linux-kernel - SDHCI: mmc0: Unexpected interrupt 0x00008000.

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Date:	Thu, 19 Jul 2007 12:15:34 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	drzeus-sdhci@...eus.cx
CC:	sdhci-devel@...t.drzeus.cx,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: SDHCI: mmc0: Unexpected interrupt 0x00008000.

I'm getting this with current GIT kernels when I plug an SD card into
the side of my machine.  It appears to see the filesystem OK anyway, but
for some reason all the hal/gnome desktop stuff isn't seeing it.  Was
working last week.

The message is:

mmc0: Unexpected interrupt 0x00008000.
sdhci: ============== REGISTER DUMP ==============
sdhci: Sys addr: 0x2d7d4600 | Version:  0x00000200
sdhci: Blk size: 0x00007200 | Blk cnt:  0x00000000
sdhci: Argument: 0x000001aa | Trn mode: 0x00000033
sdhci: Present:  0x01ff0001 | Host ctl: 0x00000001
sdhci: Power:    0x0000000f | Blk gap:  0x00000000
sdhci: Wake-up:  0x00000000 | Clock:    0x00008007
sdhci: Timeout:  0x00000009 | Int stat: 0x00000000
sdhci: Int enab: 0x00ff00fb | Sig enab: 0x00ff00fb
sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
sdhci: Caps:     0x018021a1 | Max curr: 0x00000040
sdhci: ===========================================
PM: Adding info for mmc:mmc0:b368
mmcblk0: mmc0:b368 LEXAR 999936KiB 
 mmcblk0: p1


The machine is a Thinkpad X60, and the SD device is:

15:00.2 Generic system peripheral [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 18)
        Subsystem: Lenovo Thinkpad X60s
        Flags: bus master, medium devsel, latency 64, IRQ 22
        Memory at e4301800 (32-bit, non-prefetchable) [size=256]
        Capabilities: [80] Power Management version 2


Seems to work OK if I manually mount it.  To be honest, I don't know if
this message was always appearing or not; I only checked because it
didn't seem to be working.

    J
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