STMicroelectronics STiH407/STiH410 set-top-box SoC reset controller
Handles the on-chip reset and power-down lines for STMicroelectronics' STiH407 and STiH410 "Monaco" application processors, the system-on-chip parts ST shipped around 2013 for IP set-top boxes and home gateways. It controls things like soft resets, peripheral power-down, and USB PicoPHY resets on those SoCs.
recommendation
Worth keeping but documenting its niche. The hardware is the STiH407/STiH410 "Monaco" generation of set-top-box and home-gateway processors that STMicroelectronics stopped developing new platforms for in January 2016, and closely related parts are now marked obsolete by ST. However, the shared reset-syscfg code is still receiving upstream cleanups as recently as 2023 and 2026, so it is legacy but not abandoned and should stay until the remaining ARCH_STI boards drop out of support.
repository signals
sources
- lore.kernel.org
`drivers/reset/sti/reset-syscfg.c` still received upstream maintenance in 2026, indicating the code is not abandoned.
- lore.kernel.org
The driver saw a functional cleanup in 2023 (`regmap_field_read_poll_timeout` ack wait change), not just historical bring-up traffic.
- cateee.net
LKDDb maps this directory to `CONFIG_STIH407_RESET` and DT compatibles `st,stih407-powerdown`, `st,stih407-softreset`, and `st,stih407-picophyreset`, confirming the supported hardware scope.
- st.com
ST's STiH407/STiH410 databook identifies the SoCs as IP set-top-box/server-box application processors from the 2013 Monaco generation.
- st.com
A closely related STiH-family set-top-box SoC is marked by ST as `Obsolete / Out of Production`, supporting that this product class is legacy rather than current-design silicon.
- allaboutcircuits.com
ST announced in January 2016 that it was discontinuing development of new set-top-box and home-gateway chip platforms, implying no new-generation rollout for this family after that period.
codex reasoning notes (technical)
Local shell inspection showed `ARCH_STI` targets STMicroelectronics consumer-electronics SoCs and specifically mentions STiH407 set-top-box parts; lore_file_timeline showed only historical bring-up for `reset-stih407.c` but continuing maintenance for shared `reset-syscfg.c`, including a 2026 patch (MCP lore_file_timeline). Web search found LKDDb coverage for exact compatibles and ST vendor pages showing the STiH407/410 Monaco STB role plus obsolete status on a nearby STiH412 family part; an STB-business shutdown news item from 2016 supports treating new hardware sales as ended. Because upstream still accepts fixes, this backs off from deprecate/remove to keep-annotate: legacy hardware, low current deployment, but not dead code.