From: Martin Kepplinger <martin.kepplinger@puri.sm>
To: robh@kernel.org, shawnguo@kernel.org, festevam@gmail.com,
catalin.marinas@arm.com, will@kernel.org,
georgi.djakov@linaro.org, cdleonard@gmail.com,
gregkh@linuxfoundation.org
Cc: kernel@pengutronix.de, linux-imx@nxp.com, kernel@puri.sm,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Leonard Crestez <leonard.crestez@nxp.com>,
Martin Kepplinger <martin.kepplinger@puri.sm>
Subject: [PATCH v4 1/5] arm64: dts: imx8mq: Add NOC node
Date: Thu, 7 Jan 2021 13:17:50 +0100 [thread overview]
Message-ID: <20210107121754.3295-2-martin.kepplinger@puri.sm> (raw)
In-Reply-To: <20210107121754.3295-1-martin.kepplinger@puri.sm>
From: Leonard Crestez <leonard.crestez@nxp.com>
Add initial support for dynamic frequency scaling of the main NOC
on imx8mq.
Make DDRC the parent of the NOC (using passive governor) so that the
main NOC is automatically scaled together with DDRC by default.
Support for proactive scaling via interconnect will come on top.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Acked-by: Georgi Djakov <georgi.djakov@linaro.org>
---
arch/arm64/boot/dts/freescale/imx8mq.dtsi | 24 +++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index a841a023e8e0..dbe480a76aa1 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -1158,6 +1158,30 @@
};
};
+ noc: interconnect@32700000 {
+ compatible = "fsl,imx8mq-noc", "fsl,imx8m-noc";
+ reg = <0x32700000 0x100000>;
+ clocks = <&clk IMX8MQ_CLK_NOC>;
+ fsl,ddrc = <&ddrc>;
+ operating-points-v2 = <&noc_opp_table>;
+
+ noc_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-133M {
+ opp-hz = /bits/ 64 <133333333>;
+ };
+
+ opp-400M {
+ opp-hz = /bits/ 64 <400000000>;
+ };
+
+ opp-800M {
+ opp-hz = /bits/ 64 <800000000>;
+ };
+ };
+ };
+
bus@32c00000 { /* AIPS4 */
compatible = "fsl,aips-bus", "simple-bus";
reg = <0x32c00000 0x400000>;
--
2.20.1
next prev parent reply other threads:[~2021-01-07 12:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 12:17 [PATCH v4 0/5] imx8mq: updates for the interconnect fabric Martin Kepplinger
2021-01-07 12:17 ` Martin Kepplinger [this message]
2021-01-15 10:47 ` [PATCH v4 1/5] arm64: dts: imx8mq: Add NOC node Shawn Guo
2021-01-07 12:17 ` [PATCH v4 2/5] arm64: dts: imx8mq: Add interconnect provider property Martin Kepplinger
2021-01-07 12:17 ` [PATCH v4 3/5] dt-bindings: mxsfb: Add interconnect bindings for LCDIF path Martin Kepplinger
2021-01-07 12:17 ` [PATCH v4 4/5] arm64: dts: imx8mq: Add interconnect for lcdif Martin Kepplinger
2021-01-15 9:47 ` Shawn Guo
2021-01-15 9:57 ` Martin Kepplinger
2021-01-15 10:01 ` Shawn Guo
2021-01-15 10:48 ` Shawn Guo
2021-01-07 12:17 ` [PATCH v4 5/5] arm64: defconfig: Enable interconnect for imx8mq Martin Kepplinger
2021-01-15 10:49 ` Shawn Guo
2021-01-11 4:51 ` [PATCH v4 0/5] imx8mq: updates for the interconnect fabric Shawn Guo
2021-01-11 7:26 ` Martin Kepplinger
2021-01-11 8:21 ` [PATCH v4 2/5] arm64: dts: imx8mq: Add interconnect provider property Martin Kepplinger
2021-01-15 10:48 ` Shawn Guo
2021-01-11 8:22 ` [PATCH v4 3/5] dt-bindings: mxsfb: Add interconnect bindings for LCDIF path Martin Kepplinger
2021-01-14 19:14 ` Rob Herring
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