From: Tejun Heo <tj@kernel.org>
To: Jeff Garzik <jeff@garzik.org>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
piterpunk@slackware.com
Subject: [PATCH #upstream-fixes] ahci: sis can't do PMP
Date: Mon, 16 Jun 2008 11:38:22 +0900 [thread overview]
Message-ID: <4855D21E.5020706@kernel.org> (raw)
From: Piter PUNK <piterpunk@slackware.com>
SiS AHCIs say they can do PMP but can't and fail detection if SRST w/
pmp==15 is used. Turn off PMP support.
tj: added patch description, adapted patch to #upstream-fixes and
renamed board_ahci_sis to board_ahci_nopmp.
Signed-off-by: Tejun Heo <tj@kernel.org>
---
drivers/ata/ahci.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 544b7d6..c81f09c 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -89,6 +89,7 @@ enum {
board_ahci_sb600 = 3,
board_ahci_mv = 4,
board_ahci_sb700 = 5,
+ board_ahci_nopmp = 6,
/* global controller registers */
HOST_CAP = 0x00, /* host capabilities */
@@ -384,6 +385,14 @@ static const struct ata_port_info ahci_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
+ /* board_ahci_nopmp */
+ {
+ AHCI_HFLAGS (AHCI_HFLAG_NO_PMP),
+ .flags = AHCI_FLAG_COMMON,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &ahci_ops,
+ },
};
static const struct pci_device_id ahci_pci_tbl[] = {
@@ -508,9 +517,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci }, /* MCP7B */
/* SiS */
- { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
- { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 966 */
- { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
+ { PCI_VDEVICE(SI, 0x1184), board_ahci_nopmp }, /* SiS 966 */
+ { PCI_VDEVICE(SI, 0x1185), board_ahci_nopmp }, /* SiS 968 */
+ { PCI_VDEVICE(SI, 0x0186), board_ahci_nopmp }, /* SiS 968 */
/* Marvell */
{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
reply other threads:[~2008-06-16 2:38 UTC|newest]
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