diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge')
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_common.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c index 3527c8e520..3ab8df2403 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.c +++ b/src/northbridge/intel/sandybridge/raminit_common.c @@ -1953,6 +1953,12 @@ static int get_precedening_channels(ramctr_timing *ctrl, int target_channel) return ret; } +/* Each cacheline is 64 bits long */ +static void program_wdb_pattern_length(int channel, const unsigned int num_cachelines) +{ + MCHBAR8(IOSAV_DATA_CTL_ch(channel)) = num_cachelines / 8 - 1; +} + static void fill_pattern0(ramctr_timing *ctrl, int channel, u32 a, u32 b) { unsigned int j; @@ -1962,6 +1968,8 @@ static void fill_pattern0(ramctr_timing *ctrl, int channel, u32 a, u32 b) write32((void *)(0x04000000 + channel_offset + 4 * j), j & 2 ? b : a); sfence(); + + program_wdb_pattern_length(channel, 8); } static int num_of_channels(const ramctr_timing *ctrl) @@ -1985,6 +1993,8 @@ static void fill_pattern1(ramctr_timing *ctrl, int channel) write32((void *)(0x04000000 + channel_offset + channel_step + j * 4), 0); sfence(); + + program_wdb_pattern_length(channel, 16); } static void precharge(ramctr_timing *ctrl) @@ -2370,10 +2380,10 @@ static void adjust_high_timB(ramctr_timing *ctrl) MCHBAR32(GDCRTRAININGMOD) = 0x200; FOR_ALL_POPULATED_CHANNELS { fill_pattern1(ctrl, channel); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 1; } FOR_ALL_POPULATED_CHANNELS FOR_ALL_POPULATED_RANKS { + /* Reset read and write WDB pointers */ MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x10001; wait_for_iosav(channel); @@ -2728,7 +2738,6 @@ int write_training(ramctr_timing *ctrl) FOR_ALL_POPULATED_CHANNELS { fill_pattern0(ctrl, channel, 0xaaaaaaaa, 0x55555555); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; } FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { @@ -2770,6 +2779,7 @@ static int test_320c(ramctr_timing *ctrl, int channel, int slotrank) MCHBAR32(IOSAV_By_ERROR_COUNT(lane)) = 0; } + /* Reset read WDB pointer */ MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; wait_for_iosav(channel); @@ -2937,6 +2947,8 @@ static void fill_pattern5(ramctr_timing *ctrl, int channel, int patno) } sfence(); } + + program_wdb_pattern_length(channel, 256); } static void reprogram_320c(ramctr_timing *ctrl) @@ -3104,7 +3116,6 @@ int command_training(ramctr_timing *ctrl) FOR_ALL_POPULATED_CHANNELS { fill_pattern5(ctrl, channel, 0); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; } FOR_ALL_POPULATED_CHANNELS { @@ -3312,7 +3323,6 @@ int discover_edges(ramctr_timing *ctrl) FOR_ALL_POPULATED_CHANNELS { fill_pattern0(ctrl, channel, 0, 0); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; FOR_ALL_LANES { MCHBAR32(IOSAV_By_BW_SERROR_C_ch(channel, lane)); } @@ -3563,7 +3573,6 @@ int discover_edges(ramctr_timing *ctrl) } fill_pattern0(ctrl, channel, 0, 0xffffffff); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; } /* @@ -3631,7 +3640,6 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel, int slotr for (pat = 0; pat < NUM_PATTERNS; pat++) { fill_pattern5(ctrl, channel, pat); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; printram("using pattern %d\n", pat); for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) { @@ -4000,7 +4008,6 @@ int discover_timC_write(ramctr_timing *ctrl) stats[MAX_TIMC] = 1; fill_pattern5(ctrl, channel, pat); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; for (timC = 0; timC < MAX_TIMC; timC++) { FOR_ALL_LANES { @@ -4130,8 +4137,6 @@ int channel_test(ramctr_timing *ctrl) } FOR_ALL_POPULATED_CHANNELS { fill_pattern0(ctrl, channel, 0x12345678, 0x98765432); - - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; } for (slotrank = 0; slotrank < 4; slotrank++) @@ -4272,7 +4277,6 @@ void channel_scrub(ramctr_timing *ctrl) FOR_ALL_POPULATED_CHANNELS { wait_for_iosav(channel); fill_pattern0(ctrl, channel, 0, 0); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0; } /* |