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><A
NAME="ASSABET">ARM/StrongARM(SA1110) Intel SA1110 (Assabet)</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5748">Overview</H2
><P
>RedBoot
supports the board serial port and the compact flash ethernet port. The default
serial port settings are 38400,8,N,1. RedBoot also supports flash management
on the Assabet. </P
><P
>The following RedBoot configurations are supported:
<DIV
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NAME="AEN5758"><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"
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>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
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><P
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><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5777">Initial Installation Method</H2
><P
>A Windows or Linux utility is used to program flash over parallel port
driven JTAG interface. See board documentation for details on in situ flash
programming. </P
><P
>The flash parts are also socketed and may be programmed in a suitable
device programmer.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5781">Special RedBoot Commands</H2
><P
>None.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5784">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
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><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>Physical Address Range Description
----------------------- ----------------------------------
0x00000000 - 0x07ffffff flash
0x08000000 - 0x0fffffff SA-1111 Board flash
0x10000000 - 0x17ffffff Board Registers
0x18000000 - 0x1fffffff Ethernet
0x20000000 - 0x2fffffff SA-1111 Board PCMCIA
0x30000000 - 0x3fffffff Compact Flash
0x40000000 - 0x47ffffff SA-1111 Board
0x48000000 - 0x4bffffff GFX
0x80000000 - 0xbfffffff SA-1110 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 - 0x01ffffff Y Y DRAM Bank 0
0x08000000 - 0x0fffffff Y Y SA-1111 Board flash
0x10000000 - 0x17ffffff N N Board Registers
0x18000000 - 0x1fffffff N N Ethernet
0x20000000 - 0x2fffffff N N SA-1111 Board PCMCIA
0x30000000 - 0x3fffffff N N Compact Flash
0x40000000 - 0x47ffffff N N SA-1111 Board
0x48000000 - 0x4bffffff N N GFX
0x50000000 - 0x57ffffff Y Y flash
0x80000000 - 0xbfffffff N N SA-1110 Internal Registers
0xc0000000 - 0xc1ffffff N Y DRAM Bank 0
0xe0000000 - 0xe7ffffff Y Y Cache Clean</PRE
></TD
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><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5791">Platform Resource Usage</H2
><P
>The SA11x0 OS timer is used as a polled timer to provide timeout support
for network and XModem file transfers.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN5794">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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><PRE
CLASS="PROGRAMLISTING"
>export TARGET=assabet
export ARCH_DIR=arm
export PLATFORM_DIR=sa11x0/assabet</PRE
></TD
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><P
>The names of configuration files are listed above with the
description of the associated modes.</P
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