Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=77280989673ee1ef736a92617f52e2be45651833
Commit: 77280989673ee1ef736a92617f52e2be45651833
Parent: e34efe3b100d0fbdf053128956c3dd0bc68754d6
Author: Tejun Heo <[EMAIL PROTECTED]>
AuthorDate: Fri Feb 2 14:51:09 2007 +0900
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Fri Feb 2 11:52:05 2007 -0500
ahci/pata_jmicron: fix JMicron quirk
For all JMicrons except for 361 and 368, AHCI mode enable bits in the
Control(1) should be set. This used to be done in both ahci and
pata_jmicron but while moving programming to PCI quirk, it was removed
from ahci part while still left in pata_jmicron.
The implemented JMicron PCI quirk was incorrect in that it didn't
program AHCI mode enable bits. If pata_jmicron is loaded first and
programs those bits, the ahci ports work; otherwise, ahci device
detection fails miserably.
This patch makes JMicron PCI quirk clear SATA IDE mode bits and set
AHCI mode bits and remove the respective part from pata_jmicron.
Tested on JMB361, 363 and 368.
Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/ata/pata_jmicron.c | 18 +++++-------------
drivers/pci/quirks.c | 4 ++--
2 files changed, 7 insertions(+), 15 deletions(-)
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 2d661cb..d50264a 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -204,20 +204,12 @@ static int jmicron_init_one (struct pci_dev *pdev, const
struct pci_device_id *i
u32 reg;
- if (id->driver_data != 368) {
- /* Put the controller into AHCI mode in case the AHCI driver
- has not yet been loaded. This can be done with either
- function present */
+ /* PATA controller is fn 1, AHCI is fn 0 */
+ if (id->driver_data != 368 && PCI_FUNC(pdev->devfn) != 1)
+ return -ENODEV;
- /* FIXME: We may want a way to override this in future */
- pci_write_config_byte(pdev, 0x41, 0xa1);
-
- /* PATA controller is fn 1, AHCI is fn 0 */
- if (PCI_FUNC(pdev->devfn) != 1)
- return -ENODEV;
- }
- if ( id->driver_data == 365 || id->driver_data == 366) {
- /* The 365/66 have two PATA channels, redirect the second */
+ /* The 365/66 have two PATA channels, redirect the second */
+ if (id->driver_data == 365 || id->driver_data == 366) {
pci_read_config_dword(pdev, 0x80, ®);
reg |= (1 << 24); /* IDE1 to PATA IDE secondary */
pci_write_config_dword(pdev, 0x80, reg);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index dcc0c1a..c913ea4 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1262,8 +1262,8 @@ static void quirk_jmicron_dualfn(struct pci_dev *pdev)
pci_read_config_dword(pdev, 0x40, &conf);
/* Enable dual function mode, AHCI on fn 0, IDE fn1 */
/* Set the class codes correctly and then direct IDE 0
*/
- conf &= ~0x000F0200; /* Clear bit 9 and 16-19 */
- conf |= 0x00C20002; /* Set bit 1, 17, 22, 23 */
+ conf &= ~0x000FF200; /* Clear bit 9 and 12-19 */
+ conf |= 0x00C2A102; /* Set 1, 8, 13, 15, 17, 22, 23 */
pci_write_config_dword(pdev, 0x40, conf);
/* Reconfigure so that the PCI scanner discovers the
-
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