# 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.
+#
+# $Id: Makefile,v 1.10 2003-03-11 05:16:53 charles Exp $
+#
## 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
-USE_RAM_FOR_TEST = -DYAFFS_RAM_ENABLED
-USE_MTD = -DYAFFS_MTD_ENABLED
+
+## Change if you are using a cross-compiler
+MAKETOOLS =
+
+CC=$(MAKETOOLS)gcc
+LD=$(MAKETOOLS)ld
+
+# 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
+
+# CONFIG_YAFFS_USE_OLD_MTD
+# Enable this to use the old MTD stuff that did not have yaffs support.
+# You can use this to get around compilation problems, but the best
+# thing to do is to upgrade your MTD support. You will get better speed.
+
+#USE_OLD_MTD = -DCONFIG_YAFFS_USE_OLD_MTD
+
+# CONFIG_YAFFS_USE_NANDECC
+# This enables the ECC functions of the generic MTD-NAND driver.
+# This will not work if you are using the old mtd.
+#
+# NB UseNANDECC does not work at present with yaffsram.
+
+USE_NANDECC = -DCONFIG_YAFFS_USE_NANDECC
+
+# 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
+
+#CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+# If this config is set, then short names are stored with the yaffs_Object
+# This costs an extra 16 bytes of RAM per object, but makes look-ups faster.
+
+ENABLE_SHORT_NAMES_IN_RAM = -DCONFIG_SHORT_NAMES_IN_RAM
+
+# End of configuration options.
+
+YAFFS_CONFIGS = $(USE_RAM_FOR_TEST) $(USE_MTD) $(USE_GENERIC_RW) $(USE_HEADER_FILE_SIZE) $(IGNORE_CHUNK_ERASED) $(IGNORE_WRITE_VERIFY) \
+ $(ENABLE_SHORT_NAMES_IN_RAM) $(USE_NANDECC) $(USE_OLD_MTD)
-CFLAGS = -D__KERNEL__ -DMODULE $(USE_RAM_FOR_TEST) $(USE_MTD) -I$(KERNELDIR)/include -O2 -Wall
+CFLAGS = -D__KERNEL__ -DMODULE $(YAFFS_CONFIGS) -I$(KERNELDIR)/include -O2 -Wall
-OBJS = yaffs_fs.o yaffs_guts.o yaffs_ramem.o yaffs_mtdif.o
+OBJS = yaffs_fs.o yaffs_guts.o yaffs_ramem.o yaffs_mtdif.o nand_ecc.o
all: yaffs.o
-$(OBJS): %.o: %.c
- gcc -c $(CFLAGS) $< -o $@
+$(OBJS): %.o: %.c Makefile
+ $(CC) -c $(CFLAGS) $< -o $@
yaffs.o: $(OBJS)
- ld -r $(OBJS) -o $@
+ $(LD) -r $(OBJS) -o $@
clean:
rm -f $(OBJS) core
projects / yaffs / .git / blobdiff