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| author | Jakub W. Jozwicki J <jakub007@go2.pl> | 2007-01-09 09:01:19 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-02-09 17:39:29 -0500 |
| commit | 7dcbc1f2c89b14745ff13eae3e57b72f05161786 (patch) | |
| tree | 057d4105d7863f3ce5f65ef8600678be46c23aed /drivers/ata/pata_sis.c | |
| parent | babfb682c93ca78b74d7f3bb07ee0e13831c6f46 (diff) | |
| download | linux-7dcbc1f2c89b14745ff13eae3e57b72f05161786.tar.gz linux-7dcbc1f2c89b14745ff13eae3e57b72f05161786.tar.bz2 linux-7dcbc1f2c89b14745ff13eae3e57b72f05161786.zip | |
pata_sis: implement laptop list and add ASUS A6K/A6U
In ASUS A6K/A6U hdd is connected to SiS 96x via 40c cable, however it
is short cable and is UDMA66 capable.
tj: fixed if () conditionals
ah: fixed infinite loop
Signed-off-by: Jakub W. Jozwicki <jakub007@go2.pl>
Cc: Andreas Henriksson <andreas@fatal.se>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_sis.c')
| -rw-r--r-- | drivers/ata/pata_sis.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c index c434c4ef4e4b..d9486fcd59f2 100644 --- a/drivers/ata/pata_sis.c +++ b/drivers/ata/pata_sis.c @@ -43,6 +43,34 @@ struct sis_chipset { up code later */ }; +struct sis_laptop { + u16 device; + u16 subvendor; + u16 subdevice; +}; + +static const struct sis_laptop sis_laptop[] = { + /* devid, subvendor, subdev */ + { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */ + /* end marker */ + { 0, } +}; + +static int sis_short_ata40(struct pci_dev *dev) +{ + const struct sis_laptop *lap = &sis_laptop[0]; + + while (lap->device) { + if (lap->device == dev->device && + lap->subvendor == dev->subsystem_vendor && + lap->subdevice == dev->subsystem_device) + return 1; + lap++; + } + + return 0; +} + /** * sis_port_base - return PCI configuration base for dev * @adev: device @@ -79,7 +107,7 @@ static int sis_133_pre_reset(struct ata_port *ap) /* The top bit of this register is the cable detect bit */ pci_read_config_word(pdev, 0x50 + 2 * ap->port_no, &tmp); - if (tmp & 0x8000) + if ((tmp & 0x8000) && !sis_short_ata40(pdev)) ap->cbl = ATA_CBL_PATA40; else ap->cbl = ATA_CBL_PATA80; @@ -127,7 +155,7 @@ static int sis_66_pre_reset(struct ata_port *ap) /* Older chips keep cable detect in bits 4/5 of reg 0x48 */ pci_read_config_byte(pdev, 0x48, &tmp); tmp >>= ap->port_no; - if (tmp & 0x10) + if ((tmp & 0x10) && !sis_short_ata40(pdev)) ap->cbl = ATA_CBL_PATA40; else ap->cbl = ATA_CBL_PATA80; |