4 CPU fails in buildroot (dts)

soundnut commented 3 years ago

Hi, Managed to build a 2 CPU System fine but any attempt to build with 4 CPUs fails while generating linux.dts

SAXON_CPU_COUNT=4 saxon_buildroot ..... DTC arch/riscv/boot/dts/linux.dtb Error: /development/Ulx3sSmp/buildroot-spinal-saxon/boards/common/dts/linux_cpu.dts:55.25-26 syntax error FATAL ERROR: Unable to parse input tree make[3]: [scripts/Makefile.lib:326: arch/riscv/boot/dts/linux.dtb] Error 1 make[2]: [Makefile:1338: linux.dtb] Error 2 make[1]: [package/pkg-generic.mk:250: /development/Ulx3sSmp/buildroot-build/build/linux-spinal-v5.10.1/.stamp_built] Error 2 make: [Makefile:23: _all] Error 2

Any idea how to fix this? the .dts file doesn't look like it's complete.

Thanks

Attached linux_cpu.dts linux_cpu.dts.gz

Dolu1990 commented 3 years ago

Hooo, the issue is SAXON_CPU_ISAy instead of SAXON_CPU_ISA

I pushed a fix : https://github.com/SpinalHDL/buildroot-spinal-saxon/commit/17a25f2398b494efbc921dee9184afefe2f9c16c#diff-32876606dfd7be262aa095887b04b45e4e4279b7666bde3516dd75998112ad3a

let's me know if there is any issue ^^

Dolu1990 commented 3 years ago

That DTS file is included the main one there : https://github.com/SpinalHDL/buildroot-spinal-saxon/blob/main/boards/spinal-saxon/ulx3s/linux/linux.dts#L24

It is just a fragment of the full config.

soundnut commented 3 years ago

Perfect - thank you! This fixes the issue Build completed without any further issues.

root@buildroot:~# cat /proc/cpuinfo processor : 0 hart : 3 isa : rv32ima mmu : sv32

processor : 1 hart : 0 isa : rv32ima mmu : sv32

processor : 2 hart : 1 isa : rv32ima mmu : sv32

processor : 3 hart : 2 isa : rv32ima mmu : sv32

SpinalHDL / SaxonSoc

4 CPU fails in buildroot (dts) #60