tcl/cpld/xilinx-xc6s.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 # xilinx spartan6
   4 # http://www.xilinx.com/support/documentation/user_guides/ug380.pdf
   5
   6 if { [info exists CHIPNAME] } {
   7         set _CHIPNAME $CHIPNAME
   8 } else {
   9         set _CHIPNAME xc6s
  10 }
  11
  12 # the 4 top bits (28:31) are the die stepping. ignore it.
  13 jtag newtap $_CHIPNAME tap -irlen 6 -ignore-version \
  14         -expected-id 0x04000093 \
  15         -expected-id 0x04001093 \
  16         -expected-id 0x04002093 \
  17         -expected-id 0x04004093 \
  18         -expected-id 0x04024093 \
  19         -expected-id 0x04008093 \
  20         -expected-id 0x04028093 \
  21         -expected-id 0x0400E093 \
  22         -expected-id 0x0402E093 \
  23         -expected-id 0x04011093 \
  24         -expected-id 0x04031093 \
  25         -expected-id 0x0401D093 \
  26         -expected-id 0x0403D093
  27
  28 pld device virtex2 $_CHIPNAME.tap
  29
  30 set XC6S_CFG_IN 0x05
  31 set XC6S_JSHUTDOWN 0x0d
  32 set XC6S_JPROGRAM 0x0b
  33 set XC6S_JSTART 0x0c
  34 set XC6S_BYPASS 0x3f
  35
  36 proc xc6s_program {tap} {
  37         global XC6S_JSHUTDOWN XC6S_JPROGRAM XC6S_JSTART XC6S_BYPASS
  38         irscan $tap $XC6S_JSHUTDOWN
  39         irscan $tap $XC6S_JPROGRAM
  40         irscan $tap $XC6S_JSTART
  41         irscan $tap $XC6S_BYPASS
  42 }
  43
  44 #xtp038 and xc3sprog approach
  45 proc xc6s_program_iprog {tap} {
  46         global XC6S_JSHUTDOWN XC6S_JSTART XC6S_BYPASS XC6S_CFG_IN
  47         irscan $tap $XC6S_JSHUTDOWN
  48         runtest 16
  49         irscan $tap $XC6S_CFG_IN
  50         # xtp038 IPROG 16bit flipped
  51         drscan $tap 16 0xffff 16 0x9955 16 0x66aa 16 0x850c 16 0x7000 16 0x0004
  52         irscan $tap $XC6S_JSTART
  53         runtest 32
  54         irscan $tap $XC6S_BYPASS
  55         runtest 1
  56 }
  57
  58 set XC6S_ISC_ENABLE 0x10
  59 set XC6S_ISC_DISABLE 0x16
  60 set XC6S_ISC_DNA 0x30
  61
  62 # Get the "Device DNA" from the Spartan 6.
  63 # Most Xilinx FPGA devices contain an embedded, unique device identifier called
  64 # the "Device DNA". The identifier is nonvolatile, permanently programmed into
  65 # the FPGA, and is unchangeable providing a great serial / tracking number.
  66 proc xc6s_get_dna {tap} {
  67         global XC6S_ISC_ENABLE XC6S_ISC_DISABLE XC6S_ISC_DNA
  68         irscan $tap $XC6S_ISC_ENABLE
  69         runtest 64
  70         irscan $tap $XC6S_ISC_DNA
  71         # Device DNA is 57 bits long, but we can only read 32bits at a time
  72         # with OpenOCD.
  73         set dna [drscan $tap 16 0 16 0 16 0 9 0]
  74         runtest 64
  75         irscan $tap $XC6S_ISC_DISABLE
  76         runtest 64
  77
  78         # Convert the binary data into the order impact uses
  79         scan $dna "%x %x %x %x" v1 v2 v3 v4
  80         set bin_dna [string reverse [concat [format "%09b" $v4][format "%016b" $v3][format "%016b" $v2][format "%016b" $v1]]]
  81
  82         # Return a hex version of binary
  83         scan [format "0b%s" $bin_dna] "%i" hex_dna
  84         return $hex_dna
  85 }
  86
  87 # Print out the "Device DNA" in the same format that impact uses.
  88 proc xc6s_print_dna {tap} {
  89         set hex_dna [xc6s_get_dna $tap]
  90
  91         puts [format "DNA = %57b (0x%x)\n" $hex_dna $hex_dna]
  92 }