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products:sbc:edge2:hardware:boot-sequence [2022/08/29 02:50] hyphop [U-Boot OS boot sequence] |
products:sbc:edge2:hardware:boot-sequence [2022/08/29 03:06] (current) hyphop [SPL loader] |
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* SPL-loader scan special areas for next [[# | * SPL-loader scan special areas for next [[# | ||
+ | <tabbox common logs> | ||
```log spl-boot-example.log | ```log spl-boot-example.log | ||
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... | ... | ||
``` | ``` | ||
+ | |||
+ | <tabbox oowow-mode logs > | ||
```log log spl-boot-oowow-mode-example.log | ```log log spl-boot-oowow-mode-example.log | ||
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... | ... | ||
``` | ``` | ||
+ | |||
+ | </ | ||
+ | |||
===== U-Boot loader ===== | ===== U-Boot loader ===== | ||
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==== OS boot configuration - extlinux config ==== | ==== OS boot configuration - extlinux config ==== | ||
+ | Basic example: | ||
+ | |||
+ | ```conf extlinux/ | ||
+ | menu background /logo.bmp | ||
+ | LABEL Default | ||
+ | LINUX /Image | ||
+ | INITRD /initrd.img | ||
+ | FDTDIR /dtb | ||
+ | APPEND ${bootargs} earlycon=uart8250, | ||
+ | timeout | ||
+ | default Default | ||
+ | ``` | ||
===== OOWOW mode ===== | ===== OOWOW mode ===== | ||
+ | OOWOW mode can be activated by | ||
+ | |||
+ | * special on board short-cuts '' | ||
+ | * under running OS via special [[# | ||
WIP: | WIP: | ||
+ | |||
==== OOWOW special mode ==== | ==== OOWOW special mode ==== | ||
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==== OOWOW rescue mode ==== | ==== OOWOW rescue mode ==== | ||
+ | |||
+ | WIP: | ||
+ | |||
+ | ==== MCU register for start oowow ==== | ||
WIP: | WIP: | ||