feat: libcpu/risc-v: unify low-level bringups

2024-09-11T22:06:51Z

This patch consolidates the separated architecture-specific code for rv64 (virt64 and c906) under a more unified approach. The changes aim to enhance maintainability and code reuse, reducing duplication between these two architectures while adding small improvements in porting compatibility. Changes: - Modified build scripts (SConscript) for both virt64 and c906 to remove ASID and vector dependencies when not required. - Updated c906's sbi.c and sbi.h to use standard integer types (uint32_t) and include the missing header. - Unified inline function declaration for `sbi_call` across both c906 and virt64 using `rt_inline`. - Disabled FPU and vector in c906's startup assembly file, aligning it with the virt64 handling. - Corrected syscall handler type definitions in c906 for consistency. Signed-off-by: Shell

[libcpu][SConscript]规范group名为libcpu

2024-02-20T00:39:05Z

sync branch rt-smart. (#6641)

2022-12-03T04:07:44Z

* Synchronize the code of the rt mart branch to the master branch. * TTY device * Add lwP code from rt-smart * Add vnode in DFS, but DFS will be re-write for rt-smart * There are three libcpu for rt-smart: * arm/cortex-a, arm/aarch64 * riscv64 Co-authored-by: Rbb666 Co-authored-by: zhkag

rt-thread.git/libcpu/risc-v/t-head/c906/SConscript, branch copilot/remove-vbus-code-implementation

feat: libcpu/risc-v: unify low-level bringups

[libcpu][SConscript]规范group名为libcpu

sync branch rt-smart. (#6641)