# Freescale i.MX53

if { [info exists CHIPNAME] } {
   set _CHIPNAME $CHIPNAME
} else {
   set _CHIPNAME imx53
}

# CoreSight Debug Access Port
if { [info exists DAP_TAPID] } {
   set _DAP_TAPID $DAP_TAPID
} else {
   set _DAP_TAPID 0x1ba00477
}

jtag newtap $_CHIPNAME DAP -irlen 4 -ircapture 0x1 -irmask 0xf \
        -expected-id $_DAP_TAPID

# 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
}

jtag newtap $_CHIPNAME SJC -irlen 5 -ircapture 0x1 -irmask 0x1f \
        -expected-id $_SJC_TAPID -ignore-version

# GDB target: Cortex-A8, using DAP
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_a8 -chain-position $_CHIPNAME.DAP

# some TCK tycles are required to activate the DEBUG power domain
jtag configure $_CHIPNAME.SJC -event post-reset "runtest 100"

# have the DAP "always" be active
jtag configure $_CHIPNAME.SJC -event setup "jtag tapenable $_CHIPNAME.DAP"

proc imx53_dbginit {target} {
     # General Cortex A8 debug initialisation
     cortex_a8 dbginit
}

# Slow speed to be sure it will work
jtag_rclk 1000
$_TARGETNAME configure -event "reset-start" { jtag_rclk 1000 }

$_TARGETNAME configure -event reset-assert-post "imx53_dbginit $_TARGETNAME"
