From mboxrd@z Thu Jan  1 00:00:00 1970
From: York Sun <yorksun@freescale.com>
Date: Wed, 20 Aug 2014 12:41:24 -0700
Subject: [U-Boot] [PATCH v3] kmp204x: reset the Zarlink clocking chips
 at power up only
In-Reply-To: <1408455604-11008-1-git-send-email-valentin.longchamp@keymile.com>
References: <53EB97AC.7060308@freescale.com>
	<1408455604-11008-1-git-send-email-valentin.longchamp@keymile.com>
Message-ID: <53F4F9E4.5030507@freescale.com>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

On 08/19/2014 06:40 AM, Valentin Longchamp wrote:
> There is the requirement on the chassis's backplane that when the clocks
> have been enabled, they then should not disappear.
> 
> Resetting the Zarlink clocking chips at unit reset violates this
> requirement because the backplane clocks are not supplied during the
> reset time.
> 
> To avoid this side effect, both the Zarlink clocking chips are reset
> only at power up.
> 
> Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
> 
> ---
> 
> Changes in v3:
> - fix the commentaries that also had to be changed
> 

Applied to u-boot-mpc85xx master branch, awaiting for upstream.

York