src/target/target/xba_revA3.cfg

   1 #Written by: Michael Schwingen <rincewind@discworld.dascon.de>
   2
   3 reset_config trst_and_srst separate
   4
   5 jtag_nsrst_delay 100
   6 jtag_ntrst_delay 100
   7
   8 #jtag scan chain
   9 #format L IRC IRCM IDCODE (Length, IR Capture, IR capture Mask, IDCODE)
  10 jtag_device 7 0x1 0x7f 0x7e
  11
  12 target create target0 xscale -endian big -chain-position 0 -variant ixp42x
  13 [new_target_name] configure -event reset-init {
  14         #############################################################################
  15         # setup expansion bus CS, disable external wdt
  16         #############################################################################
  17         mww 0xc4000000  0xbd113842  #CS0  : Flash, write enabled @0x50000000
  18         mww 0xc4000004  0x94d10013  #CS1
  19         mww 0xc4000008  0x95960003  #CS2
  20         mww 0xc400000c  0x00000000  #CS3
  21         mww 0xc4000010  0x80900003  #CS4
  22         mww 0xc4000014  0x9d520003  #CS5
  23         mww 0xc4000018  0x81860001  #CS6
  24         mww 0xc400001c  0x80900003  #CS7
  25
  26         #############################################################################
  27         # init SDRAM controller: 16MB, one bank, CL3
  28         #############################################################################
  29         mww 0xCC000000  0x2A # SDRAM_CFG: 64MBit, CL3
  30         mww 0xCC000004     0 # disable refresh
  31         mww 0xCC000008     3 # NOP
  32         sleep 100
  33         mww 0xCC000004  2100 # set refresh counter
  34         mww 0xCC000008     2 # Precharge All Banks
  35         sleep 100
  36         mww 0xCC000008     4 # Auto Refresh
  37         mww 0xCC000008     4 # Auto Refresh
  38         mww 0xCC000008     4 # Auto Refresh
  39         mww 0xCC000008     4 # Auto Refresh
  40         mww 0xCC000008     4 # Auto Refresh
  41         mww 0xCC000008     4 # Auto Refresh
  42         mww 0xCC000008     4 # Auto Refresh
  43         mww 0xCC000008     4 # Auto Refresh
  44         mww 0xCC000008     1 # Mode Select CL3
  45
  46         #mww 0xc4000020  0xffffee # CFG0: remove expansion bus boot flash
  47         #mirror at 0x00000000
  48
  49         #big endian
  50         reg XSCALE_CTRL 0xF8
  51
  52         #
  53         # detect flash
  54         #
  55         flash probe 0
  56 }
  57
  58 [new_target_name] configure -work-area-virt 0 -work-area-phys 0x20010000 -work-area-size 0x8060 -work-area-backup 0
  59
  60
  61 flash bank cfi 0x50000000 0x400000 2 2 0
  62
  63 init
  64 reset init
  65 # set big endian mode
  66 reg XSCALE_CTRL 0xF8