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products:sbc:vim4:development:boot-sequence

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products:sbc:vim4:development:boot-sequence [2022/07/26 03:45]
hyphop [VIM4 OS Boot Priority]
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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 ====== VIM4 OS Boot Priority ====== ====== VIM4 OS Boot Priority ======
  
-VIM4 is capable of booting from the following devices: ''eMMC'', ''TF Card'', ''SPI-Flash''+VIM4 have possibility boot-up from : ''eMMC'', ''TF Card'', ''SPI-Flash''
  
 <WRAP info > <WRAP info >
-We talking there only about 1st stage SOC boot, next second stage os loading possible for any other diveices like USB storagesNVME etc ... and depends from ''u-boot'' configurations+We talking there only about 1st stage SoC boot,  
 +next second stage OS loading possible for any other devices like USB storage's, 
 +NVMe etc ... and depends from ''u-boot'' configurations
 </WRAP> </WRAP>
- 
-/* not sure its needed ? 
-The OS image can be flased into the ''eMMC'', ''TF Card'' or ''SPI-Flash''. 
-*/ 
  
 ===== Default boot priority ===== ===== Default boot priority =====
  
-  - TF-Card <wrap important> TF-card will always take the highest 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: 2022/07/26 03:45 by hyphop