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-next>] [day] [month] [year] [list]
Date: Tue, 13 Feb 2024 16:56:22 +0100
From: Francesco Dolcini <francesco@...cini.it>
To: Nishanth Menon <nm@...com>,
	Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Francesco Dolcini <francesco.dolcini@...adex.com>,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1] arm64: dts: ti: verdin-am62: Set VDD CORE minimum voltage to 0.75V

From: Francesco Dolcini <francesco.dolcini@...adex.com>

Set VDD_CORE minimum voltage to 0.75V, TI AM62 can run at either 0.75V
or 0.85V depending on the actual speed grade and on the maximum
configured speed (1.4GHz frequency requires 0.85V).

The actual value is programmed into the PMIC EEPROM during manufacturing
(according to the SOC speed grade) and this ensure that both the voltage
values are valid and therefore the OS will not overwrite the value
programmed into the PMIC.

Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
---
 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
index 6a06724b6d16..4129566172a2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
@@ -1118,7 +1118,7 @@ reg_vdd_core: buck1 {
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-max-microvolt = <850000>;
-				regulator-min-microvolt = <850000>;
+				regulator-min-microvolt = <750000>;
 				regulator-name = "+VDD_CORE (PMIC BUCK1)";
 			};
 
-- 
2.39.2


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ