Subversion Repositories openrisc_2011-10-31

set $IPSBAR = 0x40000000

set $DCR    = $IPSBAR + 0x000040

set $DACR0  = $IPSBAR + 0x000048

set $DMR0   = $IPSBAR + 0x00004C

set $CSAR0  = $IPSBAR + 0x000080

set $CSMR0  = $IPSBAR + 0x000084

set $CSCR0  = $IPSBAR + 0x00008A

set $PAR_SDRAM = $IPSBAR + 0x100046

set $PAR_AD    = $IPSBAR + 0x100040

set $WCR    = $IPSBAR + 0x140000

define delay

  set $delay = 0

  while ($delay < 20000)

    set $delay += 1

  end

end

define delay_memsync

  set $delay = 0

  while ($delay < 10000)

    set $delay += 1

  end

end

define setup-cs

  # 2MB FLASH on CS0 at 0x80000000

  set *(unsigned short *)$CSAR0 = 0x00008000

  set *(unsigned long  *)$CSMR0 = 0x001F0101

  set *(unsigned short *)$CSCR0 = 0x00001980

end

define setup-sdram

  # Set PAR_SDRAM to allow SDRAM signals to be enable

  set *(unsigned char *)$PAR_SDRAM = 0x3F

  # Set PAR_AD to allow 32-bit SDRAM if the external boot device is 16-bit

  set *(unsigned char *)$PAR_AD = 0xE1

  # SDRAM

  set *(unsigned short *)$DCR   = 0x0446

  set *(unsigned long *)$DACR0  = 0x00001300

  set *(unsigned long *)$DMR0   = 0x00FC0001

  # Set IP in DACR and init precharge.

  set *(unsigned long *)$DACR0 |= 0x00000008

  set *(0x00000000)             = 0xAA55AA55

  delay

  # Set RE in DACR

  set *(unsigned long *)$DACR0 |= 0x00008000

  # Issue IMRS

  set *(unsigned long *)$DACR0 |= 0x00000040

  set *(0x00000400)             = 0xAA55AA55

  delay

end

define setup-other

  # Turn Off WCR

  set *(unsigned char *)$WCR = 0x00

end

define setup-and-load

  bdm-reset

  # Set VBR to the vector table.

  set $vbr = 0x00000000

  # Set internal SRAM to start at 0x20000000

  set $rambar = 0x20000001

  setup-other

  setup-cs

  setup-sdram

end

define debug-sramtest

  set $srambase = 0x20000000

  set $sramsize = 0x00010000

  set $j = 0

  printf "Testing SRAM : 0x%08X - 0x%08X\n", $srambase, ($srambase + $sramsize)

  set $i = $srambase

  while $i < ($srambase + $sramsize)

    set *(unsigned long *)($i) = 0xAA55AA55

    delay_memsync

    if 0xAA55AA55 != *(unsigned long *)$i

      printf "  0x%08X = FAIL\n", $i

    else

      printf "  0x%08X = OK", $i

      if $j % 4 == 3

        printf "\n"

      end

      set $j = $j + 1

    end

    set $i = $i + 0x400

  end

en

define debug-ramtest

  set $sdrambase = 0x00000000

  set $sdramsize = 0x01000000

  set $j = 0

  printf "Testing SDRAM : 0x%08X - 0x%08X\n", $sdrambase, ($sdrambase + $sdramsize)

  set $i = $sdrambase

  while $i < ($sdrambase + $sdramsize)

    set *(unsigned long *)($i) = 0xAA55AA55

    delay_memsync

    if 0xAA55AA55 != *(unsigned long *)$i

      printf "  0x%08X = FAIL\n", $i

    else

      printf "  0x%08X = OK", $i

      if $j % 4 == 3

        printf "\n"

      end

      set $j = $j + 1

    end

    set $i = $i + 0x10000

  end

  printf "\n"

end

define execute

  set $pc = *(long *)0x00000004

  tbreak main

  tk gdbtk_update

end

define debug-printexception

  printf "vector: %d", *(unsigned short *)$sp >> 2 &0x1F

  printf "old pc: 0x%08x", *(unsigned long *)($sp + 4)

  printf "old sr: 0x%02x", *(unsigned short *)($sp + 2)

end