Raspbian and Volumio

Darmur · September 7, 2020, 11:34am

raspberrypi/rpi-eeprom/blob/master/firmware/release-notes.md

# Raspberry Pi4 bootloader EEPROM release notes

USB MSD boot also requires the firmware from Raspberry Pi OS 2020-08-20 or newer.
https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711_bootloader_config.md

## 2020-09-07 Promote 2020-09-03 to release to STABLE

## 2020-09-03 Only use green LED for error status in bootloader - BETA
   * Turn the green LED on and leave it on unless an error code occurs.
     Previously, SD activity was displayed but that plus muxing with the
     SPI CS made the LED activity confusing.
     The HDMI diagnostics screen now provides much better information
     for determing if the bootloader is running or frozen.
   * CM4 enable GPIO for SD power.
   * Filename should be 2020-09-03

## 2020-08-31 Disable self-update from SD card - BETA
   * Since the ROM will load recovery.bin from the SD card self update is not
     required. Although it functions correctly there is a small risk stale
     pieeprom.upd files would be installed automatically e.g. if the

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this is the changelog of the RPi4 firmware

as you can see, it never mention anything regarding being 32bit or 64bit