sheevaplug nand type not recognized?

[Ian Lepore]

On Thu, 2012-12-13 at 00:16 +0100, Ronald Klop wrote:
> On Wed, 12 Dec 2012 23:58:24 +0100, Ian Lepore  
> <freebsd at damnhippie.dyndns.org> wrote:
> 
> > On Wed, 2012-12-12 at 23:41 +0100, Ronald Klop wrote:
> >> Hello,
> >>
> >> I just compiled a FreeBSD-10-current (src from 22 Nov.) kernel+world and
> >> installed it on a usb stick.
> >> It has NAND support compiled in, but I see no nand devices in /dev.
> >> Dmesg does not list a lnand0 device like the example in
> >> http://wiki.freebsd.org/NAND#NAND_Framework.
> >>
> >> Booting Debian finds this:
> >> ...
> >> NAND device: Manufacturer ID: 0xec, Chip ID: 0xdc (Samsung NAND 512MiB
> >> 3,3V 8-bit)
> >> Scanning device for bad blocks
> >> Bad eraseblock 168 at 0x000001500000
> >> Bad eraseblock 169 at 0x000001520000
> >> Bad eraseblock 1193 at 0x000009520000
> >> 2 cmdlinepart partitions found on MTD device orion_nand
> >> Creating 2 MTD partitions on "orion_nand":
> >> 0x000000100000-0x000000500000 : "uImage"
> >> 0x000000500000-0x000020000000 : "rootfs"
> >> UBI: attaching mtd1 to ubi0
> >> ...
> >>
> >> I don't see this Samsung version in sys/dev/nand/nand_id.c.
> >> Would it be easy to add it? I understand the manufacturer id and chip  
> >> id,
> >> but I don't know what I should change more.
> >
> > That looks like the same chip that's in my DreamPlug 1001N, the attached
> > diff should fix it for you.
> >
> > -- Ian
> >
> 
> Supernice!
> 
> nand0: <Marvell NAND controller> mem 0xf9300000-0xf93fffff on localbus0
> nandbus0: <NAND bus> on nand0
> lnand0: <Samsung NAND 512MiB 3,3V 8-bit> on nandbus0
> lnand0: No BBT found. Prescan chip...
> ##lnand0: Bad block(168)
> lnand0: Bad block(169)
> ##########lnand0: Bad block(1193)
> #############################
> 
> 
> root at sh10:~ # ls -l /dev/*nand*
> crw-r-----  1 root  operator  0x2f Dec 12 23:09 /dev/gnand.raw0
> crw-r-----  1 root  operator  0x33 Dec 12 23:09 /dev/gnand.raw0s.root
> crw-r-----  1 root  operator  0x32 Dec 12 23:09 /dev/gnand.raw0s.u-boot
> crw-r-----  1 root  operator  0x2e Dec 12 23:09 /dev/gnand0
> crw-r-----  1 root  operator  0x31 Dec 12 23:09 /dev/gnand0s.root
> crw-r-----  1 root  operator  0x30 Dec 12 23:09 /dev/gnand0s.u-boot
> crw-rw-rw-  1 root  wheel     0x19 Dec 12 23:09 /dev/nand0.0
> 
> Now I can't go to sleep without playing some more with it. :-)
> 
> Cheers,
> Ronald.

Heh.  Be careful.  My dreamplug 1001N is a brick because I typed a
command in the wrong window and wiped the nand on it, and I haven't had
any success trying to use openocd to flash it (or even get it to boot as
a one-shot).

-- Ian