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board: sl28: remove "Useful I2C tricks" section from docs
They are no longer needed, because we now have proper driver support for the sl28cpld management controller. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
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@ -50,21 +50,6 @@ Afterward you can copy this file to your ESP into the /EFI/UpdateCapsule/
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folder. On the next EFI boot this will automatically update your
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folder. On the next EFI boot this will automatically update your
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bootloader.
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bootloader.
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Useful I2C tricks
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-----------------
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The board has a board management controller which is not supported in
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u-boot (yet). But you can use the i2c command to access it.
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- reset into failsafe bootloader::
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> i2c mw 4a 5.1 0; i2c mw 4a 6.1 6b; i2c mw 4a 4.1 42
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- read board management controller version::
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> i2c md 4a 3.1 1
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Builtin watchdog
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Builtin watchdog
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----------------
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----------------
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