uEnv_usbmsc.txt
Environment variables for boot images on USB
Mass Storage. Need to be renamed to uEnv.txt
uEnv_usbmsc_ramdisk.txt
Environment variables for boot ramdisk images on
USB Mass Storage. Need to be renamed to
uEnv.txt
uEnv_mmc.txt
Environment variables for boot images on EMMC.
Need to be renamed to uEnv.txt
zImage
Kernel image
myd_c335x.dtb
Device tree binary for MYD-AM335X with NAND
Flash
myd_c335x_emmc.dtb
Device tree binary for MYD-AM335X with EMMC
myd_y335x.dtb
Device tree binary for MYD-AM335X-Y with NAND
Flash
myd_y335x_emmc.dtb
Device tree binary for MYD-AM335X-Y with
EMMC
myd_j335x.dtb
Device tree binary for MYD-AM335X-J with NAND
Flash
myd_j335x_emmc.dtb
Device tree binary for MYD-AM335X-J with EMMC
rootfs.tar.gz
ramdisk filesystem compressed by gzip
rootfs.ubi
UBIFS filesystem image
ramdisk.gz
ramdisk filesystem compressed by gzip
sdcard.img
TF/SD/EMMC disk image
uEnv*.txt
are text files, they define the environment parameters for U-boot, and then
determine the boot process of U-boot. We take the
uEnv_ramdisk.txt
as an example:
fdtfile
define the device tree name of the board,
devtype
define the boot device
type,
devnum
define the device number(0: TF Card, 1: EMMC).
bootdir
define the
path of the image files on the boot partition.
bootpart
define the boot partition on the
device(0:1 means the first partition on device 0).
uenvcmd
define a script for U-boot, it
will load kernel, device tree and bootup.
# This uEnv.txt file can contain additional environment settings that you
# want to set in U-Boot at boot time. This can be simple variables such
# as the serverip or custom variables. The format of this file is:
# variable=value
# NOTE: This file will be evaluated after the bootcmd is run and the
# bootcmd must be set to load this file if it exists (this is the
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