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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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<HTML
><HEAD
><TITLE
>MIPS/RM7000 PMC-Sierra Ocelot</TITLE
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><BODY
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>eCos Reference Manual</TH
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><A
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>Prev</A
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><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="OCELOT">MIPS/RM7000 PMC-Sierra Ocelot</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN6944">Overview</H2
><P
>RedBoot
uses the front facing serial port. The default serial port settings are 38400,8,N,1.
RedBoot also supports ethernet. Management of onboard flash is also supported.</P
><P
>The following RedBoot configurations are supported:
 
      <DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN6954"><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="AEN6973">Additional commands</H2
><P
>The <B
CLASS="COMMAND"
>exec</B
> command which allows the
loading and execution of Linux kernels, is supported for this architecture
 (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 MIPS boards are:</P
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
>-b <TT
CLASS="REPLACEABLE"
><I
>&lt;addr&#62;</I
></TT
></DT
><DD
><P
>Location to store command line and environment passed to kernel</P
></DD
><DT
>-w <TT
CLASS="REPLACEABLE"
><I
>&lt;time&#62;</I
></TT
></DT
><DD
><P
>Wait time in seconds before starting kernel</P
></DD
><DT
>-c <TT
CLASS="REPLACEABLE"
><I
>"params"</I
></TT
></DT
><DD
><P
>Parameters passed to kernel</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>&lt;addr&#62;</I
></TT
></DT
><DD
><P
>Kernel entry point, defaulting to the entry point of the last image
loaded</P
></DD
></DL
></DIV
><P
>Linux kernels on MIPS platforms expect the entry point to be called with arguments
in the registers equivalent to a C call with prototype:
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void Linux(int argc, char **argv, char **envp);</PRE
></TD
></TR
></TABLE
></P
><P
>RedBoot will place the appropriate data at the offset specified by the
<TT
CLASS="PARAMETER"
><I
>-b</I
></TT
> parameter, or by default at address 0x80080000, and will set the
arguments accordingly when calling into the kernel.</P
><P
>The default entry point, if no image with explicit entry point has been loaded and
none is specified, is 0x80000750.</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7005">Memory Maps</H2
><P
>RedBoot sets up the following memory map on the Ocelot board. </P
><P
>Note that these addresses are accessed through kseg0/1 and thus translate
to the actual address range 0x80000000-0xbfffffff, depending on the need for
caching/non-caching access to the bus.<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 - 0x0fffffff SDRAM
0x10000000 - 0x10ffffff PCI I/O space
0x12000000 - 0x13ffffff PCI Memory space
0x14000000 - 0x1400ffff Galileo system controller
0x1c000000 - 0x1c0000ff PLD (board logic)
0x1fc00000 - 0x1fc7ffff flash</PRE
></TD
></TR
></TABLE
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN7013">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=ocelot
export ARCH_DIR=mips
export PLATFORM_DIR=rm7000/ocelot</PRE
></TD
></TR
></TABLE
></P
><P
>The names of configuration files are listed above with the
description of the associated modes.</P
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
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ACCESSKEY="P"
>Prev</A
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VALIGN="top"
><A
HREF="ecos-ref.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="vrc4375.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>MIPS/MIPS32(CoreLV 4Kc)+MIPS64(CoreLV 5Kc) Malta Board</TD
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WIDTH="34%"
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>

Line No.	Rev	Author	Line
1	28	unneback	`<!-- Copyright (C) 2003 Red Hat, Inc. -->`
2			`<!-- This material may be distributed only subject to the terms -->`
3			`<!-- and conditions set forth in the Open Publication License, v1.0 -->`
4			`<!-- or later (the latest version is presently available at -->`
5			`<!-- http://www.opencontent.org/openpub/). -->`
6			`<!-- Distribution of the work or derivative of the work in any -->`
7			`<!-- standard (paper) book form is prohibited unless prior -->`
8			`<!-- permission is obtained from the copyright holder. -->`
9			`<HTML`
10			`><HEAD`
11			`><TITLE`
12			`>MIPS/RM7000 PMC-Sierra Ocelot</TITLE`
13			`><meta name="MSSmartTagsPreventParsing" content="TRUE">`
14			`<META`
15			`NAME="GENERATOR"`
16			`CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+`
17			`"><LINK`
18			`REL="HOME"`
19			`TITLE="eCos Reference Manual"`
20			`HREF="ecos-ref.html"><LINK`
21			`REL="UP"`
22			`TITLE="Installation and Testing"`
23			`HREF="installation-and-testing.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="MIPS/MIPS32(CoreLV 4Kc)+MIPS64(CoreLV 5Kc) Malta Board "`
26			`HREF="malta.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="MIPS/VR4375 NEC DDB-VRC4375"`
29			`HREF="vrc4375.html"></HEAD`
30			`><BODY`
31			`CLASS="SECT1"`
32			`BGCOLOR="#FFFFFF"`
33			`TEXT="#000000"`
34			`LINK="#0000FF"`
35			`VLINK="#840084"`
36			`ALINK="#0000FF"`
37			`><DIV`
38			`CLASS="NAVHEADER"`
39			`><TABLE`
40			`SUMMARY="Header navigation table"`
41			`WIDTH="100%"`
42			`BORDER="0"`
43			`CELLPADDING="0"`
44			`CELLSPACING="0"`
45			`><TR`
46			`><TH`
47			`COLSPAN="3"`
48			`ALIGN="center"`
49			`>eCos Reference Manual</TH`
50			`></TR`
51			`><TR`
52			`><TD`
53			`WIDTH="10%"`
54			`ALIGN="left"`
55			`VALIGN="bottom"`
56			`><A`
57			`HREF="malta.html"`
58			`ACCESSKEY="P"`
59			`>Prev</A`
60			`></TD`
61			`><TD`
62			`WIDTH="80%"`
63			`ALIGN="center"`
64			`VALIGN="bottom"`
65			`>Chapter 5. Installation and Testing</TD`
66			`><TD`
67			`WIDTH="10%"`
68			`ALIGN="right"`
69			`VALIGN="bottom"`
70			`><A`
71			`HREF="vrc4375.html"`
72			`ACCESSKEY="N"`
73			`>Next</A`
74			`></TD`
75			`></TR`
76			`></TABLE`
77			`><HR`
78			`ALIGN="LEFT"`
79			`WIDTH="100%"></DIV`
80			`><DIV`
81			`CLASS="SECT1"`
82			`><H1`
83			`CLASS="SECT1"`
84			`><A`
85			`NAME="OCELOT">MIPS/RM7000 PMC-Sierra Ocelot</H1`
86			`><DIV`
87			`CLASS="SECT2"`
88			`><H2`
89			`CLASS="SECT2"`
90			`><A`
91			`NAME="AEN6944">Overview</H2`
92			`><P`
93			`>RedBoot`
94			`uses the front facing serial port. The default serial port settings are 38400,8,N,1.`
95			`RedBoot also supports ethernet. Management of onboard flash is also supported.</P`
96			`><P`
97			`>The following RedBoot configurations are supported:`
98
99			`<DIV`
100			`CLASS="INFORMALTABLE"`
101			`><A`
102			`NAME="AEN6954"><P`
103			`></P`
104			`><TABLE`
105			`BORDER="1"`
106			`CLASS="CALSTABLE"`
107			`><THEAD`
108			`><TR`
109			`><TH`
110			`ALIGN="LEFT"`
111			`VALIGN="TOP"`
112			`>Configuration</TH`
113			`><TH`
114			`ALIGN="LEFT"`
115			`VALIGN="TOP"`
116			`>Mode</TH`
117			`><TH`
118			`ALIGN="LEFT"`
119			`VALIGN="TOP"`
120			`>Description</TH`
121			`><TH`
122			`ALIGN="LEFT"`
123			`VALIGN="TOP"`
124			`>File</TH`
125			`></TR`
126			`></THEAD`
127			`><TBODY`
128			`><TR`
129			`><TD`
130			`ALIGN="LEFT"`
131			`VALIGN="TOP"`
132			`>ROM</TD`
133			`><TD`
134			`ALIGN="LEFT"`
135			`VALIGN="TOP"`
136			`>[ROM]</TD`
137			`><TD`
138			`ALIGN="LEFT"`
139			`VALIGN="TOP"`
140			`>RedBoot running from the board's flash boot`
141			`sector.</TD`
142			`><TD`
143			`ALIGN="LEFT"`
144			`VALIGN="TOP"`
145			`>redboot_ROM.ecm</TD`
146			`></TR`
147			`><TR`
148			`><TD`
149			`ALIGN="LEFT"`
150			`VALIGN="TOP"`
151			`>RAM</TD`
152			`><TD`
153			`ALIGN="LEFT"`
154			`VALIGN="TOP"`
155			`>[RAM]</TD`
156			`><TD`
157			`ALIGN="LEFT"`
158			`VALIGN="TOP"`
159			`>RedBoot running from RAM with RedBoot in the`
160			`flash boot sector.</TD`
161			`><TD`
162			`ALIGN="LEFT"`
163			`VALIGN="TOP"`
164			`>redboot_RAM.ecm</TD`
165			`></TR`
166			`></TBODY`
167			`></TABLE`
168			`><P`
169			`></P`
170			`></DIV`
171			`></P`
172			`></DIV`
173			`><DIV`
174			`CLASS="SECT2"`
175			`><H2`
176			`CLASS="SECT2"`
177			`><A`
178			`NAME="AEN6973">Additional commands</H2`
179			`><P`
180			`>The <B`
181			`CLASS="COMMAND"`
182			`>exec</B`
183			`> command which allows the`
184			`loading and execution of Linux kernels, is supported for this architecture`
185			`(see <A`
186			`HREF="executing-programs.html"`
187			`>the Section called <I`
188			`>Executing Programs from RedBoot</I`
189			`> in Chapter 2</A`
190			`>). The`
191			`<B`
192			`CLASS="COMMAND"`
193			`>exec</B`
194			`> parameters used for MIPS boards are:</P`
195			`><P`
196			`></P`
197			`><DIV`
198			`CLASS="VARIABLELIST"`
199			`><DL`
200			`><DT`
201			`>-b <TT`
202			`CLASS="REPLACEABLE"`
203			`><I`
204			`><addr></I`
205			`></TT`
206			`></DT`
207			`><DD`
208			`><P`
209			`>Location to store command line and environment passed to kernel</P`
210			`></DD`
211			`><DT`
212			`>-w <TT`
213			`CLASS="REPLACEABLE"`
214			`><I`
215			`><time></I`
216			`></TT`
217			`></DT`
218			`><DD`
219			`><P`
220			`>Wait time in seconds before starting kernel</P`
221			`></DD`
222			`><DT`
223			`>-c <TT`
224			`CLASS="REPLACEABLE"`
225			`><I`
226			`>"params"</I`
227			`></TT`
228			`></DT`
229			`><DD`
230			`><P`
231			`>Parameters passed to kernel</P`
232			`></DD`
233			`><DT`
234			`><TT`
235			`CLASS="REPLACEABLE"`
236			`><I`
237			`><addr></I`
238			`></TT`
239			`></DT`
240			`><DD`
241			`><P`
242			`>Kernel entry point, defaulting to the entry point of the last image`
243			`loaded</P`
244			`></DD`
245			`></DL`
246			`></DIV`
247			`><P`
248			`>Linux kernels on MIPS platforms expect the entry point to be called with arguments`
249			`in the registers equivalent to a C call with prototype:`
250			`<TABLE`
251			`BORDER="5"`
252			`BGCOLOR="#E0E0F0"`
253			`WIDTH="70%"`
254			`><TR`
255			`><TD`
256			`><PRE`
257			`CLASS="PROGRAMLISTING"`
258			`>void Linux(int argc, char argv, char envp);</PRE`
259			`></TD`
260			`></TR`
261			`></TABLE`
262			`></P`
263			`><P`
264			`>RedBoot will place the appropriate data at the offset specified by the`
265			`<TT`
266			`CLASS="PARAMETER"`
267			`><I`
268			`>-b</I`
269			`></TT`
270			`> parameter, or by default at address 0x80080000, and will set the`
271			`arguments accordingly when calling into the kernel.</P`
272			`><P`
273			`>The default entry point, if no image with explicit entry point has been loaded and`
274			`none is specified, is 0x80000750.</P`
275			`></DIV`
276			`><DIV`
277			`CLASS="SECT2"`
278			`><H2`
279			`CLASS="SECT2"`
280			`><A`
281			`NAME="AEN7005">Memory Maps</H2`
282			`><P`
283			`>RedBoot sets up the following memory map on the Ocelot board. </P`
284			`><P`
285			`>Note that these addresses are accessed through kseg0/1 and thus translate`
286			`to the actual address range 0x80000000-0xbfffffff, depending on the need for`
287			`caching/non-caching access to the bus.<DIV`
288			`CLASS="NOTE"`
289			`><BLOCKQUOTE`
290			`CLASS="NOTE"`
291			`><P`
292			`><B`
293			`>NOTE: </B`
294			`>The virtual memory maps in this section use a C and B column to indicate`
295			`whether or not the region is cached (C) or buffered (B).</P`
296			`></BLOCKQUOTE`
297			`></DIV`
298			`><TABLE`
299			`BORDER="5"`
300			`BGCOLOR="#E0E0F0"`
301			`WIDTH="70%"`
302			`><TR`
303			`><TD`
304			`><PRE`
305			`CLASS="PROGRAMLISTING"`
306			`>Physical Address Range Description`
307			`----------------------- -----------`
308			`0x00000000 - 0x0fffffff SDRAM`
309			`0x10000000 - 0x10ffffff PCI I/O space`
310			`0x12000000 - 0x13ffffff PCI Memory space`
311			`0x14000000 - 0x1400ffff Galileo system controller`
312			`0x1c000000 - 0x1c0000ff PLD (board logic)`
313			`0x1fc00000 - 0x1fc7ffff flash</PRE`
314			`></TD`
315			`></TR`
316			`></TABLE`
317			`></P`
318			`></DIV`
319			`><DIV`
320			`CLASS="SECT2"`
321			`><H2`
322			`CLASS="SECT2"`
323			`><A`
324			`NAME="AEN7013">Rebuilding RedBoot</H2`
325			`><P`
326			`>These shell variables provide the platform-specific information`
327			`needed for building RedBoot according to the procedure described in`
328			`<A`
329			`HREF="rebuilding-redboot.html"`
330			`>Chapter 3</A`
331			`>:`
332			`<TABLE`
333			`BORDER="5"`
334			`BGCOLOR="#E0E0F0"`
335			`WIDTH="70%"`
336			`><TR`
337			`><TD`
338			`><PRE`
339			`CLASS="PROGRAMLISTING"`
340			`>export TARGET=ocelot`
341			`export ARCH_DIR=mips`
342			`export PLATFORM_DIR=rm7000/ocelot</PRE`
343			`></TD`
344			`></TR`
345			`></TABLE`
346			`></P`
347			`><P`
348			`>The names of configuration files are listed above with the`
349			`description of the associated modes.</P`
350			`></DIV`
351			`></DIV`
352			`><DIV`
353			`CLASS="NAVFOOTER"`
354			`><HR`
355			`ALIGN="LEFT"`
356			`WIDTH="100%"><TABLE`
357			`SUMMARY="Footer navigation table"`
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364			`WIDTH="33%"`
365			`ALIGN="left"`
366			`VALIGN="top"`
367			`><A`
368			`HREF="malta.html"`
369			`ACCESSKEY="P"`
370			`>Prev</A`
371			`></TD`
372			`><TD`
373			`WIDTH="34%"`
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378			`ACCESSKEY="H"`
379			`>Home</A`
380			`></TD`
381			`><TD`
382			`WIDTH="33%"`
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388			`>Next</A`
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391			`><TR`
392			`><TD`
393			`WIDTH="33%"`
394			`ALIGN="left"`
395			`VALIGN="top"`
396			`>MIPS/MIPS32(CoreLV 4Kc)+MIPS64(CoreLV 5Kc) Malta Board</TD`
397			`><TD`
398			`WIDTH="34%"`
399			`ALIGN="center"`
400			`VALIGN="top"`
401			`><A`
402			`HREF="installation-and-testing.html"`
403			`ACCESSKEY="U"`
404			`>Up</A`
405			`></TD`
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410			`>MIPS/VR4375 NEC DDB-VRC4375</TD`
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