[poky] [PATCH v2 0/3] meta-yocto-bsp: enable the jffs2 for mpc8315e-rdb board

[Bruce Ashfield]

On 2014-06-13, 9:47 PM, Kevin Hao wrote:
> Hi,
>
> v2:
> Add the example about booting from jffs2 root in README.hardware
>

Looks good to me.

As promised, I stacked these on top of my kernel update for NAND support
on the board.

If all goes well, I'll send the merge pull request tomorrow.

Bruce

> v1:
> 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 flash_eraseall has been replaced by `flash_erase 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)
>
> The following changes since commit 8e0c54cd0e82ffe120f84f495101cd29e6fd06bf:
>
>    bitbake: bb/utils: fix contains_any() (2014-06-12 17:47:59 +0100)
>
> are available in the git repository at:
>
>    git://git.yoctoproject.org/poky-contrib hao/master
>
> for you to fetch changes up to 05ef8967ff189b16485e1a462c8de1ed74a08a32:
>
>    mpc8315e-rdb: add the example about booting from jffs2 root (2014-06-14 09:24:26 +0800)
>
> ----------------------------------------------------------------
> Kevin Hao (3):
>        mpc8315e-rdb: bump to linux-yocto 3.14
>        mpc8315e-rdb: add the jffs2 image support
>        mpc8315e-rdb: add the example about booting from jffs2 root
>
>   README.hardware                                          | 16 ++++++++++++++++
>   meta-yocto-bsp/conf/machine/mpc8315e-rdb.conf            |  5 ++++-
>   .../recipes-kernel/linux/linux-yocto_3.14.bbappend       |  3 +++
>   3 files changed, 23 insertions(+), 1 deletion(-)
>