blob: 2d9760d0800319b67d349d7faef85f97b624c5ef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>System Partition Header File partition_<device>.h</title>
<title>CMSIS-Core (Cortex-M): System Partition Header File partition_<device>.h</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="cmsis.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script type="text/javascript" src="printComponentTabs.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
$(window).load(resizeHeight);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 46px;">
<td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
<td style="padding-left: 0.5em;">
<div id="projectname">CMSIS-Core (Cortex-M)
 <span id="projectnumber">Version 5.3.0</span>
</div>
<div id="projectbrief">CMSIS-Core support for Cortex-M processor-based devices</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<div id="CMSISnav" class="tabs1">
<ul class="tablist">
<script type="text/javascript">
<!--
writeComponentTabs.call(this);
//-->
</script>
</ul>
</div>
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li class="current"><a href="pages.html"><span>Usage and Description</span></a></li>
<li><a href="modules.html"><span>Reference</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('partition_h_pg.html','');});
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Pages</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="headertitle">
<div class="title">System Partition Header File partition_<device>.h </div> </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><p>The <a class="el" href="partition_h_pg.html">System Partition Header File partition_<device>.h</a> contains the initial setup of the TrustZone hardware in an Armv8-M system. The function <a class="el" href="group__sau__trustzone__functions.html#ga6093bc5939ea8924fbcfdffb8f0553f1">TZ_SAU_Setup</a> is call from <a class="el" href="group__system__init__gr.html#ga93f514700ccf00d08dbdcff7f1224eb2">SystemInit</a> and uses the settings in this file to initialize the Secure Attribute Unit (SAU) and define non-secure interrupts (register NVIC_INIT_ITNS). The following initializations are performed:</p>
<ul>
<li><a class="el" href="partition_h_pg.html#sau_ctrlregister_sec">SAU CTRL register settings</a> provides settings for the SAU CTRL register.</li>
<li><a class="el" href="partition_h_pg.html#sau_regions_sect">Configuration of the SAU Address Regions</a> provides configuration of the SAU Address Regions.</li>
<li><a class="el" href="partition_h_pg.html#sau_sleepexception_sec">Configuration of Sleep and Exception behaviour</a> provides device-specific deepsleep and exception settings.</li>
<li><a class="el" href="partition_h_pg.html#sau_interrupttarget_sec">Configuration of Interrupt Target settings</a> provides device-specific interrupt target settings.</li>
</ul>
<h1><a class="anchor" id="sau_ctrlregister_sec"></a>
SAU CTRL register settings</h1>
<table class="cmtable">
<tr>
<th>#define </th><th>Value Range </th><th>Default </th><th>Description </th></tr>
<tr>
<td>SAU_INIT_CTRL </td><td>0 .. 1 </td><td>0 </td><td>Initialize SAU CTRL register or not<ul>
<li>0: do not initialize SAU CTRL register</li>
<li>1: initialize SAU CTRL register </li>
</ul>
</td></tr>
<tr>
<td>SAU_INIT_CTRL_ENABLE </td><td>0 .. 1 </td><td>0 </td><td>enable/disable the SAU<ul>
<li>0: disable SAU</li>
<li>1: enable SAU </li>
</ul>
</td></tr>
<tr>
<td>SAU_INIT_CTRL_ALLNS </td><td>0 .. 1 </td><td>0 </td><td>value for SAU_CTRL register bit ALLNS<ul>
<li>0: all Memory is Secure</li>
<li>1: all Memory is Non-Secure </li>
</ul>
</td></tr>
</table>
<h1><a class="anchor" id="sau_regions_sect"></a>
Configuration of the SAU Address Regions</h1>
<table class="cmtable">
<tr>
<th>#define </th><th>Value Range </th><th>Default </th><th>Description </th></tr>
<tr>
<td>SAU_REGIONS_MAX </td><td>0 .. tbd </td><td>8 </td><td>maximum number of SAU regions </td></tr>
<tr>
<td>SAU_INIT_REGION<number> </td><td>0 .. 1 </td><td>0 </td><td>initialize SAU region or not<ul>
<li>0: do not initialize SAU region</li>
<li>1: initialize SAU region </li>
</ul>
</td></tr>
<tr>
<td>SAU_INIT_START<number> </td><td>0x00000000 .. 0xFFFFFFE0<br/>
[in steps of 32] </td><td>0x00000000 </td><td>region start address </td></tr>
<tr>
<td>SAU_INIT_END<number> </td><td>0x00000000 .. 0xFFFFFFE0<br/>
[in steps of 32] </td><td>0x00000000 </td><td>region start address </td></tr>
<tr>
<td>SAU_INIT_NSC<number> </td><td>0 .. 1 </td><td>0 </td><td>SAU region attribute<ul>
<li>0: Non-Secure</li>
<li>1: Secure, Non-Secure callable </li>
</ul>
</td></tr>
</table>
<p>The range of <number> is from 0 .. SAU_REGIONS_MAX. A set of these macros must exist for each <number>.</p>
<p>The following example shows a set of SAU region macros.</p>
<div class="fragment"><div class="line"><span class="preprocessor">#define SAU_REGIONS_MAX 8 </span><span class="comment">/* Max. number of SAU regions */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION0 1</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START0 0x00000000 </span><span class="comment">/* start address of SAU region 0 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END0 0x001FFFE0 </span><span class="comment">/* end address of SAU region 0 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_NSC0 1</span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION1 1</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START1 0x00200000 </span><span class="comment">/* start address of SAU region 1 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END1 0x003FFFE0 </span><span class="comment">/* end address of SAU region 1 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_NSC1 0</span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION2 1</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START2 0x20200000 </span><span class="comment">/* start address of SAU region 2 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END2 0x203FFFE0 </span><span class="comment">/* end address of SAU region 2 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_NSC2 0</span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION3 1</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START3 0x40000000 </span><span class="comment">/* start address of SAU region 3 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END3 0x40040000 </span><span class="comment">/* end address of SAU region 3 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_NSC3 0</span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION4 0</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START4 0x00000000 </span><span class="comment">/* start address of SAU region 4 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END4 0x00000000 </span><span class="comment">/* end address of SAU region 4 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_NSC4 0</span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION5 0</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START5 0x00000000 </span><span class="comment">/* start address of SAU region 5 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END5 0x00000000 </span><span class="comment">/* end address of SAU region 5 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_NSC5 0</span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION6 0</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START6 0x00000000 </span><span class="comment">/* start address of SAU region 6 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END6 0x00000000 </span><span class="comment">/* end address of SAU region 6 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_NSC6 0</span></div>
<div class="line"><span class="preprocessor"></span> </div>
<div class="line"><span class="preprocessor">#define SAU_INIT_REGION7 0</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_START7 0x00000000 </span><span class="comment">/* start address of SAU region 7 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SAU_INIT_END7 0x00000000 </span><span class="comment">/* end address of SAU region 7 */</span><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor">#define SAU_INIT_NSC7 0</span></div>
</div><!-- fragment --><h1><a class="anchor" id="sau_sleepexception_sec"></a>
Configuration of Sleep and Exception behaviour</h1>
<table class="cmtable">
<tr>
<th>#define </th><th>Value Range </th><th>Default </th><th>Description </th></tr>
<tr>
<td>CSR_INIT_DEEPSLEEPS </td><td>0 .. 1 </td><td>0 </td><td>value for SCB_CSR register bit DEEPSLEEPS<ul>
<li>0: Deep Sleep can be enabled by Secure and Non-Secure state</li>
<li>1: Deep Sleep can be enabled by Secure state only </li>
</ul>
</td></tr>
<tr>
<td>AIRCR_INIT_SYSRESETREQS </td><td>0 .. 1 </td><td>0 </td><td>value for SCB_AIRCR register bit SYSRESETREQS<ul>
<li>0: System reset request accessible from Secure and Non-Secure state</li>
<li>1: System reset request accessible from Secure state only </li>
</ul>
</td></tr>
<tr>
<td>AIRCR_INIT_PRIS </td><td>0 .. 1 </td><td>0 </td><td>value for SCB_AIRCR register bit PRIS<ul>
<li>0: Priority of Non-Secure exceptions is Not altered</li>
<li>1: Priority of Non-Secure exceptions is Lowered to 0x80-0xFF </li>
</ul>
</td></tr>
<tr>
<td>AIRCR_INIT_BFHFNMINS </td><td>0 .. 1 </td><td>0 </td><td>value for SCB_AIRCR register bit BFHFNMINS<ul>
<li>0: BusFault, HardFault, and NMI target are Secure state</li>
<li>1: BusFault, HardFault, and NMI target are Non-Secure state </li>
</ul>
</td></tr>
</table>
<h1><a class="anchor" id="sau_interrupttarget_sec"></a>
Configuration of Interrupt Target settings</h1>
<p>Each interrupt has a configuration bit that defines the execution in Secure or Non-secure state. The Non-Secure interrupts have a separate vector table. Refer to <a class="el" href="using_TrustZone_pg.html#Model_TrustZone">Programmers Model with TrustZone</a> for more information.</p>
<table class="cmtable">
<tr>
<th>#define </th><th>Value Range </th><th>Default </th><th>Description </th></tr>
<tr>
<td>NVIC_INIT_ITNS<number> </td><td>0x00000000 .. 0xFFFFFFFF<br/>
[each bit represents an interrupt] </td><td>0x00000000 </td><td>Interrupt vector target<ul>
<li>0: Secure state</li>
<li>1: Non-Secure state </li>
</ul>
</td></tr>
</table>
<p>The range of <number> is 0 .. (<number of external interrupts> + 31) / 32.</p>
<p>The following example shows the configuration for a maximum of 64 external interrupts.</p>
<div class="fragment"><div class="line"><span class="preprocessor">#define NVIC_INIT_ITNS0 0x0000122B</span></div>
<div class="line"><span class="preprocessor">#define NVIC_INIT_ITNS1 0x0000003A</span></div>
</div><!-- fragment --> </div></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="templates_pg.html">CMSIS-Core Device Templates</a></li>
<li class="footer">Generated on Wed Jul 10 2019 15:20:25 for CMSIS-Core (Cortex-M) Version 5.3.0 by Arm Ltd. All rights reserved.
<!--
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6
-->
</li>
</ul>
</div>
</body>
</html>
|
