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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/wri/wri-key_procedures.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">关键流程设计</h1>
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|
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<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
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Read time: 2 minute(s)
|
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</div>
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<div class="- topic/body concept/conbody body conbody">
|
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<p class="- topic/p p" data-ofbid="d78032e33__20250123155205">本节描述了 WRI 模块的关键流程设计。</p>
|
||
<section class="- topic/section section" id="wri_key_procedures__section_zvl_43t_c1c" data-ofbid="wri_key_procedures__section_zvl_43t_c1c"><h2 class="- topic/title title sectiontitle">Reboot Reason 的设计</h2>
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<p class="- topic/p p" data-ofbid="d78032e41__20250123155205">WRI 模块需要和 RTC 模块的 SYS_BAK 寄存器一起配合来完成 Reboot Reason 的处理：</p>
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<ol class="- topic/ol ol" id="wri_key_procedures__ol_m1w_z5s_c1c" data-ofbid="wri_key_procedures__ol_m1w_z5s_c1c">
|
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<li class="- topic/li li" data-ofbid="d78032e46__20250123155205">WRI 负责记录硬件可监测到的 Reboot 原因，如过温保护、看门狗复位、外部输入复位等。</li>
|
||
<li class="- topic/li li" data-ofbid="d78032e49__20250123155205">SYS_BAK 负责记录软件可监测到的 Reboot 原因，如 Suspend、Panic、进入烧写模式、正常重启等。</li>
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||
</ol>
|
||
<p class="- topic/p p" data-ofbid="d78032e53__20250123155205">关于 Reboot 原因，梳理分类如下：</p>
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||
<figure class="- topic/fig fig fignone" id="wri_key_procedures__fig_wdz_bvs_c1c" data-ofbid="wri_key_procedures__fig_wdz_bvs_c1c">
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<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="wri_key_procedures__image_p1w_z5s_c1c" src="../../../images/boot/reboot_reason.png" width="576" alt="reboot_reason"/></div><br/>
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<figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">各种情况的 Reboot reason 梳理</span></figcaption></figure>
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<div class="- topic/note note tip note_tip" id="wri_key_procedures__note_ntl_bvs_c1c" data-ofbid="wri_key_procedures__note_ntl_bvs_c1c"><span class="note__title">提示：</span> <div class="note__body">
|
||
<p class="- topic/p p" data-ofbid="d78032e71__20250123155205">外部 IO 复位指常用的 <span class="+ topic/ph ui-d/uicontrol ph uicontrol">Reset</span> 按键。</p>
|
||
</div></div>
|
||
<p class="- topic/p p" data-ofbid="d78032e78__20250123155205">定义 SYS_BAK0 寄存器（4~7bit） 的值如下：（详见
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">include/linux/reboot-reason.h</span>）</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="wri_key_procedures__codeblock_zdl_53t_c1c" data-ofbid="wri_key_procedures__codeblock_zdl_53t_c1c"><code><strong class="hl-keyword">enum</strong> aic_reboot_reason {
|
||
REBOOT_REASON_COLD = <span class="hl-number">0</span>,
|
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REBOOT_REASON_CMD_REBOOT = <span class="hl-number">1</span>,
|
||
REBOOT_REASON_CMD_SHUTDOWN = <span class="hl-number">2</span>,
|
||
REBOOT_REASON_SUSPEND = <span class="hl-number">3</span>,
|
||
REBOOT_REASON_UPGRADE = <span class="hl-number">4</span>,
|
||
REBOOT_REASON_FASTBOOT = <span class="hl-number">5</span>,
|
||
|
||
<em class="hl-comment">/* Some software exception reason */</em>
|
||
REBOOT_REASON_SW_LOCKUP = <span class="hl-number">8</span>,
|
||
REBOOT_REASON_HW_LOCKUP = <span class="hl-number">9</span>,
|
||
REBOOT_REASON_PANIC = <span class="hl-number">10</span>,
|
||
REBOOT_REASON_RAMDUMP = <span class="hl-number">11</span>,
|
||
|
||
<em class="hl-comment">/* Some hardware exception reason */</em>
|
||
REBOOT_REASON_RTC = <span class="hl-number">17</span>,
|
||
REBOOT_REASON_EXTEND = <span class="hl-number">18</span>,
|
||
REBOOT_REASON_DM = <span class="hl-number">19</span>,
|
||
REBOOT_REASON_OTP = <span class="hl-number">20</span>,
|
||
REBOOT_REASON_UNDER_VOL = <span class="hl-number">21</span>,
|
||
};</code></pre>
|
||
<p class="- topic/p p" data-ofbid="d78032e87__20250123155205">针对不同场景，SYS_BAK0 寄存器中的 Reboot reason 和 WRI 中的 RST_FLAG 值对应如下：</p>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="wri_key_procedures__table_r1w_z5s_c1c" data-ofbid="wri_key_procedures__table_r1w_z5s_c1c" data-cols="4"><caption></caption><colgroup><col style="width:16.806722689075627%"/><col style="width:34.45378151260503%"/><col style="width:28.403361344537814%"/><col style="width:20.33613445378151%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="wri_key_procedures__table_r1w_z5s_c1c__entry__1">场景</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="wri_key_procedures__table_r1w_z5s_c1c__entry__2">触发行为</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="wri_key_procedures__table_r1w_z5s_c1c__entry__3">WRI 状态</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="wri_key_procedures__table_r1w_z5s_c1c__entry__4">SYS_BAK 状态值</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__1" rowspan="3">
|
||
<p class="- topic/p p" data-ofbid="d78032e127__20250123155205">正常重启</p>
|
||
</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">按 <span class="+ topic/ph ui-d/uicontrol ph uicontrol">Reset</span> 按键</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">EXT_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">Shell 中执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">reboot</span> 命令</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">CMD_REBOOT</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">Shell 执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">aicupg</span> 命令进入烧写</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">UPGRADE</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__1" rowspan="3">
|
||
<p class="- topic/p p" data-ofbid="d78032e178__20250123155205">正常关机</p>
|
||
</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">长按 <span class="+ topic/ph ui-d/uicontrol ph uicontrol">PowerOn</span> 按键</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">SYS_POR</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">Shell 中执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">poweroff</span> 命令</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">SYS_POR</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">CMD_SHUTDOWN</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">进入深度休眠状态</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">SYS_POR</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">SUSPEND</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__1" rowspan="8">
|
||
<p class="- topic/p p" data-ofbid="d78032e227__20250123155205">异常重启</p>
|
||
</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">过温保护</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">OTP</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">通过 JTAG 执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">reset</span> 命令</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">DM_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">RTC 模块断电</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">RTC_POR</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">内核中发生 <span class="+ topic/keyword pr-d/parmname keyword parmname">SW Lock</span></td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">SW_LOCKUP</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">内核中发生 <span class="+ topic/keyword pr-d/parmname keyword parmname">HW Lock</span></td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">HW_LOCKUP</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">内核中发生 <span class="+ topic/keyword pr-d/parmname keyword parmname">PANIC</span></td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">PANIC</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">内核中触发进入 <span class="+ topic/keyword pr-d/parmname keyword parmname">RAMDUMP</span></td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">RAMDUMP</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__2">电源电压不稳定</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__3">CMP_RST</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="wri_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="- topic/note note note note_note" id="wri_key_procedures__note_drb_1vs_c1c" data-ofbid="wri_key_procedures__note_drb_1vs_c1c"><span class="note__title">注：</span> <div class="note__body">
|
||
<p class="- topic/p p" data-ofbid="d78032e342__20250123155205">其中按 <span class="+ topic/ph ui-d/uicontrol ph uicontrol">Reset </span> 按键的情况，因为软件来不及设置 SYS_BAK，所以为初始值 0 （COLD）。</p>
|
||
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