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- #-------------------------------------------------------------------------
- # Mini2440 Samsung s3c2440A Processor with 64MB DRAM, 64MB NAND, 2 MB N0R
- # NOTE: Configured for NAND boot (switch S2 in NANDBOOT)
- # 64 MB NAND (Samsung K9D1208V0M)
- # B Findlay 08/09
- #
- # ----------- Important notes to help you on your way ----------
- # README:
- # NOR/NAND Boot Switch - I have not read the vivi source, but from
- # what I could tell from reading the registers it appears that vivi
- # loads itself into DRAM and then flips NFCONT (0x4E000004) bits
- # Mode (bit 0 = 1), and REG_nCE (bit 1 = 0) which maps the NAND
- # FLASH at the bottom 64MB of memory. This essentially takes the
- # NOR Flash out of the circuit so you can't trash it.
- #
- # I adapted the samsung_s3c2440.cfg file which is why I did not
- # include "source [find target/samsung_s3c2440.cfg]". I believe
- # the -work-area-phys 0x200000 is incorrect, but also had to pad
- # some additional resets. I didn't modify it as if it is working
- # for someone, the work-area-phys is not used by most.
- #
- # JTAG ADAPTER SPECIFIC
- # IMPORTANT! Any JTAG device that uses ADAPTIVE CLOCKING will likely
- # FAIL as the pin RTCK on the mini2440 10 pin JTAG Conn doesn't exist.
- # This is Pin 11 (RTCK) on 20 pin JTAG connector. Therefore it is
- # necessary to FORCE setting the clock. Normally this should be configured
- # in the openocd.cfg file, but was placed here as it can be a tough
- # problem to figure out. THIS MAY NOT FIX YOUR PROBLEM.. I modified
- # the openOCD driver jlink.c and posted it here. It may eventually end
- # up changed in openOCD, but its a hack in the driver and really should
- # be in the jtag layer (core.c me thinks), but haven't done it yet. My
- # hack for jlink.c may be found here.
- #
- # http://forum.sparkfun.com/viewtopic.php?t=16763&sid=946e65abdd3bab39cc7d90dee33ff135
- #
- # Note: Also if you have a USB JTAG, you will need the USB library installed
- # on your system "libusb-dev" or the make of openocd will fail. I *think*
- # it's apt-get install libusb-dev. When I made my config I only included
- # --enable-jlink and --enable-usbdevs
- #
- # I HAVE NOT Tested this throughly, so there could still be problems.
- # But it should get you way ahead of the game from where I started.
- # If you find problems (and fixes) please post them to
- # openocd-development@lists.berlios.de and join the developers and
- # check in fixes to this and anything else you find. I do not
- # provide support, but if you ask really nice and I see anything
- # obvious I will tell you.. mostly just dig, fix, and submit to openocd.
- #
- # best! brfindla@yahoo.com Nashua, NH USA
- #
- # Recommended resources:
- # - first two are the best Mini2440 resources anywhere
- # - maintained by buserror... thanks guy!
- #
- # http://bliterness.blogspot.com/
- # http://code.google.com/p/mini2440/
- #
- # others....
- #
- # http://forum.sparkfun.com/viewforum.php?f=18
- # http://labs.kernelconcepts.de/Publications/Micro24401/
- # http://www.friendlyarm.net/home
- # http://www.amontec.com/jtag_pinout.shtml
- #
- #-------------------------------------------------------------------------
- #
- #
- # Your openocd.cfg file should contain:
- # source [find interface/<yourjtag>.cfg]
- # source [find board/mini2440.cfg]
- #
- #
- #
-
- # FIXME use some standard target config, maybe create one from this
- #
- # source [find target/...cfg]
-
- #-------------------------------------------------------------------------
- # Target configuration for the Samsung 2440 system on chip
- # Tested on a S3C2440 Evaluation board by keesj
- # Processor : ARM920Tid(wb) rev 0 (v4l)
- # Info: JTAG tap: s3c2440.cpu tap/device found: 0x0032409d
- # (Manufacturer: 0x04e, Part: 0x0324, Version: 0x0)
- #-------------------------------------------------------------------------
-
- if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
- } else {
- set _CHIPNAME s3c2440
- }
-
- if { [info exists ENDIAN] } {
- set _ENDIAN $ENDIAN
- } else {
- # this defaults to a bigendian
- set _ENDIAN little
- }
-
- if { [info exists CPUTAPID ] } {
- set _CPUTAPID $CPUTAPID
- } else {
- # force an error till we get a good number
- set _CPUTAPID 0x0032409d
- }
-
- #jtag scan chain
- jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0x0f -expected-id $_CPUTAPID
-
- set _TARGETNAME $_CHIPNAME.cpu
- target create $_TARGETNAME arm920t -endian $_ENDIAN -chain-position $_TARGETNAME
- $_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 1
-
- #reset configuration
- jtag_nsrst_delay 100
- jtag_ntrst_delay 100
- reset_config trst_and_srst
-
- #-------------------------------------------------------------------------
- # JTAG ADAPTER SPECIFIC
- # IMPORTANT! See README at top of this file.
- #-------------------------------------------------------------------------
-
- adapter_khz 12000
- jtag interface
-
- #-------------------------------------------------------------------------
- # GDB Setup
- #-------------------------------------------------------------------------
-
- gdb_breakpoint_override hard
-
- #------------------------------------------------
- # ARM SPECIFIC
- #------------------------------------------------
-
- targets
- # arm7_9 dcc_downloads enable
- # arm7_9 fast_memory_access enable
-
-
- nand device s3c2440 0
-
- jtag_nsrst_delay 100
- jtag_ntrst_delay 100
- reset_config trst_and_srst
- init
-
- echo " "
- echo "-------------------------------------------"
- echo "--- login with - telnet localhost 4444 ---"
- echo "--- then type help_2440 ---"
- echo "-------------------------------------------"
- echo " "
-
-
-
- #------------------------------------------------
- # Processor Initialialization
- # Note: Processor writes can only occur when
- # the state is in SYSTEM. When you call init_2440
- # one of the first lines will tell you what state
- # you are in. If a linux image is booting
- # when you run this, it will not work
- # a vivi boot loader will run with this just
- # fine. The reg values were obtained by a combination
- # of figuring them out fromt the manual, and looking
- # at post vivi values with the debugger. Don't
- # place too much faith in them, but seem to work.
- #------------------------------------------------
-
- proc init_2440 { } {
-
- halt
- s3c2440.cpu curstate
-
- #-----------------------------------------------
- # Set Processor Clocks - mini2440 xtal=12mHz
- # we set main clock for 405mHZ
- # we set the USB Clock for 48mHz
- # OM2 OM3 pulled to ground so main clock and
- # usb clock are off 12mHz xtal
- #-----------------------------------------------
-
- mww phys 0x4C000014 0x00000005 # Clock Divider control Reg
- mww phys 0x4C000000 0xFFFFFFFF # LOCKTIME count register
- mww phys 0x4C000008 0x00038022 # UPPLCON USB clock config Reg
- mww phys 0x4C000004 0x0007F021 # MPPLCON Proc clock config Reg
-
- #-----------------------------------------------
- # Configure Memory controller
- # BWSCON configures all banks, NAND, NOR, DRAM
- # DRAM - 64MB - 32 bit bus, uses BANKCON6 BANKCON7
- #-----------------------------------------------
-
- mww phys 0x48000000 0x22111112 # BWSCON - Bank and Bus Width
- mww phys 0x48000010 0x00001112 # BANKCON4 - ?
- mww phys 0x4800001c 0x00018009 # BANKCON6 - DRAM
- mww phys 0x48000020 0x00018009 # BANKCON7 - DRAM
- mww phys 0x48000024 0x008E04EB # REFRESH - DRAM
- mww phys 0x48000028 0x000000B2 # BANKSIZE - DRAM
- mww phys 0x4800002C 0x00000030 # MRSRB6 - DRAM
- mww phys 0x48000030 0x00000030 # MRSRB7 - DRAM
-
- #-----------------------------------------------
- # Now port configuration for enables for memory
- # and other stuff.
- #-----------------------------------------------
-
- mww phys 0x56000000 0x007FFFFF # GPACON
-
- mww phys 0x56000010 0x00295559 # GPBCON
- mww phys 0x56000018 0x000003FF # GPBUP (PULLUP ENABLE)
- mww phys 0x56000014 0x000007C2 # GPBDAT
-
- mww phys 0x56000020 0xAAAAA6AA # GPCCON
- mww phys 0x56000028 0x0000FFFF # GPCUP
- mww phys 0x56000024 0x00000020 # GPCDAT
-
- mww phys 0x56000030 0xAAAAAAAA # GPDCON
- mww phys 0x56000038 0x0000FFFF # GPDUP
-
- mww phys 0x56000040 0xAAAAAAAA # GPECON
- mww phys 0x56000048 0x0000FFFF # GPEUP
-
- mww phys 0x56000050 0x00001555 # GPFCON
- mww phys 0x56000058 0x0000007F # GPFUP
- mww phys 0x56000054 0x00000000 # GPFDAT
-
- mww phys 0x56000060 0x00150114 # GPGCON
- mww phys 0x56000068 0x0000007F # GPGUP
-
- mww phys 0x56000070 0x0015AAAA # GPHCON
- mww phys 0x56000078 0x000003FF # GPGUP
-
- }
-
-
-
- proc flash_config { } {
-
- #-----------------------------------------
- # Finish Flash Configuration
- #-----------------------------------------
-
- halt
-
- #flash configuration (K9D1208V0M: 512Mbit, x8, 3.3V, Mode: Normal, 1st gen)
- nand probe 0
- nand list
- }
-
- proc flash_uboot { } {
-
- # flash the u-Boot binary and reboot into it
- init_2440
- flash_config
- nand erase 0 0x0 0x40000
- nand write 0 /tftpboot/u-boot-nand512.bin 0 oob_softecc_kw
- resume
- }
-
-
- proc load_uboot { } {
- echo " "
- echo " "
- echo "----------------------------------------------------------"
- echo "---- Load U-Boot into RAM and execute it. ---"
- echo "---- NOTE: loads, partially runs, and hangs ---"
- echo "---- U-Boot is fine, this image runs from vivi. ---"
- echo "---- I burned u-boot into NAND so I didn't finish ---"
- echo "---- debugging it. I am leaving this here as it is ---"
- echo "---- part of the way there if you want to fix it. ---"
- echo "---- ---"
- echo "---- mini2440 U-boot here: ---"
- echo "---- http://repo.or.cz/w/u-boot-openmoko/mini2440.git ---"
- echo "---- Also this: ---"
- echo "---- http://code.google.com/p/mini2440/wiki/MiniBringup --"
- echo "----------------------------------------------------------"
-
- init_2440
- echo "Loading /tftpboot/u-boot-nand512.bin"
- load_image /tftpboot/u-boot-nand512.bin 0x33f80000 bin
- echo "Verifying image...."
- verify_image /tftpboot/u-boot-nand512.bin 0x33f80000 bin
- echo "jumping to u-boot"
- #bp 0x33f80068 4 hw
- reg 0 0
- reg 1 0
- reg 2 0
- reg 3 0
- reg 4 0x33f80000
- resume 0x33f80000
- }
-
- # this may help a little bit debugging the load_uboot
- proc s {} {
- step
- reg
- arm disassemble 0x33F80068 0x10
- }
-
- proc help_2440 {} {
- echo " "
- echo " "
- echo "-----------------------------------------------------------"
- echo "---- The following mini2440 funcs are supported ----"
- echo "---- init_2440 - initialize clocks, DRAM, IO ----"
- echo "---- flash_config - configures nand flash ----"
- echo "---- load_uboot - loads uboot into ram ----"
- echo "---- flash_uboot - flashes uboot to nand (untested) ----"
- echo "---- help_2440 - this help display ----"
- echo "-----------------------------------------------------------"
- echo " "
- echo " "
- }
-
-
- #----------------------------------------------------------------------------
- #----------------------------------- END ------------------------------------
- #----------------------------------------------------------------------------
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