diff options
Diffstat (limited to 'src/southbridge/intel/common')
| -rw-r--r-- | src/southbridge/intel/common/pmbase.c | 13 | ||||
| -rw-r--r-- | src/southbridge/intel/common/pmutil.h | 2 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/southbridge/intel/common/pmbase.c b/src/southbridge/intel/common/pmbase.c index 360b63d9e4..2de57d6da4 100644 --- a/src/southbridge/intel/common/pmbase.c +++ b/src/southbridge/intel/common/pmbase.c @@ -14,13 +14,16 @@ */ #include <stdint.h> +#include <arch/acpi.h> #include <arch/io.h> #include <device/device.h> #include <device/pci.h> #include <arch/early_variables.h> #include <assert.h> +#include <security/vboot/vboot_common.h> #include "pmbase.h" +#include "pmutil.h" /* LPC PM Base Address Register */ #define PMBASE 0x40 @@ -91,3 +94,13 @@ u8 read_pmbase8(const u8 addr) return inb(lpc_get_pmbase() + addr); } + +int vboot_platform_is_resuming(void) +{ + u16 reg16 = read_pmbase16(PM1_STS); + + if (!(reg16 & WAK_STS)) + return 0; + + return acpi_sleep_from_pm1(reg16) == ACPI_S3; +} diff --git a/src/southbridge/intel/common/pmutil.h b/src/southbridge/intel/common/pmutil.h index 273e0f8e9d..26134d9fad 100644 --- a/src/southbridge/intel/common/pmutil.h +++ b/src/southbridge/intel/common/pmutil.h @@ -17,6 +17,8 @@ #ifndef INTEL_COMMON_PMUTIL_H #define INTEL_COMMON_PMUTIL_H +#include <cpu/x86/smm.h> + #define D31F0_PMBASE 0x40 #define D31F0_GEN_PMCON_3 0xa4 #define D31F0_GPIO_ROUT 0xb8 |