From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <oss@buserror.net>
Date: Fri, 22 Jan 2016 14:09:17 -0600
Subject: [U-Boot] [PATCHv2 2/3] ARMv8/layerscape: Add FSL PPA support
In-Reply-To: <AM4PR0401MB1732A70624692854A931E91E9AC40@AM4PR0401MB1732.eurprd04.prod.outlook.com>
References: <1453369489-14131-1-git-send-email-Zhiqiang.Hou@freescale.com>
 <1453369489-14131-2-git-send-email-Zhiqiang.Hou@freescale.com>
 <AM4PR0401MB1732A70624692854A931E91E9AC40@AM4PR0401MB1732.eurprd04.prod.outlook.com>
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On Fri, 2016-01-22 at 20:05 +0000, york sun wrote:
> On 01/21/2016 01:53 AM, Zhiqiang Hou wrote:
> > From: Hou Zhiqiang <Zhiqiang.Hou@freescale.com>
> > 
> > The FSL Primary Protected Application (PPA) is a software component
> > loaded during boot which runs in TrustZone and remains resident
> > after boot.
> > 
> > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@freescale.com>
> > ---
> > Tested on LS1043A RDB board
> > 
> 
> I presume PSCI is implemented in PPA. How does the SMP boot flow change with
> PPA? U-boot has to remain functional in the absence of PPA, right?
> 
> Would it be possible to write a readme for PPA?

Also, how does the devicetree get updated to indicate the presence of PSCI?

-Scott