https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1394738#M185435 <P>which dts file do you use? this one?</P> <P>"<A href="https://source.codeaurora.org/external/imx/uboot-imx/tree/arch/arm/dts/imx8mq.dtsi?h=imx_v2020.04_5.4.47_2.2.0" target="_blank">https://source.codeaurora.org/external/imx/uboot-imx/tree/arch/arm/dts/imx8mq.dtsi?h=imx_v2020.04_5.4.47_2.2.0</A>"</P> Wed, 05 Jan 2022 09:46:46 GMT joanxie 2022-01-05T09:46:46Z https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1393906#M185319 <P>imx8m：</P><P>在uboot阶段初始化i2c设备，设备树中添加后，，对应.c源代码使用那个呢？</P><P>&nbsp;</P><P>目录：</P><P>/5.4.47/uboot-imx/drivers/i2c</P><LI-SPOILER>&nbsp;</LI-SPOILER> Tue, 04 Jan 2022 02:04:33 GMT https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1393906#M185319 lebeer 2022-01-04T02:04:33Z https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1393915#M185322 <P>&amp;i2c1 {<BR />&nbsp; &nbsp; &nbsp; clock-frequency = &lt;100000&gt;;<BR />&nbsp; &nbsp; &nbsp; pinctrl-names = "default", "gpio";<BR />&nbsp; &nbsp; &nbsp; pinctrl-0 = &lt;&amp;pinctrl_i2c1&gt;;<BR />&nbsp; &nbsp; &nbsp; pinctrl-1 = &lt;&amp;pinctrl_i2c1_gpio&gt;;<BR />&nbsp; &nbsp; &nbsp; scl-gpios = &lt;&amp;gpio5 14 GPIO_ACTIVE_HIGH&gt;;<BR />&nbsp; &nbsp; &nbsp; sda-gpios = &lt;&amp;gpio5 15 GPIO_ACTIVE_HIGH&gt;;<BR />&nbsp; &nbsp; &nbsp; status = "okay";</P><P>&nbsp; &nbsp; <STRONG>ADD</STRONG></P><P>&nbsp;</P><P>&nbsp; &nbsp; &nbsp; pmic: pfuze100@8 {<BR />&nbsp; &nbsp; &nbsp; compatible = "fsl,pfuze100";<BR />&nbsp; &nbsp; &nbsp; reg = &lt;0x8&gt;;</P><P>&nbsp; &nbsp; &nbsp; .......</P><P>&nbsp; &nbsp; &nbsp; }</P><P>}</P> Tue, 04 Jan 2022 02:19:16 GMT https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1393915#M185322 lebeer 2022-01-04T02:19:16Z https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1394738#M185435 <P>which dts file do you use? this one?</P> <P>"<A href="https://source.codeaurora.org/external/imx/uboot-imx/tree/arch/arm/dts/imx8mq.dtsi?h=imx_v2020.04_5.4.47_2.2.0" target="_blank">https://source.codeaurora.org/external/imx/uboot-imx/tree/arch/arm/dts/imx8mq.dtsi?h=imx_v2020.04_5.4.47_2.2.0</A>"</P> Wed, 05 Jan 2022 09:46:46 GMT https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1394738#M185435 joanxie 2022-01-05T09:46:46Z https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1395215#M185453 <P>是的；</P><P>使用的是imx8mq-ddr4-val.dts，目录：/5.4.47/uboot-imx/arch/arm/dts</P><P>imx8mq-ddr4-val.dts包含imx8mq.dtsi</P> Thu, 06 Jan 2022 02:07:33 GMT https://community.nxp.com/t5/i-MX-Processors/%E5%A6%82%E4%BD%95%E5%9C%A8imx8m-%E5%9C%A8uboot%E9%98%B6%E6%AE%B5%E5%88%9D%E5%A7%8B%E5%8C%96i2c%E8%AE%BE%E5%A4%87/m-p/1395215#M185453 lebeer 2022-01-06T02:07:33Z