Sebastian Huber created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1520
Project:Branches: sebhub/rtems:up/riscv-shared-drivers to rtems/rtos/rtems:main Author: Sebastian Huber ## Summary Issue #5790: The CLINT, PLIC and clock drivers require a device tree The first commit lets each BSP provide `<bsp/irqimpl.h>`. The header defines the CLINT, the PLIC, the timebase frequency and the Sstc extension as static inline functions. The riscv and noel BSPs implement it through the device tree. `riscv_fdt_irq_initialize()` holds the device tree lookup and runs in `bsp_start()`. The lookups of the CLINT index and of the PLIC context return `bool`. A BSP with constants returns `true`, and the compiler removes the branch. The second commit moves `irq.c` and `clockdrv.c` to `bsps/riscv/shared/`. The objects are byte-identical before and after the move. ## Test The base is `main` at 32595811b30. | Check | Result | | --- | --- | | Build of 11 RISC-V BSP variants | no warning | | Test suites on Qemu: `rv64imafdc` uni, SMP, S-mode, S-mode SMP and `rv32imafdc` | the same results as `main` | | CLINT and PLIC pointers of each processor, PLIC priority, enable and threshold registers after the start, read through GDB | identical to `main` in all five variants | The failures which remain occur on `main` as well: `ts-fatal-extension`, `ts-validation-intr` in S-mode, `ts-validation-no-clock-0`, `ts-validation-smp-only-0` and `ts-validation-smp-only-2`. `smpthreadlife01` hangs in two of three runs on both trees. ## AI Details <!-- Make sure you have read our statement at https://www.rtems.org/generative-ai/ --> ### Prompt used None as a single prompt. The work was done in an interactive Claude Code session on the RTEMS tree. The task was to share the CLINT, PLIC and clock drivers of the RISC-V BSPs, as agreed in !1471. Each change was directed and reviewed. ### AI model used Claude Opus 5.5 (claude-opus-5-5), through Claude Code. ### How AI was used for the contribution - ( ) Formatting - ( ) Test creation. - (x) Code comments. - ( ) The entire contribution was generated using AI - ( ) AI code completion such as Copilot in VSCode. The implementation and the verification were produced in that session under my direction, and the commit messages were drafted there. ### Access I have not used a product which claims copyright in its output, and I have legitimate access to the one I used. -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1520 You're receiving this email because of your account on gitlab.rtems.org. Unsubscribe from this thread: https://gitlab.rtems.org/-/namespace/49/sent_notifications/5-3p8lcb3gd0jx5x1giqahh0a1z-1d/unsubscribe | Manage all notifications: https://gitlab.rtems.org/-/profile/notifications | Help: https://gitlab.rtems.org/help
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