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><A
NAME="BRUTUS">ARM/StrongARM(SA1100) Intel Brutus</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5642">Overview</H2
><P
>RedBoot
supports both board serial ports on the Brutus board. The default serial port
settings are 38400,8,N,1. flash management is not currently supported. </P
><P
>The following RedBoot configurations are supported:
<DIV
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></P
><TABLE
BORDER="1"
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><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"
>ROM</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>[ROM]</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>RedBoot running from the board's flash boot
sector.</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>redboot_ROM.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_RAM.ecm</TD
></TR
></TBODY
></TABLE
><P
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><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5671">Initial Installation Method</H2
><P
>Device programmer is used to program socketed flash parts.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5674">Special RedBoot Commands</H2
><P
>None.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5677">Memory Maps</H2
><P
>The first level page table is located at physical address 0xc0004000.
No second level tables are used.
<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 - 0x000fffff Boot ROM
0x08000000 - 0x083fffff Application flash
0x10000000 - 0x100fffff SRAM
0x18000000 - 0x180fffff Chip Select 3
0x20000000 - 0x3fffffff PCMCIA
0x80000000 - 0xbfffffff SA-1100 Internal Registers
0xc0000000 - 0xc7ffffff DRAM Bank 0
0xc8000000 - 0xcfffffff DRAM Bank 1
0xd0000000 - 0xd7ffffff DRAM Bank 2
0xd8000000 - 0xdfffffff DRAM Bank 3
0xe0000000 - 0xe7ffffff Cache Clean
Virtual Address Range C B Description
----------------------- - - ----------------------------------
0x00000000 - 0x003fffff Y Y DRAM Bank 0
0x00400000 - 0x007fffff Y Y DRAM Bank 1
0x00800000 - 0x00bfffff Y Y DRAM Bank 2
0x00c00000 - 0x00ffffff Y Y DRAM Bank 3
0x08000000 - 0x083fffff Y Y Application flash
0x10000000 - 0x100fffff Y N SRAM
0x20000000 - 0x3fffffff N N PCMCIA
0x40000000 - 0x400fffff Y Y Boot ROM
0x80000000 - 0xbfffffff N N SA-1100 Internal Registers
0xe0000000 - 0xe7ffffff Y Y Cache Clean</PRE
></TD
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><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5684">Platform Resource Usage</H2
><P
>The SA11x0 OS timer is used as a polled timer to provide timeout
support for XModem file transfers.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5687">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
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><TD
><PRE
CLASS="PROGRAMLISTING"
>export TARGET=brutus
export ARCH_DIR=arm
export PLATFORM_DIR=sa11x0/brutus</PRE
></TD
></TR
></TABLE
></P
><P
>The names of configuration files are listed above with the
description of the associated modes.</P
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