diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/apollolake/pmutil.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/pmutil.c b/src/soc/intel/apollolake/pmutil.c index 2aef18c8e6..56bb33dc40 100644 --- a/src/soc/intel/apollolake/pmutil.c +++ b/src/soc/intel/apollolake/pmutil.c @@ -17,6 +17,7 @@ #define __SIMPLE_DEVICE__ +#include <arch/acpi.h> #include <arch/io.h> #include <console/console.h> #include <cbmem.h> @@ -301,6 +302,26 @@ uint32_t clear_gpe_status(void) return print_gpe_sts(reset_gpe_status()); } +/* Read and clear GPE status (defined in arch/acpi.h) */ +int acpi_get_gpe(int gpe) +{ + int bank; + uint32_t mask, sts; + + if (gpe < 0 || gpe > GPE0_DW3_31) + return -1; + + bank = gpe / 32; + mask = 1 << (gpe % 32); + + sts = inl(ACPI_PMIO_BASE + GPE0_STS(bank)); + if (sts & mask) { + outl(mask, ACPI_PMIO_BASE + GPE0_STS(bank)); + return 1; + } + return 0; +} + void clear_pmc_status(void) { uint32_t prsts; |