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#Makefile for YAFFS as a module
#
# NB this is not yet suitable for putting into the kernel tree.
# YAFFS: Yet another FFS. A NAND-flash specific file system. 
#
# Copyright (C) 2002 Aleph One Ltd.
#   for Toby Churchill Ltd and Brightstar Engineering
#
# Created by Charles Manning <[e-mail]>
#
# Modified by N C Bane 22/11/2002 for inclusion in kernel as root fs.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.

## Change or override  KERNELDIR to your kernel
## comment out USE_xxxx if you don't want these features.

#KERNELDIR = /usr/src/kernel-headers-2.4.18
#KERNELDIR = /usr/src/linux

# Configurations...
# Comment out the stuff you don't want.
#

# CONFIG_YAFFS_RAM_ENABLED.
# This adds the yaffsram file system support. Nice for testing on x86, but uses 2MB of RAM.
# Don't enable for NAND-based targets.

#USE_RAM_FOR_TEST = -DCONFIG_YAFFS_RAM_ENABLED


# CONFIG_YAFFS_MTD_ENABLED.
# This adds the yaffs file system support for working with a NAND mtd.

USE_MTD = -DCONFIG_YAFFS_MTD_ENABLED
MTD_OLD = -DCONFIG_YAFFS_USE_OLD_MTD

# CONFIG_YAFFS_USE_GENERIC_RW
# Use generic_read/generic_write for reading/writing files. This enables the use of the Linux
# file caching layer.
#
# If you disable this, then caching is disabled and file read/write is direct.

USE_GENERIC_RW = -DCONFIG_YAFFS_USE_GENERIC_RW

# CONFIG_YAFFS_USE_HEADER_FILE_SIZE
# When the flash is scanned, two file sizes are constructed:
# * The size taken from the object header for the file.
# * The size figured out by scanning the data chunks.
# If this option is enabled, then the object header size is ued, otherwise the scanned size is used.
# Suggest leaving this disabled.

#USE_HEADER_FILE_SIZE = -DCONFIG_YAFFS_USE_HEADER_FILE_SIZE

#CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK
# Enabling this turns off the test that chunks are erased in flash before writing to them.
# this is safe, since the write verification will fail.
# Suggest enabling the test (ie. keep the following line commented) during development to help debug things.

#IGNORE_CHUNK_ERASED = -DCONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK

#CONFIG_YAFFS_DISABLE_WRITE_VERIFY
# I am severely reluctant to provide this config. Disabling the verification is not a good thing to do
# since NAND writes can fail silently.
# Disabling the write verification will cause your teeth to rot, rats to eat your corn and give you split ends.
# You have been warned. ie. Don't uncomment the following line.

#IGNORE_WRITE_VERIFY = -DCONFIG_YAFFS_DISBLE_WRITE_VERIFY

# End of configuration options.

YAFFS_CONFIGS = $(USE_RAM_FOR_TEST) $(USE_MTD) $(MTD_OLD) $(USE_GENERIC_RW) $(USE_HEADER_FILE_SIZE) $(IGNORE_CHUNK_ERASED) $(IGNORE_WRITE_VERIFY)

#CFLAGS = -D__KERNEL__ -DMODULE $(YAFFS_CONFIGS)  -I$(KERNELDIR)/include -O2 -Wall


#OBJS = yaffs_fs.o yaffs_guts.o yaffs_ramem.o yaffs_mtdif.o nand_ecc.o


#all: yaffs.o

#$(OBJS): %.o: %.c Makefile
#	gcc -c $(CFLAGS) $< -o $@

#yaffs.o: $(OBJS)
#	ld -r $(OBJS) -o $@

#clean:
#	rm -f $(OBJS) core

#
# Makefile for the Linux yaffs filesystem.
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (not a .c file).
#
# Note 2! The CFLAGS definitions are now in the main makefile.

O_TARGET := yaffs.o

#//obj-y   := yaffs_fs.o yaffs_guts.o yaffs_mtdif.o nand_ecc.o
obj-y   := yaffs_fs.o yaffs_guts.o yaffs_mtdif.o yaffs_ecc.o
obj-m   := $(O_TARGET)

EXTRA_CFLAGS += $(YAFFS_CONFIGS)

include $(TOPDIR)/Rules.make