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path: root/drivers/ata/sata_sis.c
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Diffstat (limited to 'drivers/ata/sata_sis.c')
-rw-r--r--drivers/ata/sata_sis.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index c90fb1319dfe..a915822ae63c 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -138,22 +138,25 @@ static struct ata_port_info sis_port_info = {
.port_ops = &sis_ops,
};
-
MODULE_AUTHOR("Uwe Koziolek");
MODULE_DESCRIPTION("low-level driver for Silicon Integratad Systems SATA controller");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
MODULE_VERSION(DRV_VERSION);
-static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg, struct pci_dev *pdev)
+static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);
+ u8 pmr;
- if (port_no) {
+ if (ap->port_no) {
switch (pdev->device) {
case 0x0180:
case 0x0181:
- addr += SIS180_SATA1_OFS;
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+ if ((pmr & SIS_PMR_COMBINED) == 0)
+ addr += SIS180_SATA1_OFS;
break;
case 0x0182:
@@ -170,7 +173,7 @@ static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg,
static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg, pdev);
+ unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
u32 val, val2 = 0;
u8 pmr;
@@ -188,13 +191,13 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
return (val|val2) & 0xfffffffb; /* avoid problems with powerdowned ports */
}
-static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
+static void sis_scr_cfg_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr, pdev);
+ unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
u8 pmr;
- if (scr == SCR_ERROR) /* doesn't exist in PCI cfg space */
+ if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */
return;
pci_read_config_byte(pdev, SIS_PMR, &pmr);
@@ -251,6 +254,9 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ /* Provided by the PATA driver */
+ extern struct ata_port_info sis_info133;
+
static int printed_version;
struct ata_probe_ent *probe_ent = NULL;
int rc;
@@ -300,6 +306,17 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
switch (ent->device) {
case 0x0180:
case 0x0181:
+
+ /* The PATA-handling is provided by pata_sis */
+ switch (pmr & 0x30) {
+ case 0x10:
+ ppi[1] = &sis_info133;
+ break;
+
+ case 0x30:
+ ppi[0] = &sis_info133;
+ break;
+ }
if ((pmr & SIS_PMR_COMBINED) == 0) {
dev_printk(KERN_INFO, &pdev->dev,
"Detected SiS 180/181/964 chipset in SATA mode\n");
@@ -379,4 +396,3 @@ static void __exit sis_exit(void)
module_init(sis_init);
module_exit(sis_exit);
-