[PATCH] ide: disable dma for transcend CF

From: Kirill Smelkov
Date: Tue Jun 20 2006 - 06:52:02 EST


NB: bart/ide-2.6.git seems to be unmaintained, so I'm sending this directly to -mm

I have a CF card which identifies itself as model=TRANSCEND rev=200508011
The card id labeled as TS512MCF80

hdparm -i /dev/hdci reports:
...
DMA modes: mdma0 mdma1 *mdma2

IDE controller:
IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)


but if dma is turned on i get a lot of errors::

hdc: dma_timer_epiry: dma_status == 0x21
hdc: DMA timeout error
hdc: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
...


So blacklist this CF model.

Signed-off-by: Kirill Smelkov <kirr@xxxxxxxxxx>

Index: linux-2.6.17/drivers/ide/ide-dma.c
===================================================================
--- linux-2.6.17.orig/drivers/ide/ide-dma.c 2006-06-18 05:49:35.000000000 +0400
+++ linux-2.6.17/drivers/ide/ide-dma.c 2006-06-20 11:37:30.000000000 +0400
@@ -129,6 +129,7 @@
{ "SanDisk SDP3B-64" , "ALL" },
{ "ATAPI CD-ROM DRIVE 40X MAXIMUM", "ALL" },
{ "_NEC DV5800A", "ALL" },
+ { "TRANSCEND" , "20050811" },
{ NULL , NULL }

};



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