From b132bf5a87784a8a57677f43607095330be9f3a1 Mon Sep 17 00:00:00 2001 From: Rob Barnes Date: Tue, 1 Sep 2020 10:28:36 -0600 Subject: soc/amd/picasso: Set max_speed_mts and configured_speed_mts ddr_frequency is deprecated. Set max_speed_mts and configured_speed_mts instead. This will result in SMBIOS type 17 displaying more accurate speed information. BUG=b:167218112 TEST=Boot ezkinil and observe dmidecode -t17 dmidecode -t17 # dmidecode 3.2 Getting SMBIOS data from sysfs. SMBIOS 3.0 present. Handle 0x000B, DMI type 17, 40 bytes Memory Device Array Handle: 0x000A Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 4096 MB Form Factor: SODIMM Set: None Locator: Channel-0-DIMM-0 Bank Locator: BANK 0 Type: DDR4 Type Detail: Synchronous Speed: 3200 MT/s Manufacturer: Unknown (0) Serial Number: 00000000 Asset Tag: Not Specified Part Number: MT40A512M16TB-062E:J Rank: 1 Configured Memory Speed: 2400 MT/s Minimum Voltage: Unknown Maximum Voltage: Unknown Configured Voltage: Unknown Signed-off-by: Rob Barnes Change-Id: I1879676ea9436b6d19c768f1b78487a4e179f8d6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/44984 Reviewed-by: Tim Wawrzynczak Reviewed-by: Furquan Shaikh Reviewed-by: Raul Rangel Tested-by: build bot (Jenkins) --- src/soc/amd/picasso/dmi.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/src/soc/amd/picasso/dmi.c b/src/soc/amd/picasso/dmi.c index 3988616896..5189cd6ac4 100644 --- a/src/soc/amd/picasso/dmi.c +++ b/src/soc/amd/picasso/dmi.c @@ -28,14 +28,12 @@ static void transfer_memory_info(const TYPE17_DMI_INFO *dmi17, dimm->ddr_type = dmi17->MemoryType; /** - * Based on the name, ddr_frequency should hold the memory clock - * frequency in MHz. However it is interpreted as MT/s in SMBIOS - * downstream. So multiply by 2 to translate to memory speed in MT/s. - * ddr_frequency is used for setting both config speed and max - * speed. Using config speed so we don't get the false impression - * that the RAM is running faster than it actually is. + * TYPE17_DMI_INFO holds speed in MHz. + * Change to MT/s by multiplying by 2. */ - dimm->ddr_frequency = 2 * dmi17->ConfigSpeed; + dimm->configured_speed_mts = 2 * dmi17->ConfigSpeed; + + dimm->max_speed_mts = 2 * dmi17->Speed; dimm->rank_per_dimm = dmi17->Attributes; -- cgit v1.2.3