diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/meteorlake/chip.h | 10 | ||||
| -rw-r--r-- | src/soc/intel/meteorlake/romstage/fsp_params.c | 12 |
2 files changed, 22 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/chip.h b/src/soc/intel/meteorlake/chip.h index f63d977d9e..9d4ff79c61 100644 --- a/src/soc/intel/meteorlake/chip.h +++ b/src/soc/intel/meteorlake/chip.h @@ -139,6 +139,16 @@ struct soc_intel_meteorlake_config { SAGV_ENABLED, } sagv; + /* System Agent dynamic frequency work points that memory will be training + * at the enabled frequencies. Possible work points are: + * 0x3:Points0_1, 0x7:Points0_1_2, 0xF:AllPoints0_1_2_3 + */ + enum { + SAGV_POINTS_0_1 = 0x03, + SAGV_POINTS_0_1_2 = 0x07, + SAGV_POINTS_0_1_2_3 = 0x0f, + } sagv_wp_bitmap; + /* Rank Margin Tool. 1:Enable, 0:Disable */ uint8_t rmt; diff --git a/src/soc/intel/meteorlake/romstage/fsp_params.c b/src/soc/intel/meteorlake/romstage/fsp_params.c index ec5a3af4bb..38bd443b8f 100644 --- a/src/soc/intel/meteorlake/romstage/fsp_params.c +++ b/src/soc/intel/meteorlake/romstage/fsp_params.c @@ -124,6 +124,18 @@ static void fill_fspm_mrc_params(FSP_M_CONFIG *m_cfg, const struct soc_intel_meteorlake_config *config) { m_cfg->SaGv = config->sagv; + if (m_cfg->SaGv) { + /* + * Set SaGv work points after reviewing the power and performance impact + * with SaGv set to 1 (Enabled) and various work points between 0-3 being + * enabled. + */ + if (config->sagv_wp_bitmap) + m_cfg->SaGvWpMask = config->sagv_wp_bitmap; + else + m_cfg->SaGvWpMask = SAGV_POINTS_0_1_2_3; + } + m_cfg->RMT = config->rmt; /* Enable MRC Fast Boot */ m_cfg->MrcFastBoot = 1; |