diff options
| author | Hannah Williams <hannah.williams@intel.com> | 2016-04-18 13:47:08 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-06-08 22:31:27 +0200 |
| commit | 0f61da85820c518341240ce0b60ebfec70187fc0 (patch) | |
| tree | d3205a573289764a5f66b00908ec89c6c6c476d5 /src | |
| parent | f8daa378614178263b705fbd9e1251bb4b8d148d (diff) | |
soc/apollolake: Add SOC specific c-state table
Please refer Apollolake BIOS Writers Guide
Change-Id: I5f82cdc4b34a53b5184ef1e918cae15a1df6cc5e
Signed-off-by: Hannah Williams <hannah.williams@intel.com>
Reviewed-on: https://review.coreboot.org/15051
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/apollolake/Kconfig | 1 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/acpi.c | 41 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/chip.c | 2 |
3 files changed, 44 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig index 7c21ed2fe0..98ce7d8c3c 100644 --- a/src/soc/intel/apollolake/Kconfig +++ b/src/soc/intel/apollolake/Kconfig @@ -39,6 +39,7 @@ config CPU_SPECIFIC_OPTIONS select SMM_TSEG select SOC_INTEL_COMMON select SOC_INTEL_COMMON_SMI + select SOC_INTEL_COMMON_ACPI select SPI_FLASH select UDELAY_TSC select TSC_CONSTANT_RATE 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; +} diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c index 17bceec225..7c8b6387a2 100644 --- a/src/soc/intel/apollolake/chip.c +++ b/src/soc/intel/apollolake/chip.c @@ -16,6 +16,7 @@ * GNU General Public License for more details. */ +#include <arch/acpi.h> #include <bootstate.h> #include <cbmem.h> #include <console/console.h> @@ -56,6 +57,7 @@ static struct device_operations cpu_bus_ops = { .enable_resources = DEVICE_NOOP, .init = apollolake_init_cpus, .scan_bus = NULL, + .acpi_fill_ssdt_generator = generate_cpu_entries, }; static void enable_dev(device_t dev) |