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>ARM/Xscale Intel IQ80321</TITLE
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><DIV
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><H1
CLASS="SECT1"
><A
NAME="IQ80321">ARM/Xscale Intel IQ80321</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN6268">Overview</H2
><P
>RedBoot supports
the serial port and the built-in ethernet port for communication and downloads.
The default serial port settings are 115200,8,N,1. RedBoot also supports flash
management for the onboard 8MB flash.</P
><P
>The following RedBoot configurations are supported:
<DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN6278"><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="AEN6297">Initial Installation Method</H2
><P
>The board manufacturer provides a DOS application which is capable of
programming the flash over the PCI bus, and this is required for initial installations
of RedBoot. Please see the board manual for information on using this utility.
In general, the process involves programming the ROM mode RedBoot
image to flash. RedBoot should be programmed to flash address
0x00000000 using the DOS utility.</P
><P
>After booting the initial installation of RedBoot, this warning may
be printed: <TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>flash configuration checksum error or invalid key</PRE
></TD
></TR
></TABLE
>This is normal, and indicates that the flash must be configured
for use by RedBoot. Even if the above message is not printed, it may be a
good idea to reinitialize the flash anyway. Do this with the <B
CLASS="COMMAND"
>fis</B
> command: <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
... Unlock from 0xf07e0000-0xf0800000: .
... Erase from 0xf07e0000-0xf0800000: .
... Program from 0x01ddf000-0x01ddf400 at 0xf07e0000: .
... Lock from 0xf07e0000-0xf0800000: .</PRE
></TD
></TR
></TABLE
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN6306">Switch Settings</H2
><P
>The 80321 board is highly configurable through a number of switches and jumpers.
RedBoot makes some assumptions about board configuration and attention must be paid
to these assumptions for reliable RedBoot operation:
<P
></P
><UL
><LI
><P
>The onboard ethernet and the secondary slot may be placed in a
private space so that they are not seen by a PC BIOS. If the board is to be used
in a PC with BIOS, then the ethernet should be placed in this private space so that
RedBoot and the BIOS do not conflict.</P
></LI
><LI
><P
>RedBoot assumes that the board is plugged into a PC with BIOS. This
requires RedBoot to detect when the BIOS has configured the PCI-X secondary bus. If
the board is placed in a backplane, RedBoot will never see the BIOS configure the
secondary bus. To prevent this wait, set switch S7E1-3 to ON when using the board
in a backplane.</P
></LI
><LI
><P
>For the remaining switch settings, the following is a known good
configuration:
<DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN6316"><P
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>S1D1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>All OFF</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>S7E1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>7 is ON, all others OFF</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>S8E1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>2,3,5,6 are ON, all others OFF</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>S8E2</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>2,3 are ON, all others OFF</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>S9E1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>3 is ON, all others OFF</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>S4D1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>1,3 are ON, all others OFF</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>J9E1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>2,3 jumpered</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>J9F1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>2,3 jumpered</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>J3F1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Nothing jumpered</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>J3G1</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>2,3 jumpered</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
>J1G2</TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>2,3 jumpered</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></P
></LI
></UL
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN6352">LED Codes</H2
><P
>RedBoot uses the two digit LED display to indicate status during board
initialization. Possible codes are:</P
><P
CLASS="LITERALLAYOUT"
>LED Actions<br>
-------------------------------------------------------------<br>
Power-On/Reset<br>
88<br>
Set the CPSR<br>
Enable coprocessor access<br>
Drain write and fill buffer<br>
Setup PBIU chip selects<br>
A1<br>
Enable the Icache<br>
A2<br>
Move FLASH chip select from 0x0 to 0xF0000000<br>
Jump to new FLASH location<br>
A3<br>
Setup and enable the MMU<br>
A4<br>
I2C interface initialization<br>
90<br>
Wait for I2C initialization to complete<br>
91<br>
Send address (via I2C) to the DIMM<br>
92<br>
Wait for transmit complete<br>
93<br>
Read SDRAM PD data from DIMM<br>
94<br>
Read remainder of EEPROM data.<br>
An error will result in one of the following<br>
error codes on the LEDs:<br>
77 BAD EEPROM checksum<br>
55 I2C protocol error<br>
FF bank size error<br>
A5<br>
Setup DDR memory interface<br>
A6<br>
Enable branch target buffer<br>
Drain the write & fill buffers<br>
Flush Icache, Dcache and BTB<br>
Flush instuction and data TLBs<br>
Drain the write & fill buffers<br>
SL<br>
ECC Scrub Loop<br>
SE<br>
A7<br>
Clean, drain, flush the main Dcache<br>
A8<br>
Clean, drain, flush the mini Dcache<br>
Flush Dcache<br>
Drain the write & fill buffers<br>
A9<br>
Enable ECC<br>
AA<br>
Save SDRAM size<br>
Move MMU tables into RAM<br>
AB<br>
Clean, drain, flush the main Dcache<br>
Clean, drain, flush the mini Dcache<br>
Drain the write & fill buffers<br>
AC<br>
Set the TTB register to DRAM mmu_table<br>
AD<br>
Set mode to IRQ mode<br>
A7<br>
Move SWI & Undefined "vectors" to RAM (at 0x0)<br>
A6<br>
Switch to supervisor mode<br>
A5<br>
Move remaining "vectors" to RAM (at 0x0)<br>
A4<br>
Copy DATA to RAM<br>
Initialize interrupt exception environment<br>
Initialize stack<br>
Clear BSS section<br>
A3<br>
Call platform specific hardware initialization<br>
A2<br>
Run through static constructors<br>
A1<br>
Start up the eCos kernel or RedBoot</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN6356">Special RedBoot Commands</H2
><P
>A special RedBoot command, <B
CLASS="COMMAND"
>diag</B
>, is used to
access a set of hardware diagnostics. To access the diagnostic menu,
enter <B
CLASS="COMMAND"
>diag</B
> at the RedBoot prompt:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <TT
CLASS="USERINPUT"
><B
>diag</B
></TT
>
Entering Hardware Diagnostics - Disabling Data Cache!
IQ80321 Hardware Tests
1 - Memory Tests
2 - Repeating Memory Tests
3 - Repeat-On-Fail Memory Tests
4 - Rotary Switch S1 Test
5 - 7 Segment LED Tests
6 - i82544 Ethernet Configuration
7 - Baterry Status Test
8 - Battery Backup SDRAM Memory Test
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