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yaffs support on am335x

Lihua Zhu
Intellectual 900 points

Hi all,

Is there anyone who achieve yaffs support on am335x?

I tried but failed.

I used my current yaffs pack, when I run patch-ker.sh, it told me this version doesn't support kernel 3.2. So I downloaded the latest version from www.yaffs.net.

firstly, I run:

./patch-ker.sh c m linux-3.2/

the first problem I met is the Makefile in the yaffs2 directory:

yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o

but there is no file named yaffs_mtdif1.c yaffs_mtdif2.c in this version. there is only a yaffs_mtdif_multi.c

So I change the line to:

yaffs-y += yaffs_mtdif_multi.o

But at the time of the final link:

...

  LD      init/built-in.o
  LD      .tmp_vmlinux1
fs/built-in.o: In function `yaffs_guts_initialise':
yaffs_verify.c:(.text+0xef8a8): undefined reference to `yaffs_tags_marshall_install'
make: *** [.tmp_vmlinux1] error 1

So I run pach-ker.sh like this:

./patch-ker.sh c s linux-3.2/

More errors appear when compilation, I think it's not the right way.


Is there any one who can help me out?

Thank you very much.

Best regards,

Lihua



  • 0
    Intellectual 900 points

    Hi,

    Finally, I made it by myself.

    The issue still lies in the Makefile in the yaffs2 directory.

    function yaffs_tags_marshall_install  is defined in yaffs_tagsmarshall.c, so add a line in Makefile:

    yaffs-y += yaffs_tagsmarshall.o

    the kernel compilation succeed.

    Summary: we need modify the fs/yaffs2/Makefile like this:

    #
    # Makefile for the linux YAFFS filesystem routines.
    #

    obj-$(CONFIG_YAFFS_FS) += yaffs.o

    yaffs-y := yaffs_ecc.o yaffs_vfs.o yaffs_guts.o yaffs_checkptrw.o
    yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o
    yaffs-y += yaffs_tagscompat.o
    yaffs-y += yaffs_tagsmarshall.o
    #yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o
    yaffs-y += yaffs_mtdif_multi.o
    yaffs-y += yaffs_nameval.o yaffs_attribs.o
    yaffs-y += yaffs_allocator.o
    yaffs-y += yaffs_yaffs1.o
    yaffs-y += yaffs_yaffs2.o
    yaffs-y += yaffs_bitmap.o
    yaffs-y += yaffs_summary.o
    yaffs-y += yaffs_verify.o