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 1/2] arm64: dts: ti: k3-am62a: add opp frequencies
Date: Fri, 9 Aug 2024 17:01:13 -0500 [thread overview]
Message-ID: <20240809-opp-v1-1-fea8efeaf963@ti.com> (raw)
In-Reply-To: <20240809-opp-v1-0-fea8efeaf963@ti.com>
Add OPP table for the am62ax-sk allowing us to slow down CPUs when idle
Signed-off-by: Bryan Brattlof <bb@ti.com>
---
arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi | 5 +++
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 9 +++++
arch/arm64/boot/dts/ti/k3-am62a7.dtsi | 51 +++++++++++++++++++++++++++++
3 files changed, 65 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
index f5ac101a04dfa..0b1dd5390cd3f 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
@@ -17,6 +17,11 @@ chipid: chipid@14 {
reg = <0x14 0x4>;
};
+ 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-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 67faf46d7a35a..a6f0d87a50d8a 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -68,6 +68,15 @@ wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 {
};
};
+ opp-table {
+ /* Requires VDD_CORE at 0v85 */
+ opp-1400000000 {
+ opp-hz = /bits/ 64 <1400000000>;
+ opp-supported-hw = <0x01 0x0004>;
+ clock-latency-ns = <6000000>;
+ };
+ };
+
vmain_pd: regulator-0 {
/* TPS25750 PD CONTROLLER OUTPUT */
compatible = "regulator-fixed";
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi b/arch/arm64/boot/dts/ti/k3-am62a7.dtsi
index f86a23404e6dd..6c99221beb6bd 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a7.dtsi
@@ -48,6 +48,8 @@ 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>;
};
cpu1: cpu@1 {
@@ -62,6 +64,8 @@ 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>;
};
cpu2: cpu@2 {
@@ -76,6 +80,8 @@ 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>;
};
cpu3: cpu@3 {
@@ -90,6 +96,51 @@ 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;
};
};
--
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 ` Bryan Brattlof [this message]
2024-08-09 22:01 ` [PATCH 2/2] arm64: dts: ti: k3-am62p: " Bryan Brattlof
2024-08-12 11:41 ` Nishanth Menon
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