tcl/board/at91rm9200-dk.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 #
   4 # This is for the "at91rm9200-DK" (not the EK) eval board.
   5 #
   6 # The two are probably very simular.... I have DK...
   7 #
   8 # It has atmel at91rm9200 chip.
   9 source [find target/at91rm9200.cfg]
  10
  11 reset_config trst_and_srst
  12
  13 $_TARGETNAME configure -event gdb-attach { reset init }
  14 $_TARGETNAME configure -event reset-init { at91rm9200_dk_init }
  15
  16 #flash bank <name> <driver> <base> <size> <chip_width> <bus_width> <target>
  17 set _FLASHNAME $_CHIPNAME.flash
  18 flash bank $_FLASHNAME cfi 0x10000000 0x00200000 2 2 $_TARGETNAME
  19
  20
  21 proc at91rm9200_dk_init { } {
  22     # Try to run at 1khz... Yea, that slow!
  23     # Chip is really running @ 32khz
  24     adapter speed 8
  25
  26     mww 0xfffffc64 0xffffffff
  27     ##  disable all clocks but system clock
  28     mww 0xfffffc04 0xfffffffe
  29     ##  disable all clocks to pioa and piob
  30     mww 0xfffffc14 0xffffffc3
  31     ##  master clock = slow cpu = slow
  32     ##  (means the CPU is running at 32khz!)
  33     mww 0xfffffc30 0
  34     ##  main osc enable
  35     mww 0xfffffc20 0x0000ff01
  36     ##  program pllA
  37     mww 0xfffffc28 0x20263e04
  38     ##  program pllB
  39     mww 0xfffffc2c 0x10483e0e
  40     ##  let pll settle... sleep 100msec
  41     sleep 100
  42     ##  switch to fast clock
  43     mww 0xfffffc30 0x202
  44     ## Sleep some - (go read)
  45     sleep 100
  46
  47     #========================================
  48     # CPU now runs at 180mhz
  49     # SYS runs at 60mhz.
  50     adapter speed 40000
  51     #========================================
  52
  53
  54     ##  set memc for all memories
  55     mww 0xffffff60 0x02
  56     ##  program smc controller
  57     mww 0xffffff70 0x3284
  58     ##  init sdram
  59     mww 0xffffff98 0x7fffffd0
  60     ##  all banks precharge
  61     mww 0xffffff80 0x02
  62     ##  touch sdram chip to make it work
  63     mww 0x20000000 0
  64     ##  sdram controller mode register
  65     mww 0xffffff90 0x04
  66     mww 0x20000000 0
  67     mww 0x20000000 0
  68     mww 0x20000000 0
  69     mww 0x20000000 0
  70     mww 0x20000000 0
  71     mww 0x20000000 0
  72     mww 0x20000000 0
  73     mww 0x20000000 0
  74     ##  sdram controller mode register
  75     ##  Refresh, etc....
  76     mww 0xffffff90 0x03
  77     mww 0x20000080 0
  78     mww 0xffffff94 0x1f4
  79     mww 0x20000080 0
  80     mww 0xffffff90 0x10
  81     mww 0x20000000 0
  82     mww 0xffffff00 0x01
  83
  84 }