On Fri, Apr 25, 2025 at 12:43:08PM -0500, Nathaniel Hourt wrote: > Hi, all > > I am trying to build u-boot and SPL for my Mars board (riscv, variant of the > starfive visionfive2) following the board-specific docs [1], using > LLVM/clang as my toolchain with the HOSTCC and CC make options mentioned in > [2]. I'm building from a RISC-V native chroot using qemu-binfmt so I am not > using the cross-compile options; thus my make invocation looks like `make > HOSTCC=clang CC=clang` (for OpenSBI, I just pass 'LLVM=1'). Note that the > chroot I'm building from does not contain gcc/binutils at all; LLVM is the > only toolchain present. > > The build usually succeeds, so I try to pass the SPL to the MaskROM over > UART (using the u-boot-spl.bin.normal.out image) and it just hangs. No > output, no response, and I have to reset the board. If I pass a working SPL
Have you tried to apply this patch[1]? U-Boot support for JH7110 is broken at least in v2025.04 release afaik. Best regards, Yao Zi [1]: https://lore.kernel.org/all/20250330162421.238483-1-heinrich.schucha...@canonical.com/ > I downloaded, it logs some output then accepts a main u-boot payload over > UART, so if I send the main u-boot payload I built (u-boot.itb), I get a > "Load address misaligned" error as in [3]. > > I attempted to configure my SPL to log to UART by turning on various logging > options in `menuconfig`, including the options recently mentioned by > Heinrich Schuchardt in [4], but I have been unsuccessful in getting any > output from the SPL I built. > > So I am looking for guidance. Is building with LLVM/clang (for riscv) > supported? I don't know what to try next. > > Thanks > — > Nathaniel > > > [1] > https://docs.u-boot.org/en/latest/board/starfive/milk-v_mars.html#milk-v-mars > [2] https://docs.u-boot.org/en/latest/build/clang.html > [3] https://pastebin.com/xwEcqEpz > [4] https://lists.denx.de/pipermail/u-boot/2025-April/586264.html
