linux-kernel - Re: [PATCH 0/3] mtd: nand: add Broadcom NAND controller support

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Date:	Mon, 16 Mar 2015 16:44:42 -0700
From:	Brian Norris <computersforpeace@...il.com>
To:	Anatol Pomazau <anatol@...gle.com>
Cc:	linux-mtd@...ts.infradead.org, Dmitry Torokhov <dtor@...gle.com>,
	Ray Jui <rjui@...adcom.com>,
	Corneliu Doban <cdoban@...adcom.com>,
	Jonathan Richardson <jonathar@...adcom.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Rafał Miłecki <zajec5@...il.com>,
	bcm-kernel-feedback-list@...adcom.com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, Kevin Cernekee <cernekee@...il.com>
Subject: Re: [PATCH 0/3] mtd: nand: add Broadcom NAND controller support

(Your HTML mail will likely get blocked by a lot of filters)

Hi Anatol,

On Mon, Mar 16, 2015 at 04:24:20PM -0700, Anatol Pomazau wrote:
> Hi Brian
> 
> Thanks for the patch series. I am going to test it on a Broadcom dev board.
> 
> Do you plan to add a patch for bcm-cygnus.dtsi similar to what is done
> hereÂ https://github.com/Broadcom/cygnus-linux/commit/
> 1de02697829c3a2ce48a1bc29a8535e4961999ca
> 
> ?

Not yet. As I note below, this does not work as-is on Cygnus. I wanted
to get the initial code out there, as this already supports some chips.
There as still some additions necessary to get iProc/Cygnus and BCM53xxx
chips working (WIP).

The code you link to is a hacked version from Ray. His changes have not
been integrated yet.

> On Fri, Mar 6, 2015 at 5:18 PM, Brian Norris <computersforpeace@...il.com>
> wrote:
>      Hi,
> 
>      This adds (long in coming) support for the Broadcom BCM7xxx Set-Top
>      Box NAND
>      controller. This controller has been used in a variety of Broadcom
>      SoCs.
> 
>      There are a few more features I'd like add in the near future, mostly
>      to
>      support more SoCs, but this is the base set, which should only need
>      relatively
>      minor additions to support chips like BCM63138, BCM3384, and Cygnus/
>      iProc.
>      Particularly, we may need to straighten out some endianness issues
>      for the data
>      path on iProc, and interrupt enabling/acking on iProc, BCM63xxx,
>      BCM3xxx, and
>      others.

^^^ Note the previous 2 sentences.


>      TODO: add this to the DTS(I) files for BCM7445.
> 
>      Happy reviewing! (Speaking of which, I need to catch up on reviewing
>      everybody
>      else's MTD submissions...)
> 
>      Brian

Brian
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