diff options
Diffstat (limited to 'src/northbridge/intel')
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_native.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_native.c b/src/northbridge/intel/sandybridge/raminit_native.c index a5694118d1..e567ccee02 100644 --- a/src/northbridge/intel/sandybridge/raminit_native.c +++ b/src/northbridge/intel/sandybridge/raminit_native.c @@ -812,7 +812,6 @@ static void dram_timing_regs(ramctr_timing * ctrl) static void dram_dimm_mapping(dimm_info * info, ramctr_timing * ctrl) { - int t; u32 reg, val32; int channel; @@ -832,11 +831,6 @@ static void dram_dimm_mapping(dimm_info * info, ramctr_timing * ctrl) dimmA = &info->dimm[channel][1]; dimmB = &info->dimm[channel][0]; reg |= (1 << 16); - // swap dimm info - t = ctrl->rank_mirror[channel][1]; - ctrl->rank_mirror[channel][1] = - ctrl->rank_mirror[channel][3]; - ctrl->rank_mirror[channel][3] = t; } // dimmA if (dimmA && (dimmA->ranks > 0)) { @@ -1231,6 +1225,9 @@ static void write_mrreg(ramctr_timing * ctrl, int channel, int slotrank, printram("MRd: %x <= %x\n", reg, val); if (ctrl->rank_mirror[channel][slotrank]) { + /* DDR3 Rank1 Address mirror + * swap the following pins: + * A3<->A4, A5<->A6, A7<->A8, BA0<->BA1 */ reg = ((reg >> 1) & 1) | ((reg << 1) & 2); val = (val & ~0x1f8) | ((val >> 1) & 0xa8) | ((val & 0xa8) << 1); |