# SPDX-License-Identifier: GPL-2.0-or-later # # 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"