v1.27

Raspberry Pi 4 UEFI Firmware v1.27

• Update DSDT ACPI table revision (#94) [tianocore/edk2-platforms@7661dff]
• eMMC & DW USB fixes [tianocore/edk2-platforms@bad0b91, tianocore/edk2-platforms@09c5ab1]
• Reorganize WiFi firmware files so that Debian Installer can find them

v1.26

Raspberry Pi 4 UEFI Firmware v1.26

• Add Cypress WiFi firmware binaries to archive
• Revert to full device discovery during init by default, and add new "Fast Boot" feature for partial discovery (#114, #117, #144) [tianocore/edk2-platforms@efdc159]
• Fix wrong miniUART baudrate [tianocore/edk2-platforms@d2339f3]

v1.25

Raspberry Pi 4 UEFI Firmware v1.25

• Fix USB reset (#122) [tianocore/edk2-platforms@2620e05]

v1.24

Raspberry Pi 4 UEFI Firmware v1.24

• Fix Windows ACPI_BIOS_ERROR BSOD [tianocore/edk2-platforms@d223565]

v1.23

Raspberry Pi 4 UEFI Firmware v1.23

• Fix USB support for Raspberry Pi 400 through the inclusion of a recent start4.elf where raspberrypi/firmware#1518 has been fixed (#109).
• Fix overflow in XHCI-HCD while booting Red Hat (#123 ) [tianocore/edk2-platforms/@41b54dbb68036743768c53de9586f68a6d2c986f]
• Add iSCSI support back (#125)
• Reduce DEBUG messages related to using compilation time epoch [tianocore/edk2@44ae214]
• SD/eMMC2 related improvements (#26) [tianocore/edk2-platforms@1b29e91 and subsequent commits, tianocore/edk2-platforms@ac87b52 and subsequent commits]

IMPORTANT NOTICE: If you are using this firmware to boot Windows, please be mindful that the default settings for SD/eMMC2 have changed, which may result in a BSOD. To boot Windows, you will need to go to Device Manager → Raspberry Pi Configuration → SD/MMC Configuration and change uSD/eMMC Routing to Arasan SDHCI.

v1.22

Raspberry Pi 4 UEFI Firmware v1.22

• Fix settings not being stored or being corrupted on reset (#78, #82) [tianocore/edk2-platforms@94e9fba tianocore/edk2-platforms@ae6c236]
• Add internal changes for the eventual support of CM4 & Pi400 [tianocore/edk2-platforms@100e360]
• Fix type of PMU GSIV in GICC (#103) [tianocore/edk2-platforms@734fed7]
• Switch back to the old coloured logo [tianocore/edk2-non-osi@3d1bb66]
• Fix cursor appearing on top of logo (#115) [tianocore/edk2@b585238]

Important Note: The start4.elf and fixup4.dat used in this release are the 2020.12.01 ones, as using newer versions broke xHCI initialization (raspberrypi/firmware#1518, raspberrypi/firmware#1495) with newer revisions of the Bcm2711 SoC. Do not be tempted to use more recent versions of start4.elf, as, unless you are using an old Pi 4 model, this will most likely break USB support.

v1.21

Raspberry Pi 4 UEFI Firmware v1.21

• Add CM4 and Pi400 Device Tree binaries
• Fix Device Tree corruption due to a bug in start4.elf [See raspberrypi/firmware#1445, raspberrypi/firmware#1489]
• Add IORT ACPI table [tianocore/edk2-platforms@dac891d]
• Fix incorrectly mapped 640x480 and 800x600 display resolutions [tianocore/edk2-platforms@38c387d]
• Fix incorrect thermal offset [tianocore/edk2-platforms@78c884b]
• Update JTAG pinout [tianocore/edk2-platforms@8ef23e8]

v1.20

Raspberry Pi 4 UEFI Firmware v1.20

• Add ACPI thermal zone [tianocore/edk2-platforms@d7d7127]
• Add the ability to control a fan, according to current CPU temperature, through GPIO-18 or GPIO-19 [tianocore/edk2-platforms@ee550dd, tianocore/edk2-platforms@7093026]

v1.19

Raspberry Pi 4 UEFI Firmware v1.19

• Work around default console not being set to Graphical [0001-MdeModulePkg-UefiBootManagerLib-Signal-ReadyToBoot-o.patch]
• Fix DBG2 UART not being set properly [tianocore/edk2-platforms@fe34d84]
• Fix multiple SMBIOS issues
• Fix multiple GOP issues
• Fix GICC PMU PPI [tianocore/edk2-platforms@602a7ea]

v1.18

Raspberry Pi 4 UEFI Firmware v1.18

• Update SMBIOS so that it reports the correct platform manufacturer and BIOS date

NOTE: This firmware archive was altered from the AppVeyor produced version in order to use an older version of start4.elf/fixup4.dat on account of the regression introduced in raspberrypi/firmware#1445