iMX25 target support

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

tcl/target/imx25.cfg

+#
+# imx25 config
+#
+
+if { [info exists CHIPNAME] } {
+   set  _CHIPNAME $CHIPNAME
+} else {
+   set  _CHIPNAME imx25
+}
+
+if { [info exists ENDIAN] } {
+   set  _ENDIAN $ENDIAN
+} else {
+   set  _ENDIAN little
+}
+
+if { [info exists SJCTAPID ] } {
+   set _SJCTAPID $SJCTAPID
+} else {
+   set _SJCTAPID 0x1b900f0f
+}
+jtag newtap $_CHIPNAME sjc -irlen 4 -expected-id $_SJCTAPID
+
+if { [info exists CPUTAPID ] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+   set _CPUTAPID 0x07926041
+}
+jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
+
+jtag newtap $_CHIPNAME whatchacallit -irlen 4 -ircapture 0x0 -irmask 0x0 -expected-id 0x0
+
+if { [info exists SDMATAPID ] } {
+   set _SDMATAPID $SDMATAPID
+} else {
+   set _SDMATAPID 0x0882301d
+}
+jtag newtap $_CHIPNAME sdma -irlen 5 -expected-id $_SDMATAPID
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME