i5k_amb: support Intel 5400 chipset
Darrick J. Wong [Fri, 23 May 2008 20:04:25 +0000 (13:04 -0700)]
Minor rework to support the Intel 5400 chipset.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/hwmon/i5k_amb.c
include/linux/pci_ids.h

index 6ac5c6f..f9e2ed6 100644 (file)
@@ -111,6 +111,7 @@ struct i5k_amb_data {
        void __iomem *amb_mmio;
        struct i5k_device_attribute *attrs;
        unsigned int num_attrs;
+       unsigned long chipset_id;
 };
 
 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
@@ -382,7 +383,8 @@ err:
        return res;
 }
 
-static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data)
+static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data,
+                                           unsigned long devid)
 {
        struct pci_dev *pcidev;
        u32 val32;
@@ -390,7 +392,7 @@ static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data)
 
        /* Find AMB register memory space */
        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
-                               PCI_DEVICE_ID_INTEL_5000_ERR,
+                               devid,
                                NULL);
        if (!pcidev)
                return -ENODEV;
@@ -409,6 +411,8 @@ static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data)
                goto out;
        }
 
+       data->chipset_id = devid;
+
        res = 0;
 out:
        pci_dev_put(pcidev);
@@ -441,10 +445,30 @@ out:
        return res;
 }
 
+static unsigned long i5k_channel_pci_id(struct i5k_amb_data *data,
+                                       unsigned long channel)
+{
+       switch (data->chipset_id) {
+       case PCI_DEVICE_ID_INTEL_5000_ERR:
+               return PCI_DEVICE_ID_INTEL_5000_FBD0 + channel;
+       case PCI_DEVICE_ID_INTEL_5400_ERR:
+               return PCI_DEVICE_ID_INTEL_5400_FBD0 + channel;
+       default:
+               BUG();
+       }
+}
+
+static unsigned long chipset_ids[] = {
+       PCI_DEVICE_ID_INTEL_5000_ERR,
+       PCI_DEVICE_ID_INTEL_5400_ERR,
+       0
+};
+
 static int __devinit i5k_amb_probe(struct platform_device *pdev)
 {
        struct i5k_amb_data *data;
        struct resource *reso;
+       int i;
        int res = -ENODEV;
 
        data = kzalloc(sizeof(*data), GFP_KERNEL);
@@ -452,19 +476,24 @@ static int __devinit i5k_amb_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        /* Figure out where the AMB registers live */
-       res = i5k_find_amb_registers(data);
+       i = 0;
+       do {
+               res = i5k_find_amb_registers(data, chipset_ids[i]);
+               i++;
+       } while (res && chipset_ids[i]);
+
        if (res)
                goto err;
 
        /* Copy the DIMM presence map for the first two channels */
        res = i5k_channel_probe(&data->amb_present[0],
-                               PCI_DEVICE_ID_INTEL_5000_FBD0);
+                               i5k_channel_pci_id(data, 0));
        if (res)
                goto err;
 
        /* Copy the DIMM presence map for the optional second two channels */
        i5k_channel_probe(&data->amb_present[2],
-                         PCI_DEVICE_ID_INTEL_5000_FBD1);
+                         i5k_channel_pci_id(data, 1));
 
        /* Set up resource regions */
        reso = request_mem_region(data->amb_base, data->amb_len, DRVNAME);
index cf6dbd7..342b55a 100644 (file)
 #define PCI_DEVICE_ID_INTEL_ICH10_4    0x3a30
 #define PCI_DEVICE_ID_INTEL_ICH10_5    0x3a60
 #define PCI_DEVICE_ID_INTEL_IOAT_SNB   0x402f
+#define PCI_DEVICE_ID_INTEL_5400_ERR   0x4030
+#define PCI_DEVICE_ID_INTEL_5400_FBD0  0x4035
+#define PCI_DEVICE_ID_INTEL_5400_FBD1  0x4036
 #define PCI_DEVICE_ID_INTEL_IOAT_SCNB  0x65ff
 #define PCI_DEVICE_ID_INTEL_TOLAPAI_0  0x5031
 #define PCI_DEVICE_ID_INTEL_TOLAPAI_1  0x5032