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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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<HTML
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><HEAD
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><TITLE
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>SuperH/SH3(SH7709) Hitachi Solution Engine 7709</TITLE
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TITLE="SuperH/SH3(SH7708) Hitachi EDK7708"
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><TR
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><TH
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>eCos Reference Manual</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="edk7708.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 5. Installation and Testing</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="hs7729pci.html"
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>Next</A
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="SE7709">SuperH/SH3(SH7709) Hitachi Solution Engine 7709</H1
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN7247">Overview</H2
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><P
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>This
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description covers the MS7709SE01 variant. See <A
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HREF="se77x9.html"
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>the Section called <I
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>SuperH/SH3(SH77X9) Hitachi Solution Engine 77X9</I
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></A
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>
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for instructions for the MS7729SE01 and MS7709SSE0101 variants.</P
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><P
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>RedBoot uses
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the COM1 and COM2 serial ports. The default serial port settings are 38400,8,N,1.
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Ethernet is also supported using the 10-base T connector. </P
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><P
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>Management of onboard flash is also supported.</P
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><P
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>The following RedBoot configurations are supported:
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      <DIV
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CLASS="INFORMALTABLE"
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><A
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NAME="AEN7260"><P
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></P
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><TABLE
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BORDER="1"
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CLASS="CALSTABLE"
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><THEAD
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><TR
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><TH
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ALIGN="LEFT"
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VALIGN="TOP"
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>Configuration</TH
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><TH
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ALIGN="LEFT"
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VALIGN="TOP"
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>Mode</TH
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><TH
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ALIGN="LEFT"
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VALIGN="TOP"
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>Description</TH
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><TH
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ALIGN="LEFT"
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VALIGN="TOP"
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>File</TH
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></TR
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></THEAD
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><TBODY
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>ROM</TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>[ROM]</TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>RedBoot running from the board's flash boot
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              sector.</TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>redboot_ROM.ecm</TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>RAM</TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>[RAM]</TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>RedBoot running from RAM with RedBoot in the
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              flash boot sector.</TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>redboot_RAM.ecm</TD
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></TR
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></TBODY
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></TABLE
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><P
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></P
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></DIV
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></P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN7279">Initial Installation Method</H2
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><P
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>The Solution Engine ships with the Hitachi boot monitor in EPROM
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which allows for initial programming of RedBoot:</P
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><P
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></P
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><OL
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TYPE="1"
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><LI
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><P
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>Set switch SW4-1 to ON [boot from EPROM]</P
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></LI
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><LI
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><P
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>Connect a serial cable to CN1 (SCI) and power up the board.</P
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></LI
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><LI
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><P
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>After the boot monitor banner, invoke the flash
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download/program command:<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>Ready &gt;<TT
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CLASS="USERINPUT"
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><B
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>fl</B
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></TT
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></PRE
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></TD
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></TR
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></TABLE
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></P
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></LI
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><LI
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><P
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>The monitor should now ask for input:
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<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>Flash ROM data copy to RAM
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Please Send A S-format Record</PRE
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></TD
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></TR
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></TABLE
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>At this point copy the
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RedBoot ROM SREC file to the serial port:<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>$ <TT
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CLASS="USERINPUT"
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><B
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>cat redboot_SE7709RP_ROM.eprom.srec &gt; /dev/ttyS0</B
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></TT
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></PRE
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></TD
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></TR
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></TABLE
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>
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Eventually you
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should see something like<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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>Start Addrs = A1000000
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End Addrs = A1xxxxxx
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Transfer complete</PRE
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></TD
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></TR
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></TABLE
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> from the monitor.</P
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></LI
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><LI
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><P
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>Set switch SW4-1 to OFF [boot from flash] and reboot the board. You
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should now see the RedBoot banner.</P
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></LI
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></OL
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN7299">Special RedBoot Commands</H2
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><P
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>The <B
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CLASS="COMMAND"
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>exec</B
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> command which allows the loading
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and execution of Linux kernels
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is supported for this board (see <A
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HREF="executing-programs.html"
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>the Section called <I
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>Executing Programs from RedBoot</I
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> in Chapter 2</A
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>). The <B
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CLASS="COMMAND"
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>exec</B
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> parameters used for the SE77x9 are:</P
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><P
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></P
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><DIV
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CLASS="VARIABLELIST"
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><DL
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><DT
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>-b <TT
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CLASS="REPLACEABLE"
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><I
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>&lt;addr&#62;</I
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></TT
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></DT
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><DD
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><P
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>Parameter block address. This is normally the first
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page of the kernel image and defaults to 0x8c101000</P
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></DD
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><DT
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>-i <TT
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CLASS="REPLACEABLE"
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><I
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>&lt;addr&#62;</I
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></TT
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></DT
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><DD
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><P
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>Start address of initrd
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image</P
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></DD
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><DT
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>-j <TT
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CLASS="REPLACEABLE"
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><I
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>&lt;size&#62;</I
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></TT
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></DT
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><DD
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><P
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>Size of initrd image</P
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></DD
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><DT
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>-c <TT
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CLASS="REPLACEABLE"
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><I
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>"args"</I
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></TT
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></DT
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><DD
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><P
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>Kernel arguments string</P
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></DD
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><DT
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>-m <TT
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CLASS="REPLACEABLE"
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><I
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>&lt;flags&#62;</I
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></TT
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></DT
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><DD
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><P
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>Mount rdonly flags. If set to a non-zero value the
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root partition will be mounted read-only.</P
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></DD
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><DT
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>-f <TT
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CLASS="REPLACEABLE"
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><I
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>&lt;flags&#62;</I
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></TT
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></DT
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><DD
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><P
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>RAM disk flags. Should normally be 0x4000</P
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></DD
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><DT
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>-r <TT
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CLASS="REPLACEABLE"
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><I
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>&lt;device number&#62;</I
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></TT
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></DT
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><DD
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><P
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>Root device specification. /dev/ram is 0x0101</P
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></DD
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><DT
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>-l <TT
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CLASS="REPLACEABLE"
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><I
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>&lt;type&#62;</I
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></TT
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></DT
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><DD
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><P
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>Loader type</P
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></DD
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></DL
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></DIV
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><P
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>Finally the kernel entry address can be specified as an optional
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argument. The default is 0x8c102000</P
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><P
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>For the the SE77x9, Linux by default expects to be loaded at
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0x8c001000 which conflicts with the data space used by RedBoot.
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To work around this, either change the CONFIG_MEMORY_START kernel
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option to a higher address, or use the compressed kernel image and load
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it at a higher address. For example, setting CONFIG_MEMORY_START to
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0x8c100000, the kernel expects to be loaded at address 0x8c101000 with
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the entry point at 0x8c102000.</P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN7348">Memory Maps</H2
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><P
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>RedBoot sets up the following memory map on the SE77x9 board.<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>Physical Address Range  Description
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----------------------- -----------
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0x80000000 - 0x803fffff Flash (MBM29LV160)
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0x81000000 - 0x813fffff EPROM (M27C800)
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0x8c000000 - 0x8dffffff DRAM
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0xb0000000 - 0xb03fffff Ethernet (DP83902A)
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0xb0800000 - 0xb08fffff 16C552A
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0xb1000000 - 0xb100ffff Switches
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0xb1800000 - 0xb18fffff LEDs
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0xb8000000 - 0xbbffffff PCMCIA (MaruBun)</PRE
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></TD
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></TR
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></TABLE
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></P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN7352">Ethernet Driver</H2
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><P
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>The ethernet driver uses a hardwired ESA which can, at present,
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only be changed in CDL.</P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN7355">Rebuilding RedBoot</H2
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><P
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>These shell variables provide the platform-specific information
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needed for building RedBoot according to the procedure described in
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<A
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HREF="rebuilding-redboot.html"
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>Chapter 3</A
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>:
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<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>export TARGET=se77x9
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export ARCH_DIR=sh
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export PLATFORM_DIR=se77x9</PRE
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></TD
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></TR
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></TABLE
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></P
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><P
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>The names of configuration files are listed above with the
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description of the associated modes.</P
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></DIV
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></DIV
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>SuperH/SH3(SH7708) Hitachi EDK7708</TD
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>Up</A
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>SuperH/SH3(SH7729) Hitachi HS7729PCI</TD
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