[U-Boot] [PATCH] nand: add ID for Micron MT29F8G08A

[Scott Wood]

On 09/27/2012 05:19:23 PM, Lucas Stach wrote:
> Am Donnerstag, den 27.09.2012, 17:13 -0500 schrieb Scott Wood:
> > On 09/27/2012 05:08:03 PM, Lucas Stach wrote:
> > > Am Donnerstag, den 27.09.2012, 16:53 -0500 schrieb Scott Wood:
> > > > On 09/27/2012 04:49:31 PM, Lucas Stach wrote:
> > > > > As found on the Colibri T20 engineering sample board.
> > > > >
> > > > > Signed-off-by: Lucas Stach <dev at lynxeye.de>
> > > > > ---
> > > > >  drivers/mtd/nand/nand_ids.c | 1 +
> > > > >  1 Datei geändert, 1 Zeile hinzugefügt(+)
> > > > >
> > > > > diff --git a/drivers/mtd/nand/nand_ids.c
> > > b/drivers/mtd/nand/nand_ids.c
> > > > > index 3953549..ae300fe 100644
> > > > > --- a/drivers/mtd/nand/nand_ids.c
> > > > > +++ b/drivers/mtd/nand/nand_ids.c
> > > > > @@ -105,6 +105,7 @@ const struct nand_flash_dev  
> nand_flash_ids[]
> > > = {
> > > > >  	{"NAND 512MiB 3,3V 16-bit",	0xCC, 0, 512, 0,  
> LP_OPTIONS16},
> > > > >
> > > > >  	/* 8 Gigabit */
> > > > > +	{"NAND 1GiB 3,3V 8-bit",	0x38, 0, 1024, 0,  
> LP_OPTIONS},
> > > > >  	{"NAND 1GiB 1,8V 8-bit",	0xA3, 0, 1024, 0,  
> LP_OPTIONS},
> > > > >  	{"NAND 1GiB 3,3V 8-bit",	0xD3, 0, 1024, 0,  
> LP_OPTIONS},
> > > > >  	{"NAND 1GiB 1,8V 16-bit",	0xB3, 0, 1024, 0,  
> LP_OPTIONS16},
> > > > > --
> > > > > 1.7.11.4
> > > >
> > > > Does this chip support ONFI?  If so, we don't use the ID table.
> > > >
> > > I just rechecked, the datasheet claims the chip supports ONFI  
> 2.0, but
> > > it does not get detected by the u-boot NAND code without the  
> entry in
> > > the id table. CONFIG_SYS_NAND_ONFI_DETECTION is set.
> >
> > Could you debug it?  Could there be a problem in the NAND controller
> > (or the driver)?
> >
> Haven't done much in tracking this down much further. Could quite
> possible be a bug in the Tegra nand driver, this driver isn't in tree
> for a long time and it seems no Tegra board so far tried using ONFI.

I don't see the Tegra READID code using column, which is a problem.   
Hopefully this is a driver limitation and not hardware, unlike i.MX.

-Scott