diff options
| -rw-r--r-- | src/soc/intel/alderlake/cpu.c | 57 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/include/soc/cpu.h | 9 |
2 files changed, 66 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/cpu.c b/src/soc/intel/alderlake/cpu.c index b97521215e..c5dc804c0f 100644 --- a/src/soc/intel/alderlake/cpu.c +++ b/src/soc/intel/alderlake/cpu.c @@ -8,6 +8,7 @@ #include <console/console.h> #include <device/pci.h> +#include <device/pci_ids.h> #include <cpu/x86/lapic.h> #include <cpu/x86/mp.h> #include <cpu/x86/msr.h> @@ -131,3 +132,59 @@ void soc_init_cpus(struct bus *cpu_bus) /* Thermal throttle activation offset */ configure_tcc_thermal_target(); } + +enum adl_cpu_type get_adl_cpu_type(void) +{ + const uint16_t adl_m_mch_ids[] = { + PCI_DEVICE_ID_INTEL_ADL_M_ID_1, + PCI_DEVICE_ID_INTEL_ADL_M_ID_2, + }; + const uint16_t adl_p_mch_ids[] = { + PCI_DEVICE_ID_INTEL_ADL_P_ID_1, + PCI_DEVICE_ID_INTEL_ADL_P_ID_3, + PCI_DEVICE_ID_INTEL_ADL_P_ID_4, + PCI_DEVICE_ID_INTEL_ADL_P_ID_5, + PCI_DEVICE_ID_INTEL_ADL_P_ID_6, + PCI_DEVICE_ID_INTEL_ADL_P_ID_7, + PCI_DEVICE_ID_INTEL_ADL_P_ID_8, + PCI_DEVICE_ID_INTEL_ADL_P_ID_9, + }; + const uint16_t adl_s_mch_ids[] = { + PCI_DEVICE_ID_INTEL_ADL_S_ID_1, + PCI_DEVICE_ID_INTEL_ADL_S_ID_2, + PCI_DEVICE_ID_INTEL_ADL_S_ID_3, + PCI_DEVICE_ID_INTEL_ADL_S_ID_4, + PCI_DEVICE_ID_INTEL_ADL_S_ID_5, + PCI_DEVICE_ID_INTEL_ADL_S_ID_6, + PCI_DEVICE_ID_INTEL_ADL_S_ID_7, + PCI_DEVICE_ID_INTEL_ADL_S_ID_8, + PCI_DEVICE_ID_INTEL_ADL_S_ID_9, + PCI_DEVICE_ID_INTEL_ADL_S_ID_10, + PCI_DEVICE_ID_INTEL_ADL_S_ID_11, + PCI_DEVICE_ID_INTEL_ADL_S_ID_12, + PCI_DEVICE_ID_INTEL_ADL_S_ID_13, + PCI_DEVICE_ID_INTEL_ADL_S_ID_14, + PCI_DEVICE_ID_INTEL_ADL_S_ID_15, + }; + + const uint16_t mchid = pci_s_read_config16(PCI_DEV(0, PCI_SLOT(SA_DEVFN_ROOT), + PCI_FUNC(SA_DEVFN_ROOT)), + PCI_DEVICE_ID); + + for (size_t i = 0; i < ARRAY_SIZE(adl_p_mch_ids); i++) { + if (adl_p_mch_ids[i] == mchid) + return ADL_P; + } + + for (size_t i = 0; i < ARRAY_SIZE(adl_m_mch_ids); i++) { + if (adl_m_mch_ids[i] == mchid) + return ADL_M; + } + + for (size_t i = 0; i < ARRAY_SIZE(adl_s_mch_ids); i++) { + if (adl_s_mch_ids[i] == mchid) + return ADL_S; + } + + return ADL_UNKNOWN; +} diff --git a/src/soc/intel/alderlake/include/soc/cpu.h b/src/soc/intel/alderlake/include/soc/cpu.h index 71c2f47605..b25979d261 100644 --- a/src/soc/intel/alderlake/include/soc/cpu.h +++ b/src/soc/intel/alderlake/include/soc/cpu.h @@ -19,4 +19,13 @@ #define C9_POWER 0xc8 #define C10_POWER 0xc8 +enum adl_cpu_type { + ADL_UNKNOWN, + ADL_M, + ADL_P, + ADL_S, +}; + +enum adl_cpu_type get_adl_cpu_type(void); + #endif |