Simone
4697ce3e3b
Add a driver for the integrated memory controller (iMC) SMBus engine on Intel Skylake-X / Cascade Lake-X processors (socket LGA 2066, platform X299, PCU function 8086:2085). The engine provides two SMBus channels — one per pair of DIMM slots — over which SPD EEPROMs, DDR4 thermal sensors and third-party LED controllers are accessible. Exposing it as a pair of standard Linux I2C adapters lets existing tools (i2c-tools, lm-sensors) use it without bespoke sysfs hacks. Key design decisions: - ECAM MMIO access instead of CF8/CFC port I/O (SMM traps port writes) - Dynamic MCFG table parsing for mmcfg_base (no hardcoding) - Support for SMBus BYTE_DATA and WORD_DATA transfers - devm-managed resources with automatic cleanup - Global mutex to serialize transactions across both channels sharing the same ECAM mapping Signed-off-by: Simone Chifari <simone.chifari@gmail.com>
55 lines
749 B
Plaintext
55 lines
749 B
Plaintext
# Kernel build artifacts & temporary files
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*.ko
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*.ko.zst
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*.mod
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*.mod.c
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*.mod.o
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*.o
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*.a
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*.s
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.*.cmd
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.tmp_versions/
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modules.order
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Module.symvers
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/i2c-imc-skylake.mod
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# C/C++ Developer tools and symbol databases
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*.d
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*.o.d
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compile_commands.json
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.clangd/
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.cache/
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tags
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TAGS
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GPATH
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GRTAGS
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GSYMS
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GTAGS
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# IDEs and Editors
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.vscode/
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.idea/
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*.swp
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*.swo
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*~
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*.code-workspace
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# OS-specific files
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.DS_Store
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Thumbs.db
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# Generated patch files (git format-patch output)
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patches/
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# Internal working documents (not for public repo)
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TODO.md
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submission-analysis.md
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README.local.md
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AGENTS.md
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docs/mainline-plan.md
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docs/archive-i2c-imc-driver-plan.md
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docs/submission/submission-instructions.md
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# Private Gitea CI (replaced by .github/workflows/ for public repo)
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.gitea/
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