Update bootflow_2711.md #1294
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Update bootflow_2711.md #1294
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added recovery.bin and links to start.elf variant selection
JamesH65
reviewed
Sep 26, 2019
| @@ -5,15 +5,19 @@ The Pi4 with the BCM2711 SoC has a new, more sophisticated boot process. The add | |||
| The boot flow for the Pi4 is as follows: | |||
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| * BCM2711 SoC powers up | |||
| * On board bootrom loads the main bootloader from the EEPROM. | |||
| * On board bootrom checks for bootloader recovery file (recovery.bin) on the sd-card. If found, it executes it to flash the EEPROM and recovery.bin triggers a reset. | |||
| * Otherwise, the bootrom loads the main bootloader from the EEPROM. | |||
| * Bootloader | |||
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How does the bootloader decide which boot to do from the list below?
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In the release version it doesn't it only supports in SD.
In the BETA version there is a new BOOT_ORDER parameter (added last week) which allows an arbitrary sequence of boot modes. defaulting to sd-only - See network boot docs.
JamesH65
added a commit
that referenced
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Oct 11, 2019
* Update bootflow.md * Create bootflow_2711.md * Update bootflow_2711.md (#1294) added recovery.bin and links to start.elf variant selection * Create pi4_bootloader_config.md * Update bootflow_2711.md * Update pi4_bootloader_config.md * Update pi4_bootloader_config.md * Update pi4_bootloader_config.md * Update README.md * Update bootflow_2711.md * Update bootflow_2711.md * Update bootflow_2711.md * Update booteeprom.md * Update pi4_bootloader_config.md * Update pi4_bootloader_config.md * Update and rename pi4_bootloader_config.md to bcm2711_bootloader_config.md * Update booteeprom.md * Update bootflow_2711.md * Rename hardware/raspberrypi/bootmodes/bcm2711_bootloader_config.md to hardware/raspberrypi/bcm2711_bootloader_config.md * Update booteeprom.md * Update bootflow_2711.md * Update bootflow_2711.md * Update bcm2711_bootloader_config.md * Update bcm2711_bootloader_config.md * Update bcm2711_bootloader_config.md * Update booteeprom.md * Update booteeprom.md * Update bootflow.md * Update bcm2711_bootloader_config.md sd-card to SD card * Update bootflow_2711.md sd-card to SD card * Update booteeprom.md
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added recovery.bin and links to start.elf variant selection