On Fri, 29 Sep 2017 14:35:37 +0200 Oleksij Rempel <linux@xxxxxxxxxxxxxxxx> wrote: > Am 29.09.2017 um 01:12 schrieb Antony Pavlov: > > Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx> > > --- > > Documentation/boards/riscv.rst | 110 +++++++++++++++++++++++++++++++++++++++++ > > 1 file changed, 110 insertions(+) > > > > diff --git a/Documentation/boards/riscv.rst b/Documentation/boards/riscv.rst > > new file mode 100644 > > index 000000000..912f16786 > > --- /dev/null > > +++ b/Documentation/boards/riscv.rst > > @@ -0,0 +1,110 @@ > > +RISC-V > > +====== > > + > > +At the moment only qemu emulator is supported (see https://github.com/riscv/riscv-isa-sim > > +for details). > > + > > +Running RISC-V barebox on qemu > > +------------------------------ > > + > > +Obtain RISC-V GCC/Newlib Toolchain, > > +see https://github.com/riscv/riscv-tools/blob/master/README.md > > +for details. The ``build.sh`` script from ``riscv-tools`` should > > +create toolchain. > > + > > +Next compile qemu emulator:: > > + > > + $ git clone -b 20170824.erizo https://github.com/miet-riscv-workgroup/riscv-qemu > > + $ cd riscv-qemu > > + $ cap="no" ./configure \ > > + --extra-cflags="-Wno-maybe-uninitialized" \ > > + --audio-drv-list="" \ > > + --disable-attr \ > > + --disable-blobs \ > > + --disable-bluez \ > > + --disable-brlapi \ > > + --disable-curl \ > > + --disable-curses \ > > + --disable-docs \ > > + --disable-kvm \ > > + --disable-spice \ > > + --disable-sdl \ > > + --disable-vde \ > > + --disable-vnc-sasl \ > > + --disable-werror \ > > + --enable-trace-backend=simple \ > > + --disable-stack-protector \ > > + --target-list=riscv32-softmmu,riscv64-softmmu > > + $ make > > + > > + > > +Next compile barebox:: > > + > > + $ make erizo_generic_defconfig ARCH=riscv > > + ... > > + $ make ARCH=riscv CROSS_COMPILE=<path to your riscv toolchain>/riscv32-unknown-elf- > > + > > +Run barebox:: > > + > > + $ <path to riscv-qemu source>/riscv32-softmmu/qemu-system-riscv32 \ > > + -nographic -M erizo -bios <path to barebox sources >/barebox.bin \ > > + -serial stdio -monitor none -trace file=/dev/null > > + > > + nmon> q > > + > > + copy loop done > > + restarting... > > + > > + nmon> q > > + Switch to console [cs0] > > + > > + > > + barebox 2017.08.0-00102-g212af75153 #1 Mon Sep 4 20:54:31 MSK 2017 > > + > > + > > + Board: generic Erizo SoC board > > + m25p80 m25p128@00: unrecognized JEDEC id bytes: 00, 0, 0 > > + m25p80 m25p128@00: probe failed: error 2 > > + malloc space: 0x80100000 -> 0x801fffff (size 1 MiB) > > + running /env/bin/init... > > + /env/bin/init not found > > + barebox:/ > > + > > + > > +Running RISC-V barebox on DE0-Nano FPGA board > > +--------------------------------------------- > > + > > +See https://github.com/open-design/riscv-soc-cores/ for instructions > > +on DE0-Nano bitstream generation and loading. > > + > > +Connect to board's UART with your favorite serial communication software > > +(e.g. minicom) and check 'nmon> ' prompt (nmon runs from onchip ROM). > > + > > +Next close your communication software and use ./scripts/nmon-loader > > +to load barebox image into board's DRAM, e.g. > > + > > + # ./scripts/nmon-loader barebox.erizo.nmon /dev/ttyUSB1 115200 > > + > > +Wait several munutes for 'nmon> ' prompt. > > + > > +Next, start barebox from DRAM: > > + > > + nmon> g 80000000 > > + > > +You should see one more 'nmon> ' prompt (this nmon runs from DRAM). > > +Exit nmon with 'q' command: > > + > > + nmon> q > > + Switch to console [cs0] > > + > > + > > + barebox 2017.08.0-00102-g212af75153 #1 Mon Sep 4 20:54:31 MSK 2017 > > + > > + > > + Board: generic Erizo SoC board > > + m25p80 m25p128@00: unrecognized JEDEC id bytes: 00, 0, 0 > > + m25p80 m25p128@00: probe failed: error 2 > > hmmm... not working example? At the moment I run risc-v barebox on several FPGA boards. SPI flash chip is absent on some boards. This log was produced by SPI-flash-chip-less board. Also SPI flash chip emulation is absent for Erizo qemu board. > > + malloc space: 0x80100000 -> 0x801fffff (size 1 MiB) > > + running /env/bin/init... > > + /env/bin/init not found > > + barebox:/ > > some parts are missing in defconfig. Barebox shell can display hostname > and so on ;) > -- > Regards, > Oleksij > -- Best regards, Antony Pavlov _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
