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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
<!-- This material may be distributed only subject to the terms      -->
<!-- and conditions set forth in the Open Publication License, v1.0  -->
<!-- or later (the latest version is presently available at          -->
<!-- http://www.opencontent.org/openpub/).                           -->
<!-- Distribution of the work or derivative of the work in any       -->
<!-- standard (paper) book form is prohibited unless prior           -->
<!-- permission is obtained from the copyright holder.               -->
<HTML
><HEAD
><TITLE
>fis unlock</TITLE
><meta name="MSSmartTagsPreventParsing" content="TRUE">
<META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="eCos Reference Manual"
HREF="ecos-ref.html"><LINK
REL="UP"
TITLE="Flash Image System (FIS)"
HREF="flash-image-system.html"><LINK
REL="PREVIOUS"
TITLE="fis lock"
HREF="fis-lock-command.html"><LINK
REL="NEXT"
TITLE="fis erase"
HREF="fis-erase-command.html"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>eCos Reference Manual</TH
></TR
><TR
><TD
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><A
HREF="fis-lock-command.html"
ACCESSKEY="P"
>Prev</A
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><TD
WIDTH="80%"
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VALIGN="bottom"
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HREF="fis-erase-command.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="FIS-UNLOCK-COMMAND">fis unlock</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN4257"
></A
><H2
>Name</H2
>fis unlock&nbsp;--&nbsp;Unlock flash area</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN4260"><H2
>Synopsis</H2
><P
><B
CLASS="COMMAND"
>fis unlock</B
>  {-f <TT
CLASS="REPLACEABLE"
><I
>flash_address</I
></TT
>} {-l <TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
>}</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4267"
></A
><H2
>Arguments</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN4269"><P
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><THEAD
><TR
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Name</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Type</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Description</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Default</TH
></TR
></THEAD
><TBODY
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="REPLACEABLE"
><I
>flash_address</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Number</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Address of area to be unlocked.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Number</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Length of area to be unlocked.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4294"
></A
><H2
>Description</H2
><P
>This command is used to unlock a portion of flash memory forcibly, allowing
it to be updated. It must be issued for regions which have been locked before
the FIS can reuse those portions of flash.</P
><DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>Note: </B
>Some flash devices power up in locked state and always need to
be manually unlocked before they can be written to.</P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4299"
></A
><H2
>Examples</H2
><P
>Unlock an area of the flash
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>fis unlock -f 0xa0040000 -l 0x20000</B
></TT
>
... Unlock from 0xa0040000-0xa0060000: .</PRE
></TD
></TR
></TABLE
></P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="fis-lock-command.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="ecos-ref.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="fis-erase-command.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>fis lock</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="flash-image-system.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>fis erase</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>

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			`>fis unlock</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="Flash Image System (FIS)"`
23			`HREF="flash-image-system.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="fis lock"`
26			`HREF="fis-lock-command.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="fis erase"`
29			`HREF="fis-erase-command.html"></HEAD`
30			`><BODY`
31			`CLASS="REFENTRY"`
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="fis-lock-command.html"`
58			`ACCESSKEY="P"`
59			`>Prev</A`
60			`></TD`
61			`><TD`
62			`WIDTH="80%"`
63			`ALIGN="center"`
64			`VALIGN="bottom"`
65			`></TD`
66			`><TD`
67			`WIDTH="10%"`
68			`ALIGN="right"`
69			`VALIGN="bottom"`
70			`><A`
71			`HREF="fis-erase-command.html"`
72			`ACCESSKEY="N"`
73			`>Next</A`
74			`></TD`
75			`></TR`
76			`></TABLE`
77			`><HR`
78			`ALIGN="LEFT"`
79			`WIDTH="100%"></DIV`
80			`><H1`
81			`><A`
82			`NAME="FIS-UNLOCK-COMMAND">fis unlock</H1`
83			`><DIV`
84			`CLASS="REFNAMEDIV"`
85			`><A`
86			`NAME="AEN4257"`
87			`></A`
88			`><H2`
89			`>Name</H2`
90			`>fis unlock -- Unlock flash area</DIV`
91			`><DIV`
92			`CLASS="REFSYNOPSISDIV"`
93			`><A`
94			`NAME="AEN4260"><H2`
95			`>Synopsis</H2`
96			`><P`
97			`><B`
98			`CLASS="COMMAND"`
99			`>fis unlock</B`
100			`> {-f <TT`
101			`CLASS="REPLACEABLE"`
102			`><I`
103			`>flash_address</I`
104			`></TT`
105			`>} {-l <TT`
106			`CLASS="REPLACEABLE"`
107			`><I`
108			`>length</I`
109			`></TT`
110			`>}</P`
111			`></DIV`
112			`><DIV`
113			`CLASS="REFSECT1"`
114			`><A`
115			`NAME="AEN4267"`
116			`></A`
117			`><H2`
118			`>Arguments</H2`
119			`><DIV`
120			`CLASS="INFORMALTABLE"`
121			`><A`
122			`NAME="AEN4269"><P`
123			`></P`
124			`><TABLE`
125			`BORDER="1"`
126			`CLASS="CALSTABLE"`
127			`><THEAD`
128			`><TR`
129			`><TH`
130			`WIDTH="25%"`
131			`ALIGN="LEFT"`
132			`VALIGN="TOP"`
133			`>Name</TH`
134			`><TH`
135			`WIDTH="25%"`
136			`ALIGN="LEFT"`
137			`VALIGN="TOP"`
138			`>Type</TH`
139			`><TH`
140			`WIDTH="25%"`
141			`ALIGN="LEFT"`
142			`VALIGN="TOP"`
143			`>Description</TH`
144			`><TH`
145			`WIDTH="25%"`
146			`ALIGN="LEFT"`
147			`VALIGN="TOP"`
148			`>Default</TH`
149			`></TR`
150			`></THEAD`
151			`><TBODY`
152			`><TR`
153			`><TD`
154			`WIDTH="25%"`
155			`ALIGN="LEFT"`
156			`VALIGN="TOP"`
157			`><TT`
158			`CLASS="REPLACEABLE"`
159			`><I`
160			`>flash_address</I`
161			`></TT`
162			`></TD`
163			`><TD`
164			`WIDTH="25%"`
165			`ALIGN="LEFT"`
166			`VALIGN="TOP"`
167			`>Number</TD`
168			`><TD`
169			`WIDTH="25%"`
170			`ALIGN="LEFT"`
171			`VALIGN="TOP"`
172			`>Address of area to be unlocked.</TD`
173			`><TD`
174			`WIDTH="25%"`
175			`ALIGN="LEFT"`
176			`VALIGN="TOP"`
177			`> </TD`
178			`></TR`
179			`><TR`
180			`><TD`
181			`WIDTH="25%"`
182			`ALIGN="LEFT"`
183			`VALIGN="TOP"`
184			`><TT`
185			`CLASS="REPLACEABLE"`
186			`><I`
187			`>length</I`
188			`></TT`
189			`></TD`
190			`><TD`
191			`WIDTH="25%"`
192			`ALIGN="LEFT"`
193			`VALIGN="TOP"`
194			`>Number</TD`
195			`><TD`
196			`WIDTH="25%"`
197			`ALIGN="LEFT"`
198			`VALIGN="TOP"`
199			`>Length of area to be unlocked.</TD`
200			`><TD`
201			`WIDTH="25%"`
202			`ALIGN="LEFT"`
203			`VALIGN="TOP"`
204			`> </TD`
205			`></TR`
206			`></TBODY`
207			`></TABLE`
208			`><P`
209			`></P`
210			`></DIV`
211			`></DIV`
212			`><DIV`
213			`CLASS="REFSECT1"`
214			`><A`
215			`NAME="AEN4294"`
216			`></A`
217			`><H2`
218			`>Description</H2`
219			`><P`
220			`>This command is used to unlock a portion of flash memory forcibly, allowing`
221			`it to be updated. It must be issued for regions which have been locked before`
222			`the FIS can reuse those portions of flash.</P`
223			`><DIV`
224			`CLASS="NOTE"`
225			`><BLOCKQUOTE`
226			`CLASS="NOTE"`
227			`><P`
228			`><B`
229			`>Note: </B`
230			`>Some flash devices power up in locked state and always need to`
231			`be manually unlocked before they can be written to.</P`
232			`></BLOCKQUOTE`
233			`></DIV`
234			`></DIV`
235			`><DIV`
236			`CLASS="REFSECT1"`
237			`><A`
238			`NAME="AEN4299"`
239			`></A`
240			`><H2`
241			`>Examples</H2`
242			`><P`
243			`>Unlock an area of the flash`
244			`<TABLE`
245			`BORDER="5"`
246			`BGCOLOR="#E0E0F0"`
247			`WIDTH="70%"`
248			`><TR`
249			`><TD`
250			`><PRE`
251			`CLASS="SCREEN"`
252			`>RedBoot> <TT`
253			`CLASS="USERINPUT"`
254			`><B`
255			`>fis unlock -f 0xa0040000 -l 0x20000</B`
256			`></TT`
257			`>`
258			`... Unlock from 0xa0040000-0xa0060000: .</PRE`
259			`></TD`
260			`></TR`
261			`></TABLE`
262			`></P`
263			`></DIV`
264			`><DIV`
265			`CLASS="NAVFOOTER"`
266			`><HR`
267			`ALIGN="LEFT"`
268			`WIDTH="100%"><TABLE`
269			`SUMMARY="Footer navigation table"`
270			`WIDTH="100%"`
271			`BORDER="0"`
272			`CELLPADDING="0"`
273			`CELLSPACING="0"`
274			`><TR`
275			`><TD`
276			`WIDTH="33%"`
277			`ALIGN="left"`
278			`VALIGN="top"`
279			`><A`
280			`HREF="fis-lock-command.html"`
281			`ACCESSKEY="P"`
282			`>Prev</A`
283			`></TD`
284			`><TD`
285			`WIDTH="34%"`
286			`ALIGN="center"`
287			`VALIGN="top"`
288			`><A`
289			`HREF="ecos-ref.html"`
290			`ACCESSKEY="H"`
291			`>Home</A`
292			`></TD`
293			`><TD`
294			`WIDTH="33%"`
295			`ALIGN="right"`
296			`VALIGN="top"`
297			`><A`
298			`HREF="fis-erase-command.html"`
299			`ACCESSKEY="N"`
300			`>Next</A`
301			`></TD`
302			`></TR`
303			`><TR`
304			`><TD`
305			`WIDTH="33%"`
306			`ALIGN="left"`
307			`VALIGN="top"`
308			`>fis lock</TD`
309			`><TD`
310			`WIDTH="34%"`
311			`ALIGN="center"`
312			`VALIGN="top"`
313			`><A`
314			`HREF="flash-image-system.html"`
315			`ACCESSKEY="U"`
316			`>Up</A`
317			`></TD`
318			`><TD`
319			`WIDTH="33%"`
320			`ALIGN="right"`
321			`VALIGN="top"`
322			`>fis erase</TD`
323			`></TR`
324			`></TABLE`
325			`></DIV`
326			`></BODY`
327			`></HTML`
328			`>`

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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [doc/] [html/] [ref/] [fis-unlock-command.html] - Blame information for rev 842