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Blocked JTAG access to i.Mx6 SoloX

Question asked by Pavel Michlicek Employee on Jan 25, 2017
Latest reply on Feb 7, 2017 by Martin Olejar

Martin Olejar

Customer cannot access to device via JTAG. UBoot is alive. Report from fuses:

=> fuse read 0 0 8
Reading bank 0:

Word 0x00000000: 20820002 df669959 220559d4 010000b4
Word 0x00000004: 00400002 00000000 00000000 00000000
=> fuse read 1 0 8
Reading bank 1:

Word 0x00000000: 000000c0 00000000 00000034 00000000
Word 0x00000004: 00000000 00000000 5b54f57d 00000000

 

OCOTP_CFGx register list:.

=> md.l 0x021bc410 28
021bc410: df669959 df669959 df669959 df669959    Y.f.Y.f.Y.f.Y.f.
021bc420: 220559d4 220559d4 220559d4 220559d4    .Y.".Y.".Y.".Y."
021bc430: 010000b4 010000b4 010000b4 010000b4    ................
021bc440: 00400002 00400002 00400002 00400002    ..@...@...@...@.
021bc450: 00000000 00000000 00000000 00000000    ................
021bc460: 00000000 00000000 00000000 00000000    ................
021bc470: 00000000 00000000 00000000 00000000    ................
021bc480: 000000c0 000000c0 000000c0 000000c0    ................
021bc490: 00000000 00000000 00000000 00000000    ................
021bc4a0: 00000034 00000034 00000034 00000034    4...4...4...4...

 

Howto change fuses settings?

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