On Sat, Oct 30, 2010 at 05:53:46AM +0200, Maxim Levitsky wrote: > Hi, > > I just bisected and reverted this commit. Commit-ID would have been useful, too: b08caed8659ab27199db51c63a35c5ee067fc7ef Also, adding the author to cc, done now. > With it I am unable to read MMC cards via Ricoh MMC function, > support for which I added recently. > > 07:00.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev > 12) > > The logs show lot of errors like this: > > [ 219.590748] mmc1: new MMC card at address 0001 > [ 219.639449] mmcblk0: mmc1:0001 MMC 483 MiB > [ 219.647008] mmcblk0: retrying using single block read > [ 219.649262] mmcblk0: error -84 transferring data, sector 0, nr 8, card status 0x900 > [ 219.649271] end_request: I/O error, dev mmcblk0, sector 0 > [ 219.651964] mmcblk0: error -84 transferring data, sector 1, nr 7, card status 0x900 > [ 219.651969] end_request: I/O error, dev mmcblk0, sector 1 > [ 219.654202] mmcblk0: error -84 transferring data, sector 2, nr 6, card status 0x900 > [ 219.654206] end_request: I/O error, dev mmcblk0, sector 2 > [ 219.657049] mmcblk0: error -84 transferring data, sector 3, nr 5, card status 0x900 > [ 219.657054] end_request: I/O error, dev mmcblk0, sector 3 > [ 219.661094] mmcblk0: error -84 transferring data, sector 4, nr 4, card status 0x900 > [ 219.661100] end_request: I/O error, dev mmcblk0, sector 4 > [ 219.663347] mmcblk0: error -84 transferring data, sector 5, nr 3, card status 0x900 > [ 219.663352] end_request: I/O error, dev mmcblk0, sector 5 > [ 219.665593] mmcblk0: error -84 transferring data, sector 6, nr 2, card status 0x900 > [ 219.665598] end_request: I/O error, dev mmcblk0, sector 6 > [ 219.667905] mmcblk0: error -84 transferring data, sector 7, nr 1, card status 0x900 > [ 219.667910] end_request: I/O error, dev mmcblk0, sector 7 > [ 219.667915] Buffer I/O error on device mmcblk0, logical block 0 > [ 219.672258] mmcblk0: retrying using single block read > .... > > > Now that reader in not standard (it doesn't claim SDHCI, but work very similiar), > so it might be device specific bug or not. > > One thing for sure, it doesn't physicaly support 8-bit (although the MMC Plus card I tested > probably does via extra connectors). -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ |
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