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Date: Fri, 5 Feb 2016 12:05:05 -0600
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Subject: Re: [PATCH] mtd/ifc: Add support for IFC controller version 2.0
From: Li Yang <leoli@freescale.com>
To: Scott Wood <oss@buserror.net>
Cc: Raghav Dogra <raghav@freescale.com>,
 Brian Norris <computersforpeace@gmail.com>,
 linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, prabhakar.kushwaha@nxp.com,
 linux-mtd@lists.infradead.org, Jaiprakash Singh <b44839@freescale.com>
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On Thu, Feb 4, 2016 at 7:17 PM, Scott Wood <oss@buserror.net> wrote:
> On Thu, 2016-02-04 at 17:07 -0600, Li Yang wrote:
>> On Wed, Feb 3, 2016 at 12:36 AM, Raghav Dogra <raghav@freescale.com> wrote:
>> > The new IFC controller version 2.0 has a different memory map page.
>> > Upto IFC 1.4 PAGE size is 4 KB and from IFC2.0 PAGE size is 64KB.
>> > This patch segregates the IFC global and runtime registers to appropriate
>> > PAGE sizes.
>>
>> If the global registers and the runtime registers are so independent
>> that they have to be on different page boundaries, it would make more
>> sense for them to be defined as separate reg regions in the device
>> tree at the very beginning.  Then we would only need to change the
>> device tree now and it would be future proof for any page size.
>
> That's great if you have a time machine.  Otherwise, NACK.

I didn't suggest that we need to change it now.  But we might need to
be more careful in the future when creating bindings for new hardware.

Regards,
Leo