diff options
Diffstat (limited to 'src/soc/intel/apollolake/acpi.c')
| -rw-r--r-- | src/soc/intel/apollolake/acpi.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c index 4d610f85bd..07a5fcbf88 100644 --- a/src/soc/intel/apollolake/acpi.c +++ b/src/soc/intel/apollolake/acpi.c @@ -22,10 +22,19 @@ #include <cbmem.h> #include <cpu/x86/smm.h> #include <soc/acpi.h> +#include <soc/intel/common/acpi.h> #include <soc/iomap.h> #include <soc/pm.h> #include <soc/nvs.h> +#define CSTATE_RES(address_space, width, offset, address) \ + { \ + .space_id = address_space, \ + .bit_width = width, \ + .bit_offset = offset, \ + .addrl = address, \ + } + unsigned long acpi_fill_mcfg(unsigned long current) { /* PCI Segment Group 0, Start Bus Number 0, End Bus Number is 255 */ @@ -157,3 +166,35 @@ void southbridge_inject_dsdt(device_t device) acpigen_pop_len(); } } +static acpi_cstate_t cstate_map[] = { + { + /* C1 */ + .ctype = 1, /* ACPI C1 */ + .latency = 1, + .power = 1000, + .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_FIXED, 0, 0, 0), + }, + { + .ctype = 2, /* ACPI C2 */ + .latency = 50, + .power = 10, + .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_IO, 8, 0, 0x415), + }, + { + .ctype = 3, /* ACPI C3 */ + .latency = 150, + .power = 10, + .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_IO, 8, 0, 0x419), + } +}; + +acpi_cstate_t *soc_get_cstate_map(int *entries) +{ + *entries = ARRAY_SIZE(cstate_map); + return cstate_map; +} + +uint16_t soc_get_acpi_base_address(void) +{ + return ACPI_PMIO_BASE; +} |