Freescale MPC837xE-RDB Board

  -----------------------------------------
  
  1.	Board Description
  
  	The MPC837xE-RDB are reference boards featuring the Freescale MPC8377E,
  	MPC8378E, and the MPC8379E processors in a Mini-ITX form factor.
  
  	The MPC837xE-RDB's have the following common features:
  
  	A) 256-MBytes on-board DDR2 unbuffered SDRAM
  	B) 8-Mbytes NOR Flash
  	C) 32-MBytes NAND Flash
  	D) 1 Secure Digital High Speed Card (SDHC) Interface
  	E) 1 Gigabit Ethernet
  	F) 5-port Ethernet switch (Vitesse 7385)
  	G) 1 32-bit, 3.3 V, PCI slot
  	H) 1 32-bit, 3.3 V, Mini-PCI slot
  	I) 4-port USB 2.0 Hub
  	J) 1-port OTG USB
  	K) 2 serial ports (top main console)
  	L) on board Oscillator: 66M
  
  	The MPC837xE-RDB's have the following differences:
  
  			    MPC8377E-RDB    MPC8378E-RDB    MPC8379E-RDB
  	SATA controllers	2		0		4
  	PCI-Express (mini)	2		2		0
  	SGMII Ports		0		2		0
  
  
  2.	Memory Map
  
  2.1.	The memory map should look pretty much like this:
  
  	Address Range			Device			Size		Port Size
  								(Bytes)		(Bits)
  	===========================	=================	=======		=========
  	0x0000_0000	0x0fff_ffff	DDR			256M		64
  	0x1000_0000	0x7fff_ffff	Empty			1.75G		-

  	0x8000_0000	0x8fff_ffff	PCI MEM prefetch	256M		32
  	0x9000_0000	0x9fff_ffff	PCI MEM non-prefetch	256M		32
  	0xe030_0000	0xe03f_ffff	PCI I/O space		1M		32

  	0xe000_0000	0xe00f_ffff	Int Mem Reg Space	1M		-

  	0xe060_0000	0xe060_7fff	NAND Flash		32K		8

  	0xfe00_0000	0xfe7f_ffff	NOR Flash on CS0	8M		16
  
  
  3. Definitions
  
  3.1 Explanation of NEW definitions in:
  
  	include/configs/MPC837XERDB.h

      CONFIG_MPC83xx	    MPC83xx family for both MPC8349 and MPC8360

      CONFIG_MPC837x	    MPC837x specific

      CONFIG_MPC837XERDB	    MPC837xE-RDB board specific

  
  
  4. Compilation
  
  	Assuming you're using BASH shell:
  
  		export CROSS_COMPILE=your-cross-compile-prefix
  		cd u-boot
  		make distclean
  		make MPC837XERDB_config
  		make
  
  
  5. Downloading and Flashing Images
  
  5.0 Download over serial line using Kermit:
  
  	loadb $loadaddr
  	[Drop to kermit:
  	    ^\c
  	    send <u-boot-bin-image>
  	    c
  	]
  
  
  	Or via tftp:
  
  	tftp $loadaddr u-boot.bin

  5.1 Reflash U-Boot Image using U-Boot

  
  	tftp $loadaddr u-boot.bin
  	protect off fe000000 fe0fffff
  	erase fe000000 fe0fffff
  	cp.b $loadaddr fe000000 $filesize
  
  
  6. Additional Notes:
  	1) The console is connected to the top RS-232 connector and the
  	   baudrate for MPC837XE-RDB is 115200bps.