spl: fat/fs: Add option to include/exclude FAT write build in SPL
Most of the time SPL only needs very simple FAT reading, so having
CONFIG_IS_ENABLED(FAT_WRITE) to exclude it from SPL build would help
to save 64KiB default max clustersize from memory.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/fs/fat/Makefile b/fs/fat/Makefile
index e64b61a..f84efac 100644
--- a/fs/fat/Makefile
+++ b/fs/fat/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0+
#
-obj-$(CONFIG_FS_FAT) := fat.o
-obj-$(CONFIG_FAT_WRITE):= fat_write.o
+obj-$(CONFIG_$(SPL_)FS_FAT) = fat.o
+obj-$(CONFIG_$(SPL_)FAT_WRITE) = fat_write.o