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6c4d636bc0
Amlogic G12B devices experience CPU stalls and random board wedges when
the system idles and CPU cores clock down to lower opp points. Recent
vendor kernels include a change to remove 100-250MHz and other distro
sources also remove the 500/667MHz points. Unless all 100-667Mhz opps
are removed or the CPU governor forced to performance stalls are still
observed, so let's remove them to improve stability and uptime.
Fixes: b96d4e9270 ("arm64: dts: meson-g12b: support a311d and s922x cpu operating points")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220210100638.19130-2-christianshewitt@gmail.com
100 lines
1.8 KiB
Plaintext
100 lines
1.8 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2019 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*/
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#include "meson-g12b.dtsi"
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/ {
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cpu_opp_table_0: opp-table-0 {
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compatible = "operating-points-v2";
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opp-shared;
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opp-1000000000 {
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opp-hz = /bits/ 64 <1000000000>;
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opp-microvolt = <731000>;
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};
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opp-1200000000 {
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opp-hz = /bits/ 64 <1200000000>;
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opp-microvolt = <731000>;
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};
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opp-1398000000 {
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opp-hz = /bits/ 64 <1398000000>;
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opp-microvolt = <761000>;
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};
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opp-1512000000 {
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opp-hz = /bits/ 64 <1512000000>;
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opp-microvolt = <791000>;
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};
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opp-1608000000 {
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opp-hz = /bits/ 64 <1608000000>;
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opp-microvolt = <831000>;
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};
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opp-1704000000 {
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opp-hz = /bits/ 64 <1704000000>;
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opp-microvolt = <861000>;
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};
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opp-1896000000 {
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opp-hz = /bits/ 64 <1896000000>;
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opp-microvolt = <981000>;
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};
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opp-1992000000 {
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opp-hz = /bits/ 64 <1992000000>;
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opp-microvolt = <1001000>;
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};
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};
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cpub_opp_table_1: opp-table-1 {
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compatible = "operating-points-v2";
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opp-shared;
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opp-1000000000 {
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opp-hz = /bits/ 64 <1000000000>;
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opp-microvolt = <771000>;
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};
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opp-1200000000 {
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opp-hz = /bits/ 64 <1200000000>;
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opp-microvolt = <771000>;
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};
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opp-1398000000 {
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opp-hz = /bits/ 64 <1398000000>;
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opp-microvolt = <791000>;
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};
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opp-1512000000 {
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opp-hz = /bits/ 64 <1512000000>;
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opp-microvolt = <821000>;
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};
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opp-1608000000 {
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opp-hz = /bits/ 64 <1608000000>;
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opp-microvolt = <861000>;
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};
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opp-1704000000 {
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opp-hz = /bits/ 64 <1704000000>;
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opp-microvolt = <891000>;
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};
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opp-1800000000 {
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opp-hz = /bits/ 64 <1800000000>;
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opp-microvolt = <981000>;
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};
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opp-1908000000 {
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opp-hz = /bits/ 64 <1908000000>;
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opp-microvolt = <1022000>;
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};
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};
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};
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