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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-27 09:04:11 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-30 14:56:51 -0300 |
| commit | bb81a21637f84e2192bf327575645a7843c70cdb (patch) | |
| tree | f1093fc9a806b6a5ab0c058fb64849f397697afd /drivers/edac/i7300_edac.c | |
| parent | d7de2bdb0e15c594aefbc71d899c4684a5ce6559 (diff) | |
| download | blackbird-op-linux-bb81a21637f84e2192bf327575645a7843c70cdb.tar.gz blackbird-op-linux-bb81a21637f84e2192bf327575645a7843c70cdb.zip | |
i7300_edac: Detect if the device is on single mode
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/edac/i7300_edac.c')
| -rw-r--r-- | drivers/edac/i7300_edac.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c index 27088af79672..a88742abf1f4 100644 --- a/drivers/edac/i7300_edac.c +++ b/drivers/edac/i7300_edac.c @@ -92,12 +92,13 @@ /* OFFSETS for Function 1 */ #define MC_SETTINGS 0x40 + #define IS_MIRRORED(mc) ((mc) & (1 << 16)) + #define IS_ECC_ENABLED(mc) ((mc) & (1 << 5)) + #define IS_RETRY_ENABLED(mc) ((mc) & (1 << 31)) + #define IS_SCRBALGO_ENHANCED(mc) ((mc) & (1 << 8)) -#define IS_MIRRORED(mc) ((mc) & (1 << 16)) -#define IS_ECC_ENABLED(mc) ((mc) & (1 << 5)) -#define IS_RETRY_ENABLED(mc) ((mc) & (1 << 31)) -#define IS_SCRBALGO_ENHANCED(mc) ((mc) & (1 << 8)) - +#define MC_SETTINGS_A 0x58 + #define IS_SINGLE_MODE(mca) ((mca) & (1 << 14)) #define TOLM 0x6C #define REDMEMB 0x7C @@ -237,9 +238,11 @@ struct i7300_pvt { u16 tolm; /* top of low memory */ u64 ambase; /* AMB BAR */ - u32 mc_settings; - u16 mir[MAX_MIR]; + u32 mc_settings; /* Report several settings */ + u32 mc_settings_a; + + u16 mir[MAX_MIR]; /* Memory Interleave Reg*/ u16 mtr[MAX_SLOTS][MAX_BRANCHES]; /* Memory Technlogy Reg */ u16 ambpresent[MAX_CHANNELS]; /* AMB present regs */ @@ -653,9 +656,15 @@ static int i7300_get_mc_regs(struct mem_ctl_info *mci) /* Get memory controller settings */ pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map, MC_SETTINGS, &pvt->mc_settings); + pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map, MC_SETTINGS_A, + &pvt->mc_settings_a); - debugf0("Memory controller operating on %s mode\n", + if (IS_SINGLE_MODE(pvt->mc_settings_a)) + debugf0("Memory controller operating on single mode\n"); + else + debugf0("Memory controller operating on %s mode\n", IS_MIRRORED(pvt->mc_settings) ? "mirrored" : "non-mirrored"); + debugf0("Error detection is %s\n", IS_ECC_ENABLED(pvt->mc_settings) ? "enabled" : "disabled"); debugf0("Retry is %s\n", |
