Messages in this thread | | | Subject | Re: [PATCH v3 0/4] nvmem: qfprom: Avoid untouchable regions | From | Srinivas Kandagatla <> | Date | Mon, 2 Nov 2020 15:58:06 +0000 |
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On 29/10/2020 00:28, Evan Green wrote: > Certain fuses are protected by the XPU such that the AP cannot > access them. Attempting to do so causes an SError. Introduce an > SoC-specific compatible string, and introduce support into the > nvmem core to avoid accessing specified regions. Then use those > new elements in the qfprom driver to avoid SErrors when usermode > accesses certain registers. > > Changes in v3: > - Fixed example (Doug and rob-bot) > - Use min()/max() macros instead of defining my own (Doug) > - Comment changes to indicate sorting (Doug) > - Add function to validate keepouts are proper (Doug) > > Changes in v2: > - Add other soc compatible strings (Doug) > - Fix compatible string definition (Doug) > - Introduced keepout regions into the core (Srini) > - Use new core support in qfprom (Srini) > > Evan Green (4): > dt-bindings: nvmem: Add soc qfprom compatible strings > arm64: dts: qcom: sc7180: Add soc-specific qfprom compat string > nvmem: core: Add support for keepout regions > nvmem: qfprom: Don't touch certain fuses
Except dts patch, I have applied all the patches, dts patch should go via arm-soc tree!
--srini
> > .../bindings/nvmem/qcom,qfprom.yaml | 17 +- > arch/arm64/boot/dts/qcom/sc7180.dtsi | 2 +- > drivers/nvmem/core.c | 153 +++++++++++++++++- > drivers/nvmem/qfprom.c | 30 ++++ > include/linux/nvmem-provider.h | 17 ++ > 5 files changed, 211 insertions(+), 8 deletions(-) >
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