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-rw-r--r--drivers/scsi/ata_piix.c10
-rw-r--r--drivers/scsi/sata_sis.c82
2 files changed, 77 insertions, 15 deletions
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index deec0cef88d..5f868852904 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -68,8 +68,8 @@ enum {
PIIX_COMB_PATA_P0 = (1 << 1),
PIIX_COMB = (1 << 2), /* combined mode enabled? */
- PIIX_PORT_PRESENT = (1 << 0),
- PIIX_PORT_ENABLED = (1 << 4),
+ PIIX_PORT_ENABLED = (1 << 0),
+ PIIX_PORT_PRESENT = (1 << 4),
PIIX_80C_PRI = (1 << 5) | (1 << 4),
PIIX_80C_SEC = (1 << 7) | (1 << 6),
@@ -377,7 +377,9 @@ static void piix_pata_phy_reset(struct ata_port *ap)
* None (inherited from caller).
*
* RETURNS:
- * Non-zero if device detected, zero otherwise.
+ * Non-zero if port is enabled, it may or may not have a device
+ * attached in that case (PRESENT bit would only be set if BIOS probe
+ * was done). Zero is returned if port is disabled.
*/
static int piix_sata_probe (struct ata_port *ap)
{
@@ -401,7 +403,7 @@ static int piix_sata_probe (struct ata_port *ap)
*/
for (i = 0; i < 4; i++) {
- mask = (PIIX_PORT_PRESENT << i) | (PIIX_PORT_ENABLED << i);
+ mask = (PIIX_PORT_ENABLED << i);
if ((orig_mask & mask) == mask)
if (combined || (i == ap->hard_port_no))
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c
index 43af445b3ad..7d1aaa99aaa 100644
--- a/drivers/scsi/sata_sis.c
+++ b/drivers/scsi/sata_sis.c
@@ -52,7 +52,10 @@ enum {
/* PCI configuration registers */
SIS_GENCTL = 0x54, /* IDE General Control register */
SIS_SCR_BASE = 0xc0, /* sata0 phy SCR registers */
- SIS_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */
+ SIS180_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */
+ SIS182_SATA1_OFS = 0x20, /* offset from sata0->sata1 phy regs */
+ SIS_PMR = 0x90, /* port mapping register */
+ SIS_PMR_COMBINED = 0x30,
/* random bits */
SIS_FLAG_CFGSCR = (1 << 30), /* host flag: SCRs via PCI cfg */
@@ -67,6 +70,7 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static struct pci_device_id sis_pci_tbl[] = {
{ PCI_VENDOR_ID_SI, 0x180, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 },
{ PCI_VENDOR_ID_SI, 0x181, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 },
+ { PCI_VENDOR_ID_SI, 0x182, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 },
{ } /* terminate list */
};
@@ -139,56 +143,94 @@ 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)
+static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg, int device)
{
unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);
- if (port_no)
- addr += SIS_SATA1_OFS;
+ if (port_no)
+ if (device == 0x182)
+ addr += SIS182_SATA1_OFS;
+ else
+ addr += SIS180_SATA1_OFS;
return addr;
}
static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
{
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
- unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg);
- u32 val;
+ unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg, pdev->device);
+ u32 val, val2;
+ u8 pmr;
if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */
return 0xffffffff;
+
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
pci_read_config_dword(pdev, cfg_addr, &val);
- return val;
+
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ pci_read_config_dword(pdev, cfg_addr+0x10, &val2);
+
+ return val|val2;
}
static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
{
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
- unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr);
+ unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr, pdev->device);
+ u8 pmr;
if (scr == SCR_ERROR) /* doesn't exist in PCI cfg space */
return;
+
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
pci_write_config_dword(pdev, cfg_addr, val);
+
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ pci_write_config_dword(pdev, cfg_addr+0x10, val);
}
static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
+ struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
+ u32 val,val2;
+ u8 pmr;
+
if (sc_reg > SCR_CONTROL)
return 0xffffffffU;
if (ap->flags & SIS_FLAG_CFGSCR)
return sis_scr_cfg_read(ap, sc_reg);
- return inl(ap->ioaddr.scr_addr + (sc_reg * 4));
+
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
+ val = inl(ap->ioaddr.scr_addr + (sc_reg * 4));
+
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4)+0x10);
+
+ return val|val2;
}
static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
{
+ struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
+ u8 pmr;
+
if (sc_reg > SCR_CONTROL)
return;
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+
if (ap->flags & SIS_FLAG_CFGSCR)
sis_scr_cfg_write(ap, sc_reg, val);
- else
+ else {
outl(val, ap->ioaddr.scr_addr + (sc_reg * 4));
+ if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+ outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)+0x10);
+ }
}
/* move to PCI layer, integrate w/ MSI stuff */
@@ -210,6 +252,8 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
u32 genctl;
struct ata_port_info *ppi;
int pci_dev_busy = 0;
+ u8 pmr;
+ u8 port2_start;
rc = pci_enable_device(pdev);
if (rc)
@@ -251,11 +295,27 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->host_flags |= SIS_FLAG_CFGSCR;
}
+ pci_read_config_byte(pdev, SIS_PMR, &pmr);
+ if (ent->device != 0x182) {
+ if ((pmr & SIS_PMR_COMBINED) == 0) {
+ printk(KERN_INFO "sata_sis: Detected SiS 180/181 chipset in SATA mode\n");
+ port2_start=0x64;
+ }
+ else {
+ printk(KERN_INFO "sata_sis: Detected SiS 180/181 chipset in combined mode\n");
+ port2_start=0;
+ }
+ }
+ else {
+ printk(KERN_INFO "sata_sis: Detected SiS 182 chipset\n");
+ port2_start = 0x20;
+ }
+
if (!(probe_ent->host_flags & SIS_FLAG_CFGSCR)) {
probe_ent->port[0].scr_addr =
pci_resource_start(pdev, SIS_SCR_PCI_BAR);
probe_ent->port[1].scr_addr =
- pci_resource_start(pdev, SIS_SCR_PCI_BAR) + 64;
+ pci_resource_start(pdev, SIS_SCR_PCI_BAR) + port2_start;
}
pci_set_master(pdev);
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 07:12:25 +0000