RE: [PATCH] arm64: dts: Add support for NXP's LX2160A SoC

From: Sriram Dash
Date: Thu Aug 31 2017 - 01:16:28 EST

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>From: Rob Herring [mailto:robh@xxxxxxxxxx]
>Subject: Re: [PATCH] arm64: dts: Add support for NXP's LX2160A SoC
>
>On Fri, Aug 18, 2017 at 04:25:36PM +0530, Sriram Dash wrote:
>> The QorIQ LX2160A processor is built in the 16FFC process on the
>> Layerscape architecture combining sixteen ARM A72 processor cores with
>> advanced, high-performance datapath acceleration and network,
>> peripheral interfaces required for networking, wireless
>> infrastructure, storage, and general-purpose embedded applications.
>>
>> Features summary:
>> - Sixteen 32-bit / 64-bit ARM v8 A72 CPUs
>> - Cache Coherent Interconnect Fabric (CCN508 aka âEliotâ)
>> - Two 64-bit 3.2GT/s DDR4 SDRAM memory controllers with ECC.
>> - Data path acceleration architecture (DPAA2)
>> - 24 Serdes lanes at up to 25 GHz
>> - Ethernet interfaces
>> Single WRIOP tile supporting 130Gbps using 18 MACs
>> Support for 10G-SXGMII (aka USXGMII).
>> Support for SGMII (and 1000Base-KX)
>> Support for XFI (and 10GBase-KR)
>> Support for CAUI4 (100G); CAUI2 (50G) and 25G-AUI(25G).
>> Support for XLAUI4 (and 40GBase-KR4) for 40G.
>> Support for two RGMII parallel interfaces.
>> Energy efficient Ethernet support (802.3az)
>> IEEE 1588 support.
>> - High-speed peripheral interfaces
>> Two PCIe Gen 4.0 8-lane controllers supporting SR-IOV,
>> Four PCIe Gen 4.0 4-lane controllers.
>> Four serial ATA (SATA 3.0) controllers.
>> Two USB 3.0 controllers with integrated PHY
>> Two Enhanced secure digital host controllers
>> Two Controller Area Network (CAN) modules
>> Flexible Serial peripheral interface (FlexSPI) controller.
>> Three Serial peripheral interface (SPI) controllers.
>> Nine I2C Controllers.
>> Four UARTs supporting two 4-pin UART ports or four 2-pin UART ports.
>> General Purpose IO (GPIO)
>> - Support for hardware virtualization and partitioning (ARM MMU-500)
>> - Support for GIC (ARM GIC-500)
>> - QorIQ platform Trust Architecture 3.0
>> - One Secure WatchDog timer and one Non-Secure Watchdog timer.
>> - ARM Generic Timer
>> - Two Flextimers
>> - Debug supporting run control, data acquisition, high-speed trace,
>> performance/event monitoring
>> - Thermal Monitor Unit (TMU) with +/- 2C accuracy
>> - Support for Voltage ID (VID) for yield improvement
>>
>> Signed-off-by: Sriram Dash <sriram.dash@xxxxxxx>
>> ---
>> Documentation/devicetree/bindings/arm/fsl.txt | 8 +
>> arch/arm64/boot/dts/freescale/Makefile | 1 +
>> arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 240
>> +++++++++++++++++++++++++
>> arch/arm64/boot/dts/freescale/fsl-lx2qds1.dts | 54 ++++++
>> 4 files changed, 303 insertions(+)
>> create mode 100644 arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> create mode 100644 arch/arm64/boot/dts/freescale/fsl-lx2qds1.dts
>>
>> diff --git a/Documentation/devicetree/bindings/arm/fsl.txt
>> b/Documentation/devicetree/bindings/arm/fsl.txt
>> index cdb9dd7..6069434 100644
>> --- a/Documentation/devicetree/bindings/arm/fsl.txt
>> +++ b/Documentation/devicetree/bindings/arm/fsl.txt
>> @@ -218,3 +218,11 @@ Required root node properties:
>> LS2088A ARMv8 based RDB Board
>> Required root node properties:
>> - compatible = "fsl,ls2088a-rdb", "fsl,ls2088a";
>> +
>> +LX2160A SoC
>> +Required root node properties:
>> + - compatible = "fsl,lx2160a";
>> +
>> +LX2160A ARMv8 based QDS Board
>> +Required root node properties:
>> + - compatible = "fsl,lx2qds1", "fsl,lx2160a";
>> diff --git a/arch/arm64/boot/dts/freescale/Makefile
>> b/arch/arm64/boot/dts/freescale/Makefile
>> index 72c4b52..634f6d4 100644
>> --- a/arch/arm64/boot/dts/freescale/Makefile
>> +++ b/arch/arm64/boot/dts/freescale/Makefile
>> @@ -12,6 +12,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls2080a-rdb.dtb
>> dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls2080a-simu.dtb
>> dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls2088a-qds.dtb
>> dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls2088a-rdb.dtb
>> +dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2qds1.dtb
>>
>> always := $(dtb-y)
>> subdir-y := $(dts-dirs)
>> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> new file mode 100644
>> index 0000000..48874cf
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> @@ -0,0 +1,240 @@
>> +/*
>> + * Device Tree Include file for Layerscape-LX2160A family SoC.
>> + *
>> + * Copyright 2017 NXP
>> + *
>> + * Sriram Dash <sriram.dash@xxxxxxx>
>> + *
>> + * This file is dual-licensed: you can use it either under the terms
>> + * of the GPLv2 or the X11 license, at your option. Note that this
>> +dual
>> + * licensing only applies to this file, and not this project as a
>> + * whole.
>> + *
>> + * a) This library is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License as
>> + * published by the Free Software Foundation; either version 2 of the
>> + * License, or (at your option) any later version.
>> + *
>> + * This library is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> + * GNU General Public License for more details.
>> + *
>> + * Or, alternatively,
>> + *
>> + * b) Permission is hereby granted, free of charge, to any person
>> + * obtaining a copy of this software and associated documentation
>> + * files (the "Software"), to deal in the Software without
>> + * restriction, including without limitation the rights to use,
>> + * copy, modify, merge, publish, distribute, sublicense, and/or
>> + * sell copies of the Software, and to permit persons to whom the
>> + * Software is furnished to do so, subject to the following
>> + * conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be
>> + * included in all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
>> + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
>> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
>> + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
>> + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>> + * OTHER DEALINGS IN THE SOFTWARE.
>> + */
>> +
>> +#include <dt-bindings/interrupt-controller/arm-gic.h>
>> +
>> +/memreserve/ 0x80000000 0x00010000;
>> +
>> +/ {
>> + compatible = "fsl,lx2160a";
>> + interrupt-parent = <&gic>;
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>> +
>> + cpus {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + /* We have 8 clusters having 2 Cortex-A72 cores each */
>> + cpu@0 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x0>;
>> + };
>> +
>> + cpu@1 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x1>;
>> + };
>> +
>> + cpu@100 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x100>;
>> + };
>> +
>> + cpu@101 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x101>;
>> + };
>> +
>> + cpu@200 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x200>;
>> + };
>> +
>> + cpu@201 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x201>;
>> + };
>> +
>> + cpu@300 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x300>;
>> + };
>> +
>> + cpu@301 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x301>;
>> + };
>> +
>> + cpu@400 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x400>;
>> + };
>> +
>> + cpu@401 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x401>;
>> + };
>> +
>> + cpu@500 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x500>;
>> + };
>> +
>> + cpu@501 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x501>;
>> + };
>> +
>> + cpu@600 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x600>;
>> + };
>> +
>> + cpu@601 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x601>;
>> + };
>> +
>> + cpu@700 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x700>;
>> + };
>> +
>> + cpu@701 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a72";
>> + reg = <0x701>;
>> + };
>> +
>> + };
>> +
>> + memory@80000000 {
>> + device_type = "memory";
>> + reg = <0x00000000 0x80000000 0 0x80000000>;
>> + /* DRAM space - 1, size : 2 GB DRAM */
>> + };
>> +
>> + sysclk: sysclk {
>> + compatible = "fixed-clock";
>> + #clock-cells = <0>;
>> + clock-frequency = <100000000>;
>> + clock-output-names = "sysclk";
>> + };
>> +
>> + gic: interrupt-controller@6000000 {
>> + compatible = "arm,gic-v3";
>> + reg = <0x0 0x06000000 0 0x10000>, /* GIC Dist */
>> + <0x0 0x06200000 0 0x200000>, /*GICR(RD_base + SGI_base)*/
>> + <0x0 0x0c0c0000 0 0x2000>, /* GICC */
>> + <0x0 0x0c0d0000 0 0x1000>, /* GICH */
>> + <0x0 0x0c0e0000 0 0x20000>; /* GICV */
>> + #interrupt-cells = <3>;
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>
>Both of these can be 1.
>

Ok. Will update in next rev.

>> + ranges;
>
>It's preferred to have a value here.
>
>> + interrupt-controller;
>> + interrupts = <1 9 0x4>;
>> +
>> + its: gic-its@6020000 {
>> + compatible = "arm,gic-v3-its";
>> + msi-controller;
>> + reg = <0x0 0x6020000 0 0x20000>;
>> + };
>> + };
>> +
>> + timer {
>> + compatible = "arm,armv8-timer";
>> + interrupts = <1 13 4>, /* Physical Secure PPI, active-low */
>> + <1 14 4>, /* Physical Non-Secure PPI, active-low */
>> + <1 11 4>, /* Virtual PPI, active-low */
>> + <1 10 4>; /* Hypervisor PPI, active-low */
>> + };
>> +
>> + soc {
>> + compatible = "simple-bus";
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>
>These can be 1 if the I/O devices fit into 4GB space.
>

Ok. I checked, it can be be 1. Will update in next version.

>> + ranges;
>> +
>> + uart0: serial@21c0000 {
>> + device_type = "serial";
>> + compatible = "arm,pl011","arm,sbsa-uart";
>> + reg = <0x0 0x21c0000 0x0 0x1000>;
>> + interrupts = <0 32 0x4>;
>> + current-speed = <115200>;
>> + };
>> +
>> + uart1: serial@21d0000 {
>> + device_type = "serial";
>> + compatible = "arm,pl011","arm,sbsa-uart";
>> + reg = <0x0 0x21d0000 0x0 0x1000>;
>> + interrupts = <0 33 0x4>;
>> + current-speed = <115200>;
>> + };
>> +
>> + uart2: serial@21e0000 {
>> + device_type = "serial";
>> + compatible = "arm,pl011","arm,sbsa-uart";
>> + reg = <0x0 0x21e0000 0x0 0x1000>;
>> + interrupts = <0 72 0x4>;
>> + current-speed = <115200>;
>> + };
>> +
>> + uart3: serial@21f0000 {
>> + device_type = "serial";
>> + compatible = "arm,pl011","arm,sbsa-uart";
>> + reg = <0x0 0x21f0000 0x0 0x1000>;
>> + interrupts = <0 73 0x4>;
>> + current-speed = <115200>;
>> + };
>> + };
>> +};
>> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2qds1.dts
>> b/arch/arm64/boot/dts/freescale/fsl-lx2qds1.dts
>> new file mode 100644
>> index 0000000..0a8f525
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2qds1.dts
>> @@ -0,0 +1,54 @@
>> +/*
>> + * Device Tree file for LX2 QDS1 Board
>> + *
>> + * Copyright 2017 NXP
>> + *
>> + * Sriram Dash <sriram.dash@xxxxxxx>
>> + *
>> + * This file is dual-licensed: you can use it either under the terms
>> + * of the GPL or the X11 license, at your option. Note that this dual
>> + * licensing only applies to this file, and not this project as a
>> + * whole.
>> + *
>> + * a) This library is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License as
>> + * published by the Free Software Foundation; either version 2 of the
>> + * License, or (at your option) any later version.
>> + *
>> + * This library is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> + * GNU General Public License for more details.
>> + *
>> + * Or, alternatively,
>> + *
>> + * b) Permission is hereby granted, free of charge, to any person
>> + * obtaining a copy of this software and associated documentation
>> + * files (the "Software"), to deal in the Software without
>> + * restriction, including without limitation the rights to use,
>> + * copy, modify, merge, publish, distribute, sublicense, and/or
>> + * sell copies of the Software, and to permit persons to whom the
>> + * Software is furnished to do so, subject to the following
>> + * conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be
>> + * included in all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
>> + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
>> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
>> + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
>> + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>> + * OTHER DEALINGS IN THE SOFTWARE.
>> + */
>> +
>> +/dts-v1/;
>> +
>> +#include "fsl-lx2160a.dtsi"
>> +
>> +/ {
>> + model = "NXP Layerscape LX2 QDS1 Board";
>> + compatible = "fsl,lx2qds1", "fsl,lx2160a"; };
>> --
>> 1.9.1
>>
>> --
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