My mistake. Here's the .txt file
Index: tcl/target/ar71xx.cfg
===================================================================
--- tcl/target/ar71xx.cfg (revision 0)
+++ tcl/target/ar71xx.cfg (revision 0)
@@ -0,0 +1,58 @@
+# Atheros AR71xx MIPS 24Kc SoC.
+# tested on PB44 refererence board
+
+jtag_nsrst_delay 100
+jtag_ntrst_delay 100
+
+reset_config trst_and_srst
+
+set CHIPNAME ar71xx
+
+jtag newtap $CHIPNAME cpu -irlen 5 -ircapture 0x1 -irmask 0x1f -expected-id 1
+
+set TARGETNAME [format "%s.cpu" $CHIPNAME]
+target create $TARGETNAME mips_m4k -endian big -chain-position $TARGETNAME
+
+$TARGETNAME configure -event reset-init {
+ #setup PLL to lowest common denominator 300/300/150 setting
+ mww 0xb8050000 0x000f40a3 # reset val + CPU:3 DDR:3 AHB:0
+ mww 0xb8050000 0x800f40a3 # send to PLL
+
+ #next command will reset for PLL changes to take effect
+ mww 0xb8050008 3 # set reset_switch and clock_switch
(resets SoC)
+ reset halt # let openocd know that it is in the
reset state
+
+ #initialize_pll
+ mww 0xb8050000 0x800f0080 # set sw_update bit
+ mww 0xb8050008 0 # clear reset_switch bit
+ mww 0xb8050000 0x800f00e8 # clr pwrdwn & bypass
+ mww 0xb8050008 1 # set clock_switch bit
+ sleep 1 # wait for lock
+
+ # Setup DDR config and flash mapping
+ mww 0xb8000000 0xefbc8cd0 # DDR cfg cdl val (rst: 0x5bfc8d0)
+ mww 0xb8000004 0x8e7156a2 # DDR cfg2 cdl val (rst: 0x80d106a8)
+
+ mww 0xb8000010 8 # force precharge all banks
+ mww 0xb8000010 1 # force EMRS update cycle
+ mww 0xb800000c 0 # clr ext. mode register
+ mww 0xb8000010 2 # force auto refresh all banks
+ mww 0xb8000010 8 # force precharge all banks
+ mww 0xb8000008 0x31 # set DDR mode value CAS=3
+ mww 0xb8000010 1 # force EMRS update cycle
+ mww 0xb8000014 0x461b # DDR refresh value
+ mww 0xb8000018 0xffff # DDR Read Data This Cycle value
(16bit: 0xffff)
+ mww 0xb800001c 0x7 # delay added to the DQS line (normal =
7)
+ mww 0xb8000020 0
+ mww 0xb8000024 0
+ mww 0xb8000028 0
+}
+
+# setup working area somewhere in RAM
+$TARGETNAME configure -work-area-phys 0xa0600000 -work-area-size 0x20000
+
+# serial SPI capable flash
+# flash bank <driver> <base> <size> <chip_width> <bus_width>
+
+init
+reset init
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