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>SuperH/SH3(SH7729) Hitachi HS7729PCI</TITLE
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><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="HS7729PCI">SuperH/SH3(SH7729) Hitachi HS7729PCI</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7363">Overview</H2
><P
>RedBoot uses
the COM1 and COM2 serial ports (and the debug port on the
motherboard).
The default serial port settings are 38400,8,N,1.
Ethernet is also supported using a D-Link DFE-530TX PCI plugin
card. Management of onboard flash is also supported. </P
><P
>The following RedBoot configurations are supported:
<DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN7373"><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"
>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
></P
></DIV
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7392">Initial Installation Method</H2
><P
>A ROM mode RedBoot image must be programmed
into the two EPROMs. Two files with a split version of the ROM mode
image is
provided: it is also possible to recreate these from the
<TT
CLASS="FILENAME"
>redboot.bin</TT
>
file, but requires the <SPAN
CLASS="APPLICATION"
>split_word.c</SPAN
> program in
<TT
CLASS="FILENAME"
>hal/sh/hs7729pci/<TT
CLASS="REPLACEABLE"
><I
>VERSION</I
></TT
>/misc</TT
>
to be built and executed with the <TT
CLASS="FILENAME"
>redboot.bin</TT
>
filename as sole argument.</P
><P
>After doing this it is advised that another ROM mode image of
RedBoot is programmed into the on-board flash, and that copy be used
for booting the board. This allows for software programmed updates of
RedBoot instead of having to reprogram the EPROMs.</P
><P
></P
><OL
TYPE="1"
><LI
><P
>Program the EPROMs with RedBoot. The .lo image should
go in socket M1 and the .hi image in socket M2.</P
></LI
><LI
><P
>Set switch SW1-6 to ON [boot from EPROM]</P
></LI
><LI
><P
>Follow the instructions under Flash management for
updating the flash copy of RedBoot, but force the flash destination
address with
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
><TT
CLASS="USERINPUT"
><B
>-f 0x80400000</B
></TT
></PRE
></TD
></TR
></TABLE
> due to setting of
the SW1-6 switch.</P
></LI
><LI
><P
>Set switch SW1-6 to OFF [boot from flash] and reboot the board. You
should now see the RedBoot banner. At this time you may want to issue
the command <B
CLASS="COMMAND"
>fis init</B
> to initialize
the flash table with the correct addresses.</P
></LI
></OL
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7413">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 HS7729PCI are:</P
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
>-b <TT
CLASS="REPLACEABLE"
><I
><addr></I
></TT
></DT
><DD
><P
>Parameter block address. This is normally the first
page of the kernel image and defaults to 0x8c101000</P
></DD
><DT
>-i <TT
CLASS="REPLACEABLE"
><I
><addr></I
></TT
></DT
><DD
><P
>Start address of initrd
image</P
></DD
><DT
>-j <TT
CLASS="REPLACEABLE"
><I
><size></I
></TT
></DT
><DD
><P
>Size of initrd image</P
></DD
><DT
>-c <TT
CLASS="REPLACEABLE"
><I
>"args"</I
></TT
></DT
><DD
><P
>Kernel arguments string</P
></DD
><DT
>-m <TT
CLASS="REPLACEABLE"
><I
><flags></I
></TT
></DT
><DD
><P
>Mount rdonly flags. If set to a non-zero value the
root partition will be mounted read-only.</P
></DD
><DT
>-f <TT
CLASS="REPLACEABLE"
><I
><flags></I
></TT
></DT
><DD
><P
>RAM disk flags. Should normally be 0x4000</P
></DD
><DT
>-r <TT
CLASS="REPLACEABLE"
><I
><device number></I
></TT
></DT
><DD
><P
>Root device specification. /dev/ram is 0x0101</P
></DD
><DT
>-l <TT
CLASS="REPLACEABLE"
><I
><type></I
></TT
></DT
><DD
><P
>Loader type</P
></DD
></DL
></DIV
><P
>Finally the kernel entry address can be specified as an optional
argument. The default is 0x8c102000</P
><P
>On the HS7729PCI, Linux expects to be loaded at address 0x8c101000 with
the entry point at 0x8c102000. This is configurable in the kernel
using the CONFIG_MEMORY_START option.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7462">Memory Maps</H2
><P
>RedBoot sets up the following memory map on the HS7729PCI board.<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>Physical Address Range Description
----------------------- -----------
0x80000000 - 0x803fffff Flash (MBM29LV160)
0x80400000 - 0x807fffff EPROM (M27C800)
0x82000000 - 0x82ffffff SRAM
0x89000000 - 0x89ffffff SRAM
0x8c000000 - 0x8fffffff SDRAM
0xa8000000 - 0xa800ffff SuperIO (FDC37C935A)
0xa8400000 - 0xa87fffff USB function (ML60851C)
0xa8800000 - 0xa8bfffff USB host (SL11HT)
0xa8c00000 - 0xa8c3ffff Switches
0xa8c40000 - 0xa8c7ffff LEDs
0xa8c80000 - 0xa8cfffff Interrupt controller
0xb0000000 - 0xb3ffffff PCI (SD0001)
0xb8000000 - 0xbbffffff PCMCIA (MaruBun)</PRE
></TD
></TR
></TABLE
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7466">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=hs7729pci
export ARCH_DIR=sh
export PLATFORM_DIR=hs7729pci</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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