Recently, I've obtained a bug report concerning an MMC card. Two problems are described, both sporadic. Problem 1: illegal ocr value is returned. You may notice, in the non-working case, obviously incorrect ocr value (0xffffffff) is returned. The card won't work after this, unless reinserted. What, to your opinion, shall we do about it?
---- Normal case - everything works: ---------- Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1001, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 00ff8000 00000000 00000000 00000000 Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1001, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 00ff8000 00000000 00000000 00000000 Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 80ff8000 00000000 00000000 00000000 Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD2 arg 00000000 flags 00000067 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x2, arg: 0x0, mask: 0x1240 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD2): 0/0/0: 06000131 364d2020 20011d43 332479ad ------------------- ------- Error case: OCR value is bad, card is left in bad state and won't work: --------- Mar 14 09:15:24 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1001, flags 0 Mar 14 09:15:24 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 00ff8000 00000000 00000000 00000000 Mar 14 09:15:24 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1, flags 0 Mar 14 09:15:24 Tirion kernel: mmc0: req done (CMD1): 0/0/0: ffffffff 00000000 00000000 00000000 Mar 14 09:15:24 Tirion kernel: mmc0: starting CMD2 arg 00000000 flags 00000067 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x2, arg: 0x0, mask: 0x1240 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 80, flags 0 Mar 14 09:15:24 Tirion kernel: mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000 --------------------- ____________________________________________________________________________________ Don't get soaked. Take a quick peek at the forecast with the Yahoo! Search weather shortcut. http://tools.search.yahoo.com/shortcuts/#loc_weather - 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/
