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-Overview
---------
-The MPC8544DS system is similar to the 85xx CDS systems such
-as the MPC8548CDS due to the similar E500 core.  However, it
-is placed on the same board as the 8641 HPCN system.
-
-
-Flash Banks
------------
-Like the 85xx CDS systems, the 8544 DS board has two flash banks.
-They are both present on boot, but there locations can be swapped
-using the dip-switch SW10, bit 2.
-
-However, unlike the CDS systems, but similar to the 8641 HPCN
-board, a runtime reset through the FPGA can also affect a swap
-on the flash bank mappings for the next reset cycle.
-
-Irrespective of the switch SW10[2], booting is always from the
-boot bank at 0xfff8_0000.
-
-
-Memory Map
-----------
-
-0xff80_0000 - 0xffbf_ffff	Alternate bank		4MB
-0xffc0_0000 - 0xffff_ffff	Boot bank		4MB
-
-0xffb8_0000			Alternate image start	512KB
-0xfff8_0000			Boot image start	512KB
-
-
-Flashing Images
----------------
-
-For example, to place a new image in the alternate flash bank
-and then reset with that new image temporarily, use this:
-
-    tftp 1000000 u-boot.bin.8544ds
-    erase ffb80000 ffbfffff
-    cp.b 1000000 ffb80000 80000
-    pixis_reset altbank
-
-
-To overwrite the image in the boot flash bank:
-
-    tftp 1000000 u-boot.bin.8544ds
-    protect off all
-    erase fff80000 ffffffff
-    cp.b 1000000 fff80000 80000
-
-Other example U-Boot image and flash manipulations examples
-can be found in the README.mpc85xxcds file as well.
-
-
-The pixis_reset command
------------------------
-A new command, "pixis_reset", is introduced to reset mpc8641hpcn board
-using the FPGA sequencer.  When the board restarts, it has the option
-of using either the current or alternate flash bank as the boot
-image, with or without the watchdog timer enabled, and finally with
-or without frequency changes.
-
-Usage is;
-
-	pixis_reset
-	pixis_reset altbank
-	pixis_reset altbank wd
-	pixis_reset altbank cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>
-	pixis_reset cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>
-
-Examples;
-
-	/* reset to current bank, like "reset" command */
-	pixis_reset
-
-	/* reset board but use the to alternate flash bank */
-	pixis_reset altbank
-
-	/* reset board, use alternate flash bank with watchdog timer enabled*/
-	pixis_reset altbank wd
-
-	/* reset board to alternate bank with frequency changed.
-	 * 40 is SYSCLK, 2.5 is COREPLL ratio, 10 is MPXPLL ratio
-	 */
-	pixis-reset altbank cf 40 2.5 10
-
-Valid clock choices are in the 8641 Reference Manuals.
-
-
-Using the Device Tree Source File
----------------------------------
-To create the DTB (Device Tree Binary) image file,
-use a command similar to this:
-
-    dtc -b 0 -f -I dts -O dtb mpc8544ds.dts > mpc8544ds.dtb
-
-Likely, that .dts file will come from here;
-
-    linux-2.6/arch/powerpc/boot/dts/mpc8544ds.dts
-
-After placing the DTB file in your TFTP disk area,
-you can download that dtb file using a command like:
-
-    tftp 900000 mpc8544ds.dtb
-
-Burn it to flash if you want.
-
-
-Booting Linux
--------------
-
-Place a linux uImage in the TFTP disk area too.
-
-    tftp 1000000 uImage.8544
-    tftp 900000 mpc8544ds.dtb
-    bootm 1000000 - 900000
-
-Watch your ethact, netdev and bootargs U-Boot environment variables.
-You may want to do something like this too:
-
-    setenv ethact eTSEC3
-    setenv netdev eth1