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    Subject[PATCH v2 0/3] soc: amlogic: add new meson-gx-socinfo-sm driver
    Date
    The Amlogic Meson SoC Secure Monitor implements a call to retrieve an
    unique SoC ID starting from the GX Family and all new families.
    But GX-family chips (e.g. GXB, GXL and newer) supports also 128-bit
    chip ID. 128-bit chip ID consists 32-bit SoC version and 96-bit OTP data.

    This is the third attempt to publish data from the Amlogic secure monitor
    chipid call. After discussions with Neil Armstrong, it was decided to
    publish the chipid call results through the soc driver. Since
    soc_device_match cannot wait for the soc driver to load, and the secure
    monitor calls in turn depend on the sm driver, it was necessary to create
    a new driver rather than expand an existing one.

    In the patches, in addition to writing the driver:
    - convert commonly used structures and functions of the meson-gx-socinfo
    driver to a header file.
    - add secure-monitor references for amlogic,meson-gx-ao-secure sections
    in dts files of the a1, axg, g12, gx families.


    ---

    Changes V1 -> V2 [1]:
    - create cpu_id structure for socinfo variable
    - create meson_sm_chip_id for result of sm call
    - remove shared functions
    - move from funcs for bit operations to C bit fields

    Links:
    - [1] https://lore.kernel.org/linux-arm-kernel/202311242104.RjBPI3uI-lkp@intel.com/T/


    Viacheslav Bocharov (3):
    soc: amlogic: meson-gx-socinfo: move common code to header file
    soc: amlogic: meson-gx-socinfo-sm: Add Amlogic secure-monitor SoC
    Information driver
    soc: amlogic: meson-gx-socinfo: add new definition for Amlogic A113X
    package

    drivers/soc/amlogic/Kconfig | 10 +
    drivers/soc/amlogic/Makefile | 1 +
    .../soc/amlogic/meson-gx-socinfo-internal.h | 121 +++++++++++
    drivers/soc/amlogic/meson-gx-socinfo-sm.c | 192 ++++++++++++++++++
    drivers/soc/amlogic/meson-gx-socinfo.c | 136 ++-----------
    5 files changed, 338 insertions(+), 122 deletions(-)
    create mode 100644 drivers/soc/amlogic/meson-gx-socinfo-internal.h
    create mode 100644 drivers/soc/amlogic/meson-gx-socinfo-sm.c


    base-commit: 9fc1ccccfd8d53dc7936fe6d633f2373fc9f62e8
    --
    2.43.2


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