Bug 50011

Summary:	sdhci-pci 0000:05:03.1: Will use DMA mode even though HW doesn't fully claim to support it.
Product:	Drivers	Reporter:	Cristian Aravena Romero (caravena)
Component:	MMC/SD	Assignee:	drivers_mmc-sd
Status:	NEW ---
Severity:	normal	CC:	chris, tv
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.5.7	Subsystem:
Regression:	No	Bisected commit-id:

Description Cristian Aravena Romero 2012-11-03 22:26:37 UTC

Open bug in LP:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1074762

I'm Inserting sdhc 16Gbyte speed 10, and message:

sdhci-pci 0000:05:03.1: Will use DMA mode even though HW doesn't fully claim to support it.

Comment 1 Chris Ball 2012-11-03 22:30:02 UTC

Does the card work okay?

Comment 2 Cristian Aravena Romero 2012-11-03 22:35:09 UTC

Chris:

* Card of 16Gbytes speed 10 not work
* Card of 4Gbytes speed ? work fine

Comment 3 Cristian Aravena Romero 2012-11-03 22:57:12 UTC

Chris, in Windows 7 idem:

* Card of 16Gbytes speed 10 not work
* Card of 4Gbytes speed ? work fine

Comment 4 Cristian Aravena Romero 2012-11-03 23:03:09 UTC

in lspci:


-> "SD/SDIO/MMC/MS/MSPro" No support for SDHC(?)



05:03.1 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 22)
	Subsystem: Sony Corporation Device [104d:9045]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at d4100900 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci
	Kernel modules: sdhci-pci