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Diffstat (limited to 'tcl/target/xba_revA3.cfg')
-rw-r--r--tcl/target/xba_revA3.cfg86
1 files changed, 86 insertions, 0 deletions
diff --git a/tcl/target/xba_revA3.cfg b/tcl/target/xba_revA3.cfg
new file mode 100644
index 00000000..007cb9e1
--- /dev/null
+++ b/tcl/target/xba_revA3.cfg
@@ -0,0 +1,86 @@
+#Written by: Michael Schwingen <rincewind@discworld.dascon.de>
+
+if { [info exists CHIPNAME] } {
+ set _CHIPNAME $CHIPNAME
+} else {
+ set _CHIPNAME xba_reva3
+}
+
+if { [info exists ENDIAN] } {
+ set _ENDIAN $ENDIAN
+} else {
+ # default to big endian
+ set _ENDIAN big
+}
+
+if { [info exists CPUTAPID ] } {
+ set _CPUTAPID $CPUTAPID
+} else {
+ # force an error till we get a good number
+ set _CPUTAPID 0xffffffff
+}
+
+reset_config trst_and_srst separate
+
+jtag_nsrst_delay 100
+jtag_ntrst_delay 100
+
+#jtag scan chain
+jtag newtap $_CHIPNAME cpu -irlen 7 -ircapture 0x1 -irmask 0x7f -expected-id $_CPUTAPID
+
+set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
+target create $_TARGETNAME xscale -endian $_ENDIAN -chain-position $_TARGETNAME -variant ixp42x
+$_TARGETNAME configure -event reset-init {
+ #############################################################################
+ # setup expansion bus CS, disable external wdt
+ #############################################################################
+ mww 0xc4000000 0xbd113842 #CS0 : Flash, write enabled @0x50000000
+ mww 0xc4000004 0x94d10013 #CS1
+ mww 0xc4000008 0x95960003 #CS2
+ mww 0xc400000c 0x00000000 #CS3
+ mww 0xc4000010 0x80900003 #CS4
+ mww 0xc4000014 0x9d520003 #CS5
+ mww 0xc4000018 0x81860001 #CS6
+ mww 0xc400001c 0x80900003 #CS7
+
+ #############################################################################
+ # init SDRAM controller: 16MB, one bank, CL3
+ #############################################################################
+ mww 0xCC000000 0x2A # SDRAM_CFG: 64MBit, CL3
+ mww 0xCC000004 0 # disable refresh
+ mww 0xCC000008 3 # NOP
+ sleep 100
+ mww 0xCC000004 2100 # set refresh counter
+ mww 0xCC000008 2 # Precharge All Banks
+ sleep 100
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 4 # Auto Refresh
+ mww 0xCC000008 1 # Mode Select CL3
+
+ #mww 0xc4000020 0xffffee # CFG0: remove expansion bus boot flash
+ #mirror at 0x00000000
+
+ #big endian
+ reg XSCALE_CTRL 0xF8
+
+ #
+ # detect flash
+ #
+ flash probe 0
+}
+
+$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x20010000 -work-area-size 0x8060 -work-area-backup 0
+
+
+flash bank cfi 0x50000000 0x400000 2 2 0
+
+init
+reset init
+# set big endian mode
+reg XSCALE_CTRL 0xF8