From: Gregor Herburger <gregor.herburger@linutronix.de>
To: Florian Fainelli <florian.fainelli@broadcom.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@broadcom.com>,
Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Eric Anholt <eric@anholt.net>, Stefan Wahren <wahrenst@gmx.net>
Cc: linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Gregor Herburger <gregor.herburger@linutronix.de>,
Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Subject: [PATCH v4 0/4] firmware: raspberrypi: Add support for the tryboot mode
Date: Fri, 04 Sep 2026 09:46:48 +0200 [thread overview]
Message-ID: <20260904-rpi-tryboot-v4-0-fdee8bc53ff7@linutronix.de> (raw)
This adds support for the tryboot mode on Raspberry Pis. As there is no
documentation other than the downstream implementation [0] the
implementation is based on this.
I tested this on Raspberry Pi 5 and therefore I only added the
properties to this devicetree. But afaik this should work on all
Raspberry Pis. I will add it to the correspondings dts if I get some
hardware to test it.
[0] https://github.com/raspberrypi/linux/commit/eb56da0c1925c07e8929ce4c9fe8aeafa7cb8c7b
---
Changes in v4:
- fix use-after-free error by moving devm_add_action_or_reset before devm_add_action_or_reset
- Rebase onto v7.3-rc1
- Link to v3: https://patch.msgid.link/20260707-rpi-tryboot-v3-0-fda82fe7ed76@linutronix.de
Changes in v3:
- fix use-after-free error by using devm_add_action_or_reset
- ensure endianness of magic byte
- refactor reboot mode registration into separate function
- Link to v2: https://patch.msgid.link/20260630-rpi-tryboot-v2-0-f68d2dc6aa27@linutronix.de
Changes in v2:
- Remove unnecessary reboot_mode_unregister().
- dt-binding: restrict to mode-{normal,tryboot} and only allow 32bit value.
- Link to v1: https://patch.msgid.link/20260626-rpi-tryboot-v1-0-490b1c4c4970@linutronix.de
---
Gregor Herburger (4):
firmware: raspberrypi: reorder rpi_firmware_property_tag enum
dt-bindings: raspberrypi,bcm2835-firmware: Include 'reboot-mode.yaml'
firmware: raspberrypi: Add reboot mode support
arm64: dts: broadcom: bcm2712: Add reboot modes to firmware node
.../arm/bcm/raspberrypi,bcm2835-firmware.yaml | 9 +++++
.../boot/dts/broadcom/bcm2712-rpi-5-b-base.dtsi | 2 ++
drivers/firmware/Kconfig | 2 ++
drivers/firmware/raspberrypi.c | 40 +++++++++++++++++++---
include/soc/bcm2835/raspberrypi-firmware.h | 22 ++++++------
5 files changed, 60 insertions(+), 15 deletions(-)
---
base-commit: cee9395acd8043be0644b25c34bfa86623f2b935
change-id: 20260623-rpi-tryboot-4292c92b0727
Best regards,
--
Gregor Herburger <gregor.herburger@linutronix.de>
next reply other threads:[~2026-09-04 7:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-04 7:46 Gregor Herburger [this message]
2026-09-04 7:46 ` [PATCH v4 1/4] firmware: raspberrypi: reorder rpi_firmware_property_tag enum Gregor Herburger
2026-09-04 7:46 ` [PATCH v4 2/4] dt-bindings: raspberrypi,bcm2835-firmware: Include 'reboot-mode.yaml' Gregor Herburger
2026-09-04 7:46 ` [PATCH v4 3/4] firmware: raspberrypi: Add reboot mode support Gregor Herburger
2026-09-04 16:39 ` Stefan Wahren
2026-09-04 7:46 ` [PATCH v4 4/4] arm64: dts: broadcom: bcm2712: Add reboot modes to firmware node Gregor Herburger
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