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>ARM/ARM9 Agilent AAED2000</TITLE
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><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AAED2000">ARM/ARM9 Agilent AAED2000</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5379">Overview</H2
><P
>RedBoot supports the serial and ethernet ports
on the board. The default serial port settings are 38400,8,N,1.
RedBoot also supports flash management on the AAED2000.</P
><P
>The following RedBoot configurations are supported:
<DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN5389"><P
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><THEAD
><TR
><TH
ALIGN="LEFT"
VALIGN="TOP"
>Configuration</TH
><TH
ALIGN="LEFT"
VALIGN="TOP"
>Mode</TH
><TH
ALIGN="LEFT"
VALIGN="TOP"
>Description</TH
><TH
ALIGN="LEFT"
VALIGN="TOP"
>File</TH
></TR
></THEAD
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>ROMRAM</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>[ROMRAM]</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>RedBoot running from RAM, but contained in the
board's flash boot sector.</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>redboot_primary_ROMRAM.ecm</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>RAM</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>[RAM]</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>RedBoot running from RAM with RedBoot in the
flash boot sector.</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>redboot_primary_RAM.ecm</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5408">Initial Installation Method</H2
><P
>It is possible to install RedBoot in one of two ways. Either as
the primary bootmonitor on the board (installed to blocks 0-1 of the
flash) or as the secondary bootmonitor on the board (installed to
blocks 1-2 of the flash).</P
><P
>Presently, only the former method is supported.</P
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="AEN5412">RedBoot as Primary Bootmonitor</H3
><P
>RedBoot is installed in flash using the on-board ARM Boot
Monitor.</P
><P
>Boot the board while pressing SPACE. This should bring up the
Boot Monitor:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>ARM bootPROM [Version 1.3] Rebuilt on Jul 16 2001 at 16:21:36
Running on a P920 board Evaluation Board
Board Revision V1.0, ARM920T processor Processor
Memory Size is 32MBytes, Flash Size is 32MBytes
Copyright (c) ARM Limited 1999 - 2001. All rights reserved.
Board designed by ARM Limited
Hardware support provided at http://www.arm.com/
For help on the available commands type ? or h
boot Monitor > </PRE
></TD
></TR
></TABLE
>
Download the RAM mode image of RedBoot configured as a primary
bootmonitor using the ARM bootmonitor's SREC-download command:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>boot Monitor > <TT
CLASS="USERINPUT"
><B
>m</B
></TT
>
Load Motorola S-Record image into memory and execute it
The S-Record loader only accepts input on the serial port.
Record addresses must be between 0x00008000 and 0x01E0F510.
Type Ctrl/C to exit loader.</PRE
></TD
></TR
></TABLE
>
Use the terminal emulator's ASCII upload command, or (on Linux) simply
cat the file to the serial port:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>$ <TT
CLASS="USERINPUT"
><B
>cat redboot_primary_RAM/redboot.srec >/dev/ttyS1</B
></TT
></PRE
></TD
></TR
></TABLE
>
You should see RedBoot start up:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>FLASH configuration checksum error or invalid key
Ethernet eth0: MAC address 00:30:d3:03:04:99
IP: 192.168.42.111, Default server: 192.168.42.3
RedBoot(tm) bootstrap and debug environment [RAM]
Non-certified release, version UNKNOWN - built 13:15:40, Nov 9 2001
Platform: AAED2000 system (ARM9) [Primary]
Copyright (C) 2000, 2001, Red Hat, Inc.
RAM: 0x00000000-0x01f80000, 0x0006f208-0x01f51000 available
FLASH: 0x60000000 - 0x62000000, 256 blocks of 0x00020000 bytes each.
RedBoot></PRE
></TD
></TR
></TABLE
>
As can be seen from the output above, the network has been configured
to give the board an IP address and information about the default
server. If things are not set up on your network, you can still
continue, but use the Y-modem download method when loading the RedBoot
ROMRAM mode image.
Now initialize RedBoot's FIS:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <TT
CLASS="USERINPUT"
><B
>fis init</B
></TT
>
About to initialize [format] FLASH image system - continue (y/n)? <TT
CLASS="USERINPUT"
><B
>y</B
></TT
>
*** Initialize FLASH Image System
Warning: device contents not erased, some blocks may not be usable
... Erase from 0x61fe0000-0x62000000: .
... Program from 0x01f5f000-0x01f5f300 at 0x61fe0000: .</PRE
></TD
></TR
></TABLE
>
Download the ROMRAM mode image of RedBoot via ethernet:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <TT
CLASS="USERINPUT"
><B
>load -b %{FREEMEMLO} redboot_primary_ROMRAM/redboot.srec</B
></TT
></PRE
></TD
></TR
></TABLE
>
or using serial Y-modem protocol:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <TT
CLASS="USERINPUT"
><B
>load -mode ymodem -b %{FREEMEMLO}</B
></TT
></PRE
></TD
></TR
></TABLE
>
(Use the terminal emulator's Y-modem upload command to send the file
<TT
CLASS="FILENAME"
>redboot_primary_ROMRAM/redboot.srec</TT
>.)
When the image has been downloaded, program it into flash:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>Address offset = 0x00ff8000
Entry point: 0x00008040, address range: 0x00008000-0x0002da80
RedBoot> <TT
CLASS="USERINPUT"
><B
>fi cr RedBoot</B
></TT
>
An image named 'RedBoot' exists - continue (y/n)? <TT
CLASS="USERINPUT"
><B
>y</B
></TT
>
* CAUTION * about to program 'RedBoot'
at 0x60000000..0x6003ffff from 0x00100000 - continue (y/n)? <TT
CLASS="USERINPUT"
><B
>y</B
></TT
>
... Erase from 0x60000000-0x60040000: ..
... Program from 0x00100000-0x00140000 at 0x60000000: ..
... Erase from 0x61fe0000-0x62000000: .
... Program from 0x01f5f000-0x01f7f000 at 0x61fe0000: .</PRE
></TD
></TR
></TABLE
>
Now reset the board. You should see the RedBoot banner.</P
></DIV
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5434">Special RedBoot Commands</H2
><P
>The <B
CLASS="COMMAND"
>exec</B
> command which allows the loading
and execution of Linux kernels,
is supported for this board (see <A
HREF="executing-programs.html"
>the Section called <I
>Executing Programs from RedBoot</I
> in Chapter 2</A
>). The <B
CLASS="COMMAND"
>exec</B
> parameters used for the AAED2000 are:</P
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
>-b <TT
CLASS="REPLACEABLE"
><I
><addr></I
></TT
></DT
><DD
><P
>Location Linux kernel was loaded to</P
></DD
><DT
>-l <TT
CLASS="REPLACEABLE"
><I
><len></I
></TT
></DT
><DD
><P
>Length of kernel</P
></DD
><DT
>-c <TT
CLASS="REPLACEABLE"
><I
>"params"</I
></TT
></DT
><DD
><P
>Parameters passed to kernel</P
></DD
><DT
>-r <TT
CLASS="REPLACEABLE"
><I
><addr></I
></TT
></DT
><DD
><P
>'initrd' ramdisk location</P
></DD
><DT
>-s <TT
CLASS="REPLACEABLE"
><I
><len></I
></TT
></DT
><DD
><P
>Length of initrd ramdisk</P
></DD
></DL
></DIV
><P
>The parameters for kernel image base and size are automatically
set after a load operation. So one way of starting the kernel would
be:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <TT
CLASS="USERINPUT"
><B
>load -r -b 0x100000 zImage</B
></TT
>
Raw file loaded 0x00100000-0x001a3d6c
RedBoot> exec -c "console=ttyAC0,38400"
Using base address 0x00100000 and length 0x000a3d6c
Uncompressing Linux.....</PRE
></TD
></TR
></TABLE
>
An image could also be put in flash and started directly:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <TT
CLASS="USERINPUT"
><B
>exec -b 0x60040000 -l 0xc0000 -c "console=ttyAC0,38400"</B
></TT
>
Uncompressing Linux.....</PRE
></TD
></TR
></TABLE
> </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5471">Memory Maps</H2
><P
>The MMU page tables are located at 0x4000. <DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>NOTE: </B
>The virtual memory maps in this section use a C and B column to indicate
whether or not the region is cached (C) or buffered (B).</P
></BLOCKQUOTE
></DIV
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>Physical Address Range Description
----------------------- ----------------------------------
0x00000000 - 0x01ffffff Flash
0x10000000 - 0x100fffff Ethernet
0x30000000 - 0x300fffff Board registers
0x40000000 - 0x4fffffff PCMCIA Slot (0)
0x50000000 - 0x5fffffff Compact Flash Slot (1)
0x80000000 - 0x800037ff I/O registers
0xb0060000 - 0xb00fffff On-chip SRAM
0xf0000000 - 0xfd3fffff SDRAM
Virtual Address Range C B Description
----------------------- - - ----------------------------------
0x00000000 - 0x01f7ffff Y Y SDRAM
0x01f80000 - 0x01ffffff Y Y SDRAM (used for LCD frame buffer)
0x10000000 - 0x100fffff N N Ethernet
0x30000000 - 0x300fffff N N Board registers
0x40000000 - 0x4fffffff N N PCMCIA Slot (0)
0x50000000 - 0x5fffffff N N Compact Flash Slot (1)
0x60000000 - 0x61ffffff N N Flash
0x80000000 - 0x800037ff N N I/O registers
0xf0000000 - 0xffffffff N N SDRAM (uncached) </PRE
></TD
></TR
></TABLE
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5478">Rebuilding RedBoot</H2
><P
>These shell variables provide the platform-specific information
needed for building RedBoot according to the procedure described in
<A
HREF="rebuilding-redboot.html"
>Chapter 3</A
>:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>export TARGET=aaed
export ARCH_DIR=arm
export PLATFORM_DIR=arm9/aaed2000</PRE
></TD
></TR
></TABLE
></P
><P
>The names of configuration files are listed above with the
description of the associated modes.</P
></DIV
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