[PATCH] sata_sis: support SiS966/966L

The SiS966/966L has different PCI-IDs for native mode and AHCI mode.
The SiS966 supports four SATA ports only in native mode.

Added additional PCI-ID 0x0183 for SiS965/965L.

this patch is based on the code from David Wang from SiS Corporation published on SiS Website.

Signed-off-by: Uwe Koziolek <uwe.koziolek@gmx.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 54 insertions, 25 deletions

diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index 9c25a1e91730..c1e32194b09f 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -42,7 +42,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME        "sata_sis"
-#define DRV_VERSION     "0.6"
+#define DRV_VERSION     "0.7"
 
 enum {
         sis_180                 = 0,
@@ -67,9 +67,12 @@ static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg);
 static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
 
 static const struct pci_device_id sis_pci_tbl[] = {
-        { PCI_VDEVICE(SI, 0x180), sis_180 },
-        { PCI_VDEVICE(SI, 0x181), sis_180 },
-        { PCI_VDEVICE(SI, 0x182), sis_180 },
+        { PCI_VDEVICE(SI, 0x0180), sis_180 },           /* SiS 964/180 */
+        { PCI_VDEVICE(SI, 0x0181), sis_180 },           /* SiS 964/180 */
+        { PCI_VDEVICE(SI, 0x0182), sis_180 },           /* SiS 965/965L */
+        { PCI_VDEVICE(SI, 0x0183), sis_180 },           /* SiS 965/965L */
+        { PCI_VDEVICE(SI, 0x1182), sis_180 },           /* SiS 966/966L */
+        { PCI_VDEVICE(SI, 0x1183), sis_180 },           /* SiS 966/966L */
 
         { }     /* terminate list */
 };
@@ -142,24 +145,32 @@ 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, int device)
+static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg, struct pci_dev *pdev)
 {
         unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);
 
         if (port_no)  {
-                if (device == 0x182)
-                        addr += SIS182_SATA1_OFS;
-                else
-                        addr += SIS180_SATA1_OFS;
+                switch (pdev->device) {
+                        case 0x0180:
+                        case 0x0181:
+                                addr += SIS180_SATA1_OFS;
+                                break;
+
+                        case 0x0182:
+                        case 0x0183:
+                        case 0x1182:
+                        case 0x1183:
+                                addr += SIS182_SATA1_OFS;
+                                break;
+                }
         }
-
         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->dev);
-        unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg, pdev->device);
+        unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg, pdev);
         u32 val, val2 = 0;
         u8 pmr;
 
@@ -170,7 +181,8 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
 
         pci_read_config_dword(pdev, cfg_addr, &val);
 
-        if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+        if ((pdev->device == 0x0182) || (pdev->device == 0x0183) || (pdev->device == 0x1182) ||
+            (pdev->device == 0x1183) || (pmr & SIS_PMR_COMBINED))
                 pci_read_config_dword(pdev, cfg_addr+0x10, &val2);
 
         return (val|val2) &  0xfffffffb; /* avoid problems with powerdowned ports */
@@ -179,7 +191,7 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
 static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, 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->device);
+        unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr, pdev);
         u8 pmr;
 
         if (scr == SCR_ERROR) /* doesn't exist in PCI cfg space */
@@ -189,7 +201,8 @@ static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
 
         pci_write_config_dword(pdev, cfg_addr, val);
 
-        if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+        if ((pdev->device == 0x0182) || (pdev->device == 0x0183) || (pdev->device == 0x1182) ||
+            (pdev->device == 0x1183) || (pmr & SIS_PMR_COMBINED))
                 pci_write_config_dword(pdev, cfg_addr+0x10, val);
 }
 
@@ -209,7 +222,8 @@ static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg)
 
         val = inl(ap->ioaddr.scr_addr + (sc_reg * 4));
 
-        if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+        if ((pdev->device == 0x0182) || (pdev->device == 0x0183) || (pdev->device == 0x1182) ||
+            (pdev->device == 0x1183) || (pmr & SIS_PMR_COMBINED))
                 val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10);
 
         return (val | val2) &  0xfffffffb;
@@ -229,7 +243,8 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
                 sis_scr_cfg_write(ap, sc_reg, val);
         else {
                 outl(val, ap->ioaddr.scr_addr + (sc_reg * 4));
-                if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
+                if ((pdev->device == 0x0182) || (pdev->device == 0x0183) || (pdev->device == 0x1182) ||
+                    (pdev->device == 0x1183) || (pmr & SIS_PMR_COMBINED))
                         outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)+0x10);
         }
 }
@@ -243,7 +258,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         struct ata_port_info pi = sis_port_info, *ppi[2] = { &pi, &pi };
         int pci_dev_busy = 0;
         u8 pmr;
-        u8 port2_start;
+        u8 port2_start = 0x20;
 
         if (!printed_version++)
                 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
@@ -282,28 +297,42 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         }
 
         pci_read_config_byte(pdev, SIS_PMR, &pmr);
-        if (ent->device != 0x182) {
+        switch (ent->device) {
+        case 0x0180:
+        case 0x0181:
                 if ((pmr & SIS_PMR_COMBINED) == 0) {
                         dev_printk(KERN_INFO, &pdev->dev,
                                    "Detected SiS 180/181/964 chipset in SATA mode\n");
                         port2_start = 64;
-                }
-                else {
+                } else {
                         dev_printk(KERN_INFO, &pdev->dev,
                                    "Detected SiS 180/181 chipset in combined mode\n");
                         port2_start=0;
                         pi.flags |= ATA_FLAG_SLAVE_POSS;
                 }
-        }
-        else {
+                break;
+        
+        case 0x0182:
+        case 0x0183:
                 pci_read_config_dword ( pdev, 0x6C, &val);
                 if (val & (1L << 31)) {
                         dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965 chipset\n");
                         pi.flags |= ATA_FLAG_SLAVE_POSS;
-                }
-                else
+                } else {
                         dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965L chipset\n");
-                port2_start = 0x20;
+                }
+                break;
+
+        case 0x1182:
+        case 0x1183:
+                pci_read_config_dword(pdev, 0x64, &val);
+                if (val & 0x10000000) {
+                        dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 1182/1183/966L SATA controller\n");
+                } else {
+                        dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 1182/1183/966 SATA controller\n");
+                        pi.flags |= ATA_FLAG_SLAVE_POSS;
+                }
+                break;
         }
 
         probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);