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diff --git a/doc/README.sbc8349 b/doc/README.sbc8349 deleted file mode 100644 index 2c35919..0000000 --- a/doc/README.sbc8349 +++ /dev/null @@ -1,127 +0,0 @@ - - - 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 reset the -board without having a valid HRCW in place (i.e. erased flash) as -then a Wind River ICE will be required to restore the HRCW and flash -image. - - -Restoring a corrupted or missing flash image: -============================================= - -Note that U-boot versions up to and including 2009.06 had essentially -two copies of u-boot in flash; one at the very beginning, which set -the HRCW, and one at the very end, which was the image that was run. -As of this point in time, the two have been combined into just one -at the beginning of flash, which provides both the HRCW, and the image -that is executed. This frees up the remainder of flash for other uses. -Use of the u-boot command "fli" will indicate what parts are in use. -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 FF80_0000 to FFFF_FFFF (or to FF83_FFFF if you are - trying to preserve your old environment settings and user flash). - - Set the start address of the erase/flash process to FF80_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) 0xFF83FFFF 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 ff800000 ff83ffff - cp.b 200000 ff800000 40000 - protect on all - -You may wish to do a "md ff800000 20" operation as a prefix and postfix -to the above steps to inspect/compare the HRCW before/after as an extra -safety check before resetting the board upon completion of the reflash. - -PCI: -==== - -There are three configuration choices: - sbc8349_config - sbc8349_PCI_33_config - sbc8349_PCI_66_config - -The 1st does not enable CONFIG_PCI, and assumes that the PCI slot -will be left empty (M66EN high), and so the board will operate with -a base clock of 66MHz. Note that you need both PCI enabled in u-boot -and linux in order to have functional PCI under linux. The only -reason for choosing to not enable PCI would be if you had a very -early (rev 1.0) CPU with possible PCI issues. - -The second enables PCI support and builds for a 33MHz clock rate. 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 -were previously running at 66MHz. If you want to use a 33MHz PCI card, -then you should build a U-Boot with sbc8349_PCI_33_config and store this -to flash prior to powering down the board and inserting the 33MHz PCI -card. - -The third option builds PCI support in, and leaves the clocking at the -default 66MHz. This has been tested with an intel PCI-X e1000 card. -This is also the appropriate choice for people with a recent (non 1.0) -CPU who currently have the PCI slot physically empty, but intend to -possibly add a PCI-X card at a later date. - - => pci - Scanning PCI devices on bus 0 - BusDevFun VendorId DeviceId Device Class Sub-Class - _____________________________________________________________ - 00.00.00 0x1957 0x0080 Processor 0x20 - 00.11.00 0x8086 0x1026 Network controller 0x00 - => |