release

MIPS下的boottloader yamon 的源代码

MIPS YAMON(tm) Release Notes
============================

Revision:     02.00
Release Date: 8 September 2000

Reason for release:
-------------------
Support for Malta and SEAD-2 boards.
New commands added.
Source code rearranged.
Minor bugfixes.

Principal modifications since last release:
-------------------------------------------
Rearranged source code making YAMON easier to port to new platforms/CPUs.

Added support for Malta and SEAD-2 boards.

Added "info isa" for Malta board.
Support for high baudrates on Malta (230400bps, 460800bps).

Added cache, sleep, tlb commands.

Optimised SDRAM configuration.

Support for 64 bit user applications, including GDB stub.

Added verbose ("-v") and disable checksum ("-c") options to gdb command.
Added parameter passing to applications when using gdb command.

Added retry ("-r") option to load command.

Additions to the YAMON API :
    Registration of exception handlers
    Getchar
    SYSCON read (for access to various YAMON configuration data)

Added "start" environment variable that is executed after a reset (unless
cancelled).

";" separation of commands.
If command line starts with +<n>; the line is repeated n times.

Environment variables may now be used as "alias" 
  Example : 
    YAMON> set x "echo abc; echo def"; $x
    abc
    def
    YAMON>

Exception dump compressed, in particular on 64 bit processors.

Improved check for address validity, incl. TLB lookup.

Added EJTAG exception vector (at 0x80000300).
Added NMI exception vector   (at 0x80000380).


Known issues/bugs:
------------------
None.
Refer to latest Errata for updates to these Notes.

Boards supported :
------------------
Atlas with CoreLV or "QED RM5261 Board"
Malta with CoreLV or "QED RM5261 Board"
SEAD
SEAD-2

CPUs supported :
----------------
MIPS 4Kc, 4Km, 4Kp, 5Kc
QED RM5261