bitfile download configuration for openocd

xilinx-xc6v.cfg

if { [info exists CHIPNAME] } {
	set _CHIPNAME $CHIPNAME
} else {
	set _CHIPNAME xc6v
}

set XC6_CFG_IN 0x05
set XC6_JSHUTDOWN 0x0d
set XC6_JPROGRAM 0x0b
set XC6_JSTART 0x0c
set XC6_BYPASS 0x3f

# Device ID Code IR Length Part Name
# 84250093 10 XC6VLX240T
# 44244093 10 XC6VLX75T
# c2a96093 10 XC6VLX50T
# 442a8093 10 XC6VHX380T

jtag newtap $_CHIPNAME tap -irlen 10 -ignore-version \
	-expected-id 0x84250093
pld device virtex2 $_CHIPNAME.tap

proc xc6v_program {tap} {
	global XC6_JSHUTDOWN XC6_JPROGRAM XC6_JSTART XC6_BYPASS
	irscan $tap $XC6_JSHUTDOWN
	irscan $tap $XC6_JPROGRAM
	irscan $tap $XC6_JSTART
	irscan $tap $XC6_BYPASS
}

#xtp038 and xc3sprog approach
proc xc6v_program_iprog {tap} {
       global XC6_JSHUTDOWN XC6_JSTART XC6_BYPASS XC6_CFG_IN XC6_CHIPNAME
       irscan $tap $XC6_JSHUTDOWN
       runtest 16
       irscan $tap $XC6_CFG_IN
       # xtp038 IPROG 16bit flipped
       drscan $tap 16 0xffff 16 0x9955 16 0x66aa 16 0x850c 16 0x7000 16 0x0004
       irscan $tap $XC6_JSTART
       runtest 32
       irscan $tap $XC6_BYPASS
       runtest 1
}