Messages in this thread | | | Date | Mon, 16 Nov 2020 10:47:58 +0800 | From | Xu Yilun <> | Subject | Re: [PATCHv1 3/4] dt-bindings: fpga: add authenticate-fpga-config property |
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On Sun, Nov 15, 2020 at 11:21:06AM -0800, Moritz Fischer wrote: > Hi Richard, > > On Thu, Nov 12, 2020 at 12:06:42PM -0600, richard.gong@linux.intel.com wrote: > > From: Richard Gong <richard.gong@intel.com> > > > > Add authenticate-fpga-config property for FPGA bitstream authentication. > > > > Signed-off-by: Richard Gong <richard.gong@intel.com> > > --- > > Documentation/devicetree/bindings/fpga/fpga-region.txt | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt > > index e811cf8..7a512bc 100644 > > --- a/Documentation/devicetree/bindings/fpga/fpga-region.txt > > +++ b/Documentation/devicetree/bindings/fpga/fpga-region.txt > > @@ -187,6 +187,7 @@ Optional properties: > > - external-fpga-config : boolean, set if the FPGA has already been configured > > prior to OS boot up. > > - encrypted-fpga-config : boolean, set if the bitstream is encrypted > > +- authenticate-fpga-config : boolean, set if do bitstream authentication > It is unclear to me from the description whether this entails > authentication + reconfiguration or just authentication. > > If the latter is the case this should probably be described as such.
If it is just authentication, do we still need to disable bridges in fpga_region_program_fpga?
I'm wondering if the FPGA functionalities could still be working when the authenticating is ongoing, or when the authenticating is failed.
Thanks, Yilun
> > > - region-unfreeze-timeout-us : The maximum time in microseconds to wait for > > bridges to successfully become enabled after the region has been > > programmed. > > -- > > 2.7.4 > > > > Thanks
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