img| which contains a partition
I've compiled u-boot (|v2022.10|) with |qemu-x86_64_defconfig|
I run qemu with "|qemu-system-x86_64 -m 1024 -nographic -bios u-boot.rom -drive format=raw,file=sd.img"|
u-boot starts up, doesn't find a script, doesn't detect tftp, and awaits a command. If I type |"ext4ls ide 0:1|", I can clearly see hello_world.bin (|3932704 hello_world.bin|).
When I do a |ext4load ide 0:1 0x40000 hello_world.bin| (in preparation for |go 40000 This is another test|), qemu/u-boot restarts.
0x40000 is the |CONFIG_STANDALONE_LOAD_ADDR| for x86.
I have also tried making an image of hello_world |"mkimage -n "Hello stand alone" -A x86_64 -O u-boot -T standalone -C none -a 0x40000 -d hello_world.bin -v hello_world.img|" and tried to load the image into 0x40000 with the intention of using |bootm| in case of cache issues - qemu/u-boot still resets.
Could anyone possibly point out the basic mistake I'm making?
Is the app linked to start at that address. Could you try 'dcache off' before the 'go'? Do you have a debugger?
Regards, Simon