diff options
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_common.c | 37 | ||||
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_common.h | 28 |
2 files changed, 48 insertions, 17 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c index 8418ccd97f..d2049c1adc 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.c +++ b/src/northbridge/intel/sandybridge/raminit_common.c @@ -1029,23 +1029,26 @@ void program_timings(ramctr_timing *ctrl, int channel) ctrl->timings[channel][slotrank].roundtrip_latency << (8 * slotrank); FOR_ALL_LANES { - MCHBAR32(lane_base[lane] + GDCRRX(channel, slotrank)) = - ((ctrl->timings[channel][slotrank].lanes[lane].timA & 0x3f) - | - (ctrl->timings[channel][slotrank].lanes[lane].rising << 8) - | - ((ctrl->timings[channel][slotrank].lanes[lane].timA & 0x1c0) << 10) - | - (ctrl->timings[channel][slotrank].lanes[lane].falling << 20)); - - MCHBAR32(lane_base[lane] + GDCRTX(channel, slotrank)) = - ((ctrl->timings[channel][slotrank].lanes[lane].timC & 0x3f) - | - ((ctrl->timings[channel][slotrank].lanes[lane].timB & 0x3f) << 8) - | - ((ctrl->timings[channel][slotrank].lanes[lane].timB & 0x1c0) << 9) - | - ((ctrl->timings[channel][slotrank].lanes[lane].timC & 0x40) << 13)); + const u16 timA = ctrl->timings[channel][slotrank].lanes[lane].timA; + const u8 dqs_p = ctrl->timings[channel][slotrank].lanes[lane].rising; + const u8 dqs_n = ctrl->timings[channel][slotrank].lanes[lane].falling; + const union gdcr_rx_reg gdcr_rx = { + .rcven_pi_code = timA % 64, + .rx_dqs_p_pi_code = dqs_p, + .rcven_logic_delay = timA / 64, + .rx_dqs_n_pi_code = dqs_n, + }; + MCHBAR32(lane_base[lane] + GDCRRX(channel, slotrank)) = gdcr_rx.raw; + + const u16 timB = ctrl->timings[channel][slotrank].lanes[lane].timB; + const int timC = ctrl->timings[channel][slotrank].lanes[lane].timC; + const union gdcr_tx_reg gdcr_tx = { + .tx_dq_pi_code = timC % 64, + .tx_dqs_pi_code = timB % 64, + .tx_dqs_logic_delay = timB / 64, + .tx_dq_logic_delay = timC / 64, + }; + MCHBAR32(lane_base[lane] + GDCRTX(channel, slotrank)) = gdcr_tx.raw; } } MCHBAR32(SC_ROUNDT_LAT_ch(channel)) = reg_roundtrip_latency; diff --git a/src/northbridge/intel/sandybridge/raminit_common.h b/src/northbridge/intel/sandybridge/raminit_common.h index debfaa2f2a..8c92c17ce8 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.h +++ b/src/northbridge/intel/sandybridge/raminit_common.h @@ -98,6 +98,34 @@ struct iosav_ssq { } addr_update; }; +union gdcr_rx_reg { + struct { + u32 rcven_pi_code : 6; /* [ 5.. 0] */ + u32 : 2; + u32 rx_dqs_p_pi_code : 7; /* [14.. 8] */ + u32 : 1; + u32 rcven_logic_delay : 3; /* [18..16] */ + u32 : 1; + u32 rx_dqs_n_pi_code : 7; /* [26..20] */ + u32 : 5; + }; + u32 raw; +}; + +union gdcr_tx_reg { + struct { + u32 tx_dq_pi_code : 6; /* [ 5.. 0] */ + u32 : 2; + u32 tx_dqs_pi_code : 6; /* [13.. 8] */ + u32 : 1; + u32 tx_dqs_logic_delay : 3; /* [17..15] */ + u32 : 1; + u32 tx_dq_logic_delay : 1; /* [19..19] */ + u32 : 12; + }; + u32 raw; +}; + union gdcr_cmd_pi_coding_reg { struct { u32 cmd_pi_code : 6; /* [ 5.. 0] */ |