linux-kernel - Re: [PATCH 1/3] bus: add Broadcom GISB bus arbiter timeout/error handler

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Date:	Wed, 14 May 2014 12:26:49 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Randy Dunlap <rdunlap@...radead.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Marc Carino <marc.ceeeee@...il.com>,
	Brian Norris <computersforpeace@...il.com>,
	Gregory Fong <gregory.0xf0@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Grant Likely <grant.likely@...aro.org>,
	Shawn Guo <shawn.guo@...aro.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Nicolas Pitre <nicolas.pitre@...aro.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Alexander Shiyan <shc_work@...l.ru>,
	Huang Shijie <b32955@...escale.com>,
	"open list:DOCUMENTATION <linux-doc@...r.kernel.org>, open list:OPEN
	FIRMWARE AND..." <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/3] bus: add Broadcom GISB bus arbiter timeout/error handler

2014-05-14 12:24 GMT-07:00 Randy Dunlap <rdunlap@...radead.org>:
> On 05/14/2014 12:10 PM, Florian Fainelli wrote:
>> This patch adds support for the Broadcom GISB arbiter bus timeout/error
>> handler. GISB is a proprietary bus used by Broadcom Set Top Box
>> System-on-a-chip devices (BCM7xxx) which allows multiple masters and
>> clients to be interfaced with each other.
>>
>> The bus arbiter offers support for generating two interrupts towards the
>> host CPU, thus allowing us to "catch" clock gated masters, or masters
>> being volontarily blocked for powersaving purposes, or do general system
>> troubleshooting.
>>
>> We also register a hook with the ARM fault exception handling to allow
>> printing a more informative message than "imprecise external abort at
>> 0x00000000" for instance.
>>
>> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
>> ---
>>  drivers/bus/Kconfig        |  11 +-
>>  drivers/bus/Makefile       |   1 +
>>  drivers/bus/brcmstb_gisb.c | 289 +++++++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 300 insertions(+), 1 deletion(-)
>>  create mode 100644 drivers/bus/brcmstb_gisb.c
>>
>> diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
>> index 552373c4e362..985db51c0b11 100644
>> --- a/drivers/bus/Kconfig
>> +++ b/drivers/bus/Kconfig
>> @@ -40,5 +40,14 @@ config ARM_CCI
>>       depends on ARM
>>       help
>>         Driver supporting the CCI cache coherent interconnect for ARM
>> -       platforms.
>> +       kplatforms.
>
> Is that a typo?  if not, what are kplatforms?

This is indeed a typo.
-- 
Florian
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