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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 labled 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
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/ppc/configs/mpc8540_ads_defconfig
arch/ppc/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, IBM 440, etc)
CONFIG_E500 BOOKE e500 family(Motorola)
CONFIG_MPC85xx MPC8540,MPC8560 and their derivatives
CONFIG_MPC8540 MPC8540 specific
CONFIG_MPC8560 MPC8560 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_DDR_DLL DLL fix on some ADS boards needed for more
stability.
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
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