[libata] pata_via: support VX855, future chips whose IDE controller use 0x0571

It supports VX855 and future chips whose IDE controller uses PCI ID 0x0571.

Signed-off-by: Joseph Chan <josephchan@via.com.tw>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 681169c..79a6c9a 100644 (file)
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -86,6 +86,10 @@ enum {
        VIA_SATA_PATA   = 0x800, /* SATA/PATA combined configuration */
 };
 
+enum {
+       VIA_IDFLAG_SINGLE = (1 << 0), /* single channel controller) */
+};
+
 /*
  * VIA SouthBridge chips.
  */
@@ -97,8 +101,12 @@ static const struct via_isa_bridge {
        u8 rev_max;
        u16 flags;
 } via_isa_bridges[] = {
+       { "vx855",      PCI_DEVICE_ID_VIA_VX855,    0x00, 0x2f,
+         VIA_UDMA_133 | VIA_BAD_AST | VIA_SATA_PATA },
        { "vx800",      PCI_DEVICE_ID_VIA_VX800,    0x00, 0x2f, VIA_UDMA_133 |
        VIA_BAD_AST | VIA_SATA_PATA },
+       { "vt8261",     PCI_DEVICE_ID_VIA_8261,     0x00, 0x2f,
+         VIA_UDMA_133 | VIA_BAD_AST },
        { "vt8237s",    PCI_DEVICE_ID_VIA_8237S,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
        { "vt8251",     PCI_DEVICE_ID_VIA_8251,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
        { "cx700",      PCI_DEVICE_ID_VIA_CX700,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_SATA_PATA },
@@ -122,6 +130,8 @@ static const struct via_isa_bridge {
        { "vt82c586",   PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, VIA_UDMA_NONE | VIA_SET_FIFO },
        { "vt82c576",   PCI_DEVICE_ID_VIA_82C576,   0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK },
        { "vt82c576",   PCI_DEVICE_ID_VIA_82C576,   0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
+       { "vtxxxx",     PCI_DEVICE_ID_VIA_ANON,    0x00, 0x2f,
+         VIA_UDMA_133 | VIA_BAD_AST },
        { NULL }
 };
 
@@ -460,6 +470,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
        static int printed_version;
        u8 enable;
        u32 timing;
+       unsigned long flags = id->driver_data;
        int rc;
 
        if (!printed_version++)
@@ -469,9 +480,13 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
        if (rc)
                return rc;
 
+       if (flags & VIA_IDFLAG_SINGLE)
+               ppi[1] = &ata_dummy_port_info;
+
        /* To find out how the IDE will behave and what features we
           actually have to look at the bridge not the IDE controller */
-       for (config = via_isa_bridges; config->id; config++)
+       for (config = via_isa_bridges; config->id != PCI_DEVICE_ID_VIA_ANON;
+            config++)
                if ((isa = pci_get_device(PCI_VENDOR_ID_VIA +
                        !!(config->flags & VIA_BAD_ID),
                        config->id, NULL))) {
@@ -482,10 +497,6 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                        pci_dev_put(isa);
                }
 
-       if (!config->id) {
-               printk(KERN_WARNING "via: Unknown VIA SouthBridge, disabling.\n");
-               return -ENODEV;
-       }
        pci_dev_put(isa);
 
        if (!(config->flags & VIA_NO_ENABLES)) {
@@ -587,6 +598,7 @@ static const struct pci_device_id via[] = {
        { PCI_VDEVICE(VIA, 0x1571), },
        { PCI_VDEVICE(VIA, 0x3164), },
        { PCI_VDEVICE(VIA, 0x5324), },
+       { PCI_VDEVICE(VIA, 0xC409), VIA_IDFLAG_SINGLE },
 
        { },
 };

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index d56ad9c..febc10e 100644 (file)
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1357,6 +1357,7 @@
 #define PCI_DEVICE_ID_VIA_8783_0       0x3208
 #define PCI_DEVICE_ID_VIA_8237         0x3227
 #define PCI_DEVICE_ID_VIA_8251         0x3287
+#define PCI_DEVICE_ID_VIA_8261         0x3402
 #define PCI_DEVICE_ID_VIA_8237A                0x3337
 #define PCI_DEVICE_ID_VIA_8237S                0x3372
 #define PCI_DEVICE_ID_VIA_SATA_EIDE    0x5324
@@ -1366,10 +1367,13 @@
 #define PCI_DEVICE_ID_VIA_CX700                0x8324
 #define PCI_DEVICE_ID_VIA_CX700_IDE    0x0581
 #define PCI_DEVICE_ID_VIA_VX800                0x8353
+#define PCI_DEVICE_ID_VIA_VX855                0x8409
 #define PCI_DEVICE_ID_VIA_8371_1       0x8391
 #define PCI_DEVICE_ID_VIA_82C598_1     0x8598
 #define PCI_DEVICE_ID_VIA_838X_1       0xB188
 #define PCI_DEVICE_ID_VIA_83_87XX_1    0xB198
+#define PCI_DEVICE_ID_VIA_C409_IDE     0XC409
+#define PCI_DEVICE_ID_VIA_ANON         0xFFFF
 
 #define PCI_VENDOR_ID_SIEMENS           0x110A
 #define PCI_DEVICE_ID_SIEMENS_DSCC4     0x2102