linux-kernel - [PATCH 1/2] arm64: dts: ti: am62-phycore-som: Increase cpu frequency to 1.4 GHz

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240913175625.3190757-2-ggiordano@phytec.com>
Date: Fri, 13 Sep 2024 10:56:24 -0700
From: Garrett Giordano <ggiordano@...tec.com>
To: nm@...com,
	vigneshr@...com,
	kristo@...nel.org,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	w.egorov@...tec.de
Cc: linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	upstream@...ts.phytec.de
Subject: [PATCH 1/2] arm64: dts: ti: am62-phycore-som: Increase cpu frequency to 1.4 GHz

The am625 is capable of running at 1.4 GHz when VDD_CORE is increased
from 0.75V to 0.85V. Here we add a 1.4 GHz node to the a53_opp_table and
increase the VDD_CORE voltage accordingly.

Signed-off-by: Garrett Giordano <ggiordano@...tec.com>
---
 arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
index ac8959f3d953..8acbd4facf37 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
@@ -205,6 +205,13 @@ AM62X_IOPAD(0x01f4, PIN_INPUT, 0) /* (D16) EXTINTn */
 	};
 };
 
+&a53_opp_table {
+	opp-1400000000 {
+		opp-hz = /bits/ 64 <1400000000>;
+		opp-supported-hw = <0x01 0x0004>;
+	};
+};
+
 &mcu_m4fss {
 	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
 	memory-region = <&mcu_m4fss_dma_memory_region>,
@@ -265,8 +272,8 @@ pmic@30 {
 		regulators {
 			vdd_core: buck1 {
 				regulator-name = "VDD_CORE";
-				regulator-min-microvolt = <750000>;
-				regulator-max-microvolt = <750000>;
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
 				regulator-boot-on;
 				regulator-always-on;
 			};
-- 
2.25.1