※https://u-boot.readthedocs.io/en/latest/usage/index.html#shell-commands 2 u-boot script 的作成 (切换一个设备树) 这里只是脚本内容的作成,实际要使用还需要编译。 使用u-boot脚本进行一个内核设备树的切换,在内核启动前,传入指定设备树。 myscript.sh(名字随意) dtb_file=imx8mp-newname.dtb # 检测...
boot_a_script=load${devtype}${devnum}:${distro_bootpart}${scriptaddr}${prefix}${script}; source ${scriptaddr}boot_scripts=boot.scr.uimg boot.scrboot_targets=mmc0 jtag mmc0 mmc1 qspi0 nand0 usb0 usb1 scsi0 pxe dhcpbootcmd=run distro_bootcmdbootcmd_jtag=echo JTAG: Trying to boot ...
U-Boot为了支持各种Linux发行版,增加通用性,增加了启动时的Script的功能。 详细信息可以参考文档文件doc/develop/distro.rst和Generic Distro Configuration Concept。 U-Boot对Script是逐步完善的。软件代码文件“include/config_distro_bootcmd.h”在2015.01就已经存在。文档文件“doc/develop/distro.rst”在2022.01里加入。
"loadbootscript=" \ "fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \ "bootscript=echo Running bootscript from mmc ...; " \ "source\0" \ "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \ "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_...
exit - exit script ext2load- load binary file from a Ext2 filesystem ext2ls - list files in a directory (default /) ext4load- load binary file from a Ext4 filesystem ext4ls - list files in a directory (default /) ext4size- determine a file's size ...
determine a file's size sleep - delay execution for some time source - run script from ...
source-run script from memory test-minimal test like/bin/sh tftpboot-boot image via network usingTFTPprotocoltrue-donothing,successfully usb-USBsub-system version-print monitor version 2.2 查看具体命令的使用方法–help 格式:help <你想要查的指令> 或者 ? <你想要查的指令> , 甚至 h <你想要查的指...
enable or disable data cachedhcp - boot image via network using DHCP/TFTP protocoldm - Driver model low level accessecho - echo args to consoleeditenv - edit environment variableenv - environment handling commandserase - erase FLASH memoryexit - exit scriptext2load- load binary file from a ...
* Vectors have their own section so linker script can map them easily * *** */ .section ".vectors", "ax" /* *** * * Exception vectors as described in ARM reference manuals * * Uses indirect branch to allow reaching handlers anywhere in memory. * ***...
Can someone please explain the correct process for setting up booting from QSPI using the u-boot boot.scr script? (I'm using Petalinux 2020.1) I'm assuming this is the distro boot feature that is now the preferred way of booting now that u-boot autoconfig is going away? Digging through...