set _USER1 0x02

if { [info exists JTAGSPI_IR] } {
	set _JTAGSPI_IR $JTAGSPI_IR
} else {
	set _JTAGSPI_IR $_USER1
}

if { [info exists DR_LENGTH] } {
	set _DR_LENGTH $DR_LENGTH
} else {
	set _DR_LENGTH 1
}

if { [info exists TARGETNAME] } {
	set _TARGETNAME $TARGETNAME
} else {
	set _TARGETNAME $_CHIPNAME.proxy
}

if { [info exists FLASHNAME] } {
	set _FLASHNAME $FLASHNAME
} else {
	set _FLASHNAME $_CHIPNAME.spi
}

target create $_TARGETNAME testee -chain-position $_CHIPNAME.tap
flash bank $_FLASHNAME jtagspi 0 0 0 0 $_TARGETNAME $_JTAGSPI_IR $_DR_LENGTH

proc jtagspi_init {chain_id proxy_bit} {
	# load proxy bitstream $proxy_bit and probe spi flash
	global _FLASHNAME
	pld load $chain_id $proxy_bit
	reset halt
	flash probe $_FLASHNAME
}

proc jtagspi_program {bin addr} {
	# write and verify binary file $bin at offset $addr
	global _FLASHNAME
	flash write_image erase $bin $addr
	flash verify_bank $_FLASHNAME $bin $addr
}
