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/board/at91sam9g20-ek.cfg

@@ -9,13 +9,9 @@
 #
 #	source [find target/...cfg]
 
-# Define basic characteristics for the CPU.  The AT91SAM9G20 processor is a subtle variant of
-# the AT91SAM9260 and shares the same tap ID as it.
+source [find target/at91sam9g20.cfg]
 
-set _CHIPNAME at91sam9g20
 set _FLASHTYPE nandflash_cs3
-set _ENDIAN little
-set _CPUTAPID 0x0792603f
 
 # Set reset type.  Note that the AT91SAM9G20-EK board has the trst signal disconnected.  Therefore
 # the reset needs to be configured for "srst_only".  If for some reason, a zero-ohm jumper is
@@ -23,31 +19,9 @@ set _CPUTAPID 0x0792603f
 
 reset_config srst_only
 
-# Set up the CPU and generate a new jtag tap for AT91SAM9G20.
-
-jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-
-# Use caution changing the delays listed below.  These seem to be
-# affected by the board and type of JTAG adapter.  A value of 200 ms seems
-# to work reliably for the configuration listed in the file header above.
-
 adapter_nsrst_delay 200
 jtag_ntrst_delay 200
 
-# Set fallback clock to 1/6 of worst-case clock speed (which would be the 32.768 kHz slow clock).
-
-jtag_rclk 5
-
-set _TARGETNAME $_CHIPNAME.cpu
-target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME
-
-# Establish internal SRAM memory work areas that are important to pre-bootstrap loaders, etc.  The
-# AT91SAM9G20 has two SRAM areas, one starting at 0x00200000 and the other starting at 0x00300000.
-# Both areas are 16 kB long.
-
-#$_TARGETNAME configure -work-area-phys 0x00200000 -work-area-size 0x4000 -work-area-backup 1
-$_TARGETNAME configure -work-area-phys 0x00300000 -work-area-size 0x4000 -work-area-backup 1
-
 # If you don't want to execute built-in boot rom code (and there are good reasons at times not to do that) in the
 # AT91SAM9 family, the microcontroller is a lump on a log without initialization.  Because this family has
 # some powerful features, we want to have a special function that handles "reset init".  To do this we declare

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

tcl/target/at91sam9260.cfg

@@ -3,42 +3,12 @@
 ######################################
 
 if { [info exists CHIPNAME] } {
-   set  _CHIPNAME $CHIPNAME
+	set AT91_CHIPNAME $CHIPNAME
 } else {
-   set  _CHIPNAME at91sam9260
+	set AT91_CHIPNAME at91sam9260
 }
 
-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
+source [find target/at91sam9.cfg]
 
 # Internal sram1 memory
 $_TARGETNAME configure -work-area-phys 0x00300000 -work-area-size 0x1000 -work-area-backup 1
-
-

tcl/target/at91sam9260_ext_RAM_ext_flash.cfg

@@ -1,48 +1,16 @@
-jtag_rclk 4
-
 ######################################
 # Target:    Atmel AT91SAM9260
 ######################################
 
-if { [info exists CHIPNAME] } {
-   set  _CHIPNAME $CHIPNAME
-} else {
-   set  _CHIPNAME at91sam9260
-}
-
-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
-}
+source [find target/at91sam9261.cfg]
 
 reset_config trst_and_srst
 
+jtag_rclk 4
 
 adapter_nsrst_delay 200
 jtag_ntrst_delay 200
 
-
-jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-
-
-######################
-# Target configuration
-######################
-
-set _TARGETNAME $_CHIPNAME.cpu
-target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm926ejs
-
-# Internal sram1 memory
-$_TARGETNAME configure -work-area-phys 0x00300000 -work-area-size 0x1000 -work-area-backup 1
-
 scan_chain
 $_TARGETNAME configure -event reset-start {
 	# at reset chip runs at 32khz

tcl/target/at91sam9g20.cfg

@@ -0,0 +1,22 @@
+######################################
+# Target:    Atmel AT91SAM9G20
+######################################
+
+if { [info exists CHIPNAME] } {
+	set AT91_CHIPNAME $CHIPNAME
+} else {
+	set AT91_CHIPNAME at91sam9g20
+}
+
+source [find target/at91sam9.cfg]
+
+# Set fallback clock to 1/6 of worst-case clock speed (which would be the 32.768 kHz slow clock).
+
+jtag_rclk 5
+
+# Establish internal SRAM memory work areas that are important to pre-bootstrap loaders, etc.  The
+# AT91SAM9G20 has two SRAM areas, one starting at 0x00200000 and the other starting at 0x00300000.
+# Both areas are 16 kB long.
+
+#$_TARGETNAME configure -work-area-phys 0x00200000 -work-area-size 0x4000 -work-area-backup 1
+$_TARGETNAME configure -work-area-phys 0x00300000 -work-area-size 0x4000 -work-area-backup 1

tcl/target/at91sam9rl.cfg

@@ -3,42 +3,12 @@
 ######################################
 
 if { [info exists CHIPNAME] } {
-   set  _CHIPNAME $CHIPNAME
+   set  AT91_CHIPNAME $CHIPNAME
 } else {
-   set  _CHIPNAME at91sam9rl
+   set  AT91_CHIPNAME at91sam9rl
 }
 
-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
+source [find target/at91sam9.cfg]
 
 # Internal sram1 memory
 $_TARGETNAME configure -work-area-phys 0x00300000 -work-area-size 0x10000 -work-area-backup 1
-
-