at91sam9: factorise cpu support

all at91sam9 are nearly the same except sram and soc name

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>

tcl/target/at91sam9.cfg

@@ -0,0 +1,39 @@
+######################################
+# Target:    Atmel AT91SAM9
+######################################
+
+if { [info exists AT91_CHIPNAME] } {
+	set _CHIPNAME $AT91_CHIPNAME
+} else {
+	error "you must specify a chip name"
+}
+
+if { [info exists ENDIAN] } {
+	set _ENDIAN $ENDIAN
+} else {
+	set _ENDIAN little
+}
+
+if { [info exists CPUTAPID ] } {
+	set _CPUTAPID $CPUTAPID
+} else {
+	# force an error till we get a good number
+	set _CPUTAPID 0x0792603f
+}
+
+reset_config trst_and_srst separate trst_push_pull srst_open_drain
+
+#
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+
+adapter_nsrst_delay 300
+jtag_ntrst_delay 200
+
+jtag_rclk 3
+
+######################
+# Target configuration
+######################
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm926ejs