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README.mpc832xemds
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Freescale MPC832XEMDS Board
-----------------------------------------
1. Board Switches and Jumpers
1.0 There are five Dual-In-Line Packages(DIP) Switches on MPC832XE SYS board
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" is logic 1.
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
SW3 is switch 18 as silk-screened onto the board.
SW4[8] is the bit labled 8 on Switch 4.
SW5[1:6] refers to bits labeled 1 through 6 in order on switch 5.
SW6[7:1] refers to bits labeled 7 through 1 in order on switch 6.
SW7[1:8]= 0000_0001 refers to bits labeled 1 through 6 is set as "On"
and bits labeled 8 is set as "Off".
1.1 For the MPC832XEMDS PROTO Board
First, make sure the board default setting is consistent with the document
shipped with your board. Then apply the following setting:
SW3[1-8]= 0000_1000 (core PLL setting, core enable)
SW4[1-8]= 0001_0010 (Flash boot on local bus, system PLL setting)
SW5[1-8]= 0010_0110 (Boot from high end)
SW6[1-8]= 0011_0100 (Flash boot on 16 bit local bus)
SW7[1-8]= 1000_0011 (QE PLL setting)
ENET3/4 MII mode settings:
J1 1-2 (ETH3_TXER)
J2 2-3 (MII mode)
J3 2-3 (MII mode)
J4 2-3 (ADSL clockOscillator)
J5 1-2 (ETH4_TXER)
J6 2-3 (ClockOscillator)
JP1 removed (don't force PORESET)
JP2 mounted (ETH4/2 MII)
JP3 mounted (ETH3 MII)
JP4 mounted (HRCW from BCSR)
ENET3/4 RMII mode settings:
J1 1-2 (ETH3_TXER)
J2 1-2 (RMII mode)
J3 1-2 (RMII mode)
J4 2-3 (ADSL clockOscillator)
J5 1-2 (ETH4_TXER)
J6 2-3 (ClockOscillator)
JP1 removed (don't force PORESET)
JP2 removed (ETH4/2 RMII)
JP3 removed (ETH3 RMII)
JP4 removed (HRCW from FLASH)
on board Oscillator: 66M
2. Memory Map
2.1 The memory map should look pretty much like this:
0x0000_0000 0x7fff_ffff DDR 2G
0x8000_0000 0x8fff_ffff PCI MEM prefetch 256M
0x9000_0000 0x9fff_ffff PCI MEM non-prefetch 256M
0xc000_0000 0xdfff_ffff Empty 512M
0xe000_0000 0xe01f_ffff Int Mem Reg Space 2M
0xe020_0000 0xe02f_ffff Empty 1M
0xe030_0000 0xe03f_ffff PCI IO 1M
0xe040_0000 0xefff_ffff Empty 252M
0xf400_0000 0xf7ff_ffff Empty 64M
0xf800_0000 0xf800_7fff BCSR on CS1 32K
0xf800_8000 0xf800_ffff PIB CS2 32K
0xf801_0000 0xf801_7fff PIB CS3 32K
0xfe00_0000 0xfeff_ffff FLASH on CS0 16M
3. Definitions
3.1 Explanation of NEW definitions in:
include/configs/MPC832XEPB.h
CONFIG_MPC83xx MPC83xx family for MPC8349, MPC8360 and MPC832x
CONFIG_MPC832x MPC832x specific
CONFIG_MPC832XEMDS MPC832XEMDS board specific
4. Compilation
Assuming you're using BASH shell:
export CROSS_COMPILE=your-cross-compile-prefix
cd u-boot
make distclean
make MPC832XEMDS_config
make
MPC832x support PCI 33MHz and PCI 66MHz, to make u-boot support PCI:
1)Make sure the DIP SW support PCI mode as described in Section 1.1.
2)To Make U-Boot image support PCI 33MHz, use
Make MPC832XEMDS_HOST_33_config
3)To Make U-Boot image support PCI 66MHz, use
Make MPC832XEMDS_HOST_66M_config
5. Downloading and Flashing Images
5.0 Download over network:
tftp 10000 u-boot.bin
5.1 Reflash U-boot Image using U-boot
tftp 20000 u-boot.bin
protect off fe000000 fe0fffff
erase fe000000 fe0fffff
cp.b 20000 fe000000 xxxx
You have to supply the correct byte count with 'xxxx' from the TFTP result log.
Maybe 3ffff will work too, that corresponds to the erased sectors.
6. Notes
1) The console baudrate for MPC832XEMDS is 115200bps.