Update changelog for 27.0-1 release

* pitowers/master:
  2025-01-22: 2712: Promote 2025-01-22 to default release (default)
  pieeprom-2025-01-22: 2712: Add DT property for hash of signed boot image (latest)
  test: Update test script
  scripts: Failover to /usr/lib before /lib if FIRMWARE_ROOT is not set

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -40,11 +40,8 @@ body:
     multiple: true
     options:
       - Raspberry Pi 5
-      - Raspberry Pi 500
       - Raspberry Pi 4 Mod. B
       - Raspberry Pi 400
-      - Raspberry Pi CM5
-      - Raspberry Pi CM5 Lite
       - Raspberry Pi CM4
       - Raspberry Pi CM4 Lite
       - Raspberry Pi CM4-S

.github/workflows/test.yml

@@ -1,31 +0,0 @@
-name: Test EEPROM Config
-
-on:
-  pull_request:
-    branches: [ 'master' ]
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      
-      - name: Set up Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: '3.x'
-          
-      - name: Create and activate virtual environment
-        run: |
-          python -m venv venv
-          source venv/bin/activate
-          
-      - name: Install dependencies
-        run: |
-          pip install pycryptodomex
-      
-      - name: Run EEPROM Config Tests
-        run: |
-          cd test
-          chmod +x test-rpi-eeprom-config
-          ./test-rpi-eeprom-config 

.gitignore

@@ -1,3 +1 @@
 *.swp
-images-2711/
-images-2712/

LICENSE

@@ -6,14 +6,10 @@ Files: *
 Copyright: 2019, Raspberry Pi (Trading) Ltd.
 License: BSD-3
 
-Files: firmware-2711/*
+Files: firmware/*
 Copyright: 2019, Raspberry Pi (Trading) Ltd.
 License: custom
 
-Files: firmware-2712/*
-Copyright: 2024, Raspberry Pi (Trading) Ltd.
-License: custom
-
 License: BSD-3
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions

debian/.gitignore

@@ -0,0 +1,9 @@
+.debhelper/
+debhelper-build-stamp
+files
+rpi-eeprom/
+rpi-eeprom-images/
+*.debhelper.log
+*.debhelper
+*.substvars
+*.1

debian/LICENCE.bootloader

@@ -0,0 +1,28 @@
+Copyright (c) 2019, Raspberry Pi (Trading) Ltd.
+All rights reserved.
+
+Redistribution.  Redistribution and use in binary form, without
+modification, are permitted provided that the following conditions are
+met:
+
+* This software may only be used for the purposes of developing for,
+  running or using a Raspberry Pi device.
+* Redistributions must reproduce the above copyright notice and the
+  following disclaimer in the documentation and/or other materials
+  provided with the distribution.
+* Neither the name of the copyright holder nor the names of its
+  contributors may be used to endorse or promote products derived
+  from this software without specific prior written permission.
+
+DISCLAIMER.  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE. 

debian/control

@@ -0,0 +1,29 @@
+Source: rpi-eeprom
+Section: misc
+Priority: optional
+Maintainer: Serge Schneider <serge@raspberrypi.com>
+Build-Depends: debhelper-compat (= 12), help2man, python3-minimal
+Standards-Version: 4.6.2
+Homepage: https://github.com/raspberrypi/rpi-eeprom/
+Vcs-Browser: https://github.com/raspberrypi/rpi-eeprom/
+Vcs-Git: https://github.com/raspberrypi/rpi-eeprom.git
+
+Package: rpi-eeprom
+Architecture: all
+Depends: ${shlibs:Depends}, ${misc:Depends}, raspi-utils, python3,
+ binutils, pciutils, python3-pycryptodome
+Breaks: rpi-eeprom-images (<<7.2)
+Replaces: rpi-eeprom-images (<<7.2)
+Recommends: flashrom
+Provides: rpi-eeprom-images
+Description: Raspberry Pi 4/5 boot EEPROM updater
+ Checks whether the Raspberry Pi bootloader EEPROM is up-to-date and updates
+ the EEPROM.
+
+Package: rpi-eeprom-images
+Architecture: all
+Depends: ${misc:Depends}, rpi-eeprom (>=7.2)
+Priority: optional
+Section: oldlibs
+Description: transitional package
+ This is a transitional package. It can safely be removed.

debian/copyright

@@ -0,0 +1 @@
+../LICENSE

debian/default/rpi-eeprom-update

@@ -0,0 +1 @@
+FIRMWARE_RELEASE_STATUS="default"

debian/gbp.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+upstream-tree = master
+debian-branch = debian/bookworm

debian/rpi-eeprom.docs

@@ -0,0 +1 @@
+debian/LICENCE.bootloader

debian/rpi-eeprom.install

@@ -0,0 +1,26 @@
+rpi-eeprom-config usr/bin/
+rpi-eeprom-update usr/bin/
+rpi-eeprom-digest usr/bin/
+tools/rpi-bootloader-key-convert usr/bin/
+tools/rpi-otp-private-key usr/bin/
+tools/rpi-sign-bootcode usr/bin/
+
+debian/default/ etc/
+
+firmware-2711/default usr/lib/firmware/raspberrypi/bootloader-2711/
+firmware-2711/latest usr/lib/firmware/raspberrypi/bootloader-2711/
+
+firmware-2711/critical usr/lib/firmware/raspberrypi/bootloader-2711/
+firmware-2711/stable usr/lib/firmware/raspberrypi/bootloader-2711/
+firmware-2711/beta usr/lib/firmware/raspberrypi/bootloader-2711/
+
+firmware-2711/release-notes.md usr/lib/firmware/raspberrypi/bootloader-2711/
+
+firmware-2712/default usr/lib/firmware/raspberrypi/bootloader-2712/
+firmware-2712/latest usr/lib/firmware/raspberrypi/bootloader-2712/
+
+firmware-2712/critical usr/lib/firmware/raspberrypi/bootloader-2712/
+firmware-2712/stable usr/lib/firmware/raspberrypi/bootloader-2712/
+firmware-2712/beta usr/lib/firmware/raspberrypi/bootloader-2712/
+
+firmware-2712/release-notes.md usr/lib/firmware/raspberrypi/bootloader-2712/

debian/rpi-eeprom.maintscript

@@ -0,0 +1,2 @@
+dir_to_symlink /lib/firmware/raspberrypi/bootloader-2711/beta latest 17.0+pi5+1-1
+dir_to_symlink /lib/firmware/raspberrypi/bootloader-2712/beta latest 17.0+pi5+1-1

debian/rpi-eeprom.manpages

@@ -0,0 +1,2 @@
+debian/rpi-eeprom-update.1
+debian/rpi-eeprom-config.1

debian/rpi-eeprom.postinst

@@ -0,0 +1,39 @@
+#!/bin/sh
+# postinst script for rpi-eeprom
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <postinst> `configure' <most-recently-configured-version>
+#        * <old-postinst> `abort-upgrade' <new version>
+#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
+#          <new-version>
+#        * <postinst> `abort-remove'
+#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
+#          <failed-install-package> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    configure)
+    ;;
+
+    abort-upgrade|abort-remove|abort-deconfigure)
+    ;;
+
+    *)
+        echo "postinst called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0

debian/rpi-eeprom.postrm

@@ -0,0 +1,40 @@
+#!/bin/sh
+# postrm script for rpi-eeprom
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <postrm> `remove'
+#        * <postrm> `purge'
+#        * <old-postrm> `upgrade' <new-version>
+#        * <new-postrm> `failed-upgrade' <old-version>
+#        * <new-postrm> `abort-install'
+#        * <new-postrm> `abort-install' <old-version>
+#        * <new-postrm> `abort-upgrade' <old-version>
+#        * <disappearer's-postrm> `disappear' <overwriter>
+#          <overwriter-version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    purge)
+        rm -rf /var/lib/raspberrypi/bootloader/backup/
+    ;;
+    remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+    ;;
+
+    *)
+        echo "postrm called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0

debian/rpi-eeprom.prerm

@@ -0,0 +1,38 @@
+#!/bin/sh
+# prerm script for rpi-eeprom
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <prerm> `remove'
+#        * <old-prerm> `upgrade' <new-version>
+#        * <new-prerm> `failed-upgrade' <old-version>
+#        * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
+#        * <deconfigured's-prerm> `deconfigure' `in-favour'
+#          <package-being-installed> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    remove|upgrade|deconfigure)
+    ;;
+
+    failed-upgrade)
+    ;;
+
+    *)
+        echo "prerm called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0

debian/rpi-eeprom.rpi-eeprom-update.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Check for Raspberry Pi EEPROM updates
+After=boot-firmware.mount
+
+[Service]
+Type=oneshot
+RemainAfterExit=true
+ExecStart=/usr/bin/rpi-eeprom-update -s -a
+
+[Install]
+WantedBy=multi-user.target

debian/rules

@@ -0,0 +1,27 @@
+#!/usr/bin/make -f
+#export DH_VERBOSE = 1
+
+include /usr/share/dpkg/pkg-info.mk
+
+%:
+	dh $@
+
+override_dh_installsystemd:
+	dh_installsystemd --name=rpi-eeprom-update
+
+override_dh_auto_build: debian/rpi-eeprom-update.1 debian/rpi-eeprom-config.1
+
+override_dh_install:
+	mkdir -p debian/rpi-eeprom/var/lib/raspberrypi/bootloader/backup/
+	dh_install
+
+debian/rpi-eeprom-update.1:
+	help2man -N --version-string="${DEB_VERSION_UPSTREAM}" --help-option="-h" \
+		--name="Checks whether the Raspberry Pi bootloader EEPROM is \
+up-to-date and updates the EEPROM" \
+		--output=$@ ./rpi-eeprom-update
+
+debian/rpi-eeprom-config.1:
+	help2man -N --version-string="${DEB_VERSION_UPSTREAM}" --help-option="-h" \
+		--name="Bootloader EEPROM configuration tool for the Raspberry Pi 4/5" \
+		--output=$@ ./rpi-eeprom-config

debian/salsa-ci.yml

@@ -0,0 +1,28 @@
+include:
+  - https://salsa.debian.org/salsa-ci-team/pipeline/raw/master/recipes/debian.yml
+  - $CI_SERVER_URL/$CI_PROJECT_NAMESPACE/salsa-ci/-/raw/pios/rpi.yml
+
+variables:
+  SALSA_CI_ARM_RUNNER_TAG: salsa-arm64
+  SALSA_CI_DISABLE_BUILD_PACKAGE_ARM64: 0
+  SALSA_CI_DISABLE_BUILD_PACKAGE_ARMHF: 0
+  SALSA_CI_DISABLE_APTLY: 0
+  SALSA_CI_DISABLE_VERSION_BUMP: 1
+  # These require priviledged docker containers to work
+  SALSA_CI_DISABLE_AUTOPKGTEST: 1
+  SALSA_CI_DISABLE_PIUPARTS: 1
+  SALSA_CI_DISABLE_REPROTEST: 1
+  SALSA_CI_IMAGES_LINTIAN: ${SALSA_CI_IMAGES}/lintian:bookworm
+  # Work around lintian bug in bookworm
+  # https://lists.debian.org/debian-lint-maint/2024/02/msg00039.html
+  SALSA_CI_LINTIAN_SUPPRESS_TAGS: 'bad-distribution-in-changes-file'
+
+extract-source:
+  variables:
+    GIT_DEPTH: 0
+    GIT_STRATEGY: clone
+  before_script:
+    - git fetch origin master:master
+
+publish to apt:
+  extends: .publish-public

debian/source/format

@@ -0,0 +1 @@
+3.0 (quilt)

debian/source/lintian-overrides

@@ -0,0 +1,2 @@
+debian-copyright-is-symlink
+source-is-missing [tools/vl805]

firmware-2711/release-notes.md

@@ -1,293 +1,5 @@
 # Raspberry Pi4 bootloader EEPROM release notes
 
-## 2025-12-09: Promote 2025-12-08 to the default release (default)
-
-## 2025-12-08: arm_loader: Add machine ID derived from OTP values (latest)
-
-* arm_loader: Add machine ID derived from OTP values
-  Machine ID is generated and exposed in device tree as rpi-machine-id
-* arm_ldconfig: Avoid double os_prefix on initramfs
-  When using auto_initramfs we were picking up prefix from the kernel,
-  but also adding os_prefix later:
-  fname = prefixed_path(initramfs_file, os_prefix, temp_path, sizeof(temp_path));
-  See: https://forums.raspberrypi.com/viewtopic.php?t=394238
-* recovery: Use OTP rpiboot GPIO if non-zero
-  If an rpiboot GPIO has already been written to OTP then default to
-  that value if C(program_rpiboot_gpio) is not specified on config.txt.
-
-## 2025-11-27: helpers/config_loader: Also support bootvar0 eeprom config on Pi4 (latest)
-
-* helpers/config_loader: Also support bootvar0 eeprom config on Pi4
-  This allows an eeprom config setting (e.g. BOOTARG0=0x10) to be set on a board
-  which config.txt can use as a conditional expression (e.g. [bootarg0&0x10]).
-* pi5: Write over-voltage config to the UART log
-  Write the high level over-voltage configuration to the UART log for
-  diagnostic purposes.
-* Stop partition-walk after boot-mode timeout/retries limit
-  Fix a fatal assert with USB boot where the partition walk could be
-  retried after the USB timeout/retry limit had been reached.
-  See: https://github.com/raspberrypi/rpi-eeprom/issues/776
-* rpiboot: Extend metadata to report status of operations
-  Report success/fail status of recovery operations based on config.txt settings
-
-## 2025-11-21: recovery: Restore recovery_wait option (latest)
-
-* recovery: Restore recovery_wait option
-  Restore the recovery_wait config.txt option. If this option is set
-  then recovery.bin will not rename itself or reboot. Instead flash
-  the activity LED on completion.
-  This option can be useful when creating an SD card to erase the
-  EEPROM or program the RPIBOOT gpio on multiple devices.
-  If recovery_wait=1 and recovery.bin is run from the SD card then
-  indicate success of erase_eeprom=1 or program_rpiboot_gpio=N was
-  set instead of requiring the EEPROM to be updated.
-* Manufacture test updates for SDRAM.
-
-## 2025-11-09: Promote 2025-11-05 to the default release (default)
-
-## 2025-11-05: Add iommu_dma_numa_policy=interleave when needed (latest)
-
-* arm_loader: Add iommu_dma_numa_policy=interleave when needed
-  This applies a similar numa interleave for iommu dma kernel allocations.
-  This includes buffers allocated for hevc and v3d.
-  See: https://forums.raspberrypi.com/viewtopic.php?t=392666
-
-## 2025-10-14: recovery: Use ROM boot-mode to detect rpiboot (latest)
-
-* recovery: Use ROM boot-mode flag to detect rpiboot mode
-  In recovery-mode use the bootrom register flag to detect the
-  original boot-mode rather than looking at whether the rpiboot
-  usb-device boot driver is initialised.
-* Manufacturing test updates.
-
-## 2025-10-08: Fix accidental set of PM_RSTS bit 5 when stopping watchdog (latest)
-
-* Fix accidental set of PM_RSTS bit 5 when stopping watchdog
-  Fix an issue in the watchdog code where the raw PM_RSTS value
-  was used as partition number. If HADWRF (bit 5) was set (on reboot)
-  this could cause bit 10 to be set. If an OS didn't clear the partition
-  flags on reboot then this could end up being treated as request to
-  boot from partition 32.
-
-## 2025-10-03: arm_dt: Report OTP SDRAM size via device-tree (latest)
-
-* arm_dt: Report OTP SDRAM size via device-tree
-  Report the SDRAM in gigabits via device-tree as
-  /proc/device-tree/chosen/rpi-sdram-size-gbit. Scripts reporting the
-  device-capabilities should use this value (if defined) instead of the
-  memory-size field in the boardrev row.
-* Apply UART_BAUD in early bootsys UART init
-  Update bootsys and fatal error handlers to use the user
-  defined UART_BAUD rate.
-* rpifwcrypto: Add support for ECDSA P-256 key generation
-  Also, slightly improve the entropy by passing the system
-  timer value as the personality string.
-
-## 2025-09-23: Fix network install regression on Pi4 (latest)
-
-* Fix network install regression on Pi4
-  Fix an issue with the ECDSA signature code which caused network
-  install to fail to load on Pi4.
-* Fix TFTP to allow larger files
-  Allow TFTP block counter to rollover to 0.
-  See: https://github.com/raspberrypi/rpi-eeprom/issues/720
-
-## 2025-09-22: Add LZ4 decompressor (latest)
-
-* Add LZ4 decompressor
-  LZ4 gives a better compression ratio than the previously used CK compress. The bootloader can now decompress both LZ4 compressed files and CK compressed files.
-* rpifwcrypto: Add GET_CRYPTO_PRIVATE_KEY mailbox API
-  For provisioning, add a new mailbox API which returns the private key
-  in DER format. The API will return an error if the key-status for
-  the specified key is LOCKED.
-* config: Add support for board_attributes in conditional expressions
-  Add support for the board-attributes row in config.txt conditional
-  expressions. This can be used to change boot behavior for
-  Compute Module Lite / No-WiFi etc.
-* board_info: Log the OTP board revision at startup
-  Log the board revision plus the raw OTP value at startup.
-
-## 2025-08-27: Fix PARTITION property to allow default (0) partition to be overridden (latest)
-
-* Fix PARTITION property to allow default (0) partition to be overridden
-  Fix the partition selection to allow the bootloader PARTITION
-  property to override the reboot partition number if the reboot
-  argument is 0 or > 31. Previously, it was only allowing
-  partition numbers > 31 to be overridden.
-  See: https://github.com/raspberrypi/rpi-eeprom/issues/743
-* Enable RPIBOOT in BOOT_ORDER / set-reboot-order
-  Previously, rpiboot required the bootrom to have initialised
-  rpiboot before running the firmware. Update the rpiboot
-  initialisation so that rpiboot to be enabled after booting from
-  SPI flash.
-  This could be selectively enabled by setting BOOT_ORDER property
-  (0x3) behind a GPIO conditional in the EEPROM config. On Pi5, the
-  set_reboot_order config.txt option or mailbox property can be
-  used to set a one-time boot-order on
-  N.B. There is no timeout for RPIBOOT so this should only be set
-  as the last boot mode OR used with a boot_watchdog.
-
-## 2025-08-20: Fix PARTITION_WALK for missing start.elf files (latest)
-
-* Fix PARTITION_WALK for missing start.elf files
-  Fix a missing call to bootloader_reset_state so that PARTITION_WALK
-  will work if the boot-partition is FAT, contains config.txt etc
-  but does not have valid firmware.
-  See: https://github.com/raspberrypi/rpi-eeprom/issues/738
-* force_eeprom_read=0 disables HAT I2C
-  Although setting force_eeprom_read=0 has always prevented the HAT EEPROM
-  from being read, with the recent changes to support Power HAT+s it does
-  not prevent an early scan to see if such an EEPROM exists. This can be
-  problematic for applications where the I2C0 pins have been repurposed.
-  Change the inhibit logic to cut all HAT I2C probing off at the knees,
-  including any automatic settings of usb_max_current_enable, as it should
-  always have done.
-  See: https://github.com/raspberrypi/firmware/issues/1985
-* bootcode.bin: Add support for boot.img ramdisk on Pi3 and earlier
-  Add support for boot.img ramdisk support, enable by adding boot_ramdisk=1
-  in config.txt
-* rpifwcrypto: Preliminary firmware support for rpifwcrypto API
-* Add config.txt to block GET_CUSTOMER_PRIVATE_KEY mailbox API
-  lock_device_private_key=1
-
-## 2025-08-13: Enable PARTITION_WALK property by default (latest)
-
-* Enable the PARTITION_WALK property by default
-  Previously, the new PARTITION_WALK which searches for bootable
-  partitions after a failure had to be explicitly enabled. Change
-  the default to be enabled by default. It can be switched off by
-  setting PARTITION_WALK=0 in the EEPROM config.
-* Optimise bootmain for size on Pi4
-  Pi4 only has a 512KB SPI flash EEPROM and the addition of features
-  plus fixes is now causing contention for space between the code and
-  the EEPROM config. Since bootmain is only responsible for loading
-  start.elf revert to the original configuration which is optimised
-  for size rather than speed. Pi5 continues to be optimised for speed.
-
-## 2025-07-17: arm_loader: Also require the early-watchdog property (latest)
-
-* arm_loader: Also require the early-watchdog property
-  The change correcting the implementation of dtoverlay_is_enabled had the
-  unintended consequence of causing the firmware to enable the watchdog
-  even though the user had not explicitly requested it. This is harmless
-  on Linux because the watchdog driver takes over and disarms it, but on
-  other operating systems this can lead to a reboot. Avoid this problem
-  by also requiring the presence of a new property, "early-watchdog".
-  See: https://github.com/raspberrypi/firmware/issues/1980
-* helpers/config_loader: Add bootvar0 eeprom config that can be used in config.txt section expressions
-  This allows an eeprom config setting (e.g. BOOTVAR0=0x10) to be set on a board
-  which config.txt can use as a conditional expression (e.g. [bootvar0&0x10]).
-* arm_loader: Fix boot-watchdog stop on Pi4
-  Fix a problem where the boot_watchdog heartbeat timer was not
-  stopped correctly which could cause it to clash with the kernel
-  watchdog driver.
-
-## 2025-07-03: Check for SD card overcurrent (latest)
-
-* board_info: Use the Ethernet PHY address probed by the bootloader
-  Use the Ethernet PHY address supplied by the bootloader in
-  preference to the static configurations defined in start4.elf
-* Check for SD card overcurrent on Pi5, Pi500 and Pi4
-  Before booting, the bootloader now checks the SD power switch
-  overcurrent signal. The overcurrent signal occurs if the SD
-  card is damaged and has a short circuit which will cause it to
-  get hot.
-  If an over-current condition is detected the bootloader switches
-  switches off power to the SD card and waits five seconds before
-  probing the SD card again. This error is displayed on the
-  diagnostic screen, the UART and the activity LED (1 long, 2 short)
-  flashes.
-  The check can be switched to a non-blocking warning  by setting
-  SD_OVERCURRENT_CHECK=0 in the bootloader config.
-* Add a new error code pattern for SD overcurrent
-  Add a new error pattern (1 long, 2 short) to signal SD card
-  overcurrent.
-* Add support for a bootloader watchdog
-  Add support for a boot watchdog (using PM_RSTC hw wdog) which will
-  trigger if the OS is not started within the specified amount of time. The
-  watchdog is enabled by setting the BOOT_WATCHDOG_TIMEOUT=N (seconds)
-  property in the bootlaoder config.
-  The BOOT_WATCHDOG_PARTITION=P property can be set to pass a different
-  partition number to the bootloader on reset if the watchdog
-  is triggered.
-  The boot watchdog is automatically cleared just before starting
-  the OS and (optionally) enabling the kernel watchdog.
-* Skip first SD boot if no card detected
-  On platforms with an SD Card detect signal, skip the first attempt to
-  boot from SD if the card appears to be absent. This can save over a
-  second on a cold boot, and a little under a second for a reboot.
-
-## 2025-05-16: 2711: Automatically set revoke_devkey if program_pubkey=1 (latest)
-
-* 2711: (recovery) Automatically set revoke_devkey if program_pubkey=1
-  Previously, on BCM2711 products it was possible to program the key
-  hash without revoking the development key. This can be useful for
-  testing but should never be used in production because it is possible
-  to an install an older version of the bootloader which doesn't
-  support secure-boot.  Since the secure-boot tools are stable and
-  have improved usability (RPi secure-boot provisioner) this test
-  feature not necessary and is just a security risk so the behaviour
-  is changed to always revoke the development key if program_pubkey=1.
-  This change is not relevant on BCM2712 because secure-boot requires
-  that the second stage bootloader is counter-signed with the customer's
-  private key.
-
-## 2025-05-13: Promote 2025-05-08 to the default release (default) (automatic)
-
-## 2025-05-08: Implement TCP window for net boot (latest)
-* Signed boot and HTTP boot mode
-  HTTP boot mode is supposed to be disabled if signed boot is enabled and
-  a host is not specified. The code is checking the http_secure flag to
-  enforce this. But this is valid now we support custom CA certs.
-  Only disable HTTP mode if we're using the default HOST.
-* Implement TCP window for net boot
-  The minimal IP stack used for https booting lacks the ability to cache
-  packets received out of order, which can lead to severe slowdown when
-  it happens. The problem seems to affect some ISPs more than others.
-  The receive window implemented here copes with packet losses of 10%.
-* netboot: Correct the TCP MSS
-* Correct msecs in debug timestamps
-  The fractional part of timestamps in UART debug output was showing the
-  100ths and 1000ths of a second, rather than 10ths and 100ths, causing
-  strange sequences that appear to jump backwards.
-
-## 2025-02-17: Promote 2025-02-11 to default release (default)
-
-## 2025-02-11: recovery: Walk partitions to delete recovery.bin (latest)
-
-* recovery: Walk partitions to delete recovery.bin
-  Previously, recovery.bin would fail to delete itself
-  if the bootrom loaded recovery.bin where there are multiple FAT
-  partitions and the first partition does not contain recovery.bin
-  Update the rename code to walk the partition table to find
-  the recovery.bin file to delete.
-* Enable overriding of high partition numbers
-  Previously, the PARTITION=N bootloader config setting would only
-  be used at power on reset or if the partition number passed to
-  reboot was zero.
-  Change the behaviour so that the bootloader config PARTITION
-  property can override the reboot partition number if the reboot
-  parameter is > 31.
-* Walk the partition table if the requested partition is not bootable
-  Previously, if the specified boot partition was not bootable the
-  bootloader would stop and advance to the next BOOT_ORDER. If the
-  new PARTITION_WALK option is set to 1 the bootloader will now
-  check each partition in turn starting from the specified partition
-  before advancing the BOOT_ORDER.
-  This feature is intended for use with A/B systems to handle the case
-  where autoboot.txt is missing / corrupted. This change enables
-  the system to failover to the next available bootable partition.
-  The autoboot.txt file is not scanned during the partition-walk
-  phase i.e. there is no recursive processing of autoboot.txt files.
-  This option is only supported on physical block devices
-  (SD, NVMe, USB) and not RAMDISK. USB assumes a single high speed
-  device, partition walks on multiple USB devices is not recommended
-  and may cause timeouts.
-* Improve keyboard handling in boot menu
-  Try and make it more likely that we have enough time to perform key
-  detection.
-  Ignore mice, which were being enumerated and slowing things down.
-
 ## 2024-12-07: Enable banklow (and so NUMA) by default (latest)
 
 * Enable banklow (and so NUMA) by default