Merge with git://www.denx.de/git/u-boot.git

7 files changed, 659 insertions, 0 deletions

diff --git a/doc/README.Lite5200B_low_power b/doc/README.Lite5200B_low_power
new file mode 100644
index 0000000..5b04fbb
--- /dev/null
+++ b/doc/README.Lite5200B_low_power
@@ -0,0 +1,22 @@
+Lite5200B wakeup from low-power mode (CONFIG_LITE5200B_PM)
+----------------------------------------------------------
+
+Low-power mode as described in Lite5200B User's Manual, means that
+with support of MC68HLC908QT1 microcontroller (refered to as QT),
+everything but the SDRAM can be powered down. This brings
+maximum power saving, while one can still restore previous state
+quickly.
+
+Quick overview where U-Boot comes into the picture:
+- OS saves device states
+- OS saves wakeup handler address to physical 0x0, puts SDRAM into
+  self-refresh and signals to QT, it should power down the board
+- / board is sleeping here /
+- someone presses SW4 (connected to QT)
+- U-Boot checks PSC2_4 pin, if QT drives it down, then we woke up,
+  so get SDRAM out of self-refresh and transfer control to OS
+  wakeup handler
+- OS restores device states
+
+This was tested on Linux with USB and Ethernet in use. Adding
+support for other devices is an OS issue.
diff --git a/doc/README.NetConsole b/doc/README.NetConsole
index cc35a0a..fea8e33 100644
--- a/doc/README.NetConsole
+++ b/doc/README.NetConsole
@@ -38,6 +38,11 @@ The script expects exactly one argument, which is interpreted as  the
 target IP address (or host name, assuming DNS is working). The script
 can be interrupted by pressing ^T (CTRL-T).
 
+Be aware that in some distributives (Fedora Core 5 at least)
+usage of nc has been changed and -l and -p options are considered
+as mutually exclusive. If nc complains about options provided,
+you can just remove the -p option from the script.
+
 It turns out that 'netcat' cannot be used to listen to broadcast
 packets. We developed our own tool 'ncb' (see tools directory) that
 listens to broadcast packets on a given port and dumps them to the
diff --git a/doc/README.mpc7448hpc2 b/doc/README.mpc7448hpc2
new file mode 100644
index 0000000..8659e83
--- /dev/null
+++ b/doc/README.mpc7448hpc2
@@ -0,0 +1,184 @@
+Freescale MPC7448hpc2 (Taiga) board
+===================================
+
+Created 08/11/2006 Roy Zang
+--------------------------
+MPC7448hpc2 (Taiga) board is a high-performance PowerPC server reference
+design, which is optimized for high speed throughput between the processor and
+the memory, disk drive and Ethernet port subsystems.
+
+MPC7448hpc2(Taiga) is designed to the micro-ATX chassis, allowing it to be
+used in 1U or 2U rack-mount chassis¡¯, as well as in standard ATX/Micro-ATX
+chassis.
+
+Building U-Boot
+------------------
+The mpc7448hpc2 code base is known to compile using:
+	Binutils 2.15, Gcc 3.4.3, Glibc 2.3.3
+
+	$ make mpc7448hpc2_config
+	Configuring for mpc7448hpc2 board...
+
+	$ make
+
+Memory Map
+----------
+
+The memory map is setup for Linux to operate properly.
+
+The mapping is:
+
+	Range Start	Range End	Definition			Size
+
+	0x0000_0000	0x7fff_ffff	DDR				2G
+	0xe000_0000	0xe7ff_ffff	PCI Memory			128M
+	0xfa00_0000	0xfaff_ffff	PCI IO				16M
+	0xfb00_0000	0xfbff_ffff	PCI Config			16M
+	0xfc00_0000	0xfc0f_ffff	NVRAM/CADMUS			1M
+	0xfe00_0000	0xfeff_ffff	PromJet				16M
+	0xff00_0000	0xff80_0000	FLASH (boot flash)		8M
+	0xff80_0000	0xffff_ffff	FLASH (second half flash)	8M
+
+Using Flash
+-----------
+
+The MPC7448hpc2 board has two "banks" of flash, each 8MB in size
+(2^23 = 0x00800000).
+
+Note: the "bank" here refers to half of the flash. In fact, there is only one
+bank of flash, which is divided into low and high half. Each is controlled by
+the most significant bit of the address bus. The so called "bank" is only for
+convenience.
+
+There is a switch which allows the "bank" to be selected.  The switch
+settings for updating flash are given below.
+
+The u-boot commands for copying the boot-bank into the secondary bank are
+as follows:
+
+	erase ff800000 ff880000
+	cp.b ff000000 ff800000 80000
+
+U-boot commands for downloading an image via tftp and flashing
+it into the secondary bank:
+
+	tftp 10000 <u-boot.bin.image>
+	erase ff000000 ff080000
+	cp.b 10000 ff000000 80000
+
+After copying the image into the second bank of flash, be sure to toggle
+SW3[4] on board before resetting the board in order to set the
+secondary bank as the boot-bank.
+
+Board Switches
+----------------------
+
+Most switches on the board should not be changed.  The most frequent
+user-settable switches on the board are used to configure
+the flash banks and determining the PCI frequency.
+
+SW1[1-5]: Processor core voltage
+
+	12345		Core Voltage
+	-----
+	SW1=01111	1.000V.
+	SW1=01101	1.100V.
+	SW1=01011	1.200V.
+	SW1=01001	1.300V only for MPC7447A.
+
+
+SW2[1-6]: CPU core frequency
+
+		CPU Core Frequency (MHz)
+			Bus Frequency
+	123456		100	133	167	200	Ratio
+
+	------
+	SW2=101100	500	667	833	1000	5x
+	SW2=100100	550	733	917	1100	5.5x
+	SW2=110100	600	800	1000	1200	6x
+	SW2=010100	650	866	1083	1300	6.5x
+	SW2=001000	700	930	1167	1400	7x
+	SW2=000100	750	1000	1250	1500	7.5x
+	SW2=110000	800	1066	1333	1600	8x
+	SW2=011000	850	1333	1417	1700	8.5x only for MPC7447A
+	SW2=011110	900	1200	1500	1800	9x
+
+This table shows only a subset of available frequency options; see the CPU
+hardware specifications for more information.
+
+SW2[7-8]: Bus Protocol and CPU Reset Option
+
+	7
+	-
+	SW2=0		System bus uses MPX bus protocol
+	SW2=1		System bus uses 60x bus protocol
+
+	8
+	-
+	SW2=0		TSI108 can cause CPU reset
+	SW2=1		TSI108 can not cause CPU reset
+
+SW3[1-8] system options
+
+	123
+	---
+	SW3=xxx		Connected to GPIO[0:2] on TSI108
+
+	4
+	-
+	SW3=0		CPU boots from low half of flash
+	SW3=1		CPU boots from high half of flash
+
+	5
+	-
+	SW3=0		SATA and slot2 connected to PCI bus
+	SW3=1		Only slot1 connected to PCI bus
+
+	6
+	-
+	SW3=0		USB connected to PCI bus
+	SW3=1		USB disconnected from PCI bus
+
+	7
+	-
+	SW3=0		Flash is write protected
+	SW3=1		Flash is NOT write protected
+
+	8
+	-
+	SW3=0		CPU will boot from flash
+	SW3=1		CPU will boot from PromJet
+
+SW4[1-3]: System bus frequency
+
+			Bus Frequency (MHz)
+	---
+	SW4=010			183
+	SW4=011			100
+	SW4=100			133
+	SW4=101			166 only for MPC7447A
+	SW4=110			200 only for MPC7448
+	others			reserved
+
+SW4[4-6]: DDR2 SDRAM frequency
+
+			Bus Frequency (MHz)
+	---
+	SW4=000		external clock
+	SW4=011		system clock
+	SW4=100		133
+	SW4=101		166
+	SW4=110		200
+	others		reserved
+
+SW4[7-8]: PCI/PCI-X frequency control
+	7
+	-
+	SW4=0		PCI/PCI-X bus operates normally
+	SW4=1		PCI bus forced to PCI-33 mode
+
+	8
+	-
+	SW4=0		PCI-X mode at 133 MHz allowed
+	SW4=1		PCI-X mode limited to 100 MHz
diff --git a/doc/README.mpc832xemds b/doc/README.mpc832xemds
new file mode 100644
index 0000000..b63cc79
--- /dev/null
+++ b/doc/README.mpc832xemds
@@ -0,0 +1,128 @@
+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.
diff --git a/doc/README.mpc8349itx b/doc/README.mpc8349itx
new file mode 100644
index 0000000..4ae03ae
--- /dev/null
+++ b/doc/README.mpc8349itx
@@ -0,0 +1,187 @@
+Freescale MPC8349E-mITX and MPC8349E-mITX-GP Boards
+---------------------------------------------------
+
+1.	Board Description
+
+	The MPC8349E-mITX and MPC8349E-mITX-GP are reference boards featuring
+	the Freescale MPC8349E processor in a Mini-ITX form factor.
+
+	The MPC8349E-mITX-GP is an MPC8349E-mITX with the following differences:
+
+	A) One 8MB on-board flash EEPROM chip, instead of two.
+	B) No SATA controller
+	C) No Compact Flash slot
+	D) No Mini-PCI slot
+	E) No Vitesse 7385 5-port Ethernet switch
+	F) No 4-port USB Type-A interface
+
+2.	Board Switches and Jumpers
+
+2.0 	Descriptions for all of the board jumpers can be found in the User
+	Guide.  Of particular interest to U-Boot developers is jumper J22:
+
+	Pos.	Name		Default		Description
+	-----------------------------------------------------------------------
+	A	LGPL0		ON (0)          HRCW source, bit 0
+	B       LGPL1           ON (0)          HRCW source, bit 1
+	C       LGPL3           ON (0)		HRCW source, bit 2
+	D       LGPL5           OFF (1)         PCI_SYNC_OUT frequency
+	E       BOOT1           ON (0)          Flash EEPROM boot device
+	F       PCI_M66EN       ON (0)          PCI 66MHz enable
+	G       I2C-WP          ON (0)          I2C EEPROM write protection
+	H       F_WP            OFF (1)         Flash EEPROM write protection
+
+	Jumper J22.E is only for the ITX, and it decides the configuration
+	of the flash chips.  If J22.E is ON (i.e. jumpered), then flash chip
+	U4 is located at address FE000000 and flash chip U7 is at FE800000.
+	If J22.E is OFF, then U7 is at FE000000 and U4 is at FE800000.
+
+	For U-Boot development, J22.E can be used to switch back-and-forth
+	between two U-Boot images.
+
+3.	Memory Map
+
+3.1.	The memory map should look pretty much like this:
+
+	0x0000_0000 - 0x0FFF_FFFF DDR SDRAM (256 MB)
+	0x8000_0000 - 0x9FFF_FFFF PCI1 memory space (512 MB)
+	0xA000_0000 - 0xBFFF_FFFF PCI2 memory space (512 MB)
+	0xE000_0000 - 0xEFFF_FFFF IMMR (1 MB)
+	0xE200_0000 - 0xE2FF_FFFF PCI1 I/O space (16 MB)
+	0xE300_0000 - 0xE3FF_FFFF PCI2 I/O space (16 MB)
+	0xF000_0000 - 0xF000_FFFF Compact Flash (ITX only)
+	0xF001_0000 - 0xF001_FFFF Local bus expansion slot
+	0xF800_0000 - 0xF801_FFFF Vitesse 7385 Parallel Interface (ITX only)
+	0xFE00_0000 - 0xFE7F_FFFF First 8MB bank of Flash memory
+	0xFE80_0000 - 0xFEFF_FFFF Second 8MB bank of Flash memory (ITX only)
+
+3.2	Flash EEPROM layout.
+
+	On the ITX, jumper J22.E is used to determine which flash chips are
+	at which address.  When J22.E is switched, addresses from FE000000
+	to FE7FFFFF are swapped with addresses from FE800000 to FEFFFFFF.
+
+	On the ITX, at the normal boot address (aka HIGHBOOT):
+
+	FE00_0000	HRCW
+	FE70_0000	Alternative U-Boot image
+	FE80_0000	Alternative HRCW
+	FEF0_0000	U-Boot image
+	FEFF_FFFF	End of flash
+
+	On the ITX, at the low boot address (LOWBOOT)
+
+	FE00_0000	HRCW and U-Boot image
+	FE04_0000	U-Boot environment variables
+	FE80_0000	Alternative HRCW and U-Boot image
+	FEFF_FFFF	End of flash
+
+	On the ITX-GP, the only option is LOWBOOT and there is only one chip
+
+	FE00_0000	HRCW and U-Boot image
+	FE04_0000	U-Boot environment variables
+	F7FF_FFFF	End of flash
+
+4. Definitions
+
+4.1 Explanation of NEW definitions in:
+
+	include/configs/MPC8349ITX.h
+
+	CONFIG_MPC83XX	    	MPC83xx family
+	CONFIG_MPC8349	    	MPC8349 specific
+	CONFIG_MPC8349ITX		MPC8349E-mITX
+	CONFIG_MPC8349ITXGP		MPC8349E-mITX-GP
+
+5. Compilation
+
+	Assuming you're using BASH shell:
+
+		export CROSS_COMPILE=your-cross-compile-prefix
+		cd u-boot
+		make distclean
+
+		make MPC8349ITX_config
+	or:
+		make MPC8349ITXGP_config
+	or:
+		make MPC8349ITX_LOWBOOT_config
+
+		make
+
+6. Downloading and Flashing Images
+
+6.1 Download via tftp:
+
+	tftp $loadaddr <uboot>
+
+	where "<uboot>" is the path and filename, on the TFTP server, of
+	the U-Boot image.
+
+6.1 Reflash U-Boot Image using U-Boot
+
+	setenv uboot <uboot>
+	run tftpflash
+
+	where "<uboot>" is the path and filename, on the TFTP server, of
+	the U-Boot image.
+
+6.2 Using the HRCW to switch between two different U-Boot images on the ITX
+
+	Because the ITX has 16MB of flash, it is possible to keep two U-Boot
+	images in flash, and use the HRCW to specify which one is to be used
+	when the board boots.  This trick is especially effective with a
+	hardware debugger that can override the HRCW, such as the BDI-2000.
+
+	When the BMS bit in the HRCW is 0, the ITX will boot the U-Boot image
+	at address FE000000.  When the BMS bit is 1, the ITX will boot the
+	image at address FEF00000.
+
+	Therefore, just put a U-Boot image at both FE000000 and FEF00000 and
+	change the BMS bit whenever you want to boot the other image.
+
+	Step-by-step instructions:
+
+	1) Build an ITX image to be loaded at FEF00000
+
+		make distclean
+		make MPC8349ITX_config
+		make
+
+	2) Take the u-boot.bin image and flash it at FEF00000.
+
+		tftp $loadaddr u-boot.bin
+		protect off all
+		erase FEF00000 +$filesize
+		cp.b $loadaddr FEF00000 $filesize
+
+	3) Build an ITX image to be loaded at FE000000
+
+		make distclean
+		make MPC8349ITX_LOWBOOT_config
+		make
+
+	4) Take the u-boot.bin image and flash it at FE000000.
+
+		tftp $loadaddr u-boot.bin
+		protect off FE000000 +$filesize
+		erase FE000000 +$filesize
+		cp.b $loadaddr FE000000 $filesize
+
+	The HRCW in flash is currently set to boot the image at FE000000.
+
+	If you have a hardware debugger, configure it to set the HRCW to
+	B460A000 04040000 if you want to boot the image at FEF00000, or set
+	it to B060A000 04040000 if you want to boot the image at FE000000.
+
+	To change the HRCW in flash to boot the image at FEF00000, use these
+	U-Boot commands:
+
+		cp.b FE000000 1000 10000	; copy 1st flash sector to 1000
+		mw.b 1020 b4 8			; modify BMS bit
+		protect off FE000000 +10000
+		erase FE000000 +10000
+		cp.b 1000 FE000000 10000
+
+7. Notes
+	1) The console baudrate for MPC8349EITX is 115200bps.
diff --git a/doc/README.mpc8641hpcn b/doc/README.mpc8641hpcn
index 4a650ce..3b88f8b 100644
--- a/doc/README.mpc8641hpcn
+++ b/doc/README.mpc8641hpcn
@@ -121,3 +121,37 @@ To Flash U-boot into the alternative bank (0xFF800000 - 0xFFBFFFFF):
 	0xe300_0000	0xe3ff_ffff	PCI2/PEX2 IO	16M
 	0xfe00_0000	0xfeff_ffff	Flash(alternate)16M
 	0xff00_0000	0xffff_ffff	Flash(boot bank)16M
+
+5. 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.
diff --git a/doc/README.sbc8349 b/doc/README.sbc8349
new file mode 100644
index 0000000..a0ac638
--- /dev/null
+++ b/doc/README.sbc8349
@@ -0,0 +1,99 @@
+
+
+	U-Boot for Wind River SBC834x Boards
+	====================================
+
+
+The Wind River SBC834x board is a 6U form factor (not CPCI) reference
+design that uses the MPC8347E or MPC8349E processor.  U-Boot support
+for this board is heavily based on the existing U-Boot support for
+Freescale MPC8349 reference boards.
+
+Support has been primarily tested on the SBC8349 version of the board,
+although earlier versions were also tested on the SBC8347.  The primary
+difference in the two is the level of PCI functionality.
+
+	http://www.windriver.com/products/OCD/SBC8347E_49E/
+
+
+Flash Details:
+==============
+
+The flash type is intel 28F640Jx (4096x16) [one device].  Base address
+is 0xFF80_0000 which is also where the Hardware Reset Configuration
+Word (HRCW) is stored.  Caution should be used to not overwrite the
+HRCW, or "CF RCW" with a Wind River ICE will be required to restore
+the HRCW and allow the board to enter background mode for further
+steps in the flash process.
+
+
+Restoring a corrupted or missing flash image:
+=============================================
+
+Details for storing U-boot to flash using a Wind River ICE can be found
+on page 19 of the board manual (request ERG-00328-001).  The following
+is a summary of that information:
+
+  - Connect ICE and establish connection to it from WorkBench/OCD.
+  - Ensure you have background mode (BKM) in the OCD terminal window.
+  - Select the appropriate flash type (listed above)
+  - Prepare a u-boot image by using the Wind River Convert utility;
+    by using "Convert and Add file" on the ELF file from your build.
+    Convert from FFF0_0000 to FFFF_FFFF (or to FFF3_FFFF if you are
+    trying to preserve your old environment settings).
+  - Set the start address of the erase/flash process to FFF0_0000
+  - Set the target RAM required to 64kB.
+  - Select sectors for erasing (see note on enviroment below)
+  - Select Erase and Reprogram.
+
+Note that some versions of the register files used with Workbench
+would zero some TSEC registers, which inhibits ethernet operation
+by u-boot when this register file is played to the target.  Using
+"INN" in the OCD terminal window instead of "IN" before the "GO"
+will not play the register file, and allow u-boot to use the TSEC
+interface while executed from the ICE "GO" command.
+
+Alternatively, you can locate the register file which will be named
+WRS_SBC8349_PCT00328001.reg or similar) and "REM" out all the lines
+beginning with "SCGA TSEC1" and "SCGA TSEC2".  This allows you to
+use all the remaining register file content.
+
+If you wish to preserve your prior U-Boot environment settings,
+then convert (and erase to) 0xFFF3FFFF instead of 0xFFFFFFFF.
+The size for converting (and erasing) must be at least as large
+as u-boot.bin.
+
+
+Updating U-Boot with U-Boot:
+============================
+
+This procedure is very similar to other boards that have u-boot installed.
+Assuming that the network has been configured, and that the new u-boot.bin
+has been copied to the TFTP server, the commands are:
+
+	tftp 200000 u-boot.bin
+	protect off all
+	erase fff00000 fff3ffff
+	cp.b 200000 fff00000 3ffff
+	protect on all
+
+
+PCI:
+====
+
+This board and U-Boot have been tested with PCI built in, on a SBC8349
+and confirmed that the "pci" command showed the intel e1000 that was
+present in the PCI slot.  Note that if a 33MHz 32bit card is inserted
+in the slot, then the whole board will clock down to a 33MHz base
+clock instead of the default 66MHz.  This will change the baud clocks
+and mess up your serial console output.  If you want to use a 33MHz PCI
+card, then you should build a U-Boot with #undef PCI_66M in the
+include/configs/sbc8349.h and store this to flash prior to powering down
+the board and inserting the 33MHz PCI card.
+
+By default PCI support is disabled to better support very early
+revision MPC834x chips with possible PCI issues.  Also PCI support is
+untested on the sbc8347 variants at this point in time.
+
+
+						Paul Gortmaker, 01/2007