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fs: Migrate ext4 to Kconfig

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Migrate the following symbols to Kconfig:

CONFIG_FS_EXT4
CONFIG_EXT4_WRITE

The definitions in config_fallbacks.h can now be expressed in Kconfig.

Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
This commit is contained in:
Tuomas Tynkkynen
2018-01-05 02:45:17 +02:00
committed by Tom Rini
parent 6574864df8
commit 3d22bae57f
21 changed files with 29 additions and 62 deletions
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22
doc/README.ext4
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@@ -2,10 +2,10 @@ U-Boot supports access of both ext2 and ext4 filesystems, either in read-only
mode or in read-write mode.
First, to enable support for both ext4 (and, automatically, ext2 as well),
but without selecting the corresponding commands, use one of:
but without selecting the corresponding commands, enable one of the following:
#define CONFIG_FS_EXT4 (for read-only)
#define CONFIG_EXT4_WRITE (for read-write)
CONFIG_FS_EXT4 (for read-only)
CONFIG_EXT4_WRITE (for read-write)
Next, to select the ext2-related commands:
@@ -20,22 +20,22 @@ or ext4-related commands:
use one or both of:
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_EXT4
CONFIG_CMD_EXT2
CONFIG_CMD_EXT4
Selecting either of the above automatically defines CONFIG_FS_EXT4 if it
wasn't defined already.
Selecting either of the above automatically selects CONFIG_FS_EXT4 if it
wasn't enabled already.
In addition, to get the write access command "ext4write", use:
In addition, to get the write access command "ext4write", enable:
#define CONFIG_CMD_EXT4_WRITE
CONFIG_CMD_EXT4_WRITE
which automatically defines CONFIG_EXT4_WRITE if it wasn't defined
which automatically selects CONFIG_EXT4_WRITE if it wasn't defined
already.
Also relevant are the generic filesystem commands, selected by:
#define CONFIG_CMD_FS_GENERIC
CONFIG_CMD_FS_GENERIC
This does not automatically enable EXT4 support for you, you still need
to do that yourself.