3 if { [info exists CHIPNAME] } {
4 set _CHIPNAME $CHIPNAME
6 set _CHIPNAME at91eb40a
9 if { [info exists ENDIAN] } {
15 if { [info exists CPUTAPID ] } {
16 set _CPUTAPID $CPUTAPID
18 # force an error till we get a good number
19 set _CPUTAPID 0x1f0f0f0f
23 #Atmel ties SRST & TRST together, at which point it makes
24 #no sense to use TRST, but use TMS instead.
26 #The annoying thing with tying SRST & TRST together is that
27 #there is no way to halt the CPU *before and during* the
28 #SRST reset, which means that the CPU will run a number
29 #of cycles before it can be halted(as much as milliseconds).
30 reset_config srst_only srst_pulls_trst
33 #format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
34 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
37 set _TARGETNAME $_CHIPNAME.cpu
38 target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi-s_r4
40 # speed up memory downloads
41 arm7_9 fast_memory_access enable
42 arm7_9 dcc_downloads enable
45 set _FLASHNAME $_CHIPNAME.flash
46 flash bank $_FLASHNAME ecosflash 0x01000000 0x200000 2 2 0 ecos/at91eb40a.elf
48 # required for usable performance. Used for lots of
49 # other things than flash programming.
50 $_TARGETNAME configure -work-area-phys 0x00030000 -work-area-size 0x10000 -work-area-backup 0
52 $_TARGETNAME configure -event reset-init {
53 puts "Running reset init script for AT91EB40A"
54 # Reset script for AT91EB40a
57 mww 0xFFE00024 0x00000000
58 mww 0xFFE00000 0x01002539
59 mww 0xFFFFF124 0xFFFFFFFF