[PATCH 0/3] bus: rifsc: add stm32mp21 support and config dump debug entry

Gatien Chevallier
2025-11-04T13:54:50Z

The STM32MP21x platforms have a slightly different RIFSC. Add support
for these platforms.

Also, the RIF is a complex firewall framework which can be tricky
to debug. To facilitate the latter, add a debugfs entry that can
be used to display the whole RIFSC firewall configuration at runtime.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
---
Gatien Chevallier (3):
dt-bindings: bus: add stm32mp21 RIFSC compatible
arm64: dts: st: set RIFSC as an access controller on stm32mp21x platforms
bus: rifsc: add debugfs entry to dump the firewall configuration

.../bindings/bus/st,stm32mp25-rifsc.yaml | 8 +-
arch/arm64/boot/dts/st/stm32mp211.dtsi | 4 +-
drivers/bus/stm32_rifsc.c | 600 ++++++++++++++++++++-
3 files changed, 605 insertions(+), 7 deletions(-)
---
base-commit: 6146a0f1dfae5d37442a9ddcba012add260bceb0
change-id: 20251104-rifsc_debugfs-5053ea033ce3

Best regards,
--
Gatien Chevallier <gatien.chevallier@foss.st.com>