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- #Script for AT91EB40a
-
- # FIXME use some standard target config, maybe create one from this
- #
- # source [find target/...cfg]
-
- if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
- } else {
- set _CHIPNAME at91eb40a
- }
-
- 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 0x1f0f0f0f
- }
-
-
- #Atmel ties SRST & TRST together, at which point it makes
- #no sense to use TRST, but use TMS instead.
- #
- #The annoying thing with tying SRST & TRST together is that
- #there is no way to halt the CPU *before and during* the
- #SRST reset, which means that the CPU will run a number
- #of cycles before it can be halted(as much as milliseconds).
- reset_config srst_only srst_pulls_trst
-
- #jtag scan chain
- jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-
- #target configuration
- set _TARGETNAME $_CHIPNAME.cpu
- target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME
-
- # speed up memory downloads
- arm7_9 fast_memory_access enable
- arm7_9 dcc_downloads enable
-
- #flash driver
- set _FLASHNAME $_CHIPNAME.flash
- flash bank $_FLASHNAME ecosflash 0x01000000 0x200000 2 2 $_TARGETNAME ecos/at91eb40a.elf
-
- # required for usable performance. Used for lots of
- # other things than flash programming.
- $_TARGETNAME configure -work-area-phys 0x00030000 -work-area-size 0x10000 -work-area-backup 0
-
- $_TARGETNAME configure -event reset-init {
- echo "Running reset init script for AT91EB40A"
- # Reset script for AT91EB40a
- reg cpsr 0x000000D3
- mww 0xFFE00020 0x1
- mww 0xFFE00024 0x00000000
- mww 0xFFE00000 0x01002539
- mww 0xFFFFF124 0xFFFFFFFF
- mww 0xffff0010 0x100
- mww 0xffff0034 0x100
- }
-
- # This target is pretty snappy...
- adapter_khz 16000
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