diff options
| -rw-r--r-- | drivers/ide/ide-iops.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index c19a221b1e18..06fe002116ec 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -206,8 +206,6 @@ EXPORT_SYMBOL_GPL(ide_in_drive_list); /* * Early UDMA66 devices don't set bit14 to 1, only bit13 is valid. - * We list them here and depend on the device side cable detection for them. - * * Some optical devices with the buggy firmwares have the same problem. */ static const struct drive_list_entry ivb_list[] = { @@ -251,10 +249,25 @@ u8 eighty_ninty_three(ide_drive_t *drive) * - force bit13 (80c cable present) check also for !ivb devices * (unless the slave device is pre-ATA3) */ - if ((id[ATA_ID_HW_CONFIG] & 0x4000) || - (ivb && (id[ATA_ID_HW_CONFIG] & 0x2000))) + if (id[ATA_ID_HW_CONFIG] & 0x4000) return 1; + if (ivb) { + const char *model = (char *)&id[ATA_ID_PROD]; + + if (strstr(model, "TSSTcorp CDDVDW SH-S202")) { + /* + * These ATAPI devices always report 80c cable + * so we have to depend on the host in this case. + */ + if (hwif->cbl == ATA_CBL_PATA80) + return 1; + } else { + /* Depend on the device side cable detection. */ + if (id[ATA_ID_HW_CONFIG] & 0x2000) + return 1; + } + } no_80w: if (drive->dev_flags & IDE_DFLAG_UDMA33_WARNED) return 0; |