linux-kernel - Re: [PATCH v2 4/4] nvmem: qfprom: Don't touch certain fuses

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Message-ID: <CAD=FV=Uq6ywMzQhZiEyifpsvyQiXV-YjAPJw81V5FxVkTSEuTw@mail.gmail.com>
Date:   Wed, 21 Oct 2020 14:41:36 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Evan Green <evgreen@...omium.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 4/4] nvmem: qfprom: Don't touch certain fuses

Hi,

On Fri, Oct 16, 2020 at 12:27 PM Evan Green <evgreen@...omium.org> wrote:
>
> Some fuse ranges are protected by the XPU such that the AP cannot
> access them. Attempting to do so causes an SError. Use the newly
> introduced per-soc compatible string, and the newly introduced
> nvmem keepout support to attach the set of regions
> we should not access.
>
> Signed-off-by: Evan Green <evgreen@...omium.org>
> ---
>
> Changes in v2:
>  - Use new core support in qfprom (Srini)
>
>  drivers/nvmem/qfprom.c | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)

Reviewed-by: Douglas Anderson <dianders@...omium.org>