https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731246#M113753 <HTML><HEAD></HEAD><BODY><P>Hi youyong</P><P></P><P>please check struct spi_device_id spi_nor_ids in linux/drivers/mtd/devices/spi-nor/spi-nor.c</P><P>and add necessary model parameters. More details can be found in Chapter 31<BR />SPI NOR Flash Memory Technology Device (MTD) Driver attached Linux Manual.</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 17 Jan 2018 08:06:28 GMT igorpadykov 2018-01-17T08:06:28Z https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731245#M113752 <HTML><HEAD></HEAD><BODY><P>the cpu is imx6dl,and we need add a driver of AT45DB021E spi flash.but it is not succeed.because it is also nor flash,so i add it like m25p80.c.but the result is as follows images.I can not see it in the "/dev".why?</P></BODY></HTML> Wed, 17 Jan 2018 06:27:01 GMT https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731245#M113752 youyong 2018-01-17T06:27:01Z https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731246#M113753 <HTML><HEAD></HEAD><BODY><P>Hi youyong</P><P></P><P>please check struct spi_device_id spi_nor_ids in linux/drivers/mtd/devices/spi-nor/spi-nor.c</P><P>and add necessary model parameters. More details can be found in Chapter 31<BR />SPI NOR Flash Memory Technology Device (MTD) Driver attached Linux Manual.</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 17 Jan 2018 08:06:28 GMT https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731246#M113753 igorpadykov 2018-01-17T08:06:28Z https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731247#M113754 <HTML><HEAD></HEAD><BODY><P>How do I know if this drive is successful? For example, there are specific flags in the “/dev” directory.</P></BODY></HTML> Wed, 17 Jan 2018 09:40:42 GMT https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731247#M113754 youyong 2018-01-17T09:40:42Z https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731248#M113755 <HTML><HEAD></HEAD><BODY><P>having sources, one can debug it using AN4553 Using Open Source Debugging</P><P>Tools for Linux on i.MX Processors<BR /><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=https%3A%2F%2Fwww.nxp.com%2Fdocs%2Fen%2Fapplication-note%2FAN4553.pdf" rel="nofollow" target="_blank">https://www.nxp.com/docs/en/application-note/AN4553.pdf</A></P><P></P><P>~igor</P></BODY></HTML> Wed, 17 Jan 2018 11:12:23 GMT https://community.nxp.com/t5/i-MX-Processors/how-to-add-spi-flash-driver/m-p/731248#M113755 igorpadykov 2018-01-17T11:12:23Z