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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/spinor/spinor_linux_transplant.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">Linux 移植</h1><div class="date inPage">15 Jul 2024</div><div style="color: gray;">
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Read time: 5 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><p class="- topic/p p" data-ofbid="d284838e23__20250121171754">SPI NOR 驱动 Linux 和 U-Boot 的驱动不一样，Linux 中驱动更复杂一些，本章阐述如何在 Linux 中进行 SPI NOR 器件的移植工作，以
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<code class="+ topic/ph pr-d/codeph ph codeph">Gigadevice</code> 的 <code class="+ topic/ph pr-d/codeph ph codeph">gd25q128</code> 和
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<code class="+ topic/ph pr-d/codeph ph codeph">FudanMicro</code> 的 <code class="+ topic/ph pr-d/codeph ph codeph">FM25Q128</code> 为例</p><div class="- topic/p p" data-ofbid="d284838e37__20250121171754">
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<ul class="- topic/ul ul" id="spi_nor_linux_transplant__ul_es5_xvy_c1c" data-ofbid="spi_nor_linux_transplant__ul_es5_xvy_c1c"><li class="- topic/li li" data-ofbid="d284838e40__20250121171754">
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<p class="- topic/p p" data-ofbid="d284838e42__20250121171754">移植一款 SPI NOR，最重要的是 JEDEC ID，通过在数据手册中查找 0x9F 命令获得</p>
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</li><li class="- topic/li li" data-ofbid="d284838e45__20250121171754">
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<p class="- topic/p p" data-ofbid="d284838e47__20250121171754">其他的参数都可以默认设置，INFO(0xa14017, 0, 64 * 1024, n_sectors, SECT_4K |
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SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)</p>
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</li><li class="- topic/li li" data-ofbid="d284838e50__20250121171754">
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<p class="- topic/p p" data-ofbid="d284838e52__20250121171754">推荐使用标准 dts 进行 SPI NOR 的兼容</p>
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</li></ul>
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</div><section class="- topic/section section" id="spi_nor_linux_transplant__section_myj_zvy_c1c" data-ofbid="spi_nor_linux_transplant__section_myj_zvy_c1c"><h2 class="- topic/title title sectiontitle">文件准备</h2>
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<p class="- topic/p p" data-ofbid="d284838e61__20250121171754">相较于 SPI NAND 器件， SPI NOR
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的接口更加标准，但为了统一管理的方便，还是会为某一个公司创建一个文件进行管理，如果该公司的文件已经存在，则直接添加新器件支持即可</p>
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<ul class="- topic/ul ul" id="spi_nor_linux_transplant__ul_nyj_zvy_c1c" data-ofbid="spi_nor_linux_transplant__ul_nyj_zvy_c1c"><li class="- topic/li li" data-ofbid="d284838e65__20250121171754">在 <span class="+ topic/ph sw-d/filepath ph filepath">source/linux-5.10/drivers/mtd/spi-nor/</span> 下建相应公司的标识的文件，如
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<span class="+ topic/ph sw-d/filepath ph filepath">fmsh.c cfx.c</span></li><li class="- topic/li li" data-ofbid="d284838e72__20250121171754">在 Makefile 中添加该文件的编译： spi-nor-objs += fmsh.o</li><li class="- topic/li li" data-ofbid="d284838e74__20250121171754">在 <span class="+ topic/ph sw-d/filepath ph filepath">source/linux-5.10/drivers/mtd/spi-nor/core.h</span> 中声明 extern
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const struct spi_nor_manufacturer spi_nor_fmsh;</li></ul>
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</section><section class="- topic/section section" id="spi_nor_linux_transplant__section_oyj_zvy_c1c" data-ofbid="spi_nor_linux_transplant__section_oyj_zvy_c1c"><h2 class="- topic/title title sectiontitle">驱动索引</h2>
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<p class="- topic/p p" data-ofbid="d284838e85__20250121171754">内核中所支持的 SPI NOR 设备通过两级列表进行设置。</p>
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<div class="- topic/p p" data-ofbid="d284838e88__20250121171754">首先检查 <span class="+ topic/ph sw-d/filepath ph filepath">source/linux-5.10/drivers/mtd/spi-nor/core.c</span> 中的
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<span class="+ topic/keyword pr-d/parmname keyword parmname">manufacturers</span>,
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查看新设备的厂商是否在列表之中：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nor_linux_transplant__codeblock_c1q_1wy_c1c" data-ofbid="spi_nor_linux_transplant__codeblock_c1q_1wy_c1c"><strong class="hl-keyword">static</strong> <strong class="hl-keyword">const</strong> <strong class="hl-keyword">struct</strong> spi_nor_manufacturer *manufacturers[] = {
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&spi_nor_atmel,
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&spi_nor_catalyst,
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&spi_nor_eon,
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&spi_nor_esmt,
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&spi_nor_everspin,
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&spi_nor_fujitsu,
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&spi_nor_gigadevice,
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&spi_nor_intel,
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&spi_nor_issi,
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&spi_nor_macronix,
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&spi_nor_micron,
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&spi_nor_st,
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&spi_nor_spansion,
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&spi_nor_sst,
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&spi_nor_winbond,
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&spi_nor_xilinx,
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&spi_nor_xmc,
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&spi_nor_boya,
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};</pre></div>
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<p class="- topic/p p" data-ofbid="d284838e99__20250121171754">再检查具体的设备厂商文件，具体的型号是否在列表之中（ 以 gigadevice 为例）:</p>
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nor_linux_transplant__codeblock_ypw_1wy_c1c" data-ofbid="spi_nor_linux_transplant__codeblock_ypw_1wy_c1c"><strong class="hl-keyword">static</strong> <strong class="hl-keyword">const</strong> <strong class="hl-keyword">struct</strong> flash_info gigadevice_parts[] = {
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......
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{ <span class="hl-string">"gd25q128"</span>, INFO(<span class="hl-number">0xc84018</span>, <span class="hl-number">0</span>, <span class="hl-number">64</span> * <span class="hl-number">1024</span>, <span class="hl-number">256</span>,
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SECT_<span class="hl-number">4</span>K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
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SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
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......
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};</pre>
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<p class="- topic/p p" data-ofbid="d284838e106__20250121171754">此处检查，需要查找新设备的 Datasheet，找到该设备的 Manufacture 和 Device ID，并查看该 ID 是否出现在列表中。 例如此处为
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<code class="+ topic/ph pr-d/codeph ph codeph">0xc84018</code> ，其中 Manufacture ID = <code class="+ topic/ph pr-d/codeph ph codeph">0xc8</code>, Device ID
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ID[15~8] = <code class="+ topic/ph pr-d/codeph ph codeph">0x40</code>, Device ID[7~0] = <code class="+ topic/ph pr-d/codeph ph codeph">0x18</code> 。</p>
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</section><section class="- topic/section section" id="spi_nor_linux_transplant__section_ol3_xwy_c1c" data-ofbid="spi_nor_linux_transplant__section_ol3_xwy_c1c"><h2 class="- topic/title title sectiontitle">spi_nor_manufacturer</h2>
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<p class="- topic/p p" data-ofbid="d284838e126__20250121171754">该结构为第一级索引，用来描述器件厂家的信息</p>
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<div class="- topic/p p" data-ofbid="d284838e129__20250121171754">SPI NOR
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的接口和操作命令很统一，基本没有需要特殊处理的命令<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nor_linux_transplant__codeblock_ezk_fwy_c1c" data-ofbid="spi_nor_linux_transplant__codeblock_ezk_fwy_c1c"><strong class="hl-keyword">const</strong> <strong class="hl-keyword">struct</strong> spi_nor_manufacturer spi_nor_fmsh = {
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.name = <span class="hl-string">"FudanMicro"</span>, <em class="hl-comment">//厂家名字标识</em>
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.parts = fmsh_parts, <em class="hl-comment">//本驱动支持的器件</em>
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.nparts = ARRAY_SIZE(fmsh_parts), <em class="hl-comment">//支持的器件的个数</em>
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};</pre></div>
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</section><section class="- topic/section section" id="spi_nor_linux_transplant__section_r2d_zwy_c1c" data-ofbid="spi_nor_linux_transplant__section_r2d_zwy_c1c"><h2 class="- topic/title title sectiontitle">flash_info</h2>
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<div class="- topic/div div">
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<div class="- topic/p p" data-ofbid="d284838e141__20250121171754">flash_info 数据结构主要用来描述某一颗 SPI NOR 的参数，通过 INFO
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宏来设置，其详细结构为：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nor_linux_transplant__codeblock_y1s_45y_c1c" data-ofbid="spi_nor_linux_transplant__codeblock_y1s_45y_c1c"><strong class="hl-keyword">struct</strong> flash_info {
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<strong class="hl-keyword">char</strong> *name; <em class="hl-comment">//器件名称，一般用器件编号替代</em>
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u8 id[SPI_NOR_MAX_ID_LEN]; <em class="hl-comment">//JEDEC 授权的器件 ID</em>
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u8 id_len; <em class="hl-comment">//ID 长度，填 0，自动计算</em>
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<strong class="hl-keyword">unsigned</strong> sector_size; <em class="hl-comment">//sector size，现在的意义已经改变</em>
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u16 n_sectors; <em class="hl-comment">//sector 数目，通过 flash size 和 sector size 计算出来</em>
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u16 page_size; <em class="hl-comment">//页大小， INFO 宏固定为 256</em>
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u16 addr_width; <em class="hl-comment">//</em><span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span> 中配置
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u32 flags; <em class="hl-comment">//功能标识</em></pre></div>
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||
<ul class="- topic/ul ul" id="spi_nor_linux_transplant__ul_g2b_t5y_c1c" data-ofbid="spi_nor_linux_transplant__ul_g2b_t5y_c1c"><li class="- topic/li li" data-ofbid="d284838e150__20250121171754"><strong class="+ topic/ph hi-d/b ph b">JEDEC ID</strong>：和 SPI NAND 不同， SPI NOR 的 ID 包含 Manufacture ID 和
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||
Device ID 等多项内容，一般为 24 位，描述方式为<div class="table-container"><table class="- topic/table table frame-all" id="spi_nor_linux_transplant__table_l5h_55y_c1c" data-ofbid="spi_nor_linux_transplant__table_l5h_55y_c1c" data-cols="4"><caption></caption><colgroup><col style="width:25%"/><col style="width:25%"/><col style="width:25%"/><col style="width:25%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1">阈值</th><th class="- topic/entry entry colsep-1 rowsep-1" id="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2">名称</th><th class="- topic/entry entry colsep-1 rowsep-1" id="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3">示例</th><th class="- topic/entry entry colsep-0 rowsep-1" id="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__4">标记方式</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1">MID7 - IDF0</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2">Maunfacture ID</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3">0xa1</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__4">JEDEC 分配</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1">D15 - D8</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2">Memory Type</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3">0x40</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__4">0x9F 命令</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1">D7 - D0</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2">Memory Desity</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3">0x17</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="spi_nor_linux_transplant__table_l5h_55y_c1c__entry__4">0x9F 命令</td></tr></tbody></table></div><p class="- topic/p p" data-ofbid="d284838e198__20250121171754">不同厂家在数据手册中描述方法不一样，但现代的 SPI NOR 的 MID 一般通过
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“Maunfacture/MID” 等字段标注，Device ID 的（D15 - D0） 一般通过 0x9F 命令标注，
|
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因此在数据手册中通过搜索 9F 一般能构造出 JEDEC ID， 如下图所示</p><ul class="- topic/ul ul" id="spi_nor_linux_transplant__ul_m5h_55y_c1c" data-ofbid="spi_nor_linux_transplant__ul_m5h_55y_c1c"><li class="- topic/li li" data-ofbid="d284838e201__20250121171754">0xC84018<div class="- topic/p p" data-ofbid="d284838e203__20250121171754">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_nor_linux_transplant__image_n5h_55y_c1c" src="../../../images/memory/spinor_device_id1.png" width="480" alt="id-1"/></div><br/>
|
||
</div></li><li class="- topic/li li" data-ofbid="d284838e209__20250121171754">0xC22018<div class="- topic/p p" data-ofbid="d284838e211__20250121171754">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_nor_linux_transplant__image_p5h_55y_c1c" src="../../../images/memory/spinor_device_id2.png" width="480" alt="id-2"/></div><br/>
|
||
</div></li><li class="- topic/li li" data-ofbid="d284838e217__20250121171754">0xA14017<div class="- topic/p p" data-ofbid="d284838e219__20250121171754">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_nor_linux_transplant__image_r5h_55y_c1c" src="../../../images/memory/spinor_device_id3.png" width="480" alt="id-3"/></div><br/>
|
||
</div></li></ul></li><li class="- topic/li li" data-ofbid="d284838e225__20250121171754"><strong class="+ topic/ph hi-d/b ph b">sector_size</strong>：Sector Size 是个历史产物，不管是文件系统还是厂家的器件规格都开始对外提供基于
|
||
Block 的接口，但在名称上还保留了 Sector 的名称，而驱动中则已经完全切换到 Block 的逻辑<p class="- topic/p p" data-ofbid="d284838e229__20250121171754">Sector Size
|
||
主要定义的是擦除参数，一般的器件提供三种擦除操作</p><div class="table-container"><table class="- topic/table table frame-all" id="spi_nor_linux_transplant__table_exs_dvy_c1c" data-ofbid="spi_nor_linux_transplant__table_exs_dvy_c1c" data-cols="4"><caption></caption><colgroup><col style="width:26.814814814814813%"/><col style="width:16.296296296296298%"/><col style="width:14.814814814814813%"/><col style="width:42.07407407407407%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1">操作方式</th><th class="- topic/entry entry colsep-1 rowsep-1" id="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2">命令</th><th class="- topic/entry entry colsep-1 rowsep-1" id="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3">擦除大小</th><th class="- topic/entry entry colsep-0 rowsep-1" id="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__4">备注</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1">Sector Erase( SE)</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2">0x20</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3">4K</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__4">基础能力，主要做兼容，不做主力</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1">32K Block Erase (BE)</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2">0x52</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3">32K</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__4">不再使用，和 BE-64 成对</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1">64K Block Erase (BE)</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2">0xD8</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3">64K</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="spi_nor_linux_transplant__table_exs_dvy_c1c__entry__4">大部分都支持，如果不支持则必须支持 SE</td></tr></tbody></table></div><p class="- topic/p p" data-ofbid="d284838e275__20250121171754">在驱动中，Sector_Size 描述的实际是 BE-64 的参数，而 BE-64 要求的 size 又是固定的
|
||
64K，因此该参数的设置原则是：</p><ul class="- topic/ul ul" id="spi_nor_linux_transplant__ul_fxs_dvy_c1c" data-ofbid="spi_nor_linux_transplant__ul_fxs_dvy_c1c"><li class="- topic/li li" data-ofbid="d284838e278__20250121171754">在数据手册中，如果支持 64K Block Erase (0xD8）命令，则设置为 ‘64 * 1024’</li><li class="- topic/li li" data-ofbid="d284838e280__20250121171754">在数据手册中, 如果不支持 64K Block Erase (0xD8）命令，则设置为 ‘4 * 1024’</li></ul><div class="- topic/p p" data-ofbid="d284838e282__20250121171754">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_nor_linux_transplant__image_gxs_dvy_c1c" src="../../../images/memory/spinor_sector_size.png" width="480" alt="se"/></div><br/>
|
||
</div></li><li class="- topic/li li" data-ofbid="d284838e288__20250121171754"><strong class="+ topic/ph hi-d/b ph b">n_sectors</strong>：Sector (Block) 数目通过计算得到， 计算公式为 (（flash size）/
|
||
sector size)，需要注意不同参数使用 Byte（B） 还是 bit（b） 描述<ul class="- topic/ul ul" id="spi_nor_linux_transplant__ul_gzk_3vy_c1c" data-ofbid="spi_nor_linux_transplant__ul_gzk_3vy_c1c"><li class="- topic/li li" data-ofbid="d284838e293__20250121171754">
|
||
<p class="- topic/p p" data-ofbid="d284838e295__20250121171754">gd25q128： 128Mb / 64KB = 256</p>
|
||
</li><li class="- topic/li li" data-ofbid="d284838e298__20250121171754">
|
||
<p class="- topic/p p" data-ofbid="d284838e300__20250121171754">FM25Q128: 128Mb / 64KB = 256</p>
|
||
</li><li class="- topic/li li" data-ofbid="d284838e303__20250121171754">
|
||
<p class="- topic/p p" data-ofbid="d284838e305__20250121171754">FM25Q64: 64Mb / 64KB = 128</p>
|
||
</li></ul></li><li class="- topic/li li" data-ofbid="d284838e308__20250121171754"><strong class="+ topic/ph hi-d/b ph b">flags</strong>：设置额外的功能标志。<ul class="- topic/ul ul" id="spi_nor_linux_transplant__ul_sxx_jvy_c1c" data-ofbid="spi_nor_linux_transplant__ul_sxx_jvy_c1c"><li class="- topic/li li" data-ofbid="d284838e313__20250121171754">SECT_4K 建议均设置，此功能用来兼容 Sector Erase( SE)
|
||
的支持，在一些特殊情况下可以继续工作</li><li class="- topic/li li" data-ofbid="d284838e315__20250121171754">如果支持 0xBB 命令，则打开 SPI_NOR_DUAL_READ</li><li class="- topic/li li" data-ofbid="d284838e317__20250121171754">如果支持 0xEB 命令，则打开 SPI_NOR_QUAD_READ<div class="- topic/p p" data-ofbid="d284838e319__20250121171754">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_nor_linux_transplant__image_gds_5jv_mbc" src="../../../images/memory/spinor_qspi_read.png" width="480" alt="qspi"/></div><br/>
|
||
</div></li><li class="- topic/li li" data-ofbid="d284838e325__20250121171754">如果有 Status Register，则打开 USE_FSR，是一种状态呈现，非必须 <div class="- topic/p p" data-ofbid="d284838e327__20250121171754">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_nor_linux_transplant__image_vxx_jvy_c1c" src="../../../images/memory/spinor_user_fsr.png" width="480" alt="fsr"/></div><br/>
|
||
</div></li></ul></li></ul>
|
||
</div>
|
||
</section><section class="- topic/section section" id="spi_nor_linux_transplant__section_rhj_fxy_c1c" data-ofbid="spi_nor_linux_transplant__section_rhj_fxy_c1c"><h2 class="- topic/title title sectiontitle">id_table</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d284838e340__20250121171754">除了使用 dts 的 .compatible = “jedec,spi-nor” 统一匹配所有的 SPI NOR 外，驱动还兼容使用非标准 dts 的使用方式， 即直接在
|
||
dts 文件中描述要使用的 SPI NOR 的型号，
|
||
但这会造成固件和器件的紧耦合，不推荐使用<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nor_linux_transplant__codeblock_u4c_gxy_c1c" data-ofbid="spi_nor_linux_transplant__codeblock_u4c_gxy_c1c"><strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> spi_mem_driver spi_nor_driver = {
|
||
.spidrv = {
|
||
.driver = {
|
||
.name = <span class="hl-string">"spi-nor"</span>,
|
||
.of_match_table = spi_nor_of_table,
|
||
},
|
||
.id_table = spi_nor_dev_ids,
|
||
},
|
||
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">const</strong> <strong class="hl-keyword">struct</strong> spi_device_id spi_nor_dev_ids[] = {
|
||
|
||
<em class="hl-comment">/*
|
||
* Entries not used in DTs that should be safe to drop after replacing
|
||
* them with "spi-nor" in platform data.
|
||
*/</em>
|
||
{<span class="hl-string">"s25sl064a"</span>}, {<span class="hl-string">"w25x16"</span>}, {<span class="hl-string">"m25p10"</span>}, {<span class="hl-string">"m25px64"</span>},
|
||
|
||
<em class="hl-comment">/*
|
||
* Entries that were used in DTs without "jedec,spi-nor" fallback and
|
||
* should be kept for backward compatibility.
|
||
*/</em>
|
||
{<span class="hl-string">"at25df321a"</span>}, {<span class="hl-string">"at25df641"</span>}, {<span class="hl-string">"at26df081a"</span>},
|
||
{<span class="hl-string">"mx25l4005a"</span>}, {<span class="hl-string">"mx25l1606e"</span>}, {<span class="hl-string">"mx25l6405d"</span>}, {<span class="hl-string">"mx25l12805d"</span>},
|
||
{<span class="hl-string">"mx25l25635e"</span>},{<span class="hl-string">"mx66l51235l"</span>},
|
||
{<span class="hl-string">"n25q064"</span>}, {<span class="hl-string">"n25q128a11"</span>}, {<span class="hl-string">"n25q128a13"</span>}, {<span class="hl-string">"n25q512a"</span>},
|
||
{<span class="hl-string">"s25fl256s1"</span>}, {<span class="hl-string">"s25fl512s"</span>}, {<span class="hl-string">"s25sl12801"</span>}, {<span class="hl-string">"s25fl008k"</span>},
|
||
{<span class="hl-string">"s25fl064k"</span>},</pre></div>
|
||
</section></div></article></main></div>
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#spi_nor_linux_transplant__section_myj_zvy_c1c" data-tocid="spi_nor_linux_transplant__section_myj_zvy_c1c">文件准备</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_nor_linux_transplant__section_oyj_zvy_c1c" data-tocid="spi_nor_linux_transplant__section_oyj_zvy_c1c">驱动索引</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_nor_linux_transplant__section_ol3_xwy_c1c" data-tocid="spi_nor_linux_transplant__section_ol3_xwy_c1c">spi_nor_manufacturer</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_nor_linux_transplant__section_r2d_zwy_c1c" data-tocid="spi_nor_linux_transplant__section_r2d_zwy_c1c">flash_info</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_nor_linux_transplant__section_rhj_fxy_c1c" data-tocid="spi_nor_linux_transplant__section_rhj_fxy_c1c">id_table</a></div></li></ul></div>
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