Motorola MPC8540ADS and MPC8560ADS board

  Created 10/15/03 Xianghua Xiao
  Updated 13-July-2004 Jon Loeliger

  -----------------------------------------

  0. Toolchain

  
      The Binutils in current ELDK toolchain will not support MPC85xx

      chip.  You need to use binutils-2.14.tar.bz2 (or newer) from

      http://ftp.gnu.org/gnu/binutils.
  
      The 8540/8560 ADS code base is known to compile using:
  	gcc (GCC) 3.2.2 20030217 (Yellow Dog Linux 3.0 3.2.2-2a)

  1. SWITCH SETTINGS & JUMPERS

  1.0 Nomenclature
  
      For some reason, the HW designers describe the switch settings
      in terms of 0 and 1, and then map that to physical switches where
      the label "On" refers to logic 0 and "Off" (unlabeled) is logic 1.
      Luckily, we're SW types and virtual settings are handled daily.
  
      The switches for the Rev A board are numbered differently than
      for the Pilot board.  Oh yeah.
  
      Switch bits are numbered 1 through, like, 4 6 8 or 10, but the
      bits may contribute to signals that are numbered based at 0,
      and some of those signals may be high-bit-number-0 too.  Heed
      well the names and labels and do not get confused.
  
      "Off" == 1
      "On"  == 0
  
      SW18 is switch 18 as silk-screened onto the board.

      SW4[8] is the bit labeled 8 on Switch 4.

      SW2[1:6] refers to bits labeled 1 through 6 in order on switch 2
      SW3[7:1] refers to bits labeled 7 through 1 in order on switch 3
  
  1.1 For the MPC85xxADS Pilot Board
  
      First, make sure the board default setting is consistent with the document

      shipped with your board. Then apply the following changes:

      SW3[1-6]="all OFF"	(boot from 32bit flash, no boot sequence is used)

      SW10[2-6]="all OFF" (turn on CPM SCC for serial port,works for 8540/8560)

      SW11[2]='OFF for 8560, ON for 8540' (toggle 8540.8560 mode)

      SW11[7]='ON' (rev2), 'OFF' (rev1)

      SW4[7-8]="OFF OFF" (enable serial ports,I'm using the top serial connector)
      SW22[1-4]="OFF OFF ON OFF"
      SW5[1-10[="ON ON OFF OFF OFF OFF OFF OFF OFF OFF"
      J1 = "Enable Prog" (Make sure your flash is programmable for development)

      If you want to test PCI functionality with a 33Mhz PCI card, you will

      have to change the system clock from the default 66Mhz to 33Mhz by
      setting SW15[1]="OFF" and SW17[8]="OFF". After that you may also need
      double your platform clock(SW6) because the system clock is now only

      half of its original value. For example, if at 66MHz your system
      clock showed SW6[0:1] = 01, then at 33MHz SW6[0:1] it should be 10.

  	SW17[8] ------+	   SW6
  	SW15[1] ----+ |	  [0:1]
  		    V V	   V V
  	33MHz	    1 1	   1 0
  	66MHz	    0 0	   0 1
  
      Hmmm... That SW6 setting description is incomplete but it works.
  
  
  1.3 For the MPC85xxADS Rev A Board
  
      As shipped, the board should be a 33MHz PCI bus with a CPU Clock
      rate of 825 +/- fuzz:
  
  	Clocks: CPU: 825 MHz, CCB: 330 MHz, DDR: 165 MHz, LBC:	82 MHz
  
      For 33MHz PCI, the switch settings should be like this:
  
  	SW18[7:1] = 0100001 = M==33 =>	  33MHz
  	SW18[8]	  =	  1	    => PWD Divider == 16
  	SW16[1:2] =	 11	    => N == 16 as PWD==1
  
      Use the magical formula:
  	Fout (MHz) = 16 * M / N = 16 * 33 / 16 = 33 MHz
  
  	SW7[1:4]  =    1010 = 10    => 10 x 33	 = 330	CCB Sysclk
  	SW7[5:6]  =	 01	    => 5:2 x 330 = 825	Core clock
  
  
      For 66MHz PCI, the switch settings should be like this:
  
  	SW18[7:1] = 0100001 = M==33 =>	  33MHz
  	SW18[8]	  =	  0	    => PWD Divider == 1
  	SW16[1:2] =	 01	    => N == 8 as PWD == 0
  
      Use the magical formula:
  	Fout (MHz) = 16 * M / N = 16 * 33 / 8 = 66 MHz
  
  	SW7[1:4]  =    0101 =  5    => 5 x 66	 = 330	CCB Sysclk
  	SW7[5:6]  =	 01	    => 5:2 x 330 = 825	Core clock

      In order to use PCI-X (only in the first PCI slot.  The one with
      the RIO connector), you need to set SW1[4] (config) to 1 (off).
      Also, configure the board to run PCI at 66 MHz.

  
  2. MEMORY MAP TO WORK WITH LINUX KERNEL

  
  2.1. For the initial bringup, we adopted a consistent memory scheme
       between u-boot and linux kernel, you can customize it based on your
       system requirements:

       0x0000_0000     0x7fff_ffff     DDR		     2G
       0x8000_0000     0x9fff_ffff     PCI MEM		     512M
       0xc000_0000     0xdfff_ffff     Rapid IO		     512M
       0xe000_0000     0xe00f_ffff     CCSR		     1M
       0xe200_0000     0xe2ff_ffff     PCI IO		     16M
       0xf000_0000     0xf7ff_ffff     SDRAM		     128M
       0xf800_0000     0xf80f_ffff     BCSR		     1M
       0xff00_0000     0xffff_ffff     FLASH (boot bank)	     16M

  
  2.2 We are submitting Linux kernel patches for MPC8540 and MPC8560. You
      can download them from linuxppc-2.4 public source. Please make sure the
      kernel's ppcboot.h is consistent with U-Boot's u-boot.h. You can use two
      default configuration files as your starting points to configure the
      kernel:

  	arch/powerpc/configs/mpc8540_ads_defconfig
  	arch/powerpc/configs/mpc8560_ads_defconfig

  
  3. DEFINITIONS AND COMPILATION

  3.1 Explanation on NEW definitions in:
  	include/configs/MPC8540ADS.h
  	include/configs/MPC8560ADS.h

      CONFIG_BOOKE	    BOOKE(e.g. Motorola MPC85xx, AMCC 440, etc)

      CONFIG_E500		    BOOKE e500 family(Motorola)
      CONFIG_MPC85xx	    MPC8540,MPC8560 and their derivatives
      CONFIG_MPC8540	    MPC8540 specific

      CONFIG_MPC8540ADS	    MPC8540ADS board specific
      CONFIG_MPC8560ADS	    MPC8560ADS board specific
      CONFIG_TSEC_ENET	    Use on-chip 10/100/1000 ethernet for networking
      CONFIG_SPD_EEPROM	    Use SPD EEPROM for DDR auto configuration, you can
  			    also manual config the DDR after undef this

  			    definition.

      CONFIG_DDR_ECC	    only for ECC DDR module

      CONFIG_SYS_FSL_ERRATUM_DDR_MSYNC_IN	    DLL fix on some ADS boards needed
  			    for more stability.

      CONFIG_HAS_FEC	    If an FEC is on chip, set to 1, else 0.

  
  Other than the above definitions, the rest in the config files are
  straightforward.

  3.2 Compilation

      Assuming you're using BASH shell:
  
  	export CROSS_COMPILE=your-cross-compile-prefix
  	cd u-boot
  	make distclean
  	make MPC8560ADS_config (or make MPC8540ADS_config)
  	make

  4.  Notes:

  4.1 When connecting with kermit, the following commands must be present.in

      your .kermrc file. These are especially important when booting as
      MPC8560, as the serial console will not work without them:
  
  	set speed 115200
  	set carrier-watch off
  	set handshake none
  	set flow-control none
  	robust
  
  
  4.2 Sometimes after U-Boot is up, the 'tftp' won't work well with TSEC
      ethernet. If that happens, you can try the following steps to make
      network work:
  
  	MPC8560ADS>tftp 1000000 pImage
  	(if it hangs, use Ctrl-C to quit)
  	MPC8560ADS>nm fdf24524
  	>0
  	>1
  	>. (to quit this memory operation)
  	MPC8560ADS>tftp 1000000 pImage
  
  4.3 If you're one of the early developers using the Rev1 8540/8560 chips,
      please use U-Boot 1.0.0, as the newer silicon will only support Rev2
      and future revisions of 8540/8560.

  
  4.4 Reflash U-boot Image using U-boot

      tftp 10000 u-boot.bin
      protect off fff80000 ffffffff
      erase fff80000 ffffffff
      cp.b 10000 fff80000 80000

  4.5 Reflash U-Boot with a BDI-2000

      BDI> erase 0xFFF80000 0x4000 0x20

      BDI> prog 0xfff80000 u-boot.bin.8560ads
      BDI> verify

  5. Screen dump MPC8540ADS board

  U-Boot 1.1.2(pq3-20040707-0) (Jul  6 2004 - 17:34:25)
  
  Freescale PowerPC
      Core: E500, Version: 2.0, (0x80200020)
      System: 8540, Version: 2.0, (0x80300020)
      Clocks: CPU: 825 MHz, CCB: 330 MHz, DDR: 165 MHz, LBC:  82 MHz
      L1 D-cache 32KB, L1 I-cache 32KB enabled.
  Board: ADS
      PCI1: 32 bit, 66 MHz (compiled)

  I2C:   ready

  DRAM:  Initializing
      SDRAM: 64 MB
      DDR: 256 MB

  FLASH: 16 MB
  L2 cache enabled: 256KB
  *** Warning - bad CRC, using default environment
  
  In:    serial
  Out:   serial
  Err:   serial

  Net:   MOTO ENET0: PHY is Marvell 88E1011S (1410c62)
  MOTO ENET1: PHY is Marvell 88E1011S (1410c62)
  MOTO ENET2: PHY is Davicom DM9161E (181b881)
  MOTO ENET0, MOTO ENET1, MOTO ENET2

  Hit any key to stop autoboot:  0

  =>
  => fli

  
  Bank # 1: Intel 28F640J3A (64 Mbit, 64 x 128K)
    Size: 16 MB in 64 Sectors
    Sector Start Addresses:

      FF000000	  FF040000	FF080000      FF0C0000	    FF100000
      FF140000	  FF180000	FF1C0000      FF200000	    FF240000
      FF280000	  FF2C0000	FF300000      FF340000	    FF380000
      FF3C0000	  FF400000	FF440000      FF480000	    FF4C0000
      FF500000	  FF540000	FF580000      FF5C0000	    FF600000
      FF640000	  FF680000	FF6C0000      FF700000	    FF740000
      FF780000	  FF7C0000	FF800000      FF840000	    FF880000
      FF8C0000	  FF900000	FF940000      FF980000	    FF9C0000
      FFA00000	  FFA40000	FFA80000      FFAC0000	    FFB00000
      FFB40000	  FFB80000	FFBC0000      FFC00000	    FFC40000
      FFC80000	  FFCC0000	FFD00000      FFD40000	    FFD80000
      FFDC0000	  FFE00000	FFE40000      FFE80000	    FFEC0000
      FFF00000	  FFF40000	FFF80000 (RO) FFFC0000 (RO)
  
  => bdinfo

  memstart    = 0x00000000

  memsize	    = 0x10000000

  flashstart  = 0xFF000000
  flashsize   = 0x01000000
  flashoffset = 0x00000000
  sramstart   = 0x00000000
  sramsize    = 0x00000000

  immr_base   = 0xE0000000
  bootflags   = 0xE4013F80
  intfreq	    =	 825 MHz
  busfreq	    =	 330 MHz
  ethaddr	    = 00:E0:0C:00:00:FD
  eth1addr    = 00:E0:0C:00:01:FD
  eth2addr    = 00:E0:0C:00:02:FD
  IP addr	    = 192.168.1.253

  baudrate    = 115200 bps

  => printenv
  bootcmd=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off console=$consoledev,$baudrate $othbootargs;tftp $loadaddr $bootfile;bootm $loadaddr
  ramboot=setenv bootargs root=/dev/ram rw console=$consoledev,$baudrate $othbootargs;tftp $ramdiskaddr $ramdiskfile;tftp $loadaddr $bootfile;bootm $loadaddr $ramdiskaddr
  nfsboot=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off console=$consoledev,$baudrate $othbootargs;tftp $loadaddr $bootfile;bootm $loadaddr
  bootdelay=10

  baudrate=115200
  loads_echo=1

  ethaddr=00:E0:0C:00:00:FD
  eth1addr=00:E0:0C:00:01:FD
  eth2addr=00:E0:0C:00:02:FD
  ipaddr=192.168.1.253
  serverip=192.168.1.1
  rootpath=/nfsroot
  gatewayip=192.168.1.1
  netmask=255.255.255.0
  hostname=unknown
  bootfile=your.uImage
  loadaddr=200000
  netdev=eth0
  consoledev=ttyS0
  ramdiskaddr=400000
  ramdiskfile=your.ramdisk.u-boot

  stdin=serial
  stdout=serial
  stderr=serial

  ethact=MOTO ENET0

  Environment size: 1020/8188 bytes