Re: [Qemu-devel] [RFC v5 0/5] hw/arm: add initial support for Canon DIGIC SoC: ping-ping

[Antony Pavlov <antonynpavlov@gmail.com>]

On Fri, 13 Sep 2013 18:37:27 +0400
Antony Pavlov <antonynpavlov@gmail.com> wrote:

ping-ping

> On Sat,  7 Sep 2013 11:04:22 +0400
> Antony Pavlov <antonynpavlov@gmail.com> wrote:
> 
> ping
> > [RFC v5 1/5] hw/arm: add very initial support for Canon DIGIC SoC
> > [RFC v5 2/5] hw/arm/digic: prepare DIGIC-based boards support
> > [RFC v5 3/5] hw/arm/digic: add timer support
> > [RFC v5 4/5] hw/arm/digic: add UART support
> > [RFC v5 5/5] hw/arm/digic: add NOR ROM support
> > 
> > Changes since v4:
> >  1. digic.h: parent_obj: change type Object -> DeviceState
> >  2. digic-uart: drop reg array
> >  3. digic_boards: fix K8P3215UQB comment
> >  4. Makefile: place digic stuff in own line
> >  5. drop cpu-qom.h inclusion
> >  6. digic.h: add private/public labels
> >  7. digic.h: fix guard macro
> >  8. move base address macros to digic.c
> >  9. fix header comments
> > 
> > Changes since v3:
> >  1. fix typos and formatting
> >  2. digic-timer: drop DPRINTF
> >  3. digic-timer: fix DIGIC4_TIMER_BASE() macro
> >  4. digic.c: fix max timer device string
> > 
> > Changes since v2:
> >  1. rebase over latest master;
> >    * pass available size to object_initialize().
> >  2. digic-uart: qemu_log: use LOG_UNIMP instead LOG_GUEST_ERROR;
> >  3. digic-boards: update rom image load code: introduce digic_load_rom().
> > 
> > Changes since v1:
> >  0. drop the "add ARM946E-S CPU" patch;
> >  1. convert to QOM, split DIGIC SoC code and board code
> >     (thanks to Andreas Fa:rber, Peter Maydell and Peter Crosthwaite);
> >  2. fix digic-uart (many thanks to Peter Crosthwaite
> >     for his comments);
> >  3. digic-boards: digic4_add_k8p3215uqb_rom(): update
> >     rom image load code: use the '-bios' option.
> > 
> > DIGIC is Canon Inc.'s name for a family of SoC
> > for digital cameras and camcorders.
> > 
> > See http://en.wikipedia.org/wiki/DIGIC for details.
> > 
> > There is no publicly available specification for
> > DIGIC chips. All information about DIGIC chip
> > internals is based on reverse engineering efforts
> > made by CHDK (http://chdk.wikia.com) and
> > Magic Lantern (http://www.magiclantern.fm) projects
> > contributors.
> > 
> > Also this patch series adds initial support for Canon
> > PowerShot A1100 IS compact camera (it is my only camera
> > with connected UART interface). As the DIGIC-based cameras
> > differences mostly are unsignificant (e.g. RAM-size,
> > ROM type and size, GPIO usage) the other compact
> > and DSLR cameras support can be easely added.
> > 
> > This DIGIC support patch series is inspired
> > by EOS QEMU from Magic Lantern project.
> > The main differences:
> >  * EOS QEMU uses home-brew all-in-one monolith design;
> >  this patch series uses conventional qemu object-centric design;
> >  * EOS QEMU tries provide simplest emulation for most
> >  controllers inside SoC to run Magic Lantern firmware;
> >  this patch series provide more complete support
> >  only for core devices to run barebox bootloader.
> >   ** EOS QEMU does not support timer counting
> >   (this patch series emulate 1 MHz counting);
> >   ** EOS QEMU support DIGIC UART only for output
> >   character to stderr; (this patch series emulate
> >   introduces full blown UART interface);
> >   ** EOS QEMU has incomplete ROM support;
> >   (this patch series uses conventional qemu pflash).
> > 
> > This initial DIGIC support can't be used to run
> > the original camera firmware, but it can successfully
> > run experimental version of barebox bootloader
> > (see http://www.barebox.org).
> > 
> > The last sources of barebox for PowerShot A1100 can be
> > obtained here:
> >   https://github.com/frantony/barebox/tree/next.digic.20130829
> > 
> > The precompiled ROM image usable with qemu can be
> > obtained here:
> >   https://github.com/frantony/barebox/blob/next.digic.20130829/canon-a1100-rom1.bin
> > 
> > This ROM image (after "dancing bit" encoding) can be run on
> > real Canon A1100 camera.
> > 
> > The short build instruction for __previous__ DIGIC barebox
> > version (it can be used with more recent sources too) can
> > be obtained here:
> >   http://lists.infradead.org/pipermail/barebox/2013-August/016007.html
> 
> 
> -- 
> Best regards,
>   Antony Pavlov

-- 
Best regards,
  Antony Pavlov