Hi Sebastian, I think the honest answer is: Please don't. The U-Boot API is very unmaintained and puts awkward restrictions onto payloads on ARM64 (reserved register for gd).
If you're already on AArch64, just create a UEFI binary (for example via gnuefi[1], or using llvm[2] which can natively emit them) and boot that using bootefi. It should give you at least as much functionality as the U-Boot API, but with the added benefit of being firmware agnostic. Thanks, Alex [1] https://station.eciton.net/fun-and-games-with-gnu-efi.html [2] https://dvdhrm.github.io/2019/01/31/goodbye-gnuefi/ On 15.04.19 11:39, Priebe, Sebastian wrote: > Hello again, > > can nobody help to solve this problem? > Any help would be very appreciated. > Thanks. > > Sebastian > >> -----Ursprüngliche Nachricht----- >> Von: U-Boot <u-boot-boun...@lists.denx.de> Im Auftrag von Priebe, >> Sebastian >> Gesendet: Freitag, 12. April 2019 14:32 >> An: u-boot@lists.denx.de >> Betreff: [U-Boot] U-Boot API example doesn't support 64-bit >> >> Hello, >> >> I'd like to use the U-Boot external API with an ARM64 SoC. >> If I enable CONFIG_API I get the following build error for the API example: >> examples/api/crt0.S: Assembler messages: >> examples/api/crt0.S:33: Error: operand 1 should be an integer register -- >> `ldr >> ip,=search_hint' >> examples/api/crt0.S:34: Error: operand 1 should be an integer register -- >> `str >> sp,[ip]' >> examples/api/crt0.S:40: Error: operand 1 should be an integer register -- >> `ldr >> ip,=syscall_ptr' >> examples/api/crt0.S:41: Error: operand 1 should be an integer register -- >> `ldr >> pc,[ip]' >> scripts/Makefile.build:316: recipe for target 'examples/api/crt0.o' failed >> >> >> For me it seems that the example lacks support for 64-bit. >> >> Can anybody help me to get the example running on 64-bit? >> >> Apparently I have only very litte knowledge of assembler :-( >> >> >> >> Best regards >> >> Sebastian Priebe >> >> SII Technologies GmbH > > > > SII Technologies GmbH > Geschäftsführer: Robert Bauer > Sitz der Gesellschaft: 86167 Augsburg > Registergericht: Amtsgericht Augsburg HRB 31802 > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
