pieeprom-2026-04-14: 2712: Update recovery.bin to support more SDRAM variants (latest)#821
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timg236 merged 1 commit intoraspberrypi:masterfrom Apr 14, 2026
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…variants (latest) * Update the slow (non tuned) DDR init used by recovery.bin to support more SDRAM variants. * Add an error code for the bootloader memory test. The bootloader contains simple memory test to validate that the DDR init firmware has completed successfully. If the DDR init firmware reports an error code then continue to display 8 short flashes. However, if the DDR init firmware is successful but the memory test fails then display 5 short flashes. This is very unlikely to fail in practise but is useful debug mechanism when stress testing boards e.g. different temperatures. * Automatically reboot after a displaying a fatal error Change the fatal error handler to perform a hard reset after displaying the fatal error three times in a row instead of waiting forever. This change can mitigate intermittent hardware issues due e.g. power supplies, HATs or board temperature. Displaying the error pattern three times first rate limits reboots. If a faster reboot is required then the BOOT_WATCHDOG setting should be used instead. To disable this feature set REBOOT_ON_FATAL_ERROR=0 in the bootloader config.
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The bootloader contains a simple memory test to validate that the DDR init firmware has completed successfully. If the DDR init firmware reports an error code then continue to display 8 short flashes. However, if the DDR init firmware is successful but the memory test fails then display 5 short flashes. This is very unlikely to fail in practise but is useful debug mechanism when stress testing boards e.g. different temperatures.
Change the fatal error handler to perform a hard reset after displaying the fatal error three times in a row instead of waiting forever. This change can mitigate intermittent hardware issues due e.g. power supplies, HATs or board temperature. Displaying the error pattern three times first rate limits reboots. If a faster reboot is required, then the BOOT_WATCHDOG setting should be used instead. To disable this feature, set REBOOT_ON_FATAL_ERROR=0 in the bootloader config.