diff options
| author | Usha P <usha.p@intel.com> | 2021-12-02 14:18:10 +0530 |
|---|---|---|
| committer | Patrick Georgi <patrick@coreboot.org> | 2021-12-06 12:39:47 +0000 |
| commit | 93f50b35a4f89e0c514d29f27674ffedca46c08a (patch) | |
| tree | 3fdf59ab33c50f12f283c445aa8e7931f6de18e9 /src/soc/intel/alderlake | |
| parent | dc35d2a693ade7e2afa8fa55c21eb61e17078017 (diff) | |
soc/intel/alderlake: Add support for ADL-N CPU Type
Add Alder Lake-N case for adl_cpu_type and get_supported_lpm_mask.
Signed-off-by: Usha P <usha.p@intel.com>
Change-Id: If2917ac356fd80f84bcaf70ed710d329e77f7a6d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59836
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Diffstat (limited to 'src/soc/intel/alderlake')
| -rw-r--r-- | src/soc/intel/alderlake/cpu.c | 11 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/include/soc/cpu.h | 1 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/cpu.c b/src/soc/intel/alderlake/cpu.c index 94658c7acb..be115274c2 100644 --- a/src/soc/intel/alderlake/cpu.c +++ b/src/soc/intel/alderlake/cpu.c @@ -168,6 +168,11 @@ enum adl_cpu_type get_adl_cpu_type(void) PCI_DEVICE_ID_INTEL_ADL_S_ID_15, }; + const uint16_t adl_n_mch_ids[] = { + PCI_DEVICE_ID_INTEL_ADL_N_ID_1, + PCI_DEVICE_ID_INTEL_ADL_N_ID_2, + }; + const uint16_t mchid = pci_s_read_config16(PCI_DEV(0, PCI_SLOT(SA_DEVFN_ROOT), PCI_FUNC(SA_DEVFN_ROOT)), PCI_DEVICE_ID); @@ -187,6 +192,11 @@ enum adl_cpu_type get_adl_cpu_type(void) return ADL_S; } + for (size_t i = 0; i < ARRAY_SIZE(adl_n_mch_ids); i++) { + if (adl_n_mch_ids[i] == mchid) + return ADL_N; + } + return ADL_UNKNOWN; } @@ -195,6 +205,7 @@ uint8_t get_supported_lpm_mask(void) enum adl_cpu_type type = get_adl_cpu_type(); switch (type) { case ADL_M: /* fallthrough */ + case ADL_N: case ADL_P: return LPM_S0i2_0 | LPM_S0i3_0; case ADL_S: diff --git a/src/soc/intel/alderlake/include/soc/cpu.h b/src/soc/intel/alderlake/include/soc/cpu.h index 233e0c2bd2..cd6f34f663 100644 --- a/src/soc/intel/alderlake/include/soc/cpu.h +++ b/src/soc/intel/alderlake/include/soc/cpu.h @@ -22,6 +22,7 @@ enum adl_cpu_type { ADL_UNKNOWN, ADL_M, + ADL_N, ADL_P, ADL_S, }; |