lib: Add new argument as `ddr_type` to smbios_bus_width_to_spd_width()

Add DDR5 and LPDDR5 memory type checks while calculating bus width
extension (in bits).

Additionally, update all caller functions of
smbios_bus_width_to_spd_width() to pass `MemoryType` as argument.

Update `test_smbios_bus_width_to_spd_width()` to accommodate
different memory types.

Create new macro to fix incorrect bus width reporting
on platform with DDR5 and LPDDR5 memory.

With this code changes, on DDR5 system with 2 Ch per DIMM, 32 bit
primary bus width per Ch showed the Total width as:

Handle 0x000F, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x0009
	Error Information Handle: Not Provided
	Total Width: 80 bits
	Data Width: 64 bits
	Size: 16 GB
	...

BUG=b:194659789
Tested=On Alder Lake DDR5 RVP, SMBIOS type 17 shows expected `Total Width`.

Change-Id: I79ec64c9d522a34cb44b3f575725571823048380
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58601
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/soc/amd/common/fsp/dmi.c b/src/soc/amd/common/fsp/dmi.c
index 61d43f7aae11..223cce15773c 100644
--- a/src/soc/amd/common/fsp/dmi.c
+++ b/src/soc/amd/common/fsp/dmi.c
@@ -54,8 +54,8 @@ static void transfer_memory_info(const TYPE17_DMI_INFO *dmi17,
 
 	dimm->mod_type = smbios_form_factor_to_spd_mod_type(dmi17->FormFactor);
 
-	dimm->bus_width =
-	    smbios_bus_width_to_spd_width(dmi17->TotalWidth, dmi17->DataWidth);
+	dimm->bus_width = smbios_bus_width_to_spd_width(dmi17->MemoryType, dmi17->TotalWidth,
+						dmi17->DataWidth);
 
 	dimm->mod_id = dmi17->ManufacturerIdCode;