From mboxrd@z Thu Jan 1 00:00:00 1970 From: Scott Wood Date: Wed, 05 Mar 2008 10:42:31 -0600 Subject: [U-Boot-Users] Question about NAND-Flash Support on MPC831x In-Reply-To: <200803051525.53723.sr@denx.de> References: <47CEA918.6090300@tqs.de> <200803051525.53723.sr@denx.de> Message-ID: <47CECD77.9010702@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Stefan Roese wrote: > On Wednesday 05 March 2008, Jens Gehrlein wrote: >> on 2007-05-16 16:28:05 GMT, Scott Wood submitted a patch with the subject: >> "[PATCH 2/2] NAND: Add mpc831x support." >> >> I can't find this patch in any repository. Even, there wasn't any reply >> to his e-mail. >> >> Was the patch rejected? > > Yes it was rejected. IIRC, there were some issues with a new "interface" that > was introduced to the NAND subsystem here (transparent hardware ECC). At that > time such an "interface" was not supported in Linux either. Not sure what the > current status here is. > > Scott, whats the current status? Has this support now been included to Linux > meanwhile? How should we continue here? Do you plan on resubmitting patches > for FSL NAND support? Please keep in mind that we still plan to switch to the > new U-Boot NAND subsystem rewrite done a few months ago, based on the Linux > 2.6.22 MTD sources. I recently got the Linux version of the driver merged; the newer Linux NAND subsystem code doesn't need all of the previous patches I sent for u-boot, though if you're basing off of 2.6.22 you'll need a couple patches that went in more recently than that (78b65179 Don't panic... and 1c45f604 Fix misparenthesization...). >> What's about the current state of NAND-Flash Support for MPC831x in >> U-Boot using the FCM concerning: >> - Read/Write/Erase Access I'll try to get a new patch for this out soon. >> - Booting from NAND There's an un-cleaned-up patch from the BSP sitting around on my hard disk... It's a rather intrusive patch (mostly due to the need to get RAM going with only 4K of code), so it'll need some looking over before I submit. Not likely for the upcoming merge window, but maybe the next one if my schedule permits. -Scott