diff options
Diffstat (limited to 'src/southbridge/intel/bd82x6x/smi.c')
| -rw-r--r-- | src/southbridge/intel/bd82x6x/smi.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/src/southbridge/intel/bd82x6x/smi.c b/src/southbridge/intel/bd82x6x/smi.c index bd88df2066..c89ae18636 100644 --- a/src/southbridge/intel/bd82x6x/smi.c +++ b/src/southbridge/intel/bd82x6x/smi.c @@ -398,11 +398,19 @@ void smm_lock(void) void smm_setup_structures(void *gnvs, void *tcg, void *smi1) { - /* The GDT or coreboot table is going to live here. But a long time - * after we relocated the GNVS, so this is not troublesome. + /* + * Issue SMI to set the gnvs pointer in SMM. + * tcg and smi1 are unused. + * + * EAX = APM_CNT_GNVS_UPDATE + * EBX = gnvs pointer + * EDX = APM_CNT */ - *(u32 *)0x500 = (u32)gnvs; - *(u32 *)0x504 = (u32)tcg; - *(u32 *)0x508 = (u32)smi1; - outb(0xea, 0xb2); + asm volatile ( + "outb %%al, %%dx\n\t" + : /* ignore result */ + : "a" (APM_CNT_GNVS_UPDATE), + "b" ((u32)gnvs), + "d" (APM_CNT) + ); } |