RTEMS | bsp/aarch64/raspberrypi: Add Mailbox Support (!915)

Fri Jan 16 20:46:31 UTC 2026

Kinsey Moore started a new discussion on bsps/aarch64/raspberrypi/include/bsp/raspberrypi.h: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/915#note_139010

 > -#define BCM2711_MBOX_CHANNEL_VUART 2
 > -/* VCHIQ channel */
 > -#define BCM2711_MBOX_CHANNEL_VCHIQ 3
 > -/* LEDs channel */
 > -#define BCM2711_MBOX_CHANNEL_LED 4
 > -/* Button channel */
 > -#define BCM2711_MBOX_CHANNEL_BUTTON 5
 > -/* Touch screen channel */
 > -#define BCM2711_MBOX_CHANNEL_TOUCHS 6
 > -
 > -#define BCM2711_MBOX_CHANNEL_COUNT 7
 > -/* Property tags (ARM <-> VC) channel */
 > -#define BCM2711_MBOX_CHANNEL_PROP_AVC 8
 > -/* Property tags (VC <-> ARM) channel */
 > -#define BCM2711_MBOX_CHANNEL_PROP_VCA 9
 > +#define TAG_GET_FIRMWARE_REV 0x00000001

If these definitions are only usable with the mailbox, they should be in mailbox.h as well. Should this also be an enum or are there arbitrary values that can be passed in?

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/915#note_139010
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