The IDE driver complains about an 80-wire cable detection failure and falls back to UDMA/33 for the old IBM-DJNA-371350 Rev. J7NOA30K HD even though it is an UDMA/66 HD.
Kernel Message:
"hdb: host max PIO5 wanted PIO255(auto-tune) selected PIO4
hdb: drive side 80-wire cable detection failed, limiting max speed to UDMA33
hdb: UDMA/33 mode selected"
This patch disables the word 93 validity check in /drivers/ide/ide-iops.c for this particular hardware by adding it to the buggy firmware ivb_list.
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 6cc6c83..6d6f78f 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -218,6 +218,7 @@ static const struct drive_list_entry ivb_list[] = {
{ "TSSTcorp CDDVDW SH-S202H" , "SB00" },
{ "TSSTcorp CDDVDW SH-S202H" , "SB01" },
{ "SAMSUNG SP0822N" , "WA100-10" },
+ { "IBM-DJNA-371350" , "J7NOA30K" },
{ NULL , NULL }
};
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