From mboxrd@z Thu Jan  1 00:00:00 1970
From: Liviu.Dudau@arm.com (Liviu Dudau)
Date: Wed, 25 Feb 2015 14:47:56 +0000
Subject: [PATCH 1/2] arm64: juno: Add APB registers and LEDs using syscon
In-Reply-To: <20150225135512.GE12377@arm.com>
References: <1424866589-2988-1-git-send-email-linus.walleij@linaro.org>
 <20150225135512.GE12377@arm.com>
Message-ID: <20150225144756.GA905@e106497-lin.cambridge.arm.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, Feb 25, 2015 at 01:55:12PM +0000, Will Deacon wrote:
> On Wed, Feb 25, 2015 at 12:16:29PM +0000, Linus Walleij wrote:
> > This defines the Juno "APB system registers" as a syscon device,
> > and all the LEDs controlled by the APB system registers right
> > below it using the syscon LEDs driver on top of syscon. Define
> > LED0 for heartbeat, LED1 for MMC0 activity and the following
> > four LEDs indicating CPU activity using the Linux-specific
> > DT bindings for triggers.
> > 
> > This is the pattern and same drivers as used on the legacy
> > platform device trees for the ARM Integrators and the RealView
> > PB1176.
> 
> Stupid question, but where are these LEDs located on the platform? I tried
> enabling this, but all it seemed to do was make hackbench slightly slower :)

http://infocenter.arm.com/help/topic/com.arm.doc.ddi0524c/deb1353593789871.html

Section 1.3, look at the left hand side, above the user push buttons.

Best regards,
Liviu

> 
> Will
> 

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