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products:sbc:vim4:development:boot-sequence

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products:sbc:vim4:development:boot-sequence [2022/08/22 03:07]
hyphop old revision restored (2022/08/22 14:00)
products:sbc:vim4:development:boot-sequence [2022/08/22 03:33] (current)
hyphop old revision restored (2022/08/22 14:54)
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 <WRAP info > <WRAP info >
-We talking there only about 1st stage SOC boot, +We talking there only about 1st stage SoC boot, 
 next second stage OS loading possible for any other devices like USB storage's, next second stage OS loading possible for any other devices like USB storage's,
 NVMe etc ... and depends from ''u-boot'' configurations NVMe etc ... and depends from ''u-boot'' configurations
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 ===== Default boot priority ===== ===== Default boot priority =====
  
-  - TF-Card <wrap important> higher priority</wrap>+  - TF-Card <wrap important>always highest priority</wrap>
   - eMMC   - eMMC
   - SPI-Flash   - SPI-Flash
  
-===== U-boot shell usage ===== +===== U-Boot shell usage ===== 
-We can swap the boot priority of the ''eMMC'' and ''SPI-Flash'' via the [[products:sbc:vim4:development:kbi|KBI(Khadas Boot Instructions)]] from u-boot shell+You can change the boot priority of the ''eMMC'' and ''SPI-Flash'' via the [[products:sbc:vim4:development:kbi|KBI(Khadas Boot Instructions)]] from u-boot shell
  
-Change boot priority to: ''TF-Card => eMMC => SPI-Flash''+Change boot priority to: ''TF-Card'' => ''eMMC'' => ''SPI-Flash''
  
 ```shell ```shell
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 ``` ```
  
-Change boot priority to: ''TF-Card => SPI-Flash => eMMC''+Change boot priority to: ''TF-Card'' => ''SPI-Flash'' => ''eMMC''
  
 ```shell ```shell
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 Hold ''FUNCTION'' and short press ''RESET'' to force boot [[:OOWOW]] service from SPI-flash, and skip other boot sources Hold ''FUNCTION'' and short press ''RESET'' to force boot [[:OOWOW]] service from SPI-flash, and skip other boot sources
  
-<WRAP important>TF-card slot must be empty</WRAP>+<WRAP important>TF-card slot must be empty.</WRAP>
  
  
Last modified: 2022/08/22 03:07 by hyphop