RE: XSysAce driver cant mount DOS part
From: Robertson, Joseph M. <hidden>
Date: 2007-07-12 19:17:12
Hi, I will try the new code you suggest. We are not supporting CF changes at all (factory only). RE: 2.6.17.1 being old. Well, old is relative. Once this works, and its 99% there, we won't change it. We'll probably be using this kernel for 3-5 years. In fact, at this point we've got 2.5 years invested, and about 4 months of testing already, so changing now is bad. That would mean I have to retest a whole bunch of stuff. Thanks, Joe Robertson Joseph.Robertson@sanmina-sci.com -----Original Message----- From: glikely@secretlab.ca on behalf of Grant Likely Sent: Thu 7/12/2007 2:06 PM To: Robertson, Joseph M. Cc: linuxppc-embedded@ozlabs.org Subject: Re: XSysAce driver cant mount DOS part On 7/12/07, Robertson, Joseph M. [off-list ref] wrote:
RE: Tree. Its the mainline 2.6.17.1, with denx ppc patches from 4.0.0? IIRC. I redid the patch set for the xsysace to get a known baseline. Its a custom build system, which I developed over the years, ported to use a ppc405 crosscompiler I made from CrossTool-0.42. Its very similar to uClinux, but with a simpler config system. The compiler is gcc.3.4.1 with glibc 2.3.3 (yeah we use glibc).
Heh, so do I. So do a lot of people. glibc *is* for embedded systems, regardless of what some may say. :-)
The XsysAce patch is in the normal place, only change I made was to define the major number. And I moved xbasic_types.c/h to another folder onthe path since xilinx_iic drivers uses it too, and I was getting redefine errors. One thing I just thought of was I did not run the 'normal' config stuff, any deps in there? I can go look at the kconfigs and see. RE: Xilinx SysAce driver The HW group used Xilinx env 8.2.02i, and the project shows Sysace_compactflash driver: sysace_v1_01_a
Okay, so that's the old driver. There is a new driver that has considerably better performance which you might want to try; but it doesn't support insertion/removal yet. It is about to be pulled into mainline, but you can get it here too: http://article.gmane.org/gmane.linux.kernel/526293/match=xsysace+c
The HW is a Virtex-4 with the embedded ppc405. The Xsysace chip is supposed tobe using irq_intr = 2. The system actually works fine using the Ext2 fs, but if we want to upgrade the fpga code, I need to be able to write to the dos part.
2.6.17 is rather old. You might be hitting an old bug. Virtex support in the newer kernels is significantly better. Have you considered upgrading? I've got a bunch of patches in my git tree that add the TEMAC and other drivers to a more recent kernel. My internal tree is based on 2.6.22; I'll try to update my external tree to match in the next day or so: http://git.secretlab.ca/cgi-bin/gitweb.cgi?h=virtex-dev;p=linux-2.6.git;a=shortlog Cheers, g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. grant.likely@secretlab.ca (403) 399-0195 CONFIDENTIALITY This e-mail message and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail message, you are hereby notified that any dissemination, distribution or copying of this e-mail message, and any attachments thereto, is strictly prohibited. If you have received this e-mail message in error, please immediately notify the sender and permanently delete the original and any copies of this email and any prints thereof. ABSENT AN EXPRESS STATEMENT TO THE CONTRARY HEREINABOVE, THIS E-MAIL IS NOT INTENDED AS A SUBSTITUTE FOR A WRITING. Notwithstanding the Uniform Electronic Transactions Act or the applicability of any other law of similar substance and effect, absent an express statement to the contrary hereinabove, this e-mail message its contents, and any attachments hereto are not intended to represent an offer or acceptance to enter into a contract and are not otherwise intended to bind the sender, Sanmina-SCI Corporation (or any of its subsidiaries), or any other person or entity.