readme

motorola 8260 CPU上面

                 README: Motorola MPC8260 processor card (8260pc)

This file contains board-specific information for the Motorola MPC8260 
processor card.  Specifically, this file contains information on any BSP
interface changes from previous software or hardware versions, and
contains caveats that the user must be aware of before using this BSP.
Additionally, the target board's manual page entry (i.e., 'man ads8260')
provides board-specific information necessary to run VxWorks, and
should be read before this BSP is used.
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RELEASE 1.2/4
	changed to MPC8260 processor card
	1. because this BSP rename ads8260.h to 8260pc.h, so in
	   \tornado\target\src\drv\timer\m8260Timer.c, not include ads8260.h,
	   change to include config.h
	2. have fixed SDRAM initiation bugs, you can enable L1 cache.
	3. If you use 66MHZ input for MPC8260, you must change the file
	   \tornado\target\src\drv\sio\m8260sio.c, which is attached in the package,
       otherwise, the UART baute is not correct.
	4. Because VxWorks BSP assumes the bootrom address equal to the reset vector
	   address, for MPC8260 processor card, the bootrom address is 0xffe00000, and the
	   reset vector address is 0xfff00000. You must program the bootrom to 0xffe00000,
	   at the reset vector address 0xfff00100 of Flash memory, you have three options: 
	   a. program a call intruction, which jump to 0xffe00100
	   b. program the bootrom to 0xfff00000 too, in other words, program bootrom both 
	      at 0xffe00000 and 0xfff00000.
	   c. I have a boot loader program (fadsrom.bin), you can program it at 0xfff00000.
	      it can boot Linux from the Flash (lboot command), and boot VxWorks bootrom
	      at 0xffe00000 too (BootOS command). But you must use 40MHZ input, otherwise,
	      the SCC1 UART is uncorrect.
	5. I do not know why the address of bootrom is 0x10100, when you use visionCLK to
	   convert it to EST bin file, you can select 
	  "in Range of 0x10000 to 0xffffffff".


RELEASE 1.2/3

    FCS release

    changed bsp name from "vads8260" to "ads8260"

RELEASE 1.2/2

    Beta release

RELEASE 1.2/1

    MMU and cache support added but may not work in all hardware

RELEASE 1.2/0

    First release for Tornado 2.0.

    Source code for the Ethernet driver is included in this Alpha EAR
    but will not be included in the Beta or FCS products. In the Beta 
    and FCS products the driver will be released in object form only.