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Date: Mon, 3 Jun 2019 00:57:48 +0000
From: Anson Huang <anson.huang@....com>
To: Andrey Smirnov <andrew.smirnov@...il.com>
CC: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Sascha Hauer <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
"manivannan.sadhasivam@...aro.org" <manivannan.sadhasivam@...aro.org>,
"bruno.thomsen@...il.com" <bruno.thomsen@...il.com>,
Aisheng Dong <aisheng.dong@....com>,
Jacky Bai <ping.bai@....com>, Leo Li <leoyang.li@....com>,
Lucas Stach <l.stach@...gutronix.de>,
Pankaj Bansal <pankaj.bansal@....com>,
Bhaskar Upadhaya <bhaskar.upadhaya@....com>,
Pramod Kumar <pramod.kumar_1@....com>,
Vabhav Sharma <vabhav.sharma@....com>,
Leonard Crestez <leonard.crestez@....com>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@...r.kernel.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH 2/3] arm64: dts: freescale: Add i.MX8MN dtsi support
Hi, Andrey
> -----Original Message-----
> From: Andrey Smirnov <andrew.smirnov@...il.com>
> Sent: Saturday, June 1, 2019 3:04 AM
> To: Anson Huang <anson.huang@....com>
> Cc: Rob Herring <robh+dt@...nel.org>; Mark Rutland
> <mark.rutland@....com>; Shawn Guo <shawnguo@...nel.org>; Sascha
> Hauer <s.hauer@...gutronix.de>; Sascha Hauer <kernel@...gutronix.de>;
> Fabio Estevam <festevam@...il.com>; manivannan.sadhasivam@...aro.org;
> bruno.thomsen@...il.com; Aisheng Dong <aisheng.dong@....com>; Jacky
> Bai <ping.bai@....com>; Leo Li <leoyang.li@....com>; Lucas Stach
> <l.stach@...gutronix.de>; Pankaj Bansal <pankaj.bansal@....com>;
> Bhaskar Upadhaya <bhaskar.upadhaya@....com>; Pramod Kumar
> <pramod.kumar_1@....com>; Vabhav Sharma <vabhav.sharma@....com>;
> Leonard Crestez <leonard.crestez@....com>; open list:OPEN FIRMWARE
> AND FLATTENED DEVICE TREE BINDINGS <devicetree@...r.kernel.org>;
> linux-kernel <linux-kernel@...r.kernel.org>; linux-arm-kernel <linux-arm-
> kernel@...ts.infradead.org>; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH 2/3] arm64: dts: freescale: Add i.MX8MN dtsi support
>
> On Thu, May 30, 2019 at 2:45 AM <Anson.Huang@....com> wrote:
> >
> > From: Anson Huang <Anson.Huang@....com>
> >
> > The i.MX8M Nano Media Applications Processor is a new SoC of the
> > i.MX8M family, it is a 14nm FinFET product of the growing mScale
> > family targeting the consumer market. It is built in Samsung 14LPP to
> > achieve both high performance and low power consumption and relies on
> > a powerful fully coherent core complex based on a quad core ARM
> > Cortex-A53 cluster,
> > Cortex-M7 low-power coprocessor and graphics accelerator.
> >
> > This patch adds the basic dtsi support for i.MX8MN.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@....com>
> > ---
> > This patch should be based on below patches for clock and pinctrl head
> files:
> > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatc
> >
> hwork.kernel.org%2Fpatch%2F10968059%2F&data=02%7C01%7CAnson
> .Huang%
> >
> 40nxp.com%7C8d77b87aa30b4c7067ca08d6e5fac8c3%7C686ea1d3bc2b4c6fa
> 92cd99
> >
> c5c301635%7C0%7C0%7C636949262607301101&sdata=tA55rOer30Vbq
> FZ%2Badm
> > XC3K42Y%2BG7niE6BbAB4WD2%2Fk%3D&reserved=0
> > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatc
> >
> hwork.kernel.org%2Fpatch%2F10968267%2F&data=02%7C01%7CAnson
> .Huang%
> >
> 40nxp.com%7C8d77b87aa30b4c7067ca08d6e5fac8c3%7C686ea1d3bc2b4c6fa
> 92cd99
> >
> c5c301635%7C0%7C0%7C636949262607301101&sdata=wMIK9tYicC3Km
> xJ4zLDuw
> > 9Wg65vOUdCkZwX8hg3EUz4%3D&reserved=0
> > ---
> > arch/arm64/boot/dts/freescale/imx8mn.dtsi | 701
> > ++++++++++++++++++++++++++++++
> > 1 file changed, 701 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/freescale/imx8mn.dtsi
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> > b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> > new file mode 100644
> > index 0000000..c318ee6
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> > @@ -0,0 +1,701 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > +/*
> > + * Copyright 2019 NXP
> > + */
> > +
> > +#include <dt-bindings/clock/imx8mn-clock.h>
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/input/input.h>
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +#include "imx8mn-pinfunc.h"
> > +
> > +/ {
> > + compatible = "fsl,imx8mn";
> > + interrupt-parent = <&gic>;
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > +
> > + aliases {
> > + ethernet0 = &fec1;
> > + gpio0 = &gpio1;
> > + gpio1 = &gpio2;
> > + gpio2 = &gpio3;
> > + gpio3 = &gpio4;
> > + gpio4 = &gpio5;
> > + i2c0 = &i2c1;
> > + i2c1 = &i2c2;
> > + i2c2 = &i2c3;
> > + i2c3 = &i2c4;
> > + mmc0 = &usdhc1;
> > + mmc1 = &usdhc2;
> > + mmc2 = &usdhc3;
> > + serial0 = &uart1;
> > + serial1 = &uart2;
> > + serial2 = &uart3;
> > + serial3 = &uart4;
> > + spi0 = &ecspi1;
> > + spi1 = &ecspi2;
> > + spi2 = &ecspi3;
> > + };
> > +
> > + cpus {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + A53_0: cpu@0 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x0>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MN_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_1: cpu@1 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x1>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MN_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_2: cpu@2 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x2>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MN_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_3: cpu@3 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x3>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MN_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_L2: l2-cache0 {
> > + compatible = "cache";
> > + };
> > + };
> > +
> > + memory@...00000 {
> > + device_type = "memory";
> > + reg = <0x0 0x40000000 0 0x80000000>;
> > + };
> > +
> > + osc_32k: clock-osc-32k {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <32768>;
> > + clock-output-names = "osc_32k";
> > + };
> > +
> > + osc_24m: clock-osc-24m {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <24000000>;
> > + clock-output-names = "osc_24m";
> > + };
> > +
> > + clk_ext1: clock-ext1 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <133000000>;
> > + clock-output-names = "clk_ext1";
> > + };
> > +
> > + clk_ext2: clock-ext2 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <133000000>;
> > + clock-output-names = "clk_ext2";
> > + };
> > +
> > + clk_ext3: clock-ext3 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <133000000>;
> > + clock-output-names = "clk_ext3";
> > + };
> > +
> > + clk_ext4: clock-ext4 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency= <133000000>;
> > + clock-output-names = "clk_ext4";
> > + };
> > +
> > + gic: interrupt-controller@...00000 {
> > + compatible = "arm,gic-v3";
> > + reg = <0x0 0x38800000 0 0x10000>,
> > + <0x0 0x38880000 0 0xC0000>;
> > + #interrupt-cells = <3>;
> > + interrupt-controller;
> > + interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
> > + };
>
> GIC should probably go into soc {} node. At least that's how we have it in
> i.MX8MQ AFAICT.
Will move it in V2.
Thanks,
Anson.
>
> Thanks,
> Andrey Smirnov
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