On Wed, 8 Oct 2008 21:26:34 -0700 "Liu Dave-R63238" <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Anton Vorontsov > > Sent: 2008?10?9? 12:53 AM > > To: Phillips Kim-R1AAHA > > Cc: u-boot@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 <[EMAIL PROTECTED]> applied to 83xx-next. thanks guys, Kim _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
