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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 v2 4/4] arm64: dts: ti: k3-am62p5-sk: add 1.4ghz opp entry
Date: Fri, 23 Aug 2024 16:54:31 -0500	[thread overview]
Message-ID: <20240823-opp-v2-4-e2f67b37c299@ti.com> (raw)
In-Reply-To: <20240823-opp-v2-0-e2f67b37c299@ti.com>

The AM62Px reference board is capable of supplying 0v85 to the VDD_CORE
which allows the Cortex-A53s to operate at 1.4GHz according to chapter
6.6 of the SoC's data sheet[0] . Append the 1.4Ghz entry to the OPP
table to enable this frequency

[0] https://www.ti.com/lit/ds/symlink/am62p-q1.pdf

Signed-off-by: Bryan Brattlof <bb@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

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";

-- 
2.45.2


      parent reply	other threads:[~2024-08-23 21:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-23 21:54 [PATCH v2 0/4] arm64: dts: ti: k3-am62{a,p}x-sk: add opp frequencies Bryan Brattlof
2024-08-23 21:54 ` [PATCH v2 1/4] arm64: dts: ti: k3-am62a: " Bryan Brattlof
2024-08-23 21:54 ` [PATCH v2 2/4] arm64: dts: ti: k3-am62a7-sk: add 1.4ghz opp entry Bryan Brattlof
2024-08-23 21:54 ` [PATCH v2 3/4] arm64: dts: ti: k3-am62p: add opp frequencies Bryan Brattlof
2024-08-26 13:23   ` Dhruva Gole
2024-08-26 16:11     ` Bryan Brattlof
2024-08-27  4:25       ` Vignesh Raghavendra
2024-08-23 21:54 ` Bryan Brattlof [this message]

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