Re: [PATCH] Terasic DE0 NANO-SoC: add support

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On Mon, 01 Feb 2016 13:06:22 +0100
Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx> wrote:

> 
> Tim Sander writes:
> 
> > Below is a Patch for supporting the Terasic DE0 NANO-SoC with barebox.
> > The pretty similar Socrates Board was taken as a starting point with pulling
> > in the memory timings/pinmux from 
> > http://rocketboards.org/foswiki/view/Documentation/AtlasSoCCompileHardwareDesign
> > Its only tested at room temperatures and i am not 100% sure about the device tree:
> >  One known problem is the fact that the board identifier is pretty generic but its the 
> >  same in the linux kernel so i resorted to that.
> >
> > Signed-off-by: Tim Sander <tim@xxxxxxxxxxxxxxx>
> > ---
> >  arch/arm/boards/Makefile                           |   1 +
> >  arch/arm/boards/terasic-de0-nano-soc/Makefile      |   2 +
> >  arch/arm/boards/terasic-de0-nano-soc/board.c       |  37 ++
> >  arch/arm/boards/terasic-de0-nano-soc/config.h      |   1 +
> >  .../terasic-de0-nano-soc/iocsr_config_cyclone5.c   | 675 +++++++++++++++++++++
> >  arch/arm/boards/terasic-de0-nano-soc/lowlevel.c    | 102 ++++
> >  .../boards/terasic-de0-nano-soc/pinmux_config.c    | 240 ++++++++
> >  arch/arm/boards/terasic-de0-nano-soc/pll_config.h  | 107 ++++
> >  .../arm/boards/terasic-de0-nano-soc/sdram_config.h | 108 ++++
> >  .../boards/terasic-de0-nano-soc/sequencer_auto.h   | 228 +++++++
> >  .../terasic-de0-nano-soc/sequencer_auto_ac_init.c  |  69 +++
> >  .../sequencer_auto_inst_init.c                     | 161 +++++
> >  .../terasic-de0-nano-soc/sequencer_defines.h       | 160 +++++
> >  arch/arm/configs/socfpga-xload_defconfig           |   1 +
> >  arch/arm/configs/socfpga_defconfig                 |   1 +
> >  arch/arm/dts/Makefile                              |   1 +
> >  arch/arm/dts/socfpga_cyclone5_de0_nano_soc.dts     | 136 +++++
> >  arch/arm/mach-socfpga/Kconfig                      |   4 +
> >  images/Makefile.socfpga                            |   8 +
> >  19 files changed, 2042 insertions(+)
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/Makefile
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/board.c
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/config.h
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/iocsr_config_cyclone5.c
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/lowlevel.c
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/pinmux_config.c
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/pll_config.h
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/sdram_config.h
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/sequencer_auto.h
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/sequencer_auto_ac_init.c
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/sequencer_auto_inst_init.c
> >  create mode 100644 arch/arm/boards/terasic-de0-nano-soc/sequencer_defines.h
> >  create mode 100644 arch/arm/dts/socfpga_cyclone5_de0_nano_soc.dts
> >
> 
> (...)
> 
> > diff --git a/arch/arm/dts/socfpga_cyclone5_de0_nano_soc.dts b/arch/arm/dts/socfpga_cyclone5_de0_nano_soc.dts
> > new file mode 100644
> > index 000000000000..5d1840451382
> > --- /dev/null
> > +++ b/arch/arm/dts/socfpga_cyclone5_de0_nano_soc.dts
> > @@ -0,0 +1,136 @@
> > +/*
> > + *  Copyright (C) 2013 Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + * GNU General Public License for more details.
> > + *
> > + * You should have received a copy of the GNU General Public License
> > + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
> > + */
> > +
> > +#include <arm/socfpga_cyclone5_sockit.dts>
> 
> This is the wrong DT.
> What you AFAIK want is the socfgpa_cyclone5_de0_sockit.dts
> 
> The "Terasic DE0-Nano" is the same as the "Terasic DE-0" or isn't it?
> From the website it at least seems like it.
> 
> With the other dts you then should be able to remove 
> 
> > +#include "socfpga.dtsi"
> > +
> > +/ {
> > +       model = "Terasic DE0-Nano(Atlas)";

It looks like Steffen is right.

The board model name is wrong.

Here is the DE0-Nano-SoC (Atlas-SoC) board:
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&No=941
it is based on Cyclone V SE 5CSEMA4U23C6N.


And this is DE0-Nano
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&CategoryNo=139&No=593
it is based on Cyclone IV EP4CE22F17C6N.

-- 
Best regards,
  Antony Pavlov

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