dt-bindings: riscv: Add macros for IO PMP attributes #97141
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dcpleung
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Introduce new macros to define bitfields for RISC-V Physical Memory Protection (PMP) attributes, specifically for specifying Read, Write, and Execute permissions for IO memory regions in device tree bindings. The following macros are added: - ATTR_RISCV_TYPE_IO_R: Read access - ATTR_RISCV_TYPE_IO_W: Write access - ATTR_RISCV_TYPE_IO_X: Execute access Corresponding macros for device tree usage are also added: - DT_MEM_RISCV_TYPE_IO_R - DT_MEM_RISCV_TYPE_IO_W - DT_MEM_RISCV_TYPE_IO_X These macros allow device tree source files to precisely describe the intended access permissions for memory-mapped IO regions, enhancing the system's memory protection configuration. Signed-off-by: Firas Sammoura <[email protected]>
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dcpleung
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Introduce new macros to define bitfields for RISC-V Physical Memory Protection (PMP) attributes, specifically for specifying Read, Write, and Execute permissions for IO memory regions in device tree bindings.
The following macros are added:
Corresponding macros for device tree usage are also added:
These macros allow device tree source files to precisely describe the intended access permissions for memory-mapped IO regions, enhancing the system's memory protection configuration.