Linux2.6.34.2在tq6410上的移植详解（二）

7．添加yaffs文件系统的支持:
1、下载Yaffs2
      http://www.aleph1.co.uk/cgi-bin/viewcvs.cgi/
2、解压Yaffs2并将其加入Linux内核（打补丁的方式）
       #cd yaffs2
       #./patch-ker.sh c /linux-2.6.34.2/
3.        修改配置文件，添加对yaffs文件系统的支持（同时也支持cramfs和nfs文件系统）
        File systems --->
Miscellaneous filesystems --->
<*> YAFFS2 file system support
-*- 512 byte / page devices
[ ] Use older-style on-NAND data format with pageStatus byte
[ ] Lets Yaffs do its own ECC
-*- 2048 byte (or larger) / page devices

Autoselect yaffs2 format
[ ] Disable lazy loading
[ ] Turn off wide tnodes
[ ] Force chunk erase check

Cache short names in RAM
< > Journalling Flash File System v2 (JFFS2) support
<*> Compressed ROM file system support (cramfs)

Network File Systems --->
--- Network File Systems
最后重新编译烧写到开发板，打印信息为：
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
Scanning device for bad blocks
Bad eraseblock 517 at 0x0000040a0000
Bad eraseblock 1383 at 0x00000ace0000
Bad eraseblock 1737 at 0x00000d920000
Bad eraseblock 1897 at 0x00000ed20000
Bad eraseblock 1968 at 0x00000f600000
Creating 3 MTD partitions on "NAND 256MiB 3,3V 8-bit":
0x000000000000-0x000000040000 : "u-boot"
0x000000200000-0x000000500000 : "Kernel"
0x000000500000-0x000010000000 : "Yaffs2"
mice: PS/2 mouse device common for all mice
i2c /dev entries driver
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
s3c-sdhci s3c-sdhci.0: clock source 0: hsmmc (133000000 Hz)
s3c-sdhci s3c-sdhci.0: clock source 1: hsmmc (133000000 Hz)
s3c-sdhci s3c-sdhci.0: clock source 2: mmc_bus (24000000 Hz)
mmc0: SDHCI controller on samsung-hsmmc [s3c-sdhci.0] using PIO
TCP cubic registered
VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
。。。
yaffs: dev is 32505858 name is "mtdblock2"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 31.2, "mtdblock2"
block 478 is bad
block 1344 is bad
block 1698 is bad
block 1858 is bad
block 1929 is bad
yaffs_read_super: isCheckpointed 0
VFS: Mounted root (yaffs2 filesystem).
Freeing init memory: 140K
Warning: unable to open an initial console.
Kernel panic - not syncing: No init found.  Try passing init= option to kernel.Kernel panic - not syncing:
Backtrace:
[<c0025c34>] (dump_backtrace+0x0/0x10c) from [<c023caf4>] (dump_stack+0x18/0x1c)
r7:c0318350 r6:00008000 r5:c0339cb0 r4:c7c27f40
[<c023cadc>] (dump_stack+0x0/0x1c) from [<c023cb44>] (panic+0x4c/0xd0)
[<c023caf8>] (panic+0x0/0xd0) from [<c0008fc0>] (mount_block_root+0x178/0x234)
r3:00000000 r2:c7c3af2c r1:c7c27f40 r0:c02d5a38
[<c0008e48>] (mount_block_root+0x0/0x234) from [<c000912c>] (mount_root+0xb0/0xf4)
[<c000907c>] (mount_root+0x0/0xf4) from [<c0009278>] (prepare_namespace+0x108/0x1c8)
r7:c001e378 r6:c0339600 r5:c001e378 r4:c001e388
[<c0009170>] (prepare_namespace+0x0/0x1c8) from [<c00084ec>] (                                        kernel_init+0x118/0x160)
r7:00000000 r6:c001d8b8 r5:c001db68 r4:c001db68
[<c00083d4>] (kernel_init+0x0/0x160) from [<c0041c44>] (do_exit+0x0/0x640)
r7:00000000 r6:00000000 r5:00000000 r4:00000000
文件系统还没有移植好所以只能到这了只完成了基本功能的制作