Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 28 Sep 2002 07:02:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 28 Sep 2002 07:02:31 -0400 Received: from as2-4-3.an.g.bonet.se ([194.236.34.191]:2432 "EHLO zigo.dhs.org") by vger.kernel.org with ESMTP id ; Sat, 28 Sep 2002 07:02:31 -0400 Date: Sat, 28 Sep 2002 13:07:51 +0200 (CEST) From: =?ISO-8859-1?Q?Dennis_Bj=F6rklund?= To: linux-kernel@vger.kernel.org Subject: detect udma66 cable (vt82c686a) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2695 Lines: 60 I can't get my Gigabyte 7ZX-1 to detect my udma66 cable. It is a brand new ata66/100 cable so I believe that the cable is not the problem. As seen from /proc/ide/via below it thinks my cable is a 40w (on id0 I do have a 40w so that is correct, but in ide1 there is a 80w). I've also tried to boot with ide1=ata66 and then it says that the transfer rate is 66.0MB/s, but it still detects the cable as 40w. hdparam -t gave bigger values when booting with ata66 so something changes to the better. But I would prefer if it was autodetected and to know why it does not work in the first place. Also I don't know what bad can come from forcing it to ata66. The computer is a redhat 7.3 with kernel 2.4.18-4 After searching the archives and finding others with similar problems I really thought that booting with ata66 was going to make it detect my cable, but no. Or maybe it does work correctly when forced even though it still says 40w? Any help is appreciated! # cat /proc/ide/via ----------VIA BusMastering IDE Configuration---------------- Driver Version: 3.29 South Bridge: VIA vt82c686a Revision: ISA 0x22 IDE 0x10 Highest DMA rate: UDMA66 BM-DMA base: 0xffa0 PCI clock: 33MHz Master Read Cycle IRDY: 0ws Master Write Cycle IRDY: 0ws BM IDE Status Register Read Retry: yes Max DRDY Pulse Width: No limit -----------------------Primary IDE-------Secondary IDE------ Read DMA FIFO flush: yes yes End Sector FIFO flush: no no Prefetch Buffer: yes yes Post Write Buffer: yes yes Enabled: yes yes Simplex only: no no Cable Type: 40w 40w -------------------drive0----drive1----drive2----drive3----- Transfer Mode: UDMA PIO UDMA PIO Address Setup: 30ns 120ns 30ns 120ns Cmd Active: 90ns 90ns 90ns 90ns Cmd Recovery: 30ns 30ns 30ns 30ns Data Active: 90ns 330ns 90ns 330ns Data Recovery: 30ns 270ns 30ns 270ns Cycle Time: 60ns 600ns 60ns 600ns Transfer Rate: 33.0MB/s 3.3MB/s 33.0MB/s 3.3MB/s -- /Dennis - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/