Re: 2.6.20 mmc: problem with highspeed SD card
On 2/15/07, Pierre Ossman <[EMAIL PROTECTED]> wrote: Pierre Ossman wrote: > Eugene Ilkov wrote: >> PXAMCI: irq 0004 stat 2140 > > Hang on. PXAMCI is a MMC controller, right? yes, pxa2xx-mci driver Hmm... depending on where you look, you get different timing schematics. The MMCA 4.2 specification (which should be authoritative) does indicate that things are incompatible though. I'll put together a patch that you can try out. ok - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.20 mmc: problem with highspeed SD card
Pierre Ossman wrote: > Eugene Ilkov wrote: >> PXAMCI: irq 0004 stat 2140 > > Hang on. PXAMCI is a MMC controller, right? Perhaps the MMC timings > aren't overlapping properly with the new stuff... I'm going to have to > recheck my diagrams. Hmm... depending on where you look, you get different timing schematics. The MMCA 4.2 specification (which should be authoritative) does indicate that things are incompatible though. I'll put together a patch that you can try out. Rgds -- -- Pierre Ossman Linux kernel, MMC maintainerhttp://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.20 mmc: problem with highspeed SD card
Eugene Ilkov wrote: > PXAMCI: irq 0004 stat 2140 Hang on. PXAMCI is a MMC controller, right? Perhaps the MMC timings aren't overlapping properly with the new stuff... I'm going to have to recheck my diagrams. Rgds -- -- Pierre Ossman Linux kernel, MMC maintainerhttp://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.20 mmc: problem with highspeed SD card
Eugene Ilkov wrote: > > I found another related patch > http://mailman.laptop.org/pipermail/commits-kernel/2007-January/000554.html > > so i guess i'm not alone > You'd better pray that's not the problem you have because that revert was because the hardware under development had problems. > > mmc debug output is too noisy > and i can give you only this: > That dump doesn't cover the problem, so I can't draw any conclusions from it. > i boot into root fs on SD, and it just hangs on remounting to rw, so > it's not easy to get full dmesg output with i/o error and mmc debug > info, but i'll try if it helps I'm afraid I can't help you without a dmesg dump. This problem is most likely crappy hardware at some point, and I need details to make any guess about what it doesn't like. Rgds -- -- Pierre Ossman Linux kernel, MMC maintainerhttp://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.20 mmc: problem with highspeed SD card
On 2/15/07, Pierre Ossman <[EMAIL PROTECTED]> wrote: Eugene Ilkov wrote: > I have I/O errors with Transcend SD highspeed card 2GB/150x when it's > mounted in r/w mode (cardreader on sharp sl-c1000) > It works well if I reverse mmcv4 patch commited to 2.6.19-git2 > (http://lkml.org/lkml/2006/10/4/27) That patch is not the same as you are referencing in the rest of your mail. I geuss changes was started from that patch, I mean changes that comes with that: http://www.linuxhq.com/kernel/v2.6/19-git2/drivers/mmc/mmc.c I found another related patch http://mailman.laptop.org/pipermail/commits-kernel/2007-January/000554.html so i guess i'm not alone > I'm not experienced in mmc, but I figured out that problem is > somewhere in mmc_read_switch_caps() and when i change cmd.arg value > from 0x80F1 to 0x00F1 it works fine too > What argument should have SD_SWITCH opcode? > The argument is correct, so I'm guessing that your controller might be a bit flaky and not handle the new timing. Can you enable MMC_DEBUG and send over the dmesg? mmc debug output is too noisy and i can give you only this: mmc0: starting CMD18 arg 30007e00 flags 0035 PXAMCI: irq 0004 stat 2140 PXAMCI: irq 0005 stat 2940 PXAMCI: irq 0007 stat 3940 mmc0: req done (CMD18): 0/0/0: 0900 5f5a83d5 2db7ffbf 96800012 mmc0: starting CMD18 arg ae00 flags 0035 PXAMCI: irq 0004 stat 2140 PXAMCI: irq 0005 stat 2940 PXAMCI: irq 0007 stat 3940 mmc0: req done (CMD18): 0/0/0: 0900 5f5a83d5 2db7ffbf 96800012 mmc0: starting CMD18 arg 0ab49e00 flags 0035 PXAMCI: irq 0004 stat 2140 PXAMCI: irq 0005 stat 2940 PXAMCI: irq 0007 stat 3940 mmc0: req done (CMD18): 0/0/0: 0900 5f5a83d5 2db7ffbf 96800012 mmc0: starting CMD18 arg 0ab4ae00 flags 0035 PXAMCI: irq 0004 stat 2140 PXAMCI: irq 0005 stat 2940 PXAMCI: irq 0007 stat 3940 mmc0: req done (CMD18): 0/0/0: 0900 5f5a83d5 2db7ffbf 96800012 with desabled mmc debug : Linux version 2.6.20-rc1-mm1-z2 ([EMAIL PROTECTED]) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #58 PREEMPT Thu Feb 15 13:49:39 MSK 2007 CPU: XScale-PXA270 [69054117] revision 7 (ARMv5TE), cr=397f Machine: SHARP Akita [..skipped..] mmcblk0: mmc0:b368 SDC 2009600KiB mmcblk0: p1 mmcblk0: error 2 transferring data mmcblk0: error 2 transferring data kjournald starting. Commit interval 5 seconds mmcblk0: error 2 transferring data EXT3 FS on mmcblk0p1, internal journal EXT3-fs: recovery complete. mmcblk0: error 2 transferring data EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem). Freeing init memory: 72K mmcblk0: error 2 transferring data mmcblk0: error 2 transferring data mmcblk0: error 2 transferring data mmcblk0: error 2 transferring data mmcblk0: error 2 transferring data mmcblk0: error 2 transferring data mmcblk0: error 2 transferring data i boot into root fs on SD, and it just hangs on remounting to rw, so it's not easy to get full dmesg output with i/o error and mmc debug info, but i'll try if it helps - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: 2.6.20 mmc: problem with highspeed SD card
Eugene Ilkov wrote: > I have I/O errors with Transcend SD highspeed card 2GB/150x when it's > mounted in r/w mode (cardreader on sharp sl-c1000) > It works well if I reverse mmcv4 patch commited to 2.6.19-git2 > (http://lkml.org/lkml/2006/10/4/27) That patch is not the same as you are referencing in the rest of your mail. > I'm not experienced in mmc, but I figured out that problem is > somewhere in mmc_read_switch_caps() and when i change cmd.arg value > from 0x80F1 to 0x00F1 it works fine too > What argument should have SD_SWITCH opcode? > The argument is correct, so I'm guessing that your controller might be a bit flaky and not handle the new timing. Can you enable MMC_DEBUG and send over the dmesg? Rgds -- -- Pierre Ossman Linux kernel, MMC maintainerhttp://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
