diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge/raminit_native.c')
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_native.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_native.c b/src/northbridge/intel/sandybridge/raminit_native.c index aec6a857cf..e7a3352b28 100644 --- a/src/northbridge/intel/sandybridge/raminit_native.c +++ b/src/northbridge/intel/sandybridge/raminit_native.c @@ -157,14 +157,23 @@ static u8 get_AONPD(u32 FRQ, u8 base_freq) return frq_aonpd_map[0][FRQ - 3]; } -/* Get COMP2 based on frequency index */ -static u32 get_COMP2(u32 FRQ, u8 base_freq) +/* Get COMP2 based on CPU generation and clock speed */ +static u32 get_COMP2(const ramctr_timing *ctrl) { - if (base_freq == 100) - return frq_comp2_map[1][FRQ - 7]; - + const bool is_ivybridge = IS_IVY_CPU(ctrl->cpu); + + if (ctrl->tCK <= TCK_1066MHZ) + return is_ivybridge ? 0x0C235924 : 0x0C21410C; + else if (ctrl->tCK <= TCK_933MHZ) + return is_ivybridge ? 0x0C446964 : 0x0C42514C; + else if (ctrl->tCK <= TCK_800MHZ) + return is_ivybridge ? 0x0C6671E4 : 0x0C6369CC; + else if (ctrl->tCK <= TCK_666MHZ) + return is_ivybridge ? 0x0CA8C264 : 0x0CA57A4C; + else if (ctrl->tCK <= TCK_533MHZ) + return is_ivybridge ? 0x0CEBDB64 : 0x0CE7C34C; else - return frq_comp2_map[0][FRQ - 3]; + return is_ivybridge ? 0x0D6FF5E4 : 0x0D6BEDCC; } static void normalize_tclk(ramctr_timing *ctrl, bool ref_100mhz_support) @@ -586,7 +595,7 @@ static void dram_ioregs(ramctr_timing *ctrl) printram("done\n"); /* Set COMP2 */ - MCHBAR32(CRCOMPOFST2) = get_COMP2(ctrl->FRQ, ctrl->base_freq); + MCHBAR32(CRCOMPOFST2) = get_COMP2(ctrl); printram("COMP2 done\n"); /* Set COMP1 */ |