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+Overview
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+--------
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+MPC8569MDS is composed of two boards - PB (Processor Board) and PIB (Platform
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+I/O Board). The mpc8569 PowerTM processor is mounted on PB board.
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+
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+Building U-boot
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+-----------
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+ make MPC8569MDS_config
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+ make
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+
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+Memory Map
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+----------
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+0x0000_0000 0x7fff_ffff DDR 2G
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+0xa000_0000 0xbfff_ffff PCIe MEM 512MB
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+0xe000_0000 0xe00f_ffff CCSRBAR 1M
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+0xe280_0000 0xe2ff_ffff PCIe I/O 8M
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+0xc000_0000 0xdfff_ffff SRIO 512MB
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+0xf000_0000 0xf3ff_ffff SDRAM 64MB
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+0xf800_0000 0xf800_7fff BCSR 32KB
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+0xf800_8000 0xf800_ffff PIB (CS4) 32KB
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+0xf801_0000 0xf801_7fff PIB (CS5) 32KB
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+0xfe00_0000 0xffff_ffff Flash 32MB
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+
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+
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+Flashing u-boot Images
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+---------------
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+
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+Use the following commands to program u-boot image into flash:
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+
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+ => tftp 1000000 u-boot.bin
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+ => protect off all
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+ => erase fff80000 ffffffff
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+ => cp.b 1000000 fff80000 80000
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+
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+
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+Setting the correct MAC addresses
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+-----------------------
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+The command - "mac", is introduced to set on-board system EEPROM in the format
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+defined in board/freescale/common/sys_eeprom.c. we must set all 8 MAC
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+addresses for the MPC8569MDS's 8 Ethernet ports and save it by "mac save" when
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+we first get the board. The commands are as follows:
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+ => mac i NXID /* Set NXID to this EEPROM */
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+ => mac e 01 /* Set Errata, this value is not defined by hardware
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+ designer, we can set whatever we want */
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+ => mac n a0 /* Set Serial Number. This is not defined by hardware
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+ designer, we can set whatever we want */
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+ => mac date 090512080000 /* Set the date in YYMMDDhhmmss format */
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+
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+ => mac p 8 /* Set the number of mac ports, it should be 8 */
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+ => mac 0 xx:xx:xx:xx:xx:xx /* xx:xx:xx:xx:xx:xx should be the real mac
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+ address, you can refer to the value on
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+ the sticker of the rear side of the board
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+ */
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+ .....
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+ => mac 7 xx:xx:xx:xx:xx:xx
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+ => mac read
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+ => mac save
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+
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+After resetting the board, the ethxaddrs will be filled with the mac addresses
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+if such environment variables are blank(never been set before). If the ethxaddr
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+has been set but we want to update it, we can use the following commands:
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+ => setenv ethxaddr /* x = "none",1,2,3,4,5,6,7 */
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+ => save
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+ => reset
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+
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+
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+Programming the ucode to flash
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+---------------------------------
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+MPC8569 doesn't have ROM in QE, so we must upload the microcode(ucode) to QE's
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+IRAM so that the QE can work. The ucode binary can be downloaded from
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+http://opensource.freescale.com/firmware/, and it must be programmed to
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+the address 0xfff0000 in the flash. Otherwise, the QE can't work and uboot
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+hangs at "Net:"
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+
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+
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+Please note the above two steps(setting mac addresses and programming ucode) are
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+very important to get the board booting up and working properly.
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+
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Haiying Wang