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arm: mvebu: ClearFog: document boot selection switches, update UART

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Signed-off-by: Florian Klink <flokli@flokli.de>
Signed-off-by: Stefan Roese <sr@denx.de>
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Florian Klink 2017-12-23 01:42:48 +01:00 • committed by Stefan Roese
parent 6779d65b9f
commit 0f70d705cf
1 changed files with 17 additions and 4 deletions
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21
board/solidrun/clearfog/README
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@ -17,16 +17,29 @@ $ sudo dd if=u-boot-spl.kwb of=/dev/sdX bs=512 seek=1
Please use the correct device node for your setup instead
of "/dev/sdX" here!
Boot selection:
---------------
Before powering up the board, boot selection should be done via the SW1 dip
switch (0: OFF, 1: ON):
- SPI: 00010
- SD/eMMC: 00111
- M.2 SSD: 11100
- UART: 01001 [1]
[1]: According to SolidRun's manual, 11110 should be used for UART booting on
the ClearFog 'Pro' variant.
However, this doesn't work (anymore) at least on Rev. 2.1 (but '01001' as
mentionend for the 'Base' variant does).
Boot from UART:
---------------
Connect the on-board micro-USB (CF Pro: CON11, CF Base: CON5)
to your host.
Set the SW1 DIP switches to UART boot (0: OFF, 1: ON):
ClearFog Base: 01001
ClearFog Pro: 11110
Set the SW1 DIP switches to UART boot (see above).
Run the following command to initiate U-Boot download: