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https://github.com/Ysurac/openmptcprouter.git
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69 lines
2 KiB
Diff
69 lines
2 KiB
Diff
From 4f279f9fbca54464173240f7e73b145a136dfa1e Mon Sep 17 00:00:00 2001
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From: Robin Murphy <robin.murphy@arm.com>
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Date: Sun, 29 Dec 2019 20:16:17 +0000
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Subject: arm64: dts: rockchip: Add RK3328 idle state
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Downstream RK3328 DTBs describe a CPU idle state matching that present
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on other SoCs like RK3399. This works with upstream Trusted Firmware-A
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too, so let's add it here.
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Signed-off-by: Robin Murphy <robin.murphy@arm.com>
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Link: https://lore.kernel.org/r/a8c83e705d387446ea8121516d410e38b2d9c57b.1577640736.git.robin.murphy@arm.com
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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arch/arm64/boot/dts/rockchip/rk3328.dtsi | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
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+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
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@@ -41,6 +41,7 @@
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reg = <0x0 0x0>;
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clocks = <&cru ARMCLK>;
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#cooling-cells = <2>;
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+ cpu-idle-states = <&CPU_SLEEP>;
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dynamic-power-coefficient = <120>;
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enable-method = "psci";
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next-level-cache = <&l2>;
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@@ -53,6 +54,7 @@
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reg = <0x0 0x1>;
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clocks = <&cru ARMCLK>;
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#cooling-cells = <2>;
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+ cpu-idle-states = <&CPU_SLEEP>;
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dynamic-power-coefficient = <120>;
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enable-method = "psci";
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next-level-cache = <&l2>;
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@@ -65,6 +67,7 @@
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reg = <0x0 0x2>;
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clocks = <&cru ARMCLK>;
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#cooling-cells = <2>;
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+ cpu-idle-states = <&CPU_SLEEP>;
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dynamic-power-coefficient = <120>;
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enable-method = "psci";
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next-level-cache = <&l2>;
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@@ -77,12 +80,26 @@
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reg = <0x0 0x3>;
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clocks = <&cru ARMCLK>;
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#cooling-cells = <2>;
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+ cpu-idle-states = <&CPU_SLEEP>;
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dynamic-power-coefficient = <120>;
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enable-method = "psci";
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next-level-cache = <&l2>;
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operating-points-v2 = <&cpu0_opp_table>;
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};
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+ idle-states {
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+ entry-method = "psci";
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+
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+ CPU_SLEEP: cpu-sleep {
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+ compatible = "arm,idle-state";
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+ local-timer-stop;
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+ arm,psci-suspend-param = <0x0010000>;
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+ entry-latency-us = <120>;
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+ exit-latency-us = <250>;
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+ min-residency-us = <900>;
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+ };
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+ };
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+
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l2: l2-cache0 {
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compatible = "cache";
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};
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