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Check to see if K8 processor is capable of changing FIDVID otherwise it will throw a GP# when reading FIDVID_STATUS 

Signed-off-by: Dan Lykowski <lykowdk@gmail.com>
Acked-by: Zheng Bao <zheng.bao@amd.com>

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3856 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Dan Lykowski 2009-01-12 16:16:08 +00:00 committed by Marc Jones
parent 6fa7e6dae9
commit 6ef8e0f3e3
3 changed files with 49 additions and 16 deletions
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27
src/mainboard/amd/dbm690t/cache_as_ram_auto.c
View File

@ -161,6 +161,7 @@ void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
int needs_reset = 0;
u32 bsp_apicid = 0;
msr_t msr;
struct cpuid_result cpuid1;
struct sys_info *sysinfo = (struct sys_info *)(DCACHE_RAM_BASE + DCACHE_RAM_SIZE - DCACHE_RAM_GLOBAL_VAR_SIZE);
@ -197,16 +198,26 @@ void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
rs690_early_setup();
sb600_early_setup();
msr=rdmsr(0xc0010042);
printk_debug("begin msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
/* Check to see if processor is capable of changing FIDVID */
/* otherwise it will throw a GP# when reading FIDVID_STATUS */
cpuid1 = cpuid(0x80000007);
if( (cpuid1.edx & 0x6) == 0x6 ) {
enable_fid_change();
enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
init_fidvid_bsp(bsp_apicid);
/* Read FIDVID_STATUS */
msr=rdmsr(0xc0010042);
printk_debug("begin msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
/* show final fid and vid */
msr=rdmsr(0xc0010042);
printk_debug("end msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
enable_fid_change();
enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
init_fidvid_bsp(bsp_apicid);
/* show final fid and vid */
msr=rdmsr(0xc0010042);
printk_debug("end msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
} else {
printk_debug("Changing FIDVID not supported\n");
}
needs_reset = optimize_link_coherent_ht();
needs_reset |= optimize_link_incoherent_ht(sysinfo);

27
src/mainboard/amd/pistachio/cache_as_ram_auto.c
View File

@ -155,6 +155,7 @@ void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
int needs_reset = 0;
u32 bsp_apicid = 0;
msr_t msr;
struct cpuid_result cpuid1;
struct sys_info *sysinfo =
(struct sys_info *)(DCACHE_RAM_BASE + DCACHE_RAM_SIZE -
DCACHE_RAM_GLOBAL_VAR_SIZE);
@ -198,16 +199,26 @@ void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
post_code(0x04);
msr = rdmsr(0xc0010042);
printk_debug("begin msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
/* Check to see if processor is capable of changing FIDVID */
/* otherwise it will throw a GP# when reading FIDVID_STATUS */
cpuid1 = cpuid(0x80000007);
if( (cpuid1.edx & 0x6) == 0x6 ) {
enable_fid_change();
enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
init_fidvid_bsp(bsp_apicid);
/* Read FIDVID_STATUS */
msr=rdmsr(0xc0010042);
printk_debug("begin msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
// show final fid and vid
msr = rdmsr(0xc0010042);
printk_debug("end msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
enable_fid_change();
enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
init_fidvid_bsp(bsp_apicid);
/* show final fid and vid */
msr=rdmsr(0xc0010042);
printk_debug("end msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
} else {
printk_debug("Changing FIDVID not supported\n");
}
post_code(0x05);

11
src/mainboard/amd/serengeti_cheetah/cache_as_ram_auto.c
View File

@ -259,6 +259,7 @@ void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
int needs_reset; int i;
unsigned bsp_apicid = 0;
struct cpuid_result cpuid1;
if (bist == 0) {
bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
@ -311,8 +312,13 @@ void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
#endif
#if K8_SET_FIDVID == 1
/* Check to see if processor is capable of changing FIDVID */
/* otherwise it will throw a GP# when reading FIDVID_STATUS */
cpuid1 = cpuid(0x80000007);
if( (cpuid1.edx & 0x6) == 0x6 ) {
{
/* Read FIDVID_STATUS */
msr_t msr;
msr=rdmsr(0xc0010042);
print_debug("begin msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");
@ -332,6 +338,11 @@ void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
print_debug("end msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");
}
} else {
print_debug("Changing FIDVID not supported\n");
}
#endif
#if 1