| 1 |
>From ChangeLog-2.6.20.7------------------------- |
| 2 |
|
| 3 |
commit c23bbe5978f98e7ae3a41f13dbf48d70c6651573 |
| 4 |
Author: Conke Hu <conke.hu@×××××.com> |
| 5 |
Date: Tue Apr 10 13:06:56 2007 -0400 |
| 6 |
|
| 7 |
ahci.c: walkaround for SB600 SATA internal error issue |
| 8 |
|
| 9 |
ahci.c: walkaround for SB600 SATA internal error issue |
| 10 |
|
| 11 |
There is a HW issue in ATI SB600 SATA that PxSERR.E should not be |
| 12 |
set on some conditions, for example, when there is no media in SATA |
| 13 |
CD/DVD drive or media is not ready, AHCI controller fails to execute |
| 14 |
ATAPI commands and reports PORT_IRQ_TF_ERR, but ATI SB600 SATA |
| 15 |
controller sets PxSERR.E at the |
| 16 |
same time, which is not necessary. |
| 17 |
This patch is just to ignore the INTERNAL ERROR in such case. |
| 18 |
Without this patch, ahci error handler will report many errors as |
| 19 |
below: |
| 20 |
----------- cut from dmesg ----------- |
| 21 |
ata9: soft resetting port |
| 22 |
ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300) |
| 23 |
ata9.00: configured for UDMA/33 |
| 24 |
ata9: EH complete |
| 25 |
ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2 |
| 26 |
ata9.00: (irq_stat 0x40000001) |
| 27 |
ata9.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0 |
| 28 |
res 51/24:03:00:00:20/00:00:00:00:00/a0 Emask 0x40 (internal |
| 29 |
error) |
| 30 |
ata9: soft resetting port |
| 31 |
ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300) |
| 32 |
ata9.00: configured for UDMA/33 |
| 33 |
ata9: EH complete |
| 34 |
ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2 |
| 35 |
ata9.00: (irq_stat 0x40000001) |
| 36 |
ata9.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x43 data 12 |
| 37 |
in |
| 38 |
res 51/24:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal |
| 39 |
error) |
| 40 |
-------- end cut --------- |
Archives