| commit | be75da815f00fa75713cbd7ddd0bdfd2221e39b3 | [log] [tgz] |
|---|---|---|
| author | Ludovic Mermod <ludovic.mermod@arm.com> | Wed Sep 17 11:13:28 2025 +0200 |
| committer | Ludovic Mermod <ludovic.mermod@arm.com> | Wed Sep 17 11:13:28 2025 +0200 |
| tree | ac4594480cc5735d7671655b27d7beb977c4e60d | |
| parent | 5421a611f0b47fe824dd96bc25bedce9ae938abc [diff] |
Initial implementation of the Arm TZ-ASC driver Adds the `Tzc` struct, which uses `safe_mmio` to manipulate the registers of the Arm TZ-ASC component. The structure directly exposes general purposes registers, and other wrappers for failure and region registers. Signed-off-by: Ludovic Mermod <ludovic.mermod@arm.com> Change-Id: Ife2757e62634c634da0d4efabe3171a29245f386
Driver implementation for the TZC-400 TrustZone Address Space Controller.
The driver is designed to function regardless of whether a Memory Management Unit (MMU) is present. The primary role of the OwnedMmioPointer is to manage the lifetime of the peripheral, ensuring proper resource handling. In a system that includes an MMU, the peripheral's lifetime is dynamic because it is mapped into memory rather than having a fixed address. In a system without an MMU, the OwnedMmioPointer can be instantiated directly from the physical address of the register block, providing access to the peripheral without requiring memory mapping.
AID_WIDTH configuration value to manipulate the FailIDRegister.The project is MIT and Apache-2.0 dual licensed, see LICENSE-Apache-2.0 and LICENSE-MIT.
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