> -----Original Message----- > From: Scott Wood [mailto:[email protected]] > Sent: Saturday, January 23, 2016 1:39 AM > To: york sun; Zhiqiang Hou; [email protected]; > [email protected]; [email protected]; Stuart Yoder; > [email protected]; [email protected]; > [email protected]; Zhiqiang Hou > Subject: Re: [PATCHv2 2/3] ARMv8/layerscape: Add FSL PPA support > > 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 <[email protected]> > > > > > > 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 <[email protected]> > > > --- > > > 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? >
One needs to add PSCI node in the DTS for the same, claiming support for PSCI specification. The cpu.enable_method needs to be changed from spin-table to psci as well. See http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/arm/psci.txt for details. _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
