[poky] [PATCH 0/2] meta-yocto-bsp: enable the jffs2 for mpc8315e-rdb board

[Bruce Ashfield]

On 14-06-13 03:04 AM, Richard Purdie wrote:
> On Fri, 2014-06-13 at 12:39 +0800, 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 flash_eraseall has been replaced by `flash_erase 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)
>
> Can you please put this information into the README.hardware in
> meta-yocto-bsp so that others can find it, its useful to know how to use
> jffs2 on the default...

Agreed.

Bruce

>
> Cheers,
>
> Richard
>