On Wed, Dec 29, 2021 at 5:30 PM Khem Raj <[email protected]> wrote: > > > > On Wed, Dec 29, 2021 at 2:20 PM Davis Roman <[email protected]> wrote: >> >> On Wed, Dec 29, 2021 at 2:21 PM Anders Montonen <[email protected]> >> wrote: >> > >> > Hi, >> > >> > > On 29 Dec 2021, at 9:53, davis roman <[email protected]> wrote: >> > > >> > > I generated an internal mips toolchain built against musl and I tried >> > > to compile u-boot but unfortunately, I'm getting "opcode not >> > > supported" error messages. https://pastebin.com/QdcLxy69 >> > > If instead I use the realtek provided prebuilt toolchain then u-boot >> > > compiles successfully. https://pastebin.com/zcQ5kc20 >> > > >> > > I'm thinking that Realtek's toolchain has patches specific to their >> > > SoC that have not been pushed upstream. Could this be the reason I'm >> > > unable to compile uboot? >> > >> > I’m guessing that your U-Boot config doesn’t set the correct MIPS >> > architecture revision. The compiler error shows that you’re trying to >> > assemble a MIPS32r1 instruction, but the compiler is targeting the >> > original MIPS1 architecture. The Realtek toolchain may have set the >> > default architecture to match the SoC, but the fix is to update the config >> > to match the hardware. >> >> You're right. I didn't realize the RX5281 core on the RTS3916N only >> supports mips1 or mips16 (https://pasteboard.co/IpsqN6GkBYAs.png). >> >> I happened to have a mips sourcery toolchain installed on my machine >> (https://sourcery.sw.siemens.com/GNUToolchain/package12797/public/mips-linux-gnu/mips-2014.05-27-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2) >> so I pointed that to u-boot without modifying anything else and it was >> able to compile u-boot successfully. Woot! >> https://pastebin.com/ySPFae5u >> >> I suppose the next step would be to generate a mips1 yocto toolchain >> however according to the available tune values it appears only mips32 >> or mips64 is available >> >> Any suggestions on how to generate a mips1 yocto toolchain or if >> that's even supported? > > > Yes it’s supported although it’s not default for qemumips so the simple trick > you can do is change the DEFAULTTUNE setting in the qemumips.conf away from > mips32r2
Sorry Khem, I'm not quite following you. I tried the following patch (https://pastebin.com/rkmQ3t6P) thinking perhaps this is what you meant however my build configuration still shows the tune set to mips32r2 https://pastebin.com/izP9thVW What am I missing? >> >> >> >> > >> > Regards, >> > Anders Montonen
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