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From: Vibhore Vardhan <vibhore@ti.com>
To: <nm@ti.com>, <vigneshr@ti.com>, <kristo@kernel.org>,
	<robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
	<rafael@kernel.org>, <viresh.kumar@linaro.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-pm@vger.kernel.org>
Subject: [PATCH RESEND 5/5] arm64: dts: ti: k3-am625-sk: Add 1.4GHz OPP
Date: Tue, 1 Nov 2022 13:09:35 -0500	[thread overview]
Message-ID: <20221101180935.139268-6-vibhore@ti.com> (raw)
In-Reply-To: <20221101180935.139268-1-vibhore@ti.com>

The 1.4 GHz OPP requires supported silicon variant (T speed grade) and
also VDD_CORE to be at 0.85V.  All production revisions of the AM625-SK
have both so we can enable the 1.4 GHz OPP for it.  Any other boards
based on this design should verify that they have the right silicon
variant and the right power tree before adding 1.4 GHz support in their
board dts file.

Signed-off-by: Vibhore Vardhan <vibhore@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am625-sk.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
index 93a5f0817efc..4620ef5e19bb 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -31,6 +31,15 @@ chosen {
 		bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
 	};
 
+	opp-table {
+		/* Add 1.4GHz OPP for am625-sk board. Requires VDD_CORE to be at 0.85V */
+		opp-1400000000 {
+			opp-hz = /bits/ 64 <1400000000>;
+			opp-supported-hw = <0x01 0x0004>;
+			clock-latency-ns = <6000000>;
+		};
+	};
+
 	memory@80000000 {
 		device_type = "memory";
 		/* 2G RAM */
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Vibhore Vardhan <vibhore@ti.com>
To: <nm@ti.com>, <vigneshr@ti.com>, <kristo@kernel.org>,
	<robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
	<rafael@kernel.org>, <viresh.kumar@linaro.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-pm@vger.kernel.org>
Subject: [PATCH RESEND 5/5] arm64: dts: ti: k3-am625-sk: Add 1.4GHz OPP
Date: Tue, 1 Nov 2022 13:09:35 -0500	[thread overview]
Message-ID: <20221101180935.139268-6-vibhore@ti.com> (raw)
In-Reply-To: <20221101180935.139268-1-vibhore@ti.com>

The 1.4 GHz OPP requires supported silicon variant (T speed grade) and
also VDD_CORE to be at 0.85V.  All production revisions of the AM625-SK
have both so we can enable the 1.4 GHz OPP for it.  Any other boards
based on this design should verify that they have the right silicon
variant and the right power tree before adding 1.4 GHz support in their
board dts file.

Signed-off-by: Vibhore Vardhan <vibhore@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am625-sk.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
index 93a5f0817efc..4620ef5e19bb 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -31,6 +31,15 @@ chosen {
 		bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
 	};
 
+	opp-table {
+		/* Add 1.4GHz OPP for am625-sk board. Requires VDD_CORE to be at 0.85V */
+		opp-1400000000 {
+			opp-hz = /bits/ 64 <1400000000>;
+			opp-supported-hw = <0x01 0x0004>;
+			clock-latency-ns = <6000000>;
+		};
+	};
+
 	memory@80000000 {
 		device_type = "memory";
 		/* 2G RAM */
-- 
2.34.1


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  parent reply	other threads:[~2022-11-01 18:10 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-01 18:09 [PATCH RESEND 0/5] cpufreq: ti-cpufreq: Enable AM625 CPUFreq Vibhore Vardhan
2022-11-01 18:09 ` Vibhore Vardhan
2022-11-01 18:09 ` [PATCH RESEND 1/5] cpufreq: ti-cpufreq: Add support for AM625 Vibhore Vardhan
2022-11-01 18:09   ` Vibhore Vardhan
2022-11-01 18:09 ` [PATCH RESEND 2/5] cpufreq: dt-platdev: Blacklist ti,am625 SoC Vibhore Vardhan
2022-11-01 18:09   ` Vibhore Vardhan
2022-11-01 18:09 ` [PATCH RESEND 3/5] arm64: dts: ti: k3-am625: Introduce operating-points table Vibhore Vardhan
2022-11-01 18:09   ` Vibhore Vardhan
2022-11-01 18:09 ` [PATCH RESEND 4/5] cpufreq: ti: Enable ti-cpufreq for ARCH_K3 Vibhore Vardhan
2022-11-01 18:09   ` Vibhore Vardhan
2022-11-01 18:09 ` Vibhore Vardhan [this message]
2022-11-01 18:09   ` [PATCH RESEND 5/5] arm64: dts: ti: k3-am625-sk: Add 1.4GHz OPP Vibhore Vardhan
2022-11-07 10:02 ` [PATCH RESEND 0/5] cpufreq: ti-cpufreq: Enable AM625 CPUFreq Viresh Kumar
2022-11-07 10:02   ` Viresh Kumar

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