46 lines
1.2 KiB
INI
46 lines
1.2 KiB
INI
# SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
proc xilinx_dna_addr {chip} {
|
|
array set addrs {
|
|
Spartan6 0x30
|
|
Series7 0x17
|
|
}
|
|
return $addrs($chip)
|
|
}
|
|
|
|
# Get the "Device DNA".
|
|
# Most Xilinx FPGA devices contain an embedded, unique device identifier.
|
|
# The identifier is nonvolatile, permanently programmed into
|
|
# the FPGA, and is unchangeable providing a great serial / tracking number.
|
|
# This function returns the DNA as a 64 bit integer with the 7 LSBs zeroed.
|
|
# This is compatible with the FUSE DNA which contains all 64 bits.
|
|
proc xilinx_get_dna {tap chip} {
|
|
set XC7_ISC_ENABLE 0x10
|
|
set XC7_ISC_DISABLE 0x16
|
|
set XC7_ISC_DNA [xilinx_dna_addr $chip]
|
|
|
|
irscan $tap $XC7_ISC_ENABLE
|
|
runtest 64
|
|
irscan $tap $XC7_ISC_DNA
|
|
scan [drscan $tap 32 0 32 0] "%08x %08x" hi lo
|
|
runtest 64
|
|
irscan $tap $XC7_ISC_DISABLE
|
|
runtest 64
|
|
# openocd interprets DR scans as LSB first, bit-reverse it
|
|
return [scan [string reverse [format "%032b%032bb0" $lo $hi]] "%i"]
|
|
}
|
|
|
|
# Print out the "Device DNA" in the same format that impact uses.
|
|
proc xilinx_print_dna {dna} {
|
|
set dna [expr {$dna >> 64 - 57}]
|
|
echo [format "DNA = %057b (0x%016x)" $dna $dna]
|
|
}
|
|
|
|
proc xc7_get_dna {tap} {
|
|
return [xilinx_get_dna $tap Series7]
|
|
}
|
|
|
|
proc xc6s_get_dna {tap} {
|
|
return [xilinx_get_dna $tap Spartan6]
|
|
}
|