Re: [PATCH 2/2] media: coda: Add i.MX51 (CodaHx4) support

[Philipp Zabel <p.zabel@pengutronix.de>]

Hi Hans,

On Fri, 2017-12-15 at 15:22 +0100, Hans Verkuil wrote:
> Hi Philipp,
> 
> On 13/12/17 15:09, Philipp Zabel wrote:
> > Add support for the CodaHx4 VPU used on i.MX51.
> > 
> > Decoding h.264, MPEG-4, and MPEG-2 video works, as well as encoding
> > h.264. MPEG-4 encoding is not enabled, it currently produces visual
> > artifacts.
> > 
> > Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
> > ---
> >  drivers/media/platform/coda/coda-bit.c    | 45 ++++++++++++++++++++++---------
> >  drivers/media/platform/coda/coda-common.c | 44 +++++++++++++++++++++++++++---
> >  drivers/media/platform/coda/coda.h        |  1 +
> >  3 files changed, 74 insertions(+), 16 deletions(-)
> > 
> 
> <snip>
> 
> > +	[CODA_IMX51] = {
> > +		.firmware     = {
> > +			"vpu_fw_imx51.bin",
> > +			"vpu/vpu_fw_imx51.bin",
> > +			"v4l-codahx4-imx51.bin"
> > +		},
> > +		.product      = CODA_HX4,
> > +		.codecs       = codahx4_codecs,
> > +		.num_codecs   = ARRAY_SIZE(codahx4_codecs),
> > +		.vdevs        = codahx4_video_devices,
> > +		.num_vdevs    = ARRAY_SIZE(codahx4_video_devices),
> > +		.workbuf_size = 128 * 1024,
> > +		.tempbuf_size = 304 * 1024,
> > +		.iram_size    = 0x14000,
> > +	},
> 
> What's the status of the firmware? Is it going to be available in some firmware
> repository? I remember when testing other imx devices that it was a bit tricky
> to get hold of the firmware. And googling v4l-codahx4-imx51.bin doesn't find
> anything other than this patch.

As far as I am aware, so far all efforts to get these firmware binaries
relicensed in a way that makes them redistributable in linux-firmware
have not succeeded.

They are distributed by NXP directly in the firmware-imx package.
The http://git.yoctoproject.org/cgit/cgit.cgi/meta-fsl-arm/ repository
contains links to the latest version:

  wget http://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-5.4.bin
  dd if=firmware-imx-5.4.bin bs=34087 skip=1 | tar xj
  cat firmware-imx-5.4/COPYING

regards
Philipp