Add Wistron RPAA-82 board support

[Eric]

On Mon, 2009-11-02 at 14:23 +1300, Andrew Thompson wrote:
> On Mon, Nov 02, 2009 at 09:18:45AM +0800, Eric wrote:
> > On Wed, 2009-10-28 at 22:52 -0700, Oleksandr Tymoshenko wrote:
> > >      There are some excessive code in the patch. e.g. GEOM will take care for
> > > use that data offset and size are sector-size aligned/multiple. So I reworked
> > > your patch a little bit:
> > >      http://people.freebsd.org/~gonzo/mips/mx25.diff
> > > 
> > > Could you, please, test it and let me know if it works for you.
> > > 
> > > Thanks!
> > 
> > It cannot format redboot partition by newfs:
> > uhub1: 2 ports with 2 removable, self powered
> > redboot/fbsd-root.uzip: 6144 x 8192 blocks
> > Trying to mount root from ufs:/dev/redboot/fbsd-root.uzip
> > warning: no time-of-day clock registered, system time will not be set
> > accurately
> > start_init: trying /etc/init
> > eval: cannot create /flash/hostid: Read-only file system
> > /etc/rc: WARNING: could not store hostuuid in /flash/hostid.
> > mount: /dev/ufs/config : No such file or directory
> > Mounting /etc/fstab filesystems failed,  startup aborted
> > ERROR: ABORTING BOOT (sending SIGTERM to parent)!
> > Oct 27 01:58:39 init: /bin/sh on /etc/rc terminated abnormally, going to
> > single user mode
> > Enter full pathname of shell or RETURN for /bin/sh: 
> >                                                     # 
> > # 
> > # df
> > Filesystem                  512-blocks  Used Avail Capacity  Mounted on
> > /dev/redboot/fbsd-root.uzip      98078 62252 27980    69%    /
> > devfs                                2     2     0   100%    /dev
> > # ls /dev/redboot
> > FIS directory	RedBoot config	fbsd-kern	fbsd-root.uzip	vmlinux.bin.l7
> > RedBoot		fbsd-data	fbsd-root	rootfs
> > # newfs -n -o space -L config -O 1 -b 4096 -f 512 /dev/redboot/fbsd-data
> > /dev/redboot/fbsd-data: 0.6MB (1280 sectors) block size 4096, fragment
> > size 512
> > 	using 4 cylinder groups of 0.16MB, 41 blks, 96 inodes.
> > super-block backups (for fsck -b #) at:
> > newfs: wtfs: 20480 bytes at sector 32: Invalid argument
> 
> The problem here is the flash sector size is 64k. Pretending the flash
> has a 512b sector isnt the right way, you would be better off having a
> geom class to do the transformation+caching.
> 
> 
> Andrew

So, the better way is that add a new geom class to support different
erase and program size?
I referred XOR flash sys/dev/cfi/cfi_disk.c at first. It set disk sector
size to 512 even erase size is 128k.



-- 
Best Regards,
Eric L. Chen <lihong at ieee.org>