linux-kernel - Re: [PATCH v4 0/7] Add TI EMIF SDRAM controller driver

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Message-ID: <4F872BED.7000703@ti.com>
Date:	Thu, 12 Apr 2012 21:24:29 +0200
From:	"Cousson, Benoit" <b-cousson@...com>
To:	Paul Walmsley <paul@...an.com>
CC:	"Balbi, Felipe" <balbi@...com>, "Mohammed, Afzal" <afzal@...com>,
	Greg KH <greg@...ah.com>,
	"Shilimkar, Santosh" <santosh.shilimkar@...com>,
	"V, Aneesh" <aneesh@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"mgreer@...malcreek.com" <mgreer@...malcreek.com>,
	"msalter@...hat.com" <msalter@...hat.com>
Subject: Re: [PATCH v4 0/7] Add TI EMIF SDRAM controller driver

On 4/12/2012 9:15 PM, Paul Walmsley wrote:
> Hi Benoît,
>
> On Thu, 12 Apr 2012, Cousson, Benoit wrote:
>
>> The LPDDR2 spec does consider as well NVM (Non Volatile Memory), so I think we
>> should stick to driver/memory for EMIF.
>
> Hmm good point!
>
>>> So perhaps something like drivers/memory/dram/ for the SDRAM controllers,
>>> and maybe drivers/memory/ for the GPMC?
>>
>> In fact Felipe was considering something else for that kind of general purpose
>> bus driver like GMPC, C2C and LLI...
>>
>> ... But I do not remember the name :-)
>
> It would be nice if we could separate IP blocks that can drive an Ethernet
> controller or modem chip from the DRAM controllers; they are quite
> different beasts from a common API standpoint.

Yep, fully agree. In fact Felipe's suggestion was something like 
drivers/ocd for off-chip devices, but maybe something like drivers/gpbus 
will highlight a little bit more the bus controller aspect of such driver.

Regards,
Benoit
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