RTEMS | bsps/raspberrypi5: Add SMP support (!1072)

Kinsey Moore (@opticron) gitlab at rtems.org
Mon Feb 23 15:20:01 UTC 2026




Kinsey Moore started a new discussion on bsps/aarch64/raspberrypi5/start/bspstartmmu.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1072#note_143291

 > +
 > +/*
 > + * Make weak and let the user override.
 > + */
 > +BSP_START_TEXT_SECTION void
 > +raspberrypi5_setup_secondary_cpu_mmu_and_cache( void ) __attribute__ ((weak));
 > +
 > +BSP_START_TEXT_SECTION void
 > +raspberrypi5_setup_secondary_cpu_mmu_and_cache( void )
 > +{
 > +  aarch64_mmu_control *control = &aarch64_mmu_instance;
 > +
 > +  aarch64_mmu_setup();
 > +
 > +  /* Use the existing root page table already configured by CPU0 */
 > +  _AArch64_Write_ttbr0_el1( (uintptr_t) bsp_translation_table_base );

This is not necessary since it is already done by `aarch64_mmu_enable( control )`.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1072#note_143291
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