diff options
Diffstat (limited to 'src/northbridge/amd/amdk8/reset_test.c')
-rw-r--r-- | src/northbridge/amd/amdk8/reset_test.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/src/northbridge/amd/amdk8/reset_test.c b/src/northbridge/amd/amdk8/reset_test.c index ab48f9830e..9105324f33 100644 --- a/src/northbridge/amd/amdk8/reset_test.c +++ b/src/northbridge/amd/amdk8/reset_test.c @@ -9,29 +9,26 @@ static int cpu_init_detected(void) { - unsigned long dcl; - int cpu_init; + unsigned long htic; + htic = pci_read_config32(PCI_DEV(0, 0x18, 0), HT_INIT_CONTROL); + + return !!(htic & HTIC_INIT_Detect); +} +static int bios_reset_detected(void) +{ unsigned long htic; + htic = pci_read_config32(PCI_DEV(0, 0x18, 0), HT_INIT_CONTROL); + + return (htic & HTIC_ColdR_Detect) && !(htic & HTIC_BIOSR_Detect); +} +static int cold_reset_detected(void) +{ + unsigned long htic; htic = pci_read_config32(PCI_DEV(0, 0x18, 0), HT_INIT_CONTROL); -#if 0 - print_debug("htic: "); - print_debug_hex32(htic); - print_debug("\r\n"); - - if (!(htic & HTIC_ColdR_Detect)) { - print_debug("Cold Reset.\r\n"); - } - if ((htic & HTIC_ColdR_Detect) && !(htic & HTIC_BIOSR_Detect)) { - print_debug("BIOS generated Reset.\r\n"); - } - if (htic & HTIC_INIT_Detect) { - print_debug("Init event.\r\n"); - } -#endif - cpu_init = (htic & HTIC_INIT_Detect); - return cpu_init; + + return !(htic & HTIC_ColdR_Detect); } static void distinguish_cpu_resets(unsigned node_id) @@ -43,3 +40,11 @@ static void distinguish_cpu_resets(unsigned node_id) htic |= HTIC_ColdR_Detect | HTIC_BIOSR_Detect | HTIC_INIT_Detect; pci_write_config32(device, HT_INIT_CONTROL, htic); } + +static void set_bios_reset(void) +{ + unsigned long htic; + htic = pci_read_config32(PCI_DEV(0, 0x18, 0), HT_INIT_CONTROL); + htic &= ~HTIC_BIOSR_Detect; + pci_write_config32(PCI_DEV(0, 0x18, 0), HT_INIT_CONTROL, htic); +} |