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- #
- # Freescale i.MX6 series
- #
- # Supports 6Q 6D 6QP 6DP 6DL 6S 6SL 6SLL
- #
- # Some imx6 chips have Cortex-A7 or an Cortex-M and need special handling
- #
-
- if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
- } else {
- set _CHIPNAME imx6
- }
-
- # CoreSight Debug Access Port
- if { [info exists DAP_TAPID] } {
- set _DAP_TAPID $DAP_TAPID
- } else {
- set _DAP_TAPID 0x4ba00477
- }
-
- jtag newtap $_CHIPNAME cpu -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
-
- # List supported SJC TAPIDs from imx reference manuals:
- set _SJC_TAPID_6Q 0x0191c01d
- set _SJC_TAPID_6D 0x0191e01d
- set _SJC_TAPID_6QP 0x3191c01d
- set _SJC_TAPID_6DP 0x3191d01d
- set _SJC_TAPID_6DL 0x0891a01d
- set _SJC_TAPID_6S 0x0891b01d
- set _SJC_TAPID_6SL 0x0891f01d
- set _SJC_TAPID_6SLL 0x088c201d
-
- # Allow external override of the first SJC TAPID
- if { [info exists SJC_TAPID] } {
- set _SJC_TAPID $SJC_TAPID
- } else {
- set _SJC_TAPID $_SJC_TAPID_6Q
- }
-
- jtag newtap $_CHIPNAME sjc -irlen 5 -ircapture 0x01 -irmask 0x1f \
- -ignore-version \
- -expected-id $_SJC_TAPID \
- -expected-id $_SJC_TAPID_6QP \
- -expected-id $_SJC_TAPID_6DP \
- -expected-id $_SJC_TAPID_6D \
- -expected-id $_SJC_TAPID_6DL \
- -expected-id $_SJC_TAPID_6S \
- -expected-id $_SJC_TAPID_6SL \
- -expected-id $_SJC_TAPID_6SLL
-
- # GDB target: Cortex-A9, using DAP, configuring only one core
- # Base addresses of cores:
- # core 0 - 0x82150000
- # core 1 - 0x82152000
- # core 2 - 0x82154000
- # core 3 - 0x82156000
- set _TARGETNAME $_CHIPNAME.cpu.0
- dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
- target create $_TARGETNAME cortex_a -dap $_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 speed 1000
- $_TARGETNAME configure -event reset-start { adapter speed 1000 }
-
- $_TARGETNAME configure -event reset-assert-post "imx6_dbginit $_TARGETNAME"
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