topic How does NAND boot to get boot variables from boot partition? in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062938#M156224 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have u-boot and u-boot environment in imx6ull NAND MTD partitions:</P><P>0: boot 0x00400000 0x00000000 0<BR /> 1: ubootenv 0x00100000 0x00400000 0</P><P></P><P>After running zImage-initramfs to use kob to install u-boot.imx-nand to iMX6ULL MTD partition 0 boot, how will the NAND boot to get bootargs and bootcmd from boot partition?</P><P></P><P>Many blogs advised not to use setenv in u-boot or fw_setenv in Linux, but to get boot variables from the u-boot, but how?</P><P></P><P>Appreciate your advice how to get boot varaiables from the u-boot.imx-nand.</P><P></P><P>Thank you.</P></BODY></HTML> Fri, 08 May 2020 11:11:29 GMT jupiter_hce 2020-05-08T11:11:29Z How does NAND boot to get boot variables from boot partition? https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062938#M156224 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have u-boot and u-boot environment in imx6ull NAND MTD partitions:</P><P>0: boot 0x00400000 0x00000000 0<BR /> 1: ubootenv 0x00100000 0x00400000 0</P><P></P><P>After running zImage-initramfs to use kob to install u-boot.imx-nand to iMX6ULL MTD partition 0 boot, how will the NAND boot to get bootargs and bootcmd from boot partition?</P><P></P><P>Many blogs advised not to use setenv in u-boot or fw_setenv in Linux, but to get boot variables from the u-boot, but how?</P><P></P><P>Appreciate your advice how to get boot varaiables from the u-boot.imx-nand.</P><P></P><P>Thank you.</P></BODY></HTML> Fri, 08 May 2020 11:11:29 GMT https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062938#M156224 jupiter_hce 2020-05-08T11:11:29Z Re: How does NAND boot to get boot variables from boot partition? https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062939#M156225 <HTML><HEAD></HEAD><BODY><P>Hi jupiter</P><P></P><P>one can look at "defined(CONFIG_ENV_IS_IN_NAND" in</P><P><A class="link-titled" href="https://source.codeaurora.org/external/imx/uboot-imx/tree/include/configs/mx6ullevk.h?h=imx_v2019.04_4.19.35_1.1.0" title="https://source.codeaurora.org/external/imx/uboot-imx/tree/include/configs/mx6ullevk.h?h=imx_v2019.04_4.19.35_1.1.0">mx6ullevk.h\configs\include - uboot-imx - i.MX U-Boot</A>&nbsp;</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> Sat, 09 May 2020 14:49:29 GMT https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062939#M156225 igorpadykov 2020-05-09T14:49:29Z Re: How does NAND boot to get boot variables from boot partition? https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062940#M156226 <HTML><HEAD></HEAD><BODY><P>Hi igor,</P><P></P><P>Thanks for the response. this is a iMX6ULL EVK customized board, I have already set up the NAND ENV parameters in mx6ullevk.h based on following customized ubootenv partition in NAND:</P><P></P><P>0: boot 0x00400000 0x00000000 0</P><P><BR /> 1: ubootenv 0x00100000 0x00400000 0</P><P></P><P>$ cat mx6ullevk.h</P><P>.........</P><P></P><P>#define CONFIG_ENV_OFFSET 0x400000</P><P><BR />#define CONFIG_ENV_SECT_SIZE 0x100000</P><P><BR />#define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE</P><P></P><P>........</P><P></P><P>Did I get wrong for setting up ENV_OFFSET and ENV_SECT_SIZE based on the ubootenv NAND partition offset and size? I did notice your reference u-boot source version is 2019 where my u-boot version is 2018 defined by Zeus meta-freescale.</P><P></P><P>Thank you.</P><P></P><P>Kind regards,</P><P></P><P>jupiter</P></BODY></HTML> Sun, 10 May 2020 01:35:22 GMT https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062940#M156226 jupiter_hce 2020-05-10T01:35:22Z Re: How does NAND boot to get boot variables from boot partition? https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062941#M156227 <HTML><HEAD></HEAD><BODY><P>Hi jupiter</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>this is general uboot question and may be posted on uboot mail list</P><P><A class="link-titled" href="https://lists.denx.de/listinfo/u-boot" title="https://lists.denx.de/listinfo/u-boot">U-Boot Info Page</A>&nbsp;</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Best regards<BR />igor</P></BODY></HTML> Sun, 10 May 2020 15:51:34 GMT https://community.nxp.com/t5/i-MX-Processors/How-does-NAND-boot-to-get-boot-variables-from-boot-partition/m-p/1062941#M156227 igorpadykov 2020-05-10T15:51:34Z