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| diff --git a/doc/README.ocotea b/doc/README.ocotea new file mode 100644 index 000000000..403735d0f --- /dev/null +++ b/doc/README.ocotea @@ -0,0 +1,73 @@ +			   IBM Ocotea Board + +		    Last Update: March 2, 2004 +======================================================================= + +This file contains some handy info regarding U-Boot and the IBM +Ocotea 440gx  evalutation board. See the README.ppc440 for additional +information. + + +SWITCH SETTINGS & JUMPERS +========================== + +Here's what I've been using successfully. If you feel inclined to +change things ... please read the docs! + +DIPSW   U46         U80 +------------------------ +SW 1    off         off +SW 2    on          off +SW 3    off         off +SW 4    off         off +SW 5    off         off +SW 6    on          on +SW 7    on          off +SW 8    on          off + +J41: strapped +J42: open + +All others are factory default. + + +I2C Information +===================== + +See README.ebony for information. + +PCI +=========================== + +Untested at the time of writing. + +PPC440GX Ethernet EMACs +=========================== + +All EMAC ports have been tested and are known to work +with EPS Group 4. + +Special note about the Cicada CIS8201: +	The CIS8201 Gigabit PHY comes up in GMII mode by default. +	One must hit an extended register to allow use of RGMII mode. +	This has been done in the 440gx_enet.c file with a #ifdef/endif +	pair. + +IBM does not store the EMAC ethernet addresses within their PIBS bootloader. +The addresses contained in the config header file are from my particular +board and you _*should*_ change them to reflect your board either in the +config file and/or in your environment variables.  I found the addresses on +labels on the bottom side of the board. + + +BDI2k or JTAG Debugging +=========================== + +For ease of debugging you can swap the small boot flash and external SRAM +by changing U46:3 to on.  You can then use the sram as your boot flash by +loading the sram via the jtag debugger. + + +Regards, +--Travis +<tsawyer@sandburst.com> |