* 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 <zhangbingru@rt-thread.com>
Co-authored-by: zhkag <zhkag@foxmail.com>
* [libcpu/aarch64] add smp support
* [libcpu/aarch64] rt_hw_trap_irq get irq instead of iar when using gicv2
* [libcpu/aarch64] disable irq/fiq when switch thread
* [libcpu/aarch64] add gtimer frq set and stack align
guo
GUI
GuEe-GUI