IMX6SX openOCD configuration file

[tcmichals]

I'm trying to create a new configuration file for the IMX6SX, in mode =0, the chain is |SJC | SDMA| DAP_A9 |DAP_M4

How/where do you get the ID's for each block?  i.e SDMA? DAP_A9? DAP_M4?

# CoreSight Debug Access Port

if { [info exists DAP_TAPID_A9] } {

   set _DAP_TAPID_A9 $DAP_TAPID_A9

} else {

   set _DAP_TAPID_A9 0x1ba00477  <-- How is the number

}

# CoreSight Debug Access Port

if { [info exists DAP_TAPID_M4] } {

   set _DAP_TAPID_M4 $DAP_TAPID_M4

} else {

   set _DAP_TAPID_M4 0x1ba00477 <-- Where/How is this ID created?

}

jtag newtap $_CHIPNAME DAP -irlen 4 -ircapture 0x2 -irmask 0xf \

        -expected-id $_DAP_TAPID_A9

# SDMA / no IDCODE

jtag newtap $_CHIPNAME SDMA -irlen 4 -ircapture 0x0 -irmask 0xf

# SJC

if { [info exists SJC_TAPID] } {

   set _SJC_TAPID SJC_TAPID

} else {

   set _SJC_TAPID 0x0190d01d <-- How is this number created

}

[tcmichals · Accepted solution]

Here is a working imx6sx.cfg.  The issue was in the reset commands.  Able to stop, single step, load

transport select jtag

# Slow speed to be sure it will work

adapter_khz 1000

if { [info exists CHIPNAME] } {

   set  _CHIPNAME $CHIPNAME

} else {

   set  _CHIPNAME imx6sx

}

# CoreSight Debug Access Port

if { [info exists DAP_TAPID] } {

        set _DAP_TAPID $DAP_TAPID

} else {

        set _DAP_TAPID 0x4ba00477

}

jtag newtap $_CHIPNAME dapM4 -irlen 4 -ircapture 0x01 -irmask 0x0f \

        -expected-id $_DAP_TAPID

jtag newtap $_CHIPNAME dapA9 -irlen 4 -ircapture 0x01 -irmask 0x0f \

        -expected-id $_DAP_TAPID

jtag newtap $_CHIPNAME sdma -irlen 5 -ircapture 0x0 -irmask 0x0f \

        -expected-id 0x1

jtag newtap $_CHIPNAME sjc -irlen 4 -ircapture 0x0 -irmask 0x0f \

        -expected-id 0x0891C01D

target create imx6sx.dapM4 cortex_m  -chain-position imx6sx.dapM4

imx6sx.dapM4 configure -event "reset-assert" {

  echo "Reseting ...."

  #cortex_a dbginit

}

imx6sx.dapM4 configure -event reset-init { m4_init }

proc m4_init { } {

  echo "Reset-init..."

  ; # halt the CPU

  halt

  dap apsel 0

  cortex_m reset_config vectreset

}

[fatalfeel]

download the file and refer to

My OpenOcd config file:

http://www.mediafire.com/download/a1nt7bgx72438oi/imx6d-1gb.cfg

http://www.mediafire.com/download/1ukd9y190glid62/imx6q-2gb.cfg

my cfg have some teaching~
Programming Guide: OpenOCD with Eclipse debug u-boot & kernel on i.mx6

[tcmichals]

Jesse,

Thank you your help; the configuration script I'm trying to use is for a imx6sx A9/M4, the cfg files you sent are for imx6d, and imx6q.

[fatalfeel]

look into the cfg file and search ur imx6sx .h file compare of them

do ur own cfg

[Yuri]

Hello,

  Using “attribute IDCODE_REGISTER of MX6SLX” from its BSDL file.

SJC_TAPID 0x0891c01d

  As for CoreSight Debug Access Ports (one for A9, and one for M4)

You may try DAP_TAPID 0x4ba00477 or just to skip them as SDMA.

Have a great day,
Yuri

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[tcmichals]

I was looking at the BSDL file and trying to figure out how you got the values:

SJC_TAPID 0x0891c01d

DAP_TAPID 0x4ba00477

Yes there is  DAP for each core,  so each one will have a different ID? one for the M4 the other for the A9?

Thank you for your help.

[tcmichals]

OK, I finally have OpenOCD connecting; but still need more information.

OK there are 4 taps:

SJC_0              -  0x0891c01d

SDMA_0          -

ARMCS-DP_0 -

Cortex-A9_0

ARMCS-DP_1

Cortex-M4_0

Here is a start for configuration file for opencod:

# Freescale i.MX6SX series single/dual/quad core processor

if { [info exists CHIPNAME] } {

   set  _CHIPNAME $CHIPNAME

} else {

   set  _CHIPNAME imx6sx

}

# CoreSight Debug Access Port A9..

if { [info exists DAP_TAPID] } {

        set _DAP_TAPID $DAP_TAPID

} else {

        set _DAP_TAPID 0x4ba00477

}

jtag newtap $_CHIPNAME dap -irlen 4 -ircapture 0x01 -irmask 0x0f \

        -expected-id $_DAP_TAPID

# SDMA / no IDCODE

jtag newtap $_CHIPNAME sdma -irlen 4 -ircapture 0x00 -irmask 0x0f

# System JTAG Controller

if { [info exists SJC_TAPID] } {

        set _SJC_TAPID $SJC_TAPID

} else {

        set _SJC_TAPID 0x0891c01d

}

#SDMA

set _SJC_TAPID2 0x2191c01d

#DAP for ARM Cortex A9

set _SJC_TAPID3 0x2191e01d

#ARM Cortex A9

set _SJC_TAPID4 0x1191c01d

#DAP for ARM M4

#?????

#ARM Cortex M4

#?????

#below needs to change to only use the M4 not A9

jtag newtap $_CHIPNAME sjc -irlen 5 -ircapture 0x01 -irmask 0x1f \

        -expected-id $_SJC_TAPID -expected-id $_SJC_TAPID2 \

        -expected-id $_SJC_TAPID3 -expected-id $_SJC_TAPID4

# GDB target: Cortex-A9, using DAP, configuring only one core

# Base addresses of cores:

# ARM Cortex -A9  -  0x82150000

# core 0  -  0x82152000

set _TARGETNAME $_CHIPNAME.cpu.0

#need to change this for M4..

target create $_TARGETNAME cortex_a -chain-position $_CHIPNAME.dap \

        -coreid 0 -dbgbase 0x82150000

# some TCK cycles are required to activate the DEBUG power domain

jtag configure $_CHIPNAME.sjc -event post-reset "runtest 100"

proc imx6_dbginit {target} {

        # General Cortex A8/A9 debug initialisation

        cortex_a dbginit

}

# Slow speed to be sure it will work

adapter_khz 1000

$_TARGETNAME configure -event reset-start { adapter_khz 1000 }

proc imx6_dbginit {target} {

        # General Cortex A8/A9 debug initialisation

        cortex_a dbginit

}

# Slow speed to be sure it will work

adapter_khz 1000

$_TARGETNAME configure -event reset-start { adapter_khz 1000 }

$_TARGETNAME configure -event reset-assert-post "imx6_dbginit $_TARGETNAME"

$_TARGETNAME configure -event gdb-attach { halt }

[tcmichals]

I've done an auto scan... here is was devices were found

adapter speed: 1000 kHz

Info : auto-selecting first available session transport "jtag". To override use 'transport select <transport>'.

RCLK - adaptive

Info : RCLK (adaptive clock speed) not supported - fallback to 8 kHz

Warn : There are no enabled taps.  AUTO PROBING MIGHT NOT WORK!!

Info : JTAG tap: auto0.tap tap/device found: 0x4ba00477 (mfg: 0x23b, part: 0xba00, ver: 0x4)

Info : JTAG tap: auto1.tap tap/device found: 0x4ba00477 (mfg: 0x23b, part: 0xba00, ver: 0x4)

Info : TAP auto2.tap does not have IDCODE

Info : JTAG tap: auto3.tap tap/device found: 0x0891c01d (mfg: 0x00e, part: 0x891c, ver: 0x0)

Warn : AUTO auto0.tap - use "jtag newtap auto0 tap -irlen 4 -expected-id 0x4ba00477"

Warn : AUTO auto1.tap - use "jtag newtap auto1 tap -irlen 8 -expected-id 0x4ba00477"

Warn : AUTO auto2.tap - use "jtag newtap auto2 tap -irlen 5 -expected-id 0x00000000"

Warn : AUTO auto3.tap - use "jtag newtap auto3 tap -irlen 2 -expected-id 0x0891c01d"

Error: auto3.tap: IR capture error; saw 0x0003 not 0x0001

Warn : Bypassing JTAG setup events due to errors

Warn : gdb services need one or more targets defined

[tcmichals]

Shown below is the configuration for openOCD (imx6sx.cfg)

Need to enable the clock and start the M4; when the command "monitor reset init " it locks up the A9; some times it does not;  is there some additional registers to setup?

starting openocd:

sudo  ./src/openocd -f interface/ftdi/jtagkey.cfg -f ./tcl/target/imx6sx.cfg

imx6sx.cfg:

transport select jtag

# Slow speed to be sure it will work

adapter_khz 1000

if { [info exists CHIPNAME] } {

   set  _CHIPNAME $CHIPNAME

} else {

   set  _CHIPNAME imx6sx

}

# CoreSight Debug Access Port

if { [info exists DAP_TAPID] } {

        set _DAP_TAPID $DAP_TAPID

} else {

        set _DAP_TAPID 0x4ba00477

}

jtag newtap $_CHIPNAME dapM4 -irlen 4 -ircapture 0x01 -irmask 0x0f \

        -expected-id $_DAP_TAPID

jtag newtap $_CHIPNAME dapA9 -irlen 4 -ircapture 0x01 -irmask 0x0f \

        -expected-id $_DAP_TAPID

jtag newtap $_CHIPNAME sdma -irlen 5 -ircapture 0x0 -irmask 0x0f \

        -expected-id 0x1

jtag newtap $_CHIPNAME sjc -irlen 4 -ircapture 0x0 -irmask 0x0f \

        -expected-id 0x0891C01D

target create imx6sx.dapM4 cortex_m  -chain-position imx6sx.dapM4