mb/system76/rpl: Allow 5600 MT/s memory for RPL-HX
System76 only sells units with memory speeds up to 5200 MT/s, but the
i9-13900HX supports up to 5600 MT/s memory.
Tested by running memtest and checking dmidecode reports 5600 MT/s when
using 2x16 GB 5600 MT/s Crucial SODIMMs (CT2K16G56C46S5) on addw3,
bonw15, serw13.
Change-Id: I9bb0435769c70c1db06d2c5cca2dd28eb5331f49
Signed-off-by: Matt Parnell <mparnell@gmail.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Tested-by: Levi Portenier <levi@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78912
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/system76/rpl/variants/addw3/overridetree.cb b/src/mainboard/system76/rpl/variants/addw3/overridetree.cb
index 292673a..9b8d453 100644
--- a/src/mainboard/system76/rpl/variants/addw3/overridetree.cb
+++ b/src/mainboard/system76/rpl/variants/addw3/overridetree.cb
@@ -1,6 +1,6 @@
chip soc/intel/alderlake
- # Support 5200 MT/s memory
- register "max_dram_speed_mts" = "5200"
+ # Support 5600 MT/s memory
+ register "max_dram_speed_mts" = "5600"
device domain 0 on
subsystemid 0x1558 0xa671 inherit
diff --git a/src/mainboard/system76/rpl/variants/bonw15/overridetree.cb b/src/mainboard/system76/rpl/variants/bonw15/overridetree.cb
index 189d306..fde40f6 100644
--- a/src/mainboard/system76/rpl/variants/bonw15/overridetree.cb
+++ b/src/mainboard/system76/rpl/variants/bonw15/overridetree.cb
@@ -1,6 +1,6 @@
chip soc/intel/alderlake
- # Support 5200 MT/s memory
- register "max_dram_speed_mts" = "5200"
+ # Support 5600 MT/s memory
+ register "max_dram_speed_mts" = "5600"
device domain 0 on
subsystemid 0x1558 0x3702 inherit
diff --git a/src/mainboard/system76/rpl/variants/serw13/overridetree.cb b/src/mainboard/system76/rpl/variants/serw13/overridetree.cb
index 7ae1550..b261d59 100644
--- a/src/mainboard/system76/rpl/variants/serw13/overridetree.cb
+++ b/src/mainboard/system76/rpl/variants/serw13/overridetree.cb
@@ -1,6 +1,6 @@
chip soc/intel/alderlake
- # Support 5200 MT/s memory
- register "max_dram_speed_mts" = "5200"
+ # Support 5600 MT/s memory
+ register "max_dram_speed_mts" = "5600"
device domain 0 on
subsystemid 0x1558 0xd502 inherit