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From 7a00638cea41ad939a59fc0e5996959435fbdb7f Mon Sep 17 00:00:00 2001
From: "D.d.P.F. Lombard" <lombard@lombards.xyz>
Date: Sun, 7 Feb 2021 16:40:05 +0100
Subject: [PATCH 3/6] Tweak cmos defaults for KCMA-D8 (for a little speed
boost)
63xx CPUs have the option to use a reduced latency value inside the crossbar.
Setting "experimental_memory_speed_boost=Enable" aparently only has an effect
on 63xx CPUs and may, in certain cases, yield a slight memory bandwidth
increase (according to Timothy Pearson), but maybe it also works for
43xx CPUs.
Setting "l3_cache_partitioning=Enable" will increase performance in certain
situations. See:
https://developer.arm.com/documentation/100453/0401/functional-description/l3-cache/l3-cache-partitioning?lang=en
---
src/mainboard/asus/kcma-d8/cmos.default | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/mainboard/asus/kcma-d8/cmos.default b/src/mainboard/asus/kcma-d8/cmos.default
index 306687157f..4e033d756f 100644
--- a/src/mainboard/asus/kcma-d8/cmos.default
+++ b/src/mainboard/asus/kcma-d8/cmos.default
@@ -21,9 +21,9 @@ sata_ahci_mode=Enable
sata_alpm=Disable
maximum_p_state_limit=0xf
probe_filter=Auto
-l3_cache_partitioning=Disable
+l3_cache_partitioning=Enable
gart=Enable
ehci_async_data_cache=Enable
-experimental_memory_speed_boost=Disable
+experimental_memory_speed_boost=Enable
power_on_after_fail=On
boot_option=Fallback
--
2.25.1
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