diff options
Diffstat (limited to 'src/northbridge/intel/x4x')
| -rw-r--r-- | src/northbridge/intel/x4x/raminit_ddr23.c | 87 | ||||
| -rw-r--r-- | src/northbridge/intel/x4x/x4x.h | 1 |
2 files changed, 79 insertions, 9 deletions
diff --git a/src/northbridge/intel/x4x/raminit_ddr23.c b/src/northbridge/intel/x4x/raminit_ddr23.c index 784a6d70a4..0e64213d50 100644 --- a/src/northbridge/intel/x4x/raminit_ddr23.c +++ b/src/northbridge/intel/x4x/raminit_ddr23.c @@ -171,27 +171,96 @@ static void setioclk_dram(struct sysinfo *s) static void launch_dram(struct sysinfo *s) { u8 i; - u32 launch1 = 0x58001117; + u32 launch1; u32 launch2 = 0; - u32 launch3 = 0; - if (s->selected_timings.CAS == 5) - launch2 = 0x00220201; - else if (s->selected_timings.CAS == 6) - launch2 = 0x00230302; - else - die("Unsupported CAS\n"); + static const u32 ddr3_launch1_tab[2][3] = { + /* 1N */ + {0x58000007, /* DDR3 800 */ + 0x58000007, /* DDR3 1067 */ + 0x58100107}, /* DDR3 1333 */ + /* 2N */ + {0x58001117, /* DDR3 800 */ + 0x58001117, /* DDR3 1067 */ + 0x58001117} /* DDR3 1333 */ + }; + + static const u32 ddr3_launch2_tab[2][3][6] = { + { /* 1N */ + /* DDR3 800 */ + {0x08030000, /* CL = 5 */ + 0x0C040100}, /* CL = 6 */ + /* DDR3 1066 */ + {0x00000000, /* CL = 5 */ + 0x00000000, /* CL = 6 */ + 0x10050100, /* CL = 7 */ + 0x14260200}, /* CL = 8 */ + /* DDR3 1333 */ + {0x00000000, /* CL = 5 */ + 0x00000000, /* CL = 6 */ + 0x00000000, /* CL = 7 */ + 0x14060000, /* CL = 8 */ + 0x18070100, /* CL = 9 */ + 0x1C280200}, /* CL = 10 */ + + }, + { /* 2N */ + /* DDR3 800 */ + {0x00040101, /* CL = 5 */ + 0x00250201}, /* CL = 6 */ + /* DDR3 1066 */ + {0x00000000, /* CL = 5 */ + 0x00050101, /* CL = 6 */ + 0x04260201, /* CL = 7 */ + 0x08470301}, /* CL = 8 */ + /* DDR3 1333 */ + {0x00000000, /* CL = 5 */ + 0x00000000, /* CL = 6 */ + 0x00000000, /* CL = 7 */ + 0x08070100, /* CL = 8 */ + 0x0C280200, /* CL = 9 */ + 0x10490300} /* CL = 10 */ + } + }; + + if (s->spd_type == DDR2) { + launch1 = 0x58001117; + if (s->selected_timings.CAS == 5) + launch2 = 0x00220201; + else if (s->selected_timings.CAS == 6) + launch2 = 0x00230302; + else + die("Unsupported CAS\n"); + } else { /* DDR3 */ + /* Default 2N mode */ + s->nmode = 2; + + if (s->selected_timings.mem_clk <= MEM_CLOCK_1066MHz) + s->nmode = 1; + /* 2N on DDR3 1066 with with 2 dimms per channel */ + if ((s->selected_timings.mem_clk == MEM_CLOCK_1066MHz) && + (BOTH_DIMMS_ARE_POPULATED(s->dimms, 0) || + BOTH_DIMMS_ARE_POPULATED(s->dimms, 1))) + s->nmode = 2; + launch1 = ddr3_launch1_tab[s->nmode - 1] + [s->selected_timings.mem_clk - MEM_CLOCK_800MHz]; + launch2 = ddr3_launch2_tab[s->nmode - 1] + [s->selected_timings.mem_clk - MEM_CLOCK_800MHz] + [s->selected_timings.CAS - 5]; + } FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { MCHBAR32(0x400*i + 0x220) = launch1; MCHBAR32(0x400*i + 0x224) = launch2; - MCHBAR32(0x400*i + 0x21c) = launch3; + MCHBAR32(0x400*i + 0x21c) = 0; MCHBAR32(0x400*i + 0x248) = MCHBAR32(0x400*i + 0x248) | (1 << 23); } MCHBAR32(0x2c0) = (MCHBAR32(0x2c0) & ~0x58000000) | 0x48000000; MCHBAR32(0x2c0) = MCHBAR32(0x2c0) | 0x1e0; MCHBAR32(0x2c4) = (MCHBAR32(0x2c4) & ~0xf) | 0xc; + if (s->spd_type == DDR3) + MCHBAR32(0x2c4) = MCHBAR32(0x2c4) | 0x100; } static void clkset0(u8 ch, const struct dll_setting *setting) diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h index f3b910f814..8532d60ed2 100644 --- a/src/northbridge/intel/x4x/x4x.h +++ b/src/northbridge/intel/x4x/x4x.h @@ -338,6 +338,7 @@ struct sysinfo { struct rt_dqs_setting rt_dqs[TOTAL_CHANNELS][TOTAL_BYTELANES]; struct dll_setting dqs_settings[TOTAL_CHANNELS][TOTAL_BYTELANES]; struct dll_setting dq_settings[TOTAL_CHANNELS][TOTAL_BYTELANES]; + u8 nmode; }; #define BOOT_PATH_NORMAL 0 #define BOOT_PATH_WARM_RESET 1 |