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beyondTime's avatar
beyondTime
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5 years ago

'Nios2' 'Nios II' isa compatible to newer buildroot toolchain

Hello @all,

is NiosII cpu isa (instruction set architecture, summary?) compatible within all NiosII implementations over years NiosII has been available (>2004?), yet?

Is buildroot toolchain's compiler (nios2-linux-gcc or nios2-buildroot-linux-gcc) suitable for compiling kernel and how to download a u-boot (or other bootloader) to a preset (.sof, .sopc) fpga environment through Usb blaster programmer/jtag-debugger.

Thanks @all for Your time and efforts.

Sincerely, beyondTime

( nios2eds 13.0sp1, Xenial 16.04 )

background information beside technical context https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/pr/nios2_backgrounder.pdf

2 Replies

    • beyondTime's avatar
      beyondTime
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      5 years ago

      Thank you for replying.

      Maybe it is easier directly loading a Linux Kernel to start entry point instead of adjusting u-boot to preconfigured Nios II setup.

      Just learned that this start entry point can vary for every new hardware configuration, if enabled hardware changes memory, interrupt and peripherals maps.

      Best regards,

      beyondTime

      ( nios2eds 13.0sp1, Xenial 16.04 )