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i5k_amb: support Intel 5400 chipset 

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>
hifive-unleashed-5.1
Darrick J. Wong 2008-05-23 13:04:25 -07:00 committed by Linus Torvalds
parent ca68d0ac16
commit b8fdaf5a05
2 changed files with 37 additions and 5 deletions
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39
drivers/hwmon/i5k_amb.c
View 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);

3
include/linux/pci_ids.h
View File

@ -2383,6 +2383,9 @@
#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