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#Script for ZY1000

#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


if { [info exists CHIPNAME] } {
   set  _CHIPNAME $CHIPNAME
} else {
   set  _CHIPNAME zy1000
}

if { [info exists ENDIAN] } {
   set  _ENDIAN $ENDIAN
} else {
   set  _ENDIAN little
}


#jtag scan chain
if { [info exists CPUTAPID ] } {
   set _CPUTAPID $CPUTAPID
} else {
   set _CPUTAPID 0x1f0f0f0f
}
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID

set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi-s_r4

# at CPU CLK <32kHz this must be disabled
arm7_9 fast_memory_access enable
arm7_9 dcc_downloads enable

flash bank ecosflash 0x01000000 0x200000 2 2 $_TARGETNAME ecos/at91eb40a.elf
$_TARGETNAME configure -event reset-init {
	# Set up chip selects & timings
	mww 0xFFE00000 0x0100273D
	mww 0xFFE00004 0x08002125
	mww 0xFFEe0008 0x02002125
	mww 0xFFE0000c 0x03002125
	mww 0xFFE00010 0x40000000
	mww 0xFFE00014 0x50000000
	mww 0xFFE00018 0x60000000
	mww 0xFFE0001c 0x70000000
	mww 0xFFE00020 0x00000001
	mww 0xFFE00024 0x00000000

	# remap
	mww 0xFFFFF124 0xFFFFFFFF
	mww 0xffff0010 0x100
	mww 0xffff0034 0x100

	#disable 16x5x UART interrupts
	mww 0x08020004 0
}

# required for usable performance. Used for lots of
# other things than flash programming.
$_TARGETNAME configure -work-area-phys 0x00020000 -work-area-size 0x20000 -work-area-backup 0

jtag_khz 16000


proc production_info {} {
	return "Serial number is official MAC number. Format XXXXXXXXXXXX"
}

# There is no return value from this procedure. If it is
# successful it does not throw an exception
#
# Progress messages are output via puts
proc production {firmwarefile serialnumber} {
	if {[string length $serialnumber]!=12} {
		puts "Invalid serial number"
		return
	}

	puts "Power cycling target"
	power off
	sleep 3000
	power on
	sleep 1000
	reset init
	flash write_image erase $firmwarefile 0x1000000 bin
	verify_image $firmwarefile 0x1000000 bin

	# Big endian... weee!!!!
	puts "Setting MAC number to $serialnumber"
	flash fillw [expr 0x1030000-0x8] "0x[string range $serialnumber 2 3][string range $serialnumber 0 1]0000" 1
	flash fillw [expr 0x1030000-0x4] "0x[string range $serialnumber 10 11][string range $serialnumber 8 9][string range $serialnumber 6 7][string range $serialnumber 4 5]" 1
	puts "Production successful"
}


proc production_test {} {
	power on
	sleep 1000
	target_request debugmsgs enable
	reset run
	sleep 25000
	target_request debugmsgs disable
	return "See IP address above..."
}