From: Bryan Brattlof <bb@ti.com>
To: Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
Tero Kristo <kristo@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Bryan Brattlof <bb@ti.com>
Subject: [PATCH 2/2] arm64: dts: ti: k3-am62p: add opp frequencies
Date: Fri, 9 Aug 2024 17:01:14 -0500 [thread overview]
Message-ID: <20240809-opp-v1-2-fea8efeaf963@ti.com> (raw)
In-Reply-To: <20240809-opp-v1-0-fea8efeaf963@ti.com>
Add OPP table for the am62px-sk allowing us to slow down CPUs when idle
Signed-off-by: Bryan Brattlof <bb@ti.com>
---
.../boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi | 5 +++
arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 9 +++++
arch/arm64/boot/dts/ti/k3-am62p5.dtsi | 47 ++++++++++++++++++++++
3 files changed, 61 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
index 315d0092e7366..6f32135f00a55 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
@@ -20,6 +20,11 @@ chipid: chipid@14 {
bootph-all;
};
+ opp_efuse_table: syscon@18 {
+ compatible = "ti,am62-opp-efuse-table", "syscon";
+ reg = <0x18 0x4>;
+ };
+
cpsw_mac_syscon: ethernet-mac-syscon@200 {
compatible = "ti,am62p-cpsw-mac-efuse", "syscon";
reg = <0x200 0x8>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index ff65955551a32..ab5d7a5fc6118 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -128,6 +128,15 @@ led-0 {
};
};
+ opp-table {
+ /* Requires VDD_CORE at 0v85 */
+ opp-1400000000 {
+ opp-hz = /bits/ 64 <1400000000>;
+ opp-supported-hw = <0x01 0x0004>;
+ clock-latency-ns = <6000000>;
+ };
+ };
+
tlv320_mclk: clk-0 {
#clock-cells = <0>;
compatible = "fixed-clock";
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5.dtsi b/arch/arm64/boot/dts/ti/k3-am62p5.dtsi
index 41f479dca4555..140587d02e88e 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p5.dtsi
@@ -47,6 +47,7 @@ cpu0: cpu@0 {
d-cache-line-size = <64>;
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
+ operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 135 0>;
};
@@ -62,6 +63,7 @@ cpu1: cpu@1 {
d-cache-line-size = <64>;
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
+ operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 136 0>;
};
@@ -77,6 +79,7 @@ cpu2: cpu@2 {
d-cache-line-size = <64>;
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
+ operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 137 0>;
};
@@ -92,10 +95,54 @@ cpu3: cpu@3 {
d-cache-line-size = <64>;
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
+ operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 138 0>;
};
};
+ a53_opp_table: opp-table {
+ compatible = "operating-points-v2-ti-cpu";
+ opp-shared;
+ syscon = <&opp_efuse_table>;
+
+ opp-200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ opp-supported-hw = <0x01 0x0007>;
+ clock-latency-ns = <6000000>;
+ };
+
+ opp-400000000 {
+ opp-hz = /bits/ 64 <400000000>;
+ opp-supported-hw = <0x01 0x0007>;
+ clock-latency-ns = <6000000>;
+ };
+
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-supported-hw = <0x01 0x0007>;
+ clock-latency-ns = <6000000>;
+ };
+
+ opp-800000000 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-supported-hw = <0x01 0x0007>;
+ clock-latency-ns = <6000000>;
+ };
+
+ opp-1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ opp-supported-hw = <0x01 0x0006>;
+ clock-latency-ns = <6000000>;
+ };
+
+ opp-1250000000 {
+ opp-hz = /bits/ 64 <1250000000>;
+ opp-supported-hw = <0x01 0x0004>;
+ clock-latency-ns = <6000000>;
+ opp-suspend;
+ };
+ };
+
l2_0: l2-cache0 {
compatible = "cache";
cache-unified;
--
2.45.2
next prev parent reply other threads:[~2024-08-09 22:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-09 22:01 [PATCH 0/2] arm64: dts: ti: k3-am62{a,p}x-sk: add opp frequencies Bryan Brattlof
2024-08-09 22:01 ` [PATCH 1/2] arm64: dts: ti: k3-am62a: " Bryan Brattlof
2024-08-09 22:01 ` Bryan Brattlof [this message]
2024-08-12 11:41 ` [PATCH 2/2] arm64: dts: ti: k3-am62p: " Nishanth Menon
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