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fix(U-Boot): Update key writer lite flow #742

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fix(U-Boot): Update key writer lite flow #742

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7 changes: 1 addition & 6 deletions source/linux/Foundational_Components/U-Boot/UG-Key-Writer-Lite.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -73,10 +73,6 @@ structure by populating the structure and extracting the

A typical flow to do OTP key writer lite is as follows:

#. The cache has to be flushed after loading the binary blob into memory, so enable the config
CONFIG_CMD_CACHE=y in <path-to-tisdk>/board-support/<ti-u-boot-source-code>/configs/<device_defconfig>
and re-build uboot.

#. Addr 0x82000000 is the dedicated address to store the generated
key writer lite binary blob. Clear out 1Kb of memory starting
from 0x82000000:
Expand All @@ -92,11 +88,10 @@ A typical flow to do OTP key writer lite is as follows:

=> fatload mmc 1:1 0x82000000 key_writer_lite_blob.bin

#. Flush the cache.
#. Read the memory address 0x82000000 to verify that you loaded the blob successfully.

.. code-block:: text

=> dcache flush
=> md 0x82000000

#. Efuse modification requires a voltage to be applied on a specific pin (Vpp) during the programming.
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