diff options
Diffstat (limited to 'src/mainboard/ocp/deltalake')
| -rw-r--r-- | src/mainboard/ocp/deltalake/romstage.c | 16 | ||||
| -rw-r--r-- | src/mainboard/ocp/deltalake/vpd.h | 4 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/mainboard/ocp/deltalake/romstage.c b/src/mainboard/ocp/deltalake/romstage.c index 71a26c8789..f0cdd3dbb7 100644 --- a/src/mainboard/ocp/deltalake/romstage.c +++ b/src/mainboard/ocp/deltalake/romstage.c @@ -59,6 +59,22 @@ static void mainboard_config_upd(FSPM_UPD *mupd) "DciEn to %d\n", FSP_DCI, FSP_DCI_DEFAULT); mupd->FspmConfig.PchDciEn = FSP_DCI_DEFAULT; } + + /* + * UnusedUpdSpace0[0] is reserved for Memory Refresh Watermark. + * Following code is effective when MemRefreshWaterMark patch is added to FSP + * and when corresponding VPD variable is set. + */ + if (vpd_gets(FSPM_MEMREFRESHWATERMARK, val_str, VPD_LEN, VPD_RW_THEN_RO)) { + val = (uint8_t)atol(val_str); + if (val > 2) { + printk(BIOS_DEBUG, "Invalid MemRefreshWatermark value from VPD: " + "%d\n", val); + val = FSPM_MEMREFRESHWATERMARK_DEFAULT; + } + printk(BIOS_DEBUG, "Setting MemRefreshWatermark %d from VPD\n", val); + mupd->FspmConfig.UnusedUpdSpace0[0] = val; + } } /* Update bifurcation settings according to different Configs */ diff --git a/src/mainboard/ocp/deltalake/vpd.h b/src/mainboard/ocp/deltalake/vpd.h index 43070c2a16..71a3b09202 100644 --- a/src/mainboard/ocp/deltalake/vpd.h +++ b/src/mainboard/ocp/deltalake/vpd.h @@ -36,4 +36,8 @@ #define COREBOOT_LOG_LEVEL "coreboot_log_level" #define COREBOOT_LOG_LEVEL_DEFAULT 4 +/* FSPM MemRefreshWatermark: 0:Auto, 1: high(default), 2: low */ +#define FSPM_MEMREFRESHWATERMARK "fspm_mem_refresh_watermark" +#define FSPM_MEMREFRESHWATERMARK_DEFAULT 1 + #endif |