[linux-yocto] Enable the jffs2 support for mpc8315e-rdb board

[Bruce Ashfield]

On 14-06-11 09:20 PM, Kevin Hao wrote:
> Hi,
>
> This tries to enable the jffs2 support for the mpc8315e-rdb board. I have
> tested the jffs2 with the following steps and it worked perfectly.
>
> 1. root at mpc8315e-rdb:~# cat /proc/mtd
> dev:    size   erasesize  name
> mtd0: 00800000 00010000 "fe000000.flash"
> mtd1: 00100000 00004000 "u-boot"
> mtd2: 00300000 00004000 "kernel"
> mtd3: 01c00000 00004000 "fs"
>
> 2. root at mpc8315e-rdb:~# flash_eraseall  /dev/mtd3
> flash_eraseall has been replaced by `flash_erase <mtddev> 0 0`; please use it
> Erasing 16 Kibyte @ 1bec000 -- 99 % complete flash_erase: Skipping bad block at 01bf0000
> flash_erase: Skipping bad block at 01bf4000
> flash_erase: Skipping bad block at 01bf8000
> flash_erase: Skipping bad block at 01bfc000
> Erasing 16 Kibyte @ 1bfc000 -- 100 % complete
>
> 3. root at mpc8315e-rdb:~# flashcp core-image-minimal-mpc8315e-rdb.jffs2 /dev/mtd3
>
> 4. Then boot with a jffs2 rootfs
>
> 5. root at mpc8315e-rdb:~# cat /proc/cmdline
> root=/dev/mtdblock3 rootfstype=jffs2 console=ttyS0,115200
> root at mpc8315e-rdb:~#
> root at mpc8315e-rdb:~# mount
> rootfs on / type rootfs (rw)
> /dev/root on / type jffs2 (rw,relatime)
> devtmpfs on /dev type devtmpfs (rw,relatime,size=59136k,nr_inodes=14784,mode=755)
> proc on /proc type proc (rw,relatime)
> sysfs on /sys type sysfs (rw,relatime)
> debugfs on /sys/kernel/debug type debugfs (rw,relatime)
> tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
> tmpfs on /var/volatile type tmpfs (rw,relatime)
> devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620)

Thanks Kevin .. this looks good to me. I'll get this merged into the tree
shortly.

Cheers,

Bruce

>
>
> kernel:
>   fs/yaffs2/yaffs_vfs.c | 10 +++-------
>   1 file changed, 3 insertions(+), 7 deletions(-)
>
> meta:
>   meta/cfg/kernel-cache/bsp/fsl-mpc8315e-rdb/fsl-mpc8315e-rdb.cfg | 1 +
>   meta/cfg/kernel-cache/bsp/fsl-mpc8315e-rdb/fsl-mpc8315e-rdb.scc | 1 +
>   2 files changed, 2 insertions(+)
>
> Thanks,
> Kevin
>