Re: [PATCHv1 0/4] Extend FPGA manager and region drivers for

[Richard Gong]

Hi Yilun,

On 11/15/20 8:41 PM, Xu Yilun wrote:
> On Thu, Nov 12, 2020 at 12:06:39PM -0600, richard.gong@xxxxxxxxxxxxxxx wrote:
> > From: Richard Gong <richard.gong@xxxxxxxxx>
> >
> > The customer wants to verify that a FPGA bitstream can be started properly
> > before saving the bitstream to the QSPI flash memory.
> >
> > The customer sends the bitstream via FPGA framework and overlay, the
> > firmware will authenticate the bitstream but not program the bitstream to
> > device. If the authentication passes, the bitstream will be programmed into
> > QSPI flash and will be expected to boot without issues.
>
> So when we have successfully reprogramed region with the
> FPGA_MGR_BITSTREM_AUTHENTICATION flag, the bitstream in QSPI flash is
> updated but not activated, we need an FPGA reboot to activate it, is it?

Correct. If the authentication passes, the bitstream will be programmed 
into QSPI flash and will be expected to boot without issues.

> Thanks,
> Yilun
>
> > Extend FPGA manager and region drivers to support the bitstream
> > authentication feature.
> >
> > Richard Gong (4):
> >    fpga: fpga-mgr: add FPGA_MGR_BITSTREM_AUTHENTICATION flag
> >    fpga: of-fpga-region: add authenticate-fpga-config property
> >    dt-bindings: fpga: add authenticate-fpga-config property
> >    fpga: stratix10-soc: entend driver for bitstream authentication
> >
> >   Documentation/devicetree/bindings/fpga/fpga-region.txt | 1 +
> >   drivers/fpga/of-fpga-region.c                          | 3 +++
> >   drivers/fpga/stratix10-soc.c                           | 5 ++++-
> >   include/linux/fpga/fpga-mgr.h                          | 3 +++
> >   4 files changed, 11 insertions(+), 1 deletion(-)
> >
> > --
> > 2.7.4