RTEMS | RISC-V: Add support for ESP32-C3 (!1160)

[Gedare Bloom (@gedare)]

Gedare Bloom started a new discussion on bsps/riscv/esp32/irq/irq_c3.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1160#note_147630

 > +
 > +  rtems_vector_number active;
 > +  uint8_t cpu_vector = mcause & 0x1f;
 > +
 > +  /*
 > +   * All interrupts on the ESP32-C3 are external except for exceptions which
 > +   * are handled elsewhere
 > +   */
 > +
 > +  /* Check this CPU vector to see which peripheral has an active interrupt */
 > +  active = get_active_interrupt( cpu_vector );
 > +
 > +  bsp_interrupt_assert( bsp_interrupt_is_valid_vector( active ) );
 > +
 > +  /*
 > +   * TODO Interrupt nesting is not yet supported?

create an issue?

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1160#note_147630
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