diff options
Diffstat (limited to 'src/cpu/amd/model_lx/msrinit.c')
| -rw-r--r-- | src/cpu/amd/model_lx/msrinit.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/cpu/amd/model_lx/msrinit.c b/src/cpu/amd/model_lx/msrinit.c new file mode 100644 index 0000000000..2ed7c94f71 --- /dev/null +++ b/src/cpu/amd/model_lx/msrinit.c @@ -0,0 +1,53 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 coresystems GmbH + * + * 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 + */ + +struct msrinit { + u32 msrnum; + msr_t msr; +}; + +static const struct msrinit msr_table[] = +{ + {CPU_RCONF_DEFAULT, {.hi = 0x24fffc02,.lo = 0x1000A000}}, /* Setup access to cache under 1MB. + * Rom Properties: Write Serialize, WriteProtect. + * RomBase: 0xFFFC0 + * SysTop to RomBase Properties: Write Serialize, Cache Disable. + * SysTop: 0x000A0 + * System Memory Properties: (Write Back) */ + {CPU_RCONF_A0_BF, {.hi = 0x00000000,.lo = 0x00000000}}, /* 0xA0000-0xBFFFF : (Write Back) */ + {CPU_RCONF_C0_DF, {.hi = 0x00000000,.lo = 0x00000000}}, /* 0xC0000-0xDFFFF : (Write Back) */ + {CPU_RCONF_E0_FF, {.hi = 0x00000000,.lo = 0x00000000}}, /* 0xE0000-0xFFFFF : (Write Back) */ + + /* Setup access to memory under 1MB. Note: VGA hole at 0xA0000-0xBFFFF */ + {MSR_GLIU0_BASE1, {.hi = 0x20000000,.lo = 0x000fff80}}, // 0x00000-0x7FFFF + {MSR_GLIU0_BASE2, {.hi = 0x20000000,.lo = 0x080fffe0}}, // 0x80000-0x9FFFF + {MSR_GLIU0_SHADOW, {.hi = 0x2000FFFF,.lo = 0xFFFF0003}}, // 0xC0000-0xFFFFF + {MSR_GLIU1_BASE1, {.hi = 0x20000000,.lo = 0x000fff80}}, // 0x00000-0x7FFFF + {MSR_GLIU1_BASE2, {.hi = 0x20000000,.lo = 0x080fffe0}}, // 0x80000-0x9FFFF + {MSR_GLIU1_SHADOW, {.hi = 0x2000FFFF,.lo = 0xFFFF0003}}, // 0xC0000-0xFFFFF +}; + +static void msr_init(void) +{ + int i; + for (i = 0; i < ARRAY_SIZE(msr_table); i++) + wrmsr(msr_table[i].msrnum, msr_table[i].msr); +} + + |