[PATCH v2 0/3] arm: layerscape: Add sfp driver

Sean Anderson sean.anderson at seco.com
Sat Aug 13 08:16:07 CEST 2022


On 4/22/22 2:34 PM, Sean Anderson wrote:
> This adds a driver for the Security Fuse Processor (SFP). It only
> supports Trust Architecture (TA) 2.1 SFPs, but it should be fairly
> trivial to add support for TA 3.1 SFPs. See [1] for Linux
> bindings/driver support.
> 
> [1] https://lore.kernel.org/linux-arm-kernel/20220422145147.2210587-1-sean.anderson@seco.com/
> 
> Changes in v2:
> - Use the sfp clock directly, instead of assuming we get the platform
>    clock. This corresponds better to what other drivers on these devices
>    do.
> - Rename clock to "sfp" to be more descriptive.
> - update the clockgen node for ls1021a
> 
> Sean Anderson (3):
>    arm: layerscape: Add sfp driver
>    ARM: dts: ls1021a: update the clockgen node
>    arch: layerscape: Add SFP binding
> 
>   MAINTAINERS                   |   5 +
>   arch/arm/dts/fsl-ls1012a.dtsi |   7 +
>   arch/arm/dts/fsl-ls1043a.dtsi |   7 +
>   arch/arm/dts/fsl-ls1046a.dtsi |   7 +
>   arch/arm/dts/ls1021a.dtsi     |  87 ++++-----
>   drivers/misc/Kconfig          |  14 ++
>   drivers/misc/Makefile         |   1 +
>   drivers/misc/ls2_sfp.c        | 350 ++++++++++++++++++++++++++++++++++
>   8 files changed, 426 insertions(+), 52 deletions(-)
>   create mode 100644 drivers/misc/ls2_sfp.c
> 

ping


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