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+<table class="head">
+ <tr>
+ <td class="head-ltitle">MX25L(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">MX25L(4)</td>
+ </tr>
+</table>
+<div class="manual-text">
+<section class="Sh">
+<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
+<p class="Pp"><code class="Nm">mx25l</code> &#x2014; <span class="Nd">SpiFlash
+ compatible non-volatile storage devices driver</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp"><code class="Cd">device mx25l</code></p>
+<p class="Pp">In <a class="Xr">loader.conf(5)</a>:
+ <br/>
+ <code class="Cd">mx25l_load=&quot;YES&quot;</code></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">The <code class="Nm">mx25l</code> driver provides support for the
+ family of non-volatile storage devices known collectively as SpiFlash(tm).
+ SpiFlash chips typically have part numbers beginning with EN25, IS25, MX25,
+ S25, SST25, or W25.</p>
+<p class="Pp">The <code class="Nm">mx25l</code> driver uses opcode 0x9f to read
+ the manufacturer and device ID data to determine whether the device is
+ supported. The device ID is looked up using a table of data within the
+ driver which describes the attributes of each supported device, such as
+ block size, sector size, and device capacity. When a supported device is
+ found, the <code class="Nm">mx25l</code> driver creates a disk device and
+ makes it accessible at <span class="Pa">/dev/flash/spi?</span>. The new disk
+ device is then tasted by the available <a class="Xr">geom(4)</a> modules as
+ with any disk device.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HARDWARE"><a class="permalink" href="#HARDWARE">HARDWARE</a></h1>
+<p class="Pp">The <code class="Nm">mx25l</code> driver supports the following
+ spi flash memory devices:</p>
+<p class="Pp"></p>
+<ul class="Bl-bullet Bl-compact">
+ <li>AT25DF641</li>
+ <li>EN25F32</li>
+ <li>EN25P32</li>
+ <li>EN25P64</li>
+ <li>EN25Q32</li>
+ <li>EN25Q64</li>
+ <li>GD25Q64</li>
+ <li>M25P32</li>
+ <li>M25P64</li>
+ <li>MX25L1606E</li>
+ <li>MX25LL128</li>
+ <li>MX25LL256</li>
+ <li>MX25LL32</li>
+ <li>MX25LL64</li>
+ <li>N25Q64</li>
+ <li>S25FL032</li>
+ <li>S25FL064</li>
+ <li>S25FL128</li>
+ <li>S25FL256S</li>
+ <li>SST25VF010A</li>
+ <li>SST25VF032B</li>
+ <li>W25Q128</li>
+ <li>W25Q256</li>
+ <li>W25Q32</li>
+ <li>W25Q64</li>
+ <li>W25Q64BV</li>
+ <li>W25X32</li>
+ <li>W25X64</li>
+</ul>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="FDT_CONFIGURATION"><a class="permalink" href="#FDT_CONFIGURATION">FDT
+ CONFIGURATION</a></h1>
+<p class="Pp">On an <a class="Xr">fdt(4)</a> based system, the
+ <code class="Nm">mx25l</code> device is defined as a slave device subnode of
+ the SPI bus controller node. All properties documented in the
+ <var class="Va">spibus.txt</var> bindings document can be used with the
+ <code class="Nm">mx25l</code> device. The most commonly-used ones are
+ documented below.</p>
+<p class="Pp">The following properties are required in the
+ <code class="Nm">mx25l</code> device subnode:</p>
+<dl class="Bl-tag">
+ <dt id="compatible"><var class="Va">compatible</var></dt>
+ <dd>Must be the string &quot;jedec,spi-nor&quot;.</dd>
+ <dt id="reg"><var class="Va">reg</var></dt>
+ <dd>Chip select address of device.</dd>
+ <dt id="spi-max-frequency"><var class="Va">spi-max-frequency</var></dt>
+ <dd>The maximum bus frequency to use when communicating with this slave
+ device. Actual bus speed may be lower, depending on the capabilities of
+ the SPI bus controller hardware.</dd>
+</dl>
+<p class="Pp">The following properties are optional for the
+ <code class="Nm">mx25l</code> device subnode:</p>
+<dl class="Bl-tag">
+ <dt id="spi-cpha"><var class="Va">spi-cpha</var></dt>
+ <dd>Empty property indicating the slave device requires shifted clock phase
+ (CPHA) mode.</dd>
+ <dt id="spi-cpol"><var class="Va">spi-cpol</var></dt>
+ <dd>Empty property indicating the slave device requires inverse clock polarity
+ (CPOL) mode.</dd>
+ <dt id="spi-cs-high"><var class="Va">spi-cs-high</var></dt>
+ <dd>Empty property indicating the slave device requires chip select active
+ high.</dd>
+</dl>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HINTS_CONFIGURATION"><a class="permalink" href="#HINTS_CONFIGURATION">HINTS
+ CONFIGURATION</a></h1>
+<p class="Pp">On a <a class="Xr">device.hints(5)</a> based system, such as
+ <code class="Li">MIPS</code>, these values are configurable for
+ <code class="Nm">mx25l</code>:</p>
+<dl class="Bl-tag">
+ <dt id="hint.mx25l._d.at"><var class="Va">hint.mx25l.%d.at</var></dt>
+ <dd>The spibus the <code class="Nm">mx25l</code> instance is attached to.</dd>
+ <dt id="hint.mx25l._d.clock"><var class="Va">hint.mx25l.%d.clock</var></dt>
+ <dd>The maximum bus frequency to use when communicating with this device.
+ Actual bus speed may be lower, depending on the capabilities of the SPI
+ bus controller hardware.</dd>
+ <dt id="hint.mx25l._d.cs"><var class="Va">hint.mx25l.%d.cs</var></dt>
+ <dd>The chip-select number to assert when performing I/O for this device. Set
+ the high bit (1 &lt;&lt; 31) to invert the logic level of the chip select
+ line.</dd>
+ <dt id="hint.mx25l._d.mode"><var class="Va">hint.mx25l.%d.mode</var></dt>
+ <dd>The SPI mode (0-3) to use when communicating with this device.</dd>
+</dl>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="FILES"><a class="permalink" href="#FILES">FILES</a></h1>
+<dl class="Bl-tag">
+ <dt><span class="Pa">/dev/flash/spi?</span></dt>
+ <dd>Provides read/write access to the storage device.</dd>
+</dl>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
+ ALSO</a></h1>
+<p class="Pp"><a class="Xr">fdt(4)</a>, <a class="Xr">geom(4)</a></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
+<p class="Pp">The <code class="Nm">mx25l</code> driver first appeared in
+ <span class="Ux">FreeBSD 8.0</span>.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">November 11, 2025</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>