fs: fat: add kbuild configuration support
Add Kconfig symbols for various configurations
supported by FAT filesystem support code.
CONFIG_SUPPORT_VFAT has been left out since its
force enabled in include/fat.h and probably
should get removed at some point.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
[trini: add select FS_FAT for CMD_FAT and SPL_FAT_SUPPORT]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 6f75b86..270cff6 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1166,6 +1166,7 @@
config CMD_FAT
bool "FAT command support"
+ select FS_FAT
help
Support for the FAT fs
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index eabb2d0..48a0fad 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -306,6 +306,7 @@
config SPL_FAT_SUPPORT
bool "Support FAT filesystems"
depends on SPL
+ select FS_FAT
help
Enable support for FAT and VFAT filesystems with SPL. This
permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT
diff --git a/fs/fat/Kconfig b/fs/fat/Kconfig
index e69de29..e7978aa 100644
--- a/fs/fat/Kconfig
+++ b/fs/fat/Kconfig
@@ -0,0 +1,24 @@
+config FS_FAT
+ bool "Enable FAT filesystem support"
+ help
+ This provides support for reading images from File Allocation Table
+ (FAT) filesystem. FAT filesystem is a legacy, lightweight filesystem.
+ It is useful mainly for its wide compatibility with various operating
+ systems. You can also enable CMD_FAT to get access to fat commands.
+
+config FAT_WRITE
+ bool "Enable FAT filesystem write support"
+ depends on FS_FAT
+ help
+ This provides support for creating and writing new files to an
+ existing FAT filesystem partition.
+
+config FS_FAT_MAX_CLUSTSIZE
+ int "Set maximum possible clusersize"
+ default 65536
+ depends on FS_FAT
+ help
+ Set the maximum possible clustersize for the FAT filesytem. This
+ is the smallest amount of disk space that can be used to hold a
+ file. Unless you have an extremely tight memory memory constraints,
+ leave the default.