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AJvYcCUKXSTlPgX6DI/Bc004D616CadolumFazwLOML7NlJOpXpLvChdxn62yOkZ31O6bt7/iCqACrIC33+5xE2dNGSQBoxZ4a6rzyT1LEtf X-Gm-Message-State: AOJu0YyCBmOOLI1PIw/k0vpKEeXF67KE6u7JbmrYca5f6A0rFGIsEL56 WhotTkAxDTnlKHZ1Vr0tb+oUKbO8LgfjhKVH8frReu4x4GtOJVGw X-Received: by 2002:a17:90a:d304:b0:2bd:6552:6474 with SMTP id 98e67ed59e1d1-2c1dc5cd763mr6548807a91.41.1717378091176; Sun, 02 Jun 2024 18:28:11 -0700 (PDT) Received: from desky.home.arpa ([2605:59c8:790:a500:5d50:7307:99f3:76c8]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2c1a77bb855sm6725047a91.52.2024.06.02.18.28.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 02 Jun 2024 18:28:10 -0700 (PDT) From: Benjamin Schneider X-Google-Original-From: Benjamin Schneider To: Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] cpufreq: enable 1200Mhz clock speed for armada-37xx Date: Sun, 2 Jun 2024 18:26:37 -0700 Message-ID: <20240603012804.122215-1-ben@bens.haus> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi, I've been running two Marvell A3720 devices with CPU frequency scaling enabled and 1.2Ghz enabled for several months without issues. In order to do this I had to patch the DDR initialization code in Marvell's repos (https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/pull/44). Without that patch, the device would indeed crash with frequency scaling enabled at any clock speed. This indicates that at least some of the stability issues experienced by users in the past are a result of improperly configured bootloaders rather than an issue with the kernel. As a result, it seems reasonable to re-enable the 1.2Ghz clock speed for users. Ben