linux-kernel - Re: [V2 2/2] powerpc/512x: add LocalPlus Bus FIFO device driver

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Date:	Wed, 10 Jul 2013 08:57:06 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Alexander Popov <a13xp0p0v88@...il.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Anatolij Gustschin <agust@...x.de>,
	Grant Likely <grant.likely@...aro.org>,
	Chris Ball <cjb@...top.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Timur Tabi <timur@...i.org>, linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [V2 2/2] powerpc/512x: add LocalPlus Bus FIFO device driver

On 07/10/2013 08:46 AM, Gerhard Sittig wrote:
> On Wed, Jul 10, 2013 at 14:21 +0400, Alexander Popov wrote:
>>
>> This is SCLPC device driver for the Freescale MPC512x.
>> It is needed for Direct Memory Access to the devices on LocalPlus Bus.
>>
>> Signed-off-by: Alexander Popov <a13xp0p0v88@...il.com>
>> ---
>>  arch/powerpc/boot/dts/mpc5121.dtsi            |   8 +-
>>  arch/powerpc/include/asm/mpc5121.h            |  32 ++
>>  arch/powerpc/platforms/512x/Kconfig           |   6 +
>>  arch/powerpc/platforms/512x/Makefile          |   1 +
>>  arch/powerpc/platforms/512x/mpc512x_lpbfifo.c | 485 ++++++++++++++++++++++++++
>>  5 files changed, 531 insertions(+), 1 deletion(-)
>>  create mode 100644 arch/powerpc/platforms/512x/mpc512x_lpbfifo.c
>>
>> diff --git a/arch/powerpc/boot/dts/mpc5121.dtsi b/arch/powerpc/boot/dts/mpc5121.dtsi
>> index bd14c00..6e0b0c0 100644
>> --- a/arch/powerpc/boot/dts/mpc5121.dtsi
>> +++ b/arch/powerpc/boot/dts/mpc5121.dtsi
>> @@ -261,7 +261,13 @@
>>  		/* LocalPlus controller */
>>  		lpc@...00 {
>>  			compatible = "fsl,mpc5121-lpc";
>> -			reg = <0x10000 0x200>;
>> +			reg = <0x10000 0x100>;
>> +		};
>> +
>> +		sclpc@...00 {
>> +			compatible = "fsl,mpc512x-lpbfifo";

The binding needs to be documented.

Rob

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