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authorTejun Heo <htejun@gmail.com>2007-02-02 14:51:09 +0900
committerJeff Garzik <jeff@garzik.org>2007-02-02 11:52:05 -0500
commit77280989673ee1ef736a92617f52e2be45651833 (patch)
tree58d3792bd06a7583c91564737599b0392c16d798 /drivers/pci/quirks.c
parente34efe3b100d0fbdf053128956c3dd0bc68754d6 (diff)
downloadop-kernel-dev-77280989673ee1ef736a92617f52e2be45651833.zip
op-kernel-dev-77280989673ee1ef736a92617f52e2be45651833.tar.gz
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 <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r--drivers/pci/quirks.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index dcc0c1a..c913ea4e 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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