#jtag scan chain
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0x0f -expected-id $_CPUTAPID
-set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
+set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME arm920t -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm920t
+
$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x200000 -work-area-size 0x4000 -work-area-backup 1
#reset configuration