mb/google/volteer/var/trondo: Add memory parts and generate DRAM IDs

Add memory parts and generate DRAM IDs for trondo.

BUG=None
TEST=FW_NAME=trondo emerge-volteer coreboot chromeos-bootimage

Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: I2e89ecaf73a30595ed48ac9ce94ccbd4bb7ed3c2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45164
Reviewed-by: Michael Niewöhner
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/volteer/variants/trondo/Makefile.inc

@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
-SPD_SOURCES =
-
 bootblock-y += gpio.c
 
 ramstage-y += gpio.c

src/mainboard/google/volteer/variants/trondo/memory/Makefile.inc

@@ -0,0 +1,7 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+## This is an auto-generated file. Do not edit!!
+
+SPD_SOURCES =
+SPD_SOURCES += lp4x-spd-1.hex      # ID = 0(0b0000)  Parts = MT53E512M32D2NP-046 WT:E, H9HCNNNBKMMLXR-NEE, K4U6E3S4AA-MGCR
+SPD_SOURCES += lp4x-spd-4.hex      # ID = 1(0b0001)  Parts = MT53E1G32D2NP-046 WT:A
+SPD_SOURCES += lp4x-spd-3.hex      # ID = 2(0b0010)  Parts = H9HCNNNCPMMLXR-NEE, K4UBE3D4AA-MGCR

src/mainboard/google/volteer/variants/trondo/memory/dram_id.generated.txt

@@ -0,0 +1,7 @@
+DRAM Part Name                 ID to assign
+MT53E512M32D2NP-046 WT:E       0 (0000)
+H9HCNNNBKMMLXR-NEE             0 (0000)
+K4U6E3S4AA-MGCR                0 (0000)
+MT53E1G32D2NP-046 WT:A         1 (0001)
+H9HCNNNCPMMLXR-NEE             2 (0010)
+K4UBE3D4AA-MGCR                2 (0010)

src/mainboard/google/volteer/variants/trondo/memory/mem_list_variant.txt

@@ -0,0 +1,6 @@
+MT53E512M32D2NP-046 WT:E
+H9HCNNNBKMMLXR-NEE
+K4U6E3S4AA-MGCR
+MT53E1G32D2NP-046 WT:A
+H9HCNNNCPMMLXR-NEE
+K4UBE3D4AA-MGCR