[U-Boot] [PATCH] mpc83xx: add ELBC NAND support for the MPC837XEMDSboards

[Kim Phillips]

On Wed, 8 Oct 2008 21:26:34 -0700
"Liu Dave-R63238" <DaveLiu at freescale.com> wrote:

> It is due to hardware design and logic defect, that is the
> I/O[0:7] of NAND chip is connected to LAD[7:0], so when
> the NAND chip connected to nLCS3,  you have to set up the
> OR3[BCTLD] = '1' for normal operation, otherwise it will have
> bus contention due to the pin 48/25 of U60 is enabled.
> 
> Setup the OR3[BCTLD] = '1' , that meaning the LBCTL is not
> asserted upon access to the NAND chip, keep the default state.
> 
> Acked-by: Dave Liu <daveliu at freescale.com>
> 
> 
> > -----Original Message-----
> > From: u-boot-bounces at lists.denx.de 
> > [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Anton Vorontsov
> > Sent: 2008?10?9? 12:53 AM
> > To: Phillips Kim-R1AAHA
> > Cc: u-boot at lists.denx.de
> > Subject: [U-Boot] [PATCH] mpc83xx: add ELBC NAND support for 
> > the MPC837XEMDSboards
> > 
> > Though NAND chip is replaceable on the MPC837XE-MDS boards, the
> > current settings don't work with the default chip on the board.
> > Nevertheless Freescale's U-Boot sets the option register correctly,
> > so I just dumped the register from the working u-boot. My guess is
> > that the old settings were applicable for some pilot boards, not
> > found in the production.
> > 
> > This patch also enables FSL ELBC driver so that we could access
> > the NAND storage in the u-boot.
> > 
> > The NAND support costs about 45KB, so the u-boot no longer fits
> > into two 128KB NOR flash sectors, thus we also have to adjust
> > environment location: add another 128KB to the monitor length.
> > 
> > Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>

applied to 83xx-next.

thanks guys,

Kim