---
name: "bcmstbrescal"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/bcmstbrescal"
---

# bcmstbrescal(4)

Broadcom Set-top Box reset calibration controller

## NAME

**bcmstbrescal** – Broadcom Set-top Box reset calibration controller

## SYNOPSIS

**bcmstbrescal\* at fdt?**

## DESCRIPTION

The **bcmstbrescal** driver supports the reset calibration controller for the integrated PCIe/SATA components of Broadcom Set-top Box SoCs. This includes the Broadcom BCM2712 SoC that is used in the Raspberry Pi 5. It does not provide direct device driver entry points but makes its functions available to other drivers.

## SEE ALSO

[bcmpcie(4)](/bcmpcie/4.md), [intro(4)](/intro/4.md)

## HISTORY

The **bcmstbrescal** device driver first appeared in OpenBSD 7.8.

## AUTHORS

The **bcmstbrescal** driver was written by Mark Kettenis ⟨*kettenis@openbsd.org*⟩.