From 7c0c64e1033b4edf9a488e8e31948726ee17465e Mon Sep 17 00:00:00 2001 From: efdesign98 Date: Mon, 20 Jun 2011 19:56:06 -0700 Subject: Addition of Family12/SB900 wrapper code This change adds the wrapper code for the AMD Family12 cpus and the AMD Hudson-2 (SB900) southbridge to the cpu, northbridge and southbridge folders respectively. Change-Id: I22b6efe0017d0af03eaa36a1db1615e5f38da06c Signed-off-by: Frank Vibrans Signed-off-by: efdesign98 Reviewed-on: http://review.coreboot.org/53 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/cpu/amd/agesa/family12/model_12_init.c | 138 +++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100755 src/cpu/amd/agesa/family12/model_12_init.c (limited to 'src/cpu/amd/agesa/family12/model_12_init.c') diff --git a/src/cpu/amd/agesa/family12/model_12_init.c b/src/cpu/amd/agesa/family12/model_12_init.c new file mode 100755 index 0000000000..d74b33308b --- /dev/null +++ b/src/cpu/amd/agesa/family12/model_12_init.c @@ -0,0 +1,138 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define MCI_STATUS 0x401 + +msr_t rdmsr_amd(u32 index) +{ + msr_t result; + __asm__ __volatile__( + "rdmsr" + :"=a"(result.lo), "=d"(result.hi) + :"c"(index), "D"(0x9c5a203a) + ); + return result; +} + +void wrmsr_amd(u32 index, msr_t msr) +{ + __asm__ __volatile__( + "wrmsr" + : /* No outputs */ + :"c"(index), "a"(msr.lo), "d"(msr.hi), "D"(0x9c5a203a) + ); +} + +static void model_12_init(device_t dev) +{ + printk(BIOS_DEBUG, "Model 12 Init - a no-op.\n"); + + u8 i; + msr_t msr; + struct node_core_id id; +#if CONFIG_LOGICAL_CPUS == 1 + u32 siblings; +#endif + +// id = get_node_core_id(read_nb_cfg_54()); /* nb_cfg_54 can not be set */ +// printk(BIOS_DEBUG, "nodeid = %02d, coreid = %02d\n", id.nodeid, id.coreid); + + /* Turn on caching if we haven't already */ + x86_enable_cache(); + amd_setup_mtrrs(); + x86_mtrr_check(); + + disable_cache(); + + /* zero the machine check error status registers */ + msr.lo = 0; + msr.hi = 0; + for (i = 0; i < 5; i++) { + wrmsr(MCI_STATUS + (i * 4), msr); + } + + enable_cache(); + + /* Enable the local cpu apics */ + setup_lapic(); + + /* Set the processor name string */ +// init_processor_name(); + + +#if CONFIG_LOGICAL_CPUS == 1 + siblings = cpuid_ecx(0x80000008) & 0xff; + + if (siblings > 0) { + msr = rdmsr_amd(CPU_ID_FEATURES_MSR); + msr.lo |= 1 << 28; + wrmsr_amd(CPU_ID_FEATURES_MSR, msr); + + msr = rdmsr_amd(CPU_ID_EXT_FEATURES_MSR); + msr.hi |= 1 << (33 - 32); + wrmsr_amd(CPU_ID_EXT_FEATURES_MSR, msr); + } + printk(BIOS_DEBUG, "siblings = %02d, ", siblings); +#endif + + /* DisableCf8ExtCfg */ + msr = rdmsr(NB_CFG_MSR); + msr.hi &= ~(1 << (46 - 32)); + wrmsr(NB_CFG_MSR, msr); + + + /* Write protect SMM space with SMMLOCK. */ + msr = rdmsr(HWCR_MSR); + msr.lo |= (1 << 0); + wrmsr(HWCR_MSR, msr); +} + +static struct device_operations cpu_dev_ops = { + .init = model_12_init, +}; + +static struct cpu_device_id cpu_table[] = { + { X86_VENDOR_AMD, 0x300f00 }, /* LN1_A0x */ + { X86_VENDOR_AMD, 0x300f01 }, /* LN1_A1x */ + { X86_VENDOR_AMD, 0x300f10 }, /* LN1_B0x */ + { X86_VENDOR_AMD, 0x300f20 }, /* LN2_B0x */ + { 0, 0 }, +}; + +static const struct cpu_driver model_12 __cpu_driver = { + .ops = &cpu_dev_ops, + .id_table = cpu_table, +}; -- cgit v1.2.3