[PATCH] ARM: shmobile: r8a7790 - fix shdi resource sies

[Simon Horman]

On Fri, Dec 13, 2013 at 11:04:15AM +0000, Ben Dooks wrote:
> On 13/12/13 10:56, Magnus Damm wrote:
> >Hey Morimoto-san,
> >
> >On Fri, Dec 13, 2013 at 11:37 AM, Kuninori Morimoto
> ><kuninori.morimoto.gx at gmail.com> wrote:
> >>
> >>Hi Ben
> >>
> >>Thank you for your patch
> >>
> >>>The r8a7790.dtsi file has three sdhi nodes which all have the wrong resource
> >>>size for their register block. This causes the sh_modbile_sdhi driver to
> >>>fail to communicate with card at-all.
> >>>
> >>>Change each sdhi node size from 0x100 to 0x200 to correct this.
> >>>
> >>>Cc: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
> >>>Cc: Guennadi Liakhovetski <g.liakhovetski+renesas at gmail.com>
> >>>Cc: Magnus Damm <magnus.damm at gmail.com>
> >>>Cc: Simon Horman <horms at verge.net.au>
> >>>Cc: Linux SH <linux-sh at vger.kernel.org>
> >>>Cc: Linux ARM <linux-arm-kernel at lists.infradead.org>
> >>>Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
> >>>Tested-by: William Towle <william.towle at codethink.co.uk>
> >>>---
> >>
> >>Unfortunately, sdhi resource size 0x100 is corrent on Renesas SDHI.
> >>The wrong is SDHI/TMIO driver side, not SoC side.
> >>Now, I'm working/sending sh_modbile_sdhi driver fixup patches for R-Car H2,
> >>but it need more time (= there is merge timing issue)
> >
> >Thanks for supporting Ben regarding this SDHI issue.
> >
> >Would it be possible for you to share a list of patches needed to get
> >SDHI working? If some parts are missing then please post them so the
> >patches are available on public lists.
> >
> >I would like to make it possible for Ben to test your patch stack if
> >he happens to have time.
> 
> Thanks, I think I have all the previous ones that where pushed to the
> linux-sh list. If there's a git tree I could pull from that would make
> our job easier.

A good idea, sorry for not already having that in place.

Morimoto-san, could you help me to create a topic branch for R-Car Gen2
SDHI by sending me a list of patches and/or brances in other people's
trees?

> We have got SDHI0 and SDHI2 working with device tree, but we're
> currently seeing less than a megabyte a second when direcly dd-ing
> blocks from the card. Is this a noted issue? We got ~11MiB without
> DMA on the 3.4-ltsi series.
> 
> As a note, I will be away from the 20th December untill Janurary 6th
> and it is likely the rest of the team here will be away from 21st.

I think it is likely that most of Japan will be on vacation from
the 28th to the 6th. I intend to be but I don't speak for others.