https://community.nxp.com/t5/Layerscape/about-burning-sd-card-image-in-lsdk2012/m-p/1281024#M8058 <P>Hi:</P><P>&nbsp;As we know, if we want to burn sd card in uboot, first we should use command line :</P><P>tftp a0000000 firmware_&lt;machine&gt;_uboot_sdboot.img</P><P>then we will use command</P><P>&nbsp; mmc write a0000000 8 1f000 to burn it.</P><P>&nbsp;So my question is why the start block is 8?, Is the first 8 block is for RCW binary and PBL? So I think that we had burned a U-boot image before if we use this command?</P> Mon, 24 May 2021 09:04:35 GMT niexuzhong 2021-05-24T09:04:35Z https://community.nxp.com/t5/Layerscape/about-burning-sd-card-image-in-lsdk2012/m-p/1281024#M8058 <P>Hi:</P><P>&nbsp;As we know, if we want to burn sd card in uboot, first we should use command line :</P><P>tftp a0000000 firmware_&lt;machine&gt;_uboot_sdboot.img</P><P>then we will use command</P><P>&nbsp; mmc write a0000000 8 1f000 to burn it.</P><P>&nbsp;So my question is why the start block is 8?, Is the first 8 block is for RCW binary and PBL? So I think that we had burned a U-boot image before if we use this command?</P> Mon, 24 May 2021 09:04:35 GMT https://community.nxp.com/t5/Layerscape/about-burning-sd-card-image-in-lsdk2012/m-p/1281024#M8058 niexuzhong 2021-05-24T09:04:35Z https://community.nxp.com/t5/Layerscape/about-burning-sd-card-image-in-lsdk2012/m-p/1281237#M8060 <P>By design during eSDHC boot RCW is fetched from the address 0x1000 which corresponds to 8th 512-byte block.</P> Mon, 24 May 2021 17:12:26 GMT https://community.nxp.com/t5/Layerscape/about-burning-sd-card-image-in-lsdk2012/m-p/1281237#M8060 ufedor 2021-05-24T17:12:26Z