upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.7 KiB
47 lines
1.7 KiB
13 years ago
|
This patch series adds support for ext4 ls,load and write features in uboot
|
||
|
|
Journaling is supported for write feature.
|
||
|
|
|
||
|
|
To Enable ext2 ls and load commands, modify the board specific config file with
|
||
|
|
#define CONFIG_CMD_EXT2
|
||
|
|
|
||
|
|
To Enable ext4 ls and load commands, modify the board specific config file with
|
||
|
|
#define CONFIG_CMD_EXT4
|
||
|
|
|
||
|
|
To enable ext4 write command, modify the board specific config file with
|
||
|
|
#define CONFIG_CMD_EXT4
|
||
|
|
#define CONFIG_CMD_EXT4_WRITE
|
||
|
|
|
||
|
|
Steps to test:
|
||
|
|
|
||
|
|
1. After applying the patch, ext4 specific commands can be seen
|
||
|
|
in the boot loader prompt using
|
||
|
|
UBOOT #help
|
||
|
|
|
||
|
|
ext4load- load binary file from a Ext4 file system
|
||
|
|
ext4ls - list files in a directory (default /)
|
||
|
|
ext4write- create a file in ext4 formatted partition
|
||
|
|
|
||
|
|
2. To list the files in ext4 formatted partition, execute
|
||
|
|
ext4ls <interface> <dev[:part]> [directory]
|
||
|
|
For example:
|
||
|
|
UBOOT #ext4ls mmc 0:5 /usr/lib
|
||
|
|
|
||
|
|
3. To read and load a file from an ext4 formatted partition to RAM, execute
|
||
|
|
ext4load <interface> <dev[:part]> [addr] [filename] [bytes]
|
||
|
|
For example:
|
||
|
|
UBOOT #ext4load mmc 2:2 0x30007fc0 uImage
|
||
|
|
|
||
|
|
4. To write a file to a ext4 formatted partition.
|
||
|
|
a) First load a file to RAM at a particular address for example 0x30007fc0.
|
||
|
|
Now execute ext4write command
|
||
|
|
ext4write <interface> <dev[:part]> [filename] [Address] [sizebytes]
|
||
|
|
For example:
|
||
|
|
UBOOT #ext4write mmc 2:2 /boot/uImage 0x30007fc0 6183120
|
||
|
|
(here 6183120 is the size of the file to be written)
|
||
|
|
Note: Absolute path is required for the file to be written
|
||
|
|
|
||
|
|
References :
|
||
|
|
-- ext4 implementation in Linux Kernel
|
||
|
|
-- Uboot existing ext2 load and ls implementation
|
||
|
|
-- Journaling block device JBD2 implementation in linux Kernel
|