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i7300_edac: Detect if the device is on single mode 

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Mauro Carvalho Chehab 2010-08-27 09:04:11 -03:00
parent d7de2bdb0e
commit bb81a21637
1 changed files with 17 additions and 8 deletions
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25
drivers/edac/i7300_edac.c
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@ -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",