Disable JTAG on imx6Solo

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Disable JTAG on imx6Solo

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colinhelliwell
Contributor III

Can I get confirmation please that to completely disable JTAG access, the u-boot command would be:

    fuse  prog  0  6  0x100000

(i.e. bit 20 - SJC_DISABLE)

There is no need to program JTAG_SMODE in this case?

Thanks

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joanxie
NXP TechSupport
NXP TechSupport

pls refer to the applicate note as below:

http://cache.freescale.com/files/32bit/doc/app_note/AN4686.pdf 

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colinhelliwell
Contributor III

Hi, Yes I have that document thanks - I really just wanted to be 100% sure about my translation to the corresponding U-Boot commands.

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joanxie
NXP TechSupport
NXP TechSupport

yes, to disable Jtag, setting SJC_DISABLE to 1 is correct