diff options
Diffstat (limited to 'src/northbridge/amd')
| -rw-r--r-- | src/northbridge/amd/amdk8/raminit_f.c | 85 |
1 files changed, 73 insertions, 12 deletions
diff --git a/src/northbridge/amd/amdk8/raminit_f.c b/src/northbridge/amd/amdk8/raminit_f.c index 7a9dc60930..3b51286d96 100644 --- a/src/northbridge/amd/amdk8/raminit_f.c +++ b/src/northbridge/amd/amdk8/raminit_f.c @@ -1,8 +1,23 @@ -/* This should be done by Eric - 2004.11 yhlu add 4 rank DIMM support - 2004.12 yhlu add D0 support - 2005.02 yhlu add E0 memory hole support - 2005.10 yhlu make it support DDR2 only +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2002 Linux Networx + * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx) + * Copyright (C) 2004 YingHai Lu + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include <cpu/x86/mem.h> @@ -819,10 +834,10 @@ static void set_dimm_size(const struct mem_controller *ctrl, struct dimm_size *s uint32_t ClkDis0; #if CPU_SOCKET_TYPE == 0x10 /* L1 */ ClkDis0 = DTL_MemClkDis0; -#else - #if CPU_SOCKET_TYPE == 0x11 /* AM2 */ +#elif CPU_SOCKET_TYPE == 0x11 /* AM2 */ ClkDis0 = DTL_MemClkDis0_AM2; - #endif +#elif CPU_SOCKET_TYPE == 0x12 /* S1G1 */ + ClkDis0 = DTL_MemClkDis0_S1g1; #endif dword = pci_read_config32(ctrl->f2, DRAM_TIMING_LOW); //Channel A @@ -2053,10 +2068,16 @@ static void set_DramTerm(const struct mem_controller *ctrl, const struct mem_par } } - dcl = pci_read_config32(ctrl->f2, DRAM_CONFIG_LOW); - dcl &= ~(DCL_DramTerm_MASK<<DCL_DramTerm_SHIFT); - dcl |= (odt & DCL_DramTerm_MASK) << (DCL_DramTerm_SHIFT); - pci_write_config32(ctrl->f2, DRAM_CONFIG_LOW, dcl); + + +#if DIMM_SUPPORT == 0x0204 + odt = 0x2; /* 150 ohms */ +#endif + + dcl = pci_read_config32(ctrl->f2, DRAM_CONFIG_LOW); + dcl &= ~(DCL_DramTerm_MASK<<DCL_DramTerm_SHIFT); + dcl |= (odt & DCL_DramTerm_MASK) << (DCL_DramTerm_SHIFT); + pci_write_config32(ctrl->f2, DRAM_CONFIG_LOW, dcl); } @@ -2237,6 +2258,46 @@ static void set_misc_timing(const struct mem_controller *ctrl, struct mem_info * #endif +#if DIMM_SUPPORT==0x0204 /* DDR2 and SO-DIMM, S1G1 */ + dword = 0x00111222; + dwordx = 0x002F2F00; + + switch (meminfo->memclk_set) { + case DCH_MemClkFreq_200MHz: /* nothing to be set here */ + break; + case DCH_MemClkFreq_266MHz: + if ((meminfo->single_rank_mask == 0) + && (meminfo->x4_mask == 0) && (meminfo->x16_mask)) + dwordx = 0x002C2C00; /* Double rank x8 */ + /* else SRx16, SRx8, DRx16 == 0x002F2F00 */ + break; + case DCH_MemClkFreq_333MHz: + if ((meminfo->single_rank_mask == 1) + && (meminfo->x16_mask == 1)) /* SR x16 */ + dwordx = 0x00272700; + else if ((meminfo->x4_mask == 0) && (meminfo->x16_mask == 0) + && (meminfo->single_rank_mask == 0)) { /* DR x8 */ + SlowAccessMode = 1; + dwordx = 0x00002800; + } else { /* SR x8, DR x16 */ + dwordx = 0x002A2A00; + } + break; + case DCH_MemClkFreq_400MHz: + if ((meminfo->single_rank_mask == 1) + && (meminfo->x16_mask == 1)) /* SR x16 */ + dwordx = 0x00292900; + else if ((meminfo->x4_mask == 0) && (meminfo->x16_mask == 0) + && (meminfo->single_rank_mask == 0)) { /* DR x8 */ + SlowAccessMode = 1; + dwordx = 0x00002A00; + } else { /* SR x8, DR x16 */ + dwordx = 0x002A2A00; + } + break; + } +#endif + #if DIMM_SUPPORT==0x0004 /* DDR2 and unbuffered */ /* for UNBUF DIMM */ dword = 0x00111222; |