diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2017-05-25 19:55:52 +0200 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-05-24 13:05:32 +0000 |
| commit | 0d284959dcaf16416ce27b480339144fd6068bfe (patch) | |
| tree | 5add4dd81fba292a6ef487ef2d1980e6b53c0e19 /src/northbridge/intel | |
| parent | 3fa103a60261a3cd1925858a317dc1ffa89797f7 (diff) | |
nb/intel/x4x: Adapt post JEDEC for DDR3
Change-Id: I708f98dc2f36af73bb5933d186b4984649e149a1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19918
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/northbridge/intel')
| -rw-r--r-- | src/northbridge/intel/x4x/raminit_ddr23.c | 19 | ||||
| -rw-r--r-- | src/northbridge/intel/x4x/raminit_tables.c | 17 | ||||
| -rw-r--r-- | src/northbridge/intel/x4x/x4x.h | 1 |
3 files changed, 33 insertions, 4 deletions
diff --git a/src/northbridge/intel/x4x/raminit_ddr23.c b/src/northbridge/intel/x4x/raminit_ddr23.c index cbec4acf9f..4dbee329f6 100644 --- a/src/northbridge/intel/x4x/raminit_ddr23.c +++ b/src/northbridge/intel/x4x/raminit_ddr23.c @@ -2109,10 +2109,21 @@ void do_raminit(struct sysinfo *s, int fast_boot) // After JEDEC reset MCHBAR8(0x40) = MCHBAR8(0x40) & ~0x2; FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { - if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) - reg32 = (2 << 18) | (3 << 13) | (5 << 8); - else - reg32 = (2 << 18) | (3 << 13) | (4 << 8); + reg32 = (2 << 18); + reg32 |= post_jedec_tab[s->selected_timings.fsb_clk] + [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][0] + << 13; + if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz && + s->selected_timings.fsb_clk == FSB_CLOCK_1066MHz && + ch == 1) { + reg32 |= (post_jedec_tab[s->selected_timings.fsb_clk] + [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][1] + - 1) << 8; + } else { + reg32 |= post_jedec_tab[s->selected_timings.fsb_clk] + [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][1] + << 8; + } MCHBAR32(0x400*ch + 0x274) = (MCHBAR32(0x400*ch + 0x274) & ~0xfff00) | reg32; MCHBAR8(0x400*ch + 0x274) = MCHBAR8(0x400*ch + 0x274) & ~0x80; MCHBAR8(0x400*ch + 0x26c) = MCHBAR8(0x400*ch + 0x26c) | 1; diff --git a/src/northbridge/intel/x4x/raminit_tables.c b/src/northbridge/intel/x4x/raminit_tables.c index 8ff93c9230..401af15cd8 100644 --- a/src/northbridge/intel/x4x/raminit_tables.c +++ b/src/northbridge/intel/x4x/raminit_tables.c @@ -289,6 +289,23 @@ const u8 ddr3_emrs1_rtt_nom_config[16][4] = { /* [Config][Rank] */ {0x81, 0x00, 0x81, 0x00}, /* 16S_16S */ }; +const u8 post_jedec_tab[3][4][2]= /* [FSB][DDR freq][17:13 or 12:8] */ +{ /* FSB DDR */ + {{0x3, 0x5}, /* 800 667 */ + {0x3, 0x4}, /* 800 800 */ + }, + {{0x4, 0x8}, /* 1067 667 */ + {0x4, 0x6}, /* 1067 800 */ + {0x3, 0x5}, /* 1067 1066 */ + }, + {{0x5, 0x9}, /* 1333 667 */ + {0x4, 0x7}, /* 1333 800 */ + {0x4, 0x7}, /* 1333 1066 */ + {0x4, 0x7} /* 1333 1333 */ + }, +}; + + const u32 ddr3_c2_tab[2][3][6][2] = { /* [n-mode][ddr3 freq][CAS][reg] */ /* 115h[15:0] 117h[23:0] */ { /* 1N mode */ diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h index 13ca783ac9..95f618d1c6 100644 --- a/src/northbridge/intel/x4x/x4x.h +++ b/src/northbridge/intel/x4x/x4x.h @@ -392,6 +392,7 @@ extern const struct dll_setting default_ddr3_800_dq[2][TOTAL_BYTELANES]; extern const struct dll_setting default_ddr3_1067_dq[2][TOTAL_BYTELANES]; extern const struct dll_setting default_ddr3_1333_dq[2][TOTAL_BYTELANES]; extern const u8 ddr3_emrs1_rtt_nom_config[16][4]; +extern const u8 post_jedec_tab[3][4][2]; extern const u32 ddr3_c2_tab[2][3][6][2]; extern const u8 ddr3_c2_x264[3][6]; extern const u16 ddr3_c2_x23c[3][6]; |