Re: [PATCH v9 2/3] arm64: dts: marvell: Add Armada 98DX2530 SoC and RD-AC5X board

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On 14/06/22 17:11, Chris Packham wrote:
>
> On 14/06/22 10:53, Vadym Kochan wrote:
>> From: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
>>
>> The 98DX2530 SoC is the Control and Management CPU integrated into
>> the Marvell 98DX25xx and 98DX35xx series of switch chip (internally
>> referred to as AlleyCat5 and AlleyCat5X).
>>
>> These files have been taken from the Marvell SDK and lightly cleaned
>> up with the License and copyright retained.
>>
>> Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
>> Signed-off-by: Vadym Kochan <vadym.kochan@xxxxxxxxxxx>
>> ---
>>
>> Notes:
>>      The Marvell SDK has a number of new compatible strings. I've 
>> brought
>>      through some of the drivers or where possible used an in-tree
>>      alternative (e.g. there is SDK code for a ac5-gpio but two 
>> instances of
>>      the existing marvell,orion-gpio seems to cover what is needed if 
>> you use
>>      an appropriate binding). I expect that there will a new series of
>>      patches when I get some different hardware (or additions to this 
>> series
>>      depending on if/when it lands).
>>           Changes in v9 (proposed by Marvell):
>>        It was discussed with Chris that Marvell will add some changes:
>>
>>           1) Rename "armada-" prefix in dts(i) file names to ac5, 
>> because
>>              Armada has not much common with AC5 SoC.
>>
>>           2) Add clock fixes:
>>              - rename core_clock to cnm_clock
>>              - remove axi_clock
>>              - change cnm_clock to 325MHZ
>>              - use cnm_clock for the UART
>>
>>      Changes in v8:
>>      - Remove unnecessary clock-frequency property on armv8-timer
>>      - Remove unnecessary redistributor-stride property on gic
>>      - Add GIC_SPI interrupts for gpios
>>      Changes in v7:
>>      - Add missing compatible on usb1
>>      - Add "rd-ac5x" compatible for board
>>      - Move aliases to board dts
>>      - Move board specific usb info to board dts
>>      - Consolidate usb1 board settings and remove unnecessary compatible
>>      - Add Allied Telesis copyright
>>      - Rename files after mailng-list discussion
>>      Changes in v6:
>>      - Move CPU nodes above the SoC (Krzysztof)
>>      - Minor formatting clean ups (Krzysztof)
>>      - Run through `make dtbs_check`
>>      - Move gic nodes inside SoC
>>      - Group clocks under a clock node
>>      Changes in v5:
>>      - add #{address,size}-cells property to i2c nodes
>>      - make i2c nodes disabled in the SoC and enable them in the board
>>      - add interrupt controller attributes to gpio nodes
>>      - Move fixed-clock nodes up a level and remove unnecessary @0
>>      Changes in v4:
>>      - use 'phy-handle' instead of 'phy'
>>      - move status="okay" on usb nodes to board dts
>>      - Add review from Andrew
>>      Changes in v3:
>>      - Move memory node to board
>>      - Use single digit reg value for phy address
>>      - Remove MMC node (driver needs work)
>>      - Remove syscon & simple-mfd for pinctrl
>>      Changes in v2:
>>      - Make pinctrl a child node of a syscon node
>>      - Use marvell,armada-8k-gpio instead of orion-gpio
>>      - Remove nand peripheral. The Marvell SDK does have some changes 
>> for the
>>        ac5-nand-controller but I currently lack hardware with NAND 
>> fitted so
>>        I can't test it right now. I've therefore chosen to omit the 
>> node and
>>        not attempted to bring in the driver or binding.
>>      - Remove pcie peripheral. Again there are changes in the SDK and 
>> I have
>>        no way of testing them.
>>      - Remove prestera node.
>>      - Remove "marvell,ac5-ehci" compatible from USB node as
>>        "marvell,orion-ehci" is sufficient
>>      - Remove watchdog node. There is a buggy driver for the ac5 
>> watchdog in
>>        the SDK but it needs some work so I've dropped the node for now.
>>
>>   arch/arm64/boot/dts/marvell/Makefile          |   1 +
>>   arch/arm64/boot/dts/marvell/ac5-98dx25xx.dtsi | 291 ++++++++++++++++++
>>   .../boot/dts/marvell/ac5-98dx35xx-rd.dts      | 101 ++++++
>>   arch/arm64/boot/dts/marvell/ac5-98dx35xx.dtsi |  13 +
>>   4 files changed, 406 insertions(+)
>>   create mode 100644 arch/arm64/boot/dts/marvell/ac5-98dx25xx.dtsi
>>   create mode 100644 arch/arm64/boot/dts/marvell/ac5-98dx35xx-rd.dts
>>   create mode 100644 arch/arm64/boot/dts/marvell/ac5-98dx35xx.dtsi
>>
>> diff --git a/arch/arm64/boot/dts/marvell/Makefile 
>> b/arch/arm64/boot/dts/marvell/Makefile
>> index 1c794cdcb8e6..b6d493e34dc5 100644
>> --- a/arch/arm64/boot/dts/marvell/Makefile
>> +++ b/arch/arm64/boot/dts/marvell/Makefile
>> @@ -24,3 +24,4 @@ dtb-$(CONFIG_ARCH_MVEBU) += cn9132-db.dtb
>>   dtb-$(CONFIG_ARCH_MVEBU) += cn9132-db-B.dtb
>>   dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-A.dtb
>>   dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-B.dtb
>> +dtb-$(CONFIG_ARCH_MVEBU) += ac5-98dx35xx-rd.dtb
>> diff --git a/arch/arm64/boot/dts/marvell/ac5-98dx25xx.dtsi 
>> b/arch/arm64/boot/dts/marvell/ac5-98dx25xx.dtsi
>> new file mode 100644
>> index 000000000000..cf0b4a7de323
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/marvell/ac5-98dx25xx.dtsi
>> @@ -0,0 +1,291 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +/*
>> + * Device Tree For AC5.
>> + *
>> + * Copyright (C) 2021 Marvell
>> + * Copyright (C) 2022 Allied Telesis Labs
>> + */
>> +
>> +#include <dt-bindings/gpio/gpio.h>
>> +#include <dt-bindings/interrupt-controller/arm-gic.h>
>> +
>> +/ {
>> +    model = "Marvell AC5 SoC";
>> +    compatible = "marvell,ac5";
>> +    interrupt-parent = <&gic>;
>> +    #address-cells = <2>;
>> +    #size-cells = <2>;
>> +
>> +    cpus {
>> +        #address-cells = <2>;
>> +        #size-cells = <0>;
>> +
>> +        cpu-map {
>> +            cluster0 {
>> +                core0 {
>> +                    cpu = <&cpu0>;
>> +                };
>> +                core1 {
>> +                    cpu = <&cpu1>;
>> +                };
>> +            };
>> +        };
>> +
>> +        cpu0: cpu@0 {
>> +            device_type = "cpu";
>> +            compatible = "arm,armv8";
>> +            reg = <0x0 0x0>;
>> +            enable-method = "psci";
>> +            next-level-cache = <&l2>;
>> +        };
>> +
>> +        cpu1: cpu@1 {
>> +            device_type = "cpu";
>> +            compatible = "arm,armv8";
>> +            reg = <0x0 0x100>;
>> +            enable-method = "psci";
>> +            next-level-cache = <&l2>;
>> +        };
>> +
>> +        l2: l2-cache {
>> +            compatible = "cache";
>> +        };
>> +    };
>> +
>> +    psci {
>> +        compatible = "arm,psci-0.2";
>> +        method = "smc";
>> +    };
>> +
>> +    timer {
>> +        compatible = "arm,armv8-timer";
>> +        interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>,
>> +                 <GIC_PPI 8 IRQ_TYPE_LEVEL_HIGH>,
>> +                 <GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>,
>> +                 <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
> Marvell confirmed to me that the EL2 virtual timer is not connected to 
> an interrupt.
>> +    };
>> +
>> +    pmu {
>> +        compatible = "arm,armv8-pmuv3";
>> +        interrupts = <GIC_PPI 12 IRQ_TYPE_LEVEL_HIGH>;
>> +    };
>> +
>> +    soc {
>> +        compatible = "simple-bus";
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +        ranges;
>> +        dma-ranges;
>> +
>> +        internal-regs@7f000000 {
>> +            #address-cells = <1>;
>> +            #size-cells = <1>;
>> +            compatible = "simple-bus";
>> +            /* 16M internal register @ 0x7f00_0000 */
>> +            ranges = <0x0 0x0 0x7f000000 0x1000000>;
>> +            dma-coherent;
>> +
>> +            uart0: serial@12000 {
>> +                compatible = "snps,dw-apb-uart";
>> +                reg = <0x12000 0x100>;
>> +                reg-shift = <2>;
>> +                interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
>> +                reg-io-width = <1>;
>> +                clocks = <&cnm_clock>;
>
> With this change I see some garbled output when the "Serial: AMBA 
> PL011 UART" driver starts.
>
> It could be that my bootloader has the same wrong clock value as the 
> earlier iteration of this device tree.
Fixing u-boot doesn't help but there are also references to 328000000 in 
mv-ddr and ATF so I'll look to see if updating them fixes the issue 
tomorrow.
>
>> +                status = "okay";
>> +            };
>> +
>> +            mdio: mdio@22004 {
>> +                #address-cells = <1>;
>> +                #size-cells = <0>;
>> +                compatible = "marvell,orion-mdio";
>> +                reg = <0x22004 0x4>;
>> +                clocks = <&cnm_clock>;
>> +            };
>> +
>> +            i2c0: i2c@11000{
>> +                compatible = "marvell,mv78230-i2c";
>> +                reg = <0x11000 0x20>;
>> +                #address-cells = <1>;
>> +                #size-cells = <0>;
>> +
>> +                clocks = <&cnm_clock>;
>> +                clock-names = "core";
>> +                interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
>> +                clock-frequency=<100000>;
>> +
>> +                pinctrl-names = "default", "gpio";
>> +                pinctrl-0 = <&i2c0_pins>;
>> +                pinctrl-1 = <&i2c0_gpio>;
>> +                scl_gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>;
>> +                sda_gpio = <&gpio0 27 GPIO_ACTIVE_HIGH>;
>> +                status = "disabled";
>> +            };
>> +
>> +            i2c1: i2c@11100{
>> +                compatible = "marvell,mv78230-i2c";
>> +                reg = <0x11100 0x20>;
>> +                #address-cells = <1>;
>> +                #size-cells = <0>;
>> +
>> +                clocks = <&cnm_clock>;
>> +                clock-names = "core";
>> +                interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
>> +                clock-frequency=<100000>;
>> +
>> +                pinctrl-names = "default", "gpio";
>> +                pinctrl-0 = <&i2c1_pins>;
>> +                pinctrl-1 = <&i2c1_gpio>;
>> +                scl_gpio = <&gpio0 20 GPIO_ACTIVE_HIGH>;
>> +                sda_gpio = <&gpio0 21 GPIO_ACTIVE_HIGH>;
>> +                status = "disabled";
>> +            };
>> +
>> +            gpio0: gpio@18100 {
>> +                compatible = "marvell,orion-gpio";
>> +                reg = <0x18100 0x40>;
>> +                ngpios = <32>;
>> +                gpio-controller;
>> +                #gpio-cells = <2>;
>> +                gpio-ranges = <&pinctrl0 0 0 32>;
>> +                marvell,pwm-offset = <0x1f0>;
>> +                interrupt-controller;
>> +                #interrupt-cells = <2>;
>> +                interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
>> +                         <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
>> +                         <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
>> +                         <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
>> +            };
>> +
>> +            gpio1: gpio@18140 {
>> +                reg = <0x18140 0x40>;
>> +                compatible = "marvell,orion-gpio";
>> +                ngpios = <14>;
>> +                gpio-controller;
>> +                #gpio-cells = <2>;
>> +                gpio-ranges = <&pinctrl0 0 32 14>;
>> +                marvell,pwm-offset = <0x1f0>;
>> +                interrupt-controller;
>> +                #interrupt-cells = <2>;
>> +                interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
>> +                         <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
>> +            };
>> +        };
>> +
>> +        /*
>> +         * Dedicated section for devices behind 32bit controllers so we
>> +         * can configure specific DMA mapping for them
>> +         */
>> +        behind-32bit-controller@7f000000 {
>> +            compatible = "simple-bus";
>> +            #address-cells = <0x2>;
>> +            #size-cells = <0x2>;
>> +            ranges = <0x0 0x0 0x0 0x7f000000 0x0 0x1000000>;
>> +            /* Host phy ram starts at 0x200M */
>> +            dma-ranges = <0x0 0x0 0x2 0x0 0x1 0x0>;
>> +            dma-coherent;
>> +
>> +            eth0: ethernet@20000 {
>> +                compatible = "marvell,armada-ac5-neta";
>> +                reg = <0x0 0x20000 0x0 0x4000>;
>> +                interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
>> +                clocks = <&cnm_clock>;
>> +                phy-mode = "sgmii";
>> +                status = "disabled";
>> +            };
>> +
>> +            eth1: ethernet@24000 {
>> +                compatible = "marvell,armada-ac5-neta";
>> +                reg = <0x0 0x24000 0x0 0x4000>;
>> +                interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
>> +                clocks = <&cnm_clock>;
>> +                phy-mode = "sgmii";
>> +                status = "disabled";
>> +            };
>> +
>> +            usb0: usb@80000 {
>> +                compatible = "marvell,orion-ehci";
>> +                reg = <0x0 0x80000 0x0 0x500>;
>> +                interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
>> +                status = "disabled";
>> +            };
>> +
>> +            usb1: usb@a0000 {
>> +                compatible = "marvell,orion-ehci";
>> +                reg = <0x0 0xa0000 0x0 0x500>;
>> +                interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
>> +                status = "disabled";
>> +            };
>> +        };
>> +
>> +        pinctrl0: pinctrl@80020100 {
>> +            compatible = "marvell,ac5-pinctrl";
>> +            reg = <0 0x80020100 0 0x20>;
>> +
>> +            i2c0_pins: i2c0-pins {
>> +                marvell,pins = "mpp26", "mpp27";
>> +                marvell,function = "i2c0";
>> +            };
>> +
>> +            i2c0_gpio: i2c0-gpio-pins {
>> +                marvell,pins = "mpp26", "mpp27";
>> +                marvell,function = "gpio";
>> +            };
>> +
>> +            i2c1_pins: i2c1-pins {
>> +                marvell,pins = "mpp20", "mpp21";
>> +                marvell,function = "i2c1";
>> +            };
>> +
>> +            i2c1_gpio: i2c1-gpio-pins {
>> +                marvell,pins = "mpp20", "mpp21";
>> +                marvell,function = "i2c1";
>> +            };
>> +        };
>> +
>> +        spi0: spi@805a0000 {
>> +            compatible = "marvell,armada-3700-spi";
>> +            reg = <0x0 0x805a0000 0x0 0x50>;
>> +            #address-cells = <0x1>;
>> +            #size-cells = <0x0>;
>> +            clocks = <&spi_clock>;
>> +            interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
>> +            num-cs = <1>;
>> +            status = "disabled";
>> +        };
>> +
>> +        spi1: spi@805a8000 {
>> +            compatible = "marvell,armada-3700-spi";
>> +            reg = <0x0 0x805a8000 0x0 0x50>;
>> +            #address-cells = <0x1>;
>> +            #size-cells = <0x0>;
>> +            clocks = <&spi_clock>;
>> +            interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
>> +            num-cs = <1>;
>> +            status = "disabled";
>> +        };
>> +
>> +        gic: interrupt-controller@80600000 {
>> +            compatible = "arm,gic-v3";
>> +            #interrupt-cells = <3>;
>> +            interrupt-controller;
>> +            reg = <0x0 0x80600000 0x0 0x10000>, /* GICD */
>> +                  <0x0 0x80660000 0x0 0x40000>; /* GICR */
>> +            interrupts = <GIC_PPI 6 IRQ_TYPE_LEVEL_HIGH>;
>> +        };
>> +    };
>> +
>> +    clocks {
>> +        cnm_clock: core-clock {
>> +            compatible = "fixed-clock";
>> +            #clock-cells = <0>;
>> +            clock-frequency = <325000000>;
>> +        };
>> +
>> +        spi_clock: spi-clock {
>> +            compatible = "fixed-clock";
>> +            #clock-cells = <0>;
>> +            clock-frequency = <200000000>;
>> +        };
>> +    };
>> +};
>> diff --git a/arch/arm64/boot/dts/marvell/ac5-98dx35xx-rd.dts 
>> b/arch/arm64/boot/dts/marvell/ac5-98dx35xx-rd.dts
>> new file mode 100644
>> index 000000000000..f0ebdb84eec9
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/marvell/ac5-98dx35xx-rd.dts
>> @@ -0,0 +1,101 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +/*
>> + * Device Tree For RD-AC5X.
>> + *
>> + * Copyright (C) 2021 Marvell
>> + * Copyright (C) 2022 Allied Telesis Labs
>> + */
>> +/*
>> + * Device Tree file for Marvell Alleycat 5X development board
>> + * This board file supports the B configuration of the board
>> + */
>> +
>> +/dts-v1/;
>> +
>> +#include "ac5-98dx35xx.dtsi"
>> +
>> +/ {
>> +    model = "Marvell RD-AC5X Board";
>> +    compatible = "marvell,rd-ac5x", "marvell,ac5x", "marvell,ac5";
>> +
>> +    aliases {
>> +        serial0 = &uart0;
>> +        spiflash0 = &spiflash0;
>> +        gpio0 = &gpio0;
>> +        gpio1 = &gpio1;
>> +        ethernet0 = &eth0;
>> +        ethernet1 = &eth1;
>> +    };
>> +
>> +    memory@0 {
>> +        device_type = "memory";
>> +        reg = <0x2 0x00000000 0x0 0x40000000>;
>> +    };
>> +
>> +    usb1phy: usb-phy {
>> +        compatible = "usb-nop-xceiv";
>> +        #phy-cells = <0>;
>> +    };
>> +};
>> +
>> +&mdio {
>> +    phy0: ethernet-phy@0 {
>> +        reg = <0>;
>> +    };
>> +};
>> +
>> +&i2c0 {
>> +    status = "okay";
>> +};
>> +
>> +&i2c1 {
>> +    status = "okay";
>> +};
>> +
>> +&eth0 {
>> +    status = "okay";
>> +    phy-handle = <&phy0>;
>> +};
>> +
>> +/* USB0 is a host USB */
>> +&usb0 {
>> +    status = "okay";
>> +};
>> +
>> +/* USB1 is a peripheral USB */
>> +&usb1 {
>> +    status = "okay";
>> +    phys = <&usb1phy>;
>> +    phy-names = "usb-phy";
>> +    dr_mode = "peripheral";
>> +};
>> +
>> +&spi0 {
>> +    status = "okay";
>> +
>> +    spiflash0: flash@0 {
>> +        compatible = "jedec,spi-nor";
>> +        spi-max-frequency = <50000000>;
>> +        spi-tx-bus-width = <1>; /* 1-single, 2-dual, 4-quad */
>> +        spi-rx-bus-width = <1>; /* 1-single, 2-dual, 4-quad */
>> +        reg = <0>;
>> +
>> +        #address-cells = <1>;
>> +        #size-cells = <1>;
>> +
>> +        partition@0 {
>> +            label = "spi_flash_part0";
>> +            reg = <0x0 0x800000>;
>> +        };
>> +
>> +        parition@1 {
>> +            label = "spi_flash_part1";
>> +            reg = <0x800000 0x700000>;
>> +        };
>> +
>> +        parition@2 {
>> +            label = "spi_flash_part2";
>> +            reg = <0xF00000 0x100000>;
>> +        };
>> +    };
>> +};
>> diff --git a/arch/arm64/boot/dts/marvell/ac5-98dx35xx.dtsi 
>> b/arch/arm64/boot/dts/marvell/ac5-98dx35xx.dtsi
>> new file mode 100644
>> index 000000000000..50d464d9d2f4
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/marvell/ac5-98dx35xx.dtsi
>> @@ -0,0 +1,13 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +/*
>> + * Device Tree For AC5X.
>> + *
>> + * Copyright (C) 2022 Allied Telesis Labs
>> + */
>> +
>> +#include "ac5-98dx25xx.dtsi"
>> +
>> +/ {
>> +    model = "Marvell AC5X SoC";
>> +    compatible = "marvell,ac5x", "marvell,ac5";
>> +};




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