From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-lf0-x236.google.com ([2a00:1450:4010:c07::236]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dyGnJ-0003zJ-IB for barebox@lists.infradead.org; Sat, 30 Sep 2017 12:23:00 +0000 Received: by mail-lf0-x236.google.com with SMTP id a18so1889240lfl.13 for ; Sat, 30 Sep 2017 05:22:35 -0700 (PDT) Date: Sat, 30 Sep 2017 15:34:30 +0300 From: Antony Pavlov Message-Id: <20170930153430.531d45897831b9f1e08bc4c7@gmail.com> In-Reply-To: <9b1d2334-72a1-7aee-a1d5-3df034c29fef@rempel-privat.de> References: <20170928231249.4158-1-antonynpavlov@gmail.com> <20170928231249.4158-11-antonynpavlov@gmail.com> <9b1d2334-72a1-7aee-a1d5-3df034c29fef@rempel-privat.de> Mime-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [RFC v4 10/10] Documentation: add RISC-V docs To: Oleksij Rempel Cc: barebox@lists.infradead.org On Fri, 29 Sep 2017 14:35:37 +0200 Oleksij Rempel wrote: > Am 29.09.2017 um 01:12 schrieb Antony Pavlov: > > Signed-off-by: Antony Pavlov > > --- > > Documentation/boards/riscv.rst | 110 +++++++++++++++++++++++++++++++++= ++++++++ > > 1 file changed, 110 insertions(+) > > = > > diff --git a/Documentation/boards/riscv.rst b/Documentation/boards/risc= v.rst > > new file mode 100644 > > index 000000000..912f16786 > > --- /dev/null > > +++ b/Documentation/boards/riscv.rst > > @@ -0,0 +1,110 @@ > > +RISC-V > > +=3D=3D=3D=3D=3D=3D > > + > > +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-workgrou= p/riscv-qemu > > + $ cd riscv-qemu > > + $ cap=3D"no" ./configure \ > > + --extra-cflags=3D"-Wno-maybe-uninitialized" \ > > + --audio-drv-list=3D"" \ > > + --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=3Dsimple \ > > + --disable-stack-protector \ > > + --target-list=3Driscv32-softmmu,riscv64-softmmu > > + $ make > > + > > + > > +Next compile barebox:: > > + > > + $ make erizo_generic_defconfig ARCH=3Driscv > > + ... > > + $ make ARCH=3Driscv CROSS_COMPILE=3D/r= iscv32-unknown-elf- > > + > > +Run barebox:: > > + > > + $ /riscv32-softmmu/qemu-system-riscv32 \ > > + -nographic -M erizo -bios /barebox.bin= \ > > + -serial stdio -monitor none -trace file=3D/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 softwa= re > > +(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, =A0 Antony Pavlov _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox