topic Re: JTAG ICE stop. in i.MX Processors

JTAG ICE stop.

takashitakahash — Tue, 23 Jun 2015 09:20:31 GMT

Hi community.

Our costomer developing Use the BSP of "imx_3.10.53_1.1.0_ga" .
When it is activated by connecting the J-TAG ICE (PARTNER-Jet), and will stop at always the same place during the startup of the Kernel.

platform caam_sm: restored 192-bit black key:
platform caam_sm: [0000] 26 60 31 8e d0 79 45 22
platform caam_sm: [0008] 06 f6 69 1f d6 7c 33 e5
platform caam_sm: [0016] 4c 7e 75 3e 45 bd 9a 40
platform caam_sm: [0024] ab eb 2b cd 04 92 4f cf
platform caam_sm: restored 256-bit black key:
platform caam_sm: [0000] 0a 96 77 6a 38 0c a1 2e
platform caam_sm: [0008] bd 99 ea 54 32 aa 51 75
platform caam_sm: [0016] 76 c9 27 41 9d ee 80 80
platform caam_sm: [0024] 01 77 c6 ae 2a 86 1a 29
← sure it stops here
snvs-secvio 20cc000.caam-snvs: violation handlers armed - non-secure state
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver

It stops near the log of the CAAM disabled Module below CAAM-related Kernel Config from where to start now.

CONFIG_CRYPTO_DEV_FSL_CAAM
CONFIG_CRYPTO_DEV_FSL_CAAM_SM
CONFIG_CRYPTO_DEV_FSL_CAAM_SM_TEST
CONFIG_CRYPTO_DEV_FSL_CAAM_SECVIO

In addition, a similar event even sabresd (using rel_imx_3.10.53_1.1.1) occurred.

In the appropriate BSP,there are restrictions concerning the use of ICE?

Re: JTAG ICE stop.

igorpadykov — Tue, 23 Jun 2015 15:07:11 GMT

Hi Takashi

HAB ("caam-snvs" log messages) may restrict usage of ICE, please look at description of

bit HAB_JDE, register OCOTP_SCSn sect.46.5.7 Software Controllable Signals

0: JTAG debugging is not enabled by the HAB

1: JTAG debugging is enabled by the HAB, though this signal may be gated off using fuse

JTAG_HEO (see Table 5-10. Fusemap Descriptions) :

1 - HAB JTAG enable is overridden (HAB may not enable JTAG debug access)

Best regards

igor

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Re: JTAG ICE stop.

niranjanbc — Tue, 13 Sep 2016 12:54:09 GMT

Any idea how to enable HAB_JDE bit through Jlink Debugger