diff options
Diffstat (limited to 'drivers/edac/i5100_edac.c')
| -rw-r--r-- | drivers/edac/i5100_edac.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/edac/i5100_edac.c b/drivers/edac/i5100_edac.c index a8767a6c148..509eec860c3 100644 --- a/drivers/edac/i5100_edac.c +++ b/drivers/edac/i5100_edac.c @@ -24,6 +24,8 @@ /* register addresses and bit field accessors... */ /* device 16, func 1 */ +#define I5100_MC 0x40 /* Memory Control Register */ +#define I5100_MC_ERRDETEN(a) ((a) >> 5 & 1) #define I5100_MS 0x44 /* Memory Status Register */ #define I5100_SPDDATA 0x48 /* Serial Presence Detect Status Reg */ #define I5100_SPDDATA_RDO(a) ((a) >> 15 & 1) @@ -688,6 +690,14 @@ static int __devinit i5100_init_one(struct pci_dev *pdev, goto bail; } + /* ECC enabled? */ + pci_read_config_dword(pdev, I5100_MC, &dw); + if (!I5100_MC_ERRDETEN(dw)) { + printk(KERN_INFO "i5100_edac: ECC not enabled.\n"); + ret = -ENODEV; + goto bail; + } + /* figure out how many ranks, from strapped state of 48GB_Mode input */ pci_read_config_dword(pdev, I5100_MS, &dw); ranksperch = !!(dw & (1 << 8)) * 2 + 4; |