[U-Boot] [PATCH v4 05/20] fs: Enable generic filesystems interface support in SPL.

[tien.fong.chee at intel.com]

From: Tien Fong Chee <tien.fong.chee at intel.com>

Enable generic filesystem interface drivers(fs.c and fat/) build
for SPL. This would allow generic filesystem being used in SPL.

Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
 common/spl/Kconfig | 8 ++++++++
 doc/README.SPL     | 1 +
 fs/Makefile        | 1 +
 3 files changed, 10 insertions(+)

diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index b05ec21..ca25a2d 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -304,6 +304,14 @@ config SPL_ETH_SUPPORT
 	  is required since the network stack uses a number of environment
 	  variables. See also SPL_NET_SUPPORT.
 
+config SPL_FS_GENERIC
+	bool "Support Generic filesystems interface driver"
+	help
+	  Enable support for generic filesystems interface with SPL. This
+	  permits U-Boot (or Linux in Falcon mode) to be loaded from a generic
+	  filesystem from within SPL. Support for the underlying block
+	  device (e.g. MMC or USB) must be enabled separately.
+
 config SPL_EXT_SUPPORT
 	bool "Support EXT filesystems"
 	help
diff --git a/doc/README.SPL b/doc/README.SPL
index 3ba313c..32628a4 100644
--- a/doc/README.SPL
+++ b/doc/README.SPL
@@ -55,6 +55,7 @@ CONFIG_SPL_SPI_FLASH_SUPPORT (drivers/mtd/spi/libspi_flash.o)
 CONFIG_SPL_SPI_SUPPORT (drivers/spi/libspi.o)
 CONFIG_SPL_FAT_SUPPORT (fs/fat/libfat.o)
 CONFIG_SPL_EXT_SUPPORT
+CONFIG_SPL_FS_GENERIC (fs/fs.o fat/)
 CONFIG_SPL_LIBGENERIC_SUPPORT (lib/libgeneric.o)
 CONFIG_SPL_POWER_SUPPORT (drivers/power/libpower.o)
 CONFIG_SPL_NAND_SUPPORT (drivers/mtd/nand/libnand.o)
diff --git a/fs/Makefile b/fs/Makefile
index 5770f41..fdacac8 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -7,6 +7,7 @@
 #
 
 ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_SPL_FS_GENERIC) += fs.o fat/
 obj-$(CONFIG_SPL_FAT_SUPPORT) += fat/
 obj-$(CONFIG_SPL_EXT_SUPPORT) += ext4/
 else
-- 
2.2.0