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[90.63.244.31]) by smtp.gmail.com with ESMTPSA id o126sm6802520wmo.1.2019.06.20.08.00.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 20 Jun 2019 08:00:34 -0700 (PDT) From: Neil Armstrong To: jbrunet@baylibre.com, khilman@baylibre.com Subject: [RFC/RFT 13/14] arm64: dts: meson-g12b: add cpus OPP tables Date: Thu, 20 Jun 2019 17:00:12 +0200 Message-Id: <20190620150013.13462-14-narmstrong@baylibre.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190620150013.13462-1-narmstrong@baylibre.com> References: <20190620150013.13462-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190620_080036_794732_D4F90679 X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , martin.blumenstingl@googlemail.com, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Add the OPP table taken from the HardKernel Odroid-N2 DTS. The Amlogic G12B SoC seems to available in 2 types : - low-speed: Cortex-A73 Cluster up to 1,704GHz - high-speed: Cortex-A73 Cluster up to 2.208GHz The Cortex-A73 Cluster can be clocked up to 1,896GHz for both types. The Vendor Amlogic A311D OPP table are slighly different, with lower voltages than the HardKernel S922X tables but seems to be high-speed type. This adds the conservative OPP table with the S922X higher voltages and the maximum low-speed OPP frequency. The values were tested to be stable on an HardKernel Odroid-N2 board running the arm64 cpuburn at [1] and cycling between all the possible cpufreq translations for both clusters and checking the final frequency using the clock-measurer, script at [2]. [1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S [2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f Signed-off-by: Neil Armstrong --- arch/arm64/boot/dts/amlogic/meson-g12b.dtsi | 115 ++++++++++++++++++++ 1 file changed, 115 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi index ae63cd610892..334742de11a7 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi @@ -95,6 +95,121 @@ compatible = "cache"; }; }; + + cpu_opp_table_0: opp-table-0 { + compatible = "operating-points-v2"; + opp-shared; + + opp-100000000 { + opp-hz = /bits/ 64 <100000000>; + opp-microvolt = <731000>; + }; + + opp-250000000 { + opp-hz = /bits/ 64 <250000000>; + opp-microvolt = <731000>; + }; + + opp-500000000 { + opp-hz = /bits/ 64 <500000000>; + opp-microvolt = <731000>; + }; + + opp-666666666 { + opp-hz = /bits/ 64 <666666666>; + opp-microvolt = <731000>; + }; + + opp-1000000000 { + opp-hz = /bits/ 64 <1000000000>; + opp-microvolt = <731000>; + }; + + opp-1200000000 { + opp-hz = /bits/ 64 <1200000000>; + opp-microvolt = <731000>; + }; + + opp-1398000000 { + opp-hz = /bits/ 64 <1398000000>; + opp-microvolt = <761000>; + }; + + opp-1512000000 { + opp-hz = /bits/ 64 <1512000000>; + opp-microvolt = <791000>; + }; + + opp-1608000000 { + opp-hz = /bits/ 64 <1608000000>; + opp-microvolt = <831000>; + }; + + opp-1704000000 { + opp-hz = /bits/ 64 <1704000000>; + opp-microvolt = <861000>; + }; + + opp-1896000000 { + opp-hz = /bits/ 64 <1896000000>; + opp-microvolt = <981000>; + }; + }; + + cpub_opp_table_1: opp-table-1 { + compatible = "operating-points-v2"; + opp-shared; + + opp-100000000 { + opp-hz = /bits/ 64 <100000000>; + opp-microvolt = <751000>; + }; + + opp-250000000 { + opp-hz = /bits/ 64 <250000000>; + opp-microvolt = <751000>; + }; + + opp-500000000 { + opp-hz = /bits/ 64 <500000000>; + opp-microvolt = <751000>; + }; + + opp-666666666 { + opp-hz = /bits/ 64 <666666666>; + opp-microvolt = <751000>; + }; + + opp-1000000000 { + opp-hz = /bits/ 64 <1000000000>; + opp-microvolt = <751000>; + }; + + opp-1200000000 { + opp-hz = /bits/ 64 <1200000000>; + opp-microvolt = <771000>; + }; + + opp-1398000000 { + opp-hz = /bits/ 64 <1398000000>; + opp-microvolt = <791000>; + }; + + opp-1512000000 { + opp-hz = /bits/ 64 <1512000000>; + opp-microvolt = <821000>; + }; + + opp-1608000000 { + opp-hz = /bits/ 64 <1608000000>; + opp-microvolt = <861000>; + }; + + opp-1704000000 { + opp-hz = /bits/ 64 <1704000000>; + opp-microvolt = <891000>; + }; + }; }; &clkc { -- 2.21.0 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic