Hi Andy, On Mon, Jun 20 2011, Chris Ball wrote: > On Mon, Jun 20 2011, Andrew Lutomirski wrote: >> I have an SDHC card that works fine in a camera and in several >> different USB-based readers. On my sdhci reader (the integrated one >> on a Lenovo X220), though, it spews stuff like: >> >> [ 306.103556] mmcblk0: error -110 sending read/write command, >> response 0x0, card status 0x400b00 >> [ 306.103559] end_request: I/O error, dev mmcblk0, sector 410272 >> [ 306.103595] mmc0: Got data interrupt 0x00600000 even though no data >> operation was in progress. >> [ 306.103597] sdhci: =========== REGISTER DUMP (mmc0)=========== >> [ 306.103602] sdhci: Sys addr: 0xf9253200 | Version: 0x00000502 >> [ 306.103607] sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000001 >> [ 306.103613] sdhci: Argument: 0x000642a1 | Trn mode: 0x00000013 >> [ 306.103618] sdhci: Present: 0x01cf0000 | Host ctl: 0x00000003 >> [ 306.103623] sdhci: Power: 0x0000000f | Blk gap: 0x00000000 >> [ 306.103628] sdhci: Wake-up: 0x00000000 | Clock: 0x00000107 >> [ 306.103634] sdhci: Timeout: 0x00000009 | Int stat: 0x00000000 >> [ 306.103639] sdhci: Int enab: 0x02ff00cb | Sig enab: 0x02ff00cb >> [ 306.103644] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 >> [ 306.103649] sdhci: Caps: 0x21e8c8b2 | Caps_1: 0x00008073 >> [ 306.103654] sdhci: Cmd: 0x0000113a | Max curr: 0x00000040 >> [ 306.103655] sdhci: =========================================== >> >> all over the logs and fails some (but not all) attempts to read it. >> The startup messages are: >> >> [ 830.308403] sdhci-pci 0000:0d:00.0: SDHCI controller found >> [1180:e823] (rev 4) >> [ 830.308632] sdhci-pci 0000:0d:00.0: PCI INT A -> GSI 16 (level, >> low) -> IRQ 16 >> [ 830.308720] sdhci-pci 0000:0d:00.0: setting latency timer to 64 >> [ 830.308730] mmc0: no vmmc regulator found >> [ 830.308802] Registered led device: mmc0:: >> [ 830.309059] mmc0: SDHCI controller on PCI [0000:0d:00.0] using DMA >> >> and lspci says: >> >> 0d:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 04) >> >> I see this on 2.6.39.1 and 3.0 git from today. > > Any idea whether this is present in previous kernels too? It'd be > great if you can test a few earlier ones and find out whether we're > looking at a regression or just new hardware to add quirks for. Ah, could you try this patch, please? http://thread.gmane.org/gmane.linux.kernel.mmc/8254 ("mmc: Enable MMC card reader for RICOH [1180:e823]") It's already present in mmc-next and queued for 3.0. - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
