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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]
@@ Line 13: / Line 13: @@
   * SPL-loader scan special areas for next [[#U-Boot-loader]] by ''SD'' => ''eMMC'' => ''SPI-FLash''
+<tabbox common logs>
 ```log spl-boot-example.log
@@ Line 34: / Line 35: @@
 ...
 ```
+<tabbox oowow-mode logs >
 ```log log spl-boot-oowow-mode-example.log
@@ Line 52: / Line 55: @@
 ...
 ```
+</tabbox>
 ===== U-Boot loader =====
@@ Line 75: / Line 81: @@
 ==== OS boot configuration - extlinux config ====
+Basic example:
+```conf extlinux/extlinux.conf
+menu background /logo.bmp
+LABEL Default
+  LINUX /Image
+  INITRD /initrd.img
+  FDTDIR /dtb
+  APPEND ${bootargs} earlycon=uart8250,mmio32,0xfeb50000 console=ttyFIQ0 console=tty0 irqchip.gicv3_pseudo_nmi=0 root=LABEL=ROOTFS rootflags=data=writeback rw rootfstype=ext4
+timeout  10
+default Default
+```
 ===== OOWOW mode =====
+OOWOW mode can be activated by
+  * special on board short-cuts ''FUNCTION'' + ''RESET''
+  * under running OS via special [[#MCU-register-for-start-oowow]] - software way
 WIP:
 ==== OOWOW special mode ====
@@ Line 85: / Line 108: @@
 ==== OOWOW rescue mode ====
+WIP:
+==== MCU register for start oowow ====
 WIP:

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