tcl/target/hilscher_netx50.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 ################################################################################
   4 # Author: Michael Trensch (MTrensch@googlemail.com)
   5 ################################################################################
   6
   7 #Hilscher netX 50 CPU
   8
   9 if { [info exists CHIPNAME] } {
  10    set _CHIPNAME $CHIPNAME
  11 } else {
  12    set _CHIPNAME netx50
  13 }
  14
  15 if { [info exists ENDIAN] } {
  16    set _ENDIAN $ENDIAN
  17 } else {
  18    set _ENDIAN little
  19 }
  20
  21 if { [info exists CPUTAPID] } {
  22    set _CPUTAPID $CPUTAPID
  23 } else {
  24    set _CPUTAPID 0x25966021
  25 }
  26
  27 # jtag scan chain
  28 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
  29
  30 # that TAP is associated with a target
  31 set _TARGETNAME $_CHIPNAME.cpu
  32 target create $_TARGETNAME arm966e -endian $_ENDIAN -chain-position $_TARGETNAME
  33
  34 # On netX50 SDRAM is not accessible at offset 0xDEAD0-0xDEADF as it is busy from
  35 # DMA controller at init. This function will setup a dummy DMA to free this ares
  36 # and must be called before using SDRAM
  37 proc sdram_fix { } {
  38
  39   mww 0x1c005830 0x00000001
  40
  41   mww 0x1c005104 0xBFFFFFFC
  42   mww 0x1c00510c 0x00480001
  43   mww 0x1c005110 0x00000001
  44
  45   sleep 100
  46
  47   mww 0x1c00510c 0
  48   mww 0x1c005110 0
  49   mww 0x1c005830 0x00000000
  50
  51         puts "SDRAM Fix executed!"
  52 }