Re: [PATCH v3 1/6] arm64: dts: imx8mq: Add NOC node
From: Shawn Guo <shawnguo@kernel.org>
Date: 2021-01-07 05:13:39
Also in:
linux-arm-kernel, linux-pm, lkml
On Thu, Dec 10, 2020 at 11:09:01AM +0100, Martin Kepplinger wrote:
quoted hunk ↗ jump to hunk
From: Leonard Crestez <redacted> 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 <redacted> Signed-off-by: Martin Kepplinger <redacted> --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index a841a023e8e0..9c9d68a14e69 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi@@ -1158,6 +1158,28 @@ }; }; + 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>; + };
Please have a newline between nodes. Shawn
+ 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