Re: [PATCH 06/12] riscv: dts: allwinner: Add the D1 SoC base devicetree

[<Conor.Dooley@microchip.com>]

On 15/08/2022 14:11, Andre Przywara wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On Mon, 15 Aug 2022 00:08:09 -0500
> Samuel Holland <samuel@sholland.org> wrote:
> 
> Hi,
> 
> thanks for all the efforts in getting those SoC peripherals supported!
> 
>> D1 is a SoC containing a single-core T-HEAD Xuantie C906 CPU, as well as
>> one HiFi 4 DSP. The SoC is based on a design that additionally contained
>> a pair of Cortex A7's. For that reason, some peripherals are duplicated.
> 
> So because of this, the Allwinner R528 and T113 SoCs would share almost
> everything in this file. Would it be useful to already split this DT up?
> To have a base .dtsi, basically this file without /cpus and /soc/plic,
> then have a RISC-V specific file with just those, including the base?
> There is precedence for this across-arch(-directories) sharing with the
> Raspberry Pi and Allwinner H3/H5 SoCs.

For those playing along at home, one example is the arm64 bananapi m2
dts which looks like:
> /dts-v1/;
> #include "sun50i-h5.dtsi"
> #include "sun50i-h5-cpu-opp.dtsi"
> #include <arm/sunxi-bananapi-m2-plus-v1.2.dtsi>
>
> / {
> 	model = "Banana Pi BPI-M2-Plus v1.2 H5";
> 	compatible = "bananapi,bpi-m2-plus-v1.2", "allwinner,sun50i-h5";
> };

I think this is a pretty good idea, and putting in the modularity up
front seems logical to me, so when the arm one does eventually get
added it can be done by only touching a single arch.

Thanks,
Conor.
> 
> Or do you plan to leave that for when support for the ARM core versions is
> actually submitted? But I don't think we need any extra *code* for that,
> it's just the DT?
> 
> Cheers,
> Andre.
> 
> 
>>
>> This devicetree includes all of the peripherals that already have a
>> documented binding.
>>
>> Signed-off-by: Samuel Holland <samuel@sholland.org>
>> ---
>>
>>  arch/riscv/boot/dts/Makefile                 |   1 +
>>  arch/riscv/boot/dts/allwinner/Makefile       |   1 +
>>  arch/riscv/boot/dts/allwinner/sun20i-d1.dtsi | 900 +++++++++++++++++++
>>  3 files changed, 902 insertions(+)
>>  create mode 100644 arch/riscv/boot/dts/allwinner/Makefile
>>  create mode 100644 arch/riscv/boot/dts/allwinner/sun20i-d1.dtsi
>>
>> diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile
>> index ff174996cdfd..f292e31bdb2c 100644
>> --- a/arch/riscv/boot/dts/Makefile
>> +++ b/arch/riscv/boot/dts/Makefile
>> @@ -1,4 +1,5 @@
>>  # SPDX-License-Identifier: GPL-2.0
>> +subdir-y += allwinner
>>  subdir-y += sifive
>>  subdir-y += starfive
>>  subdir-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += canaan
>> diff --git a/arch/riscv/boot/dts/allwinner/Makefile b/arch/riscv/boot/dts/allwinner/Makefile
>> new file mode 100644
>> index 000000000000..f66554cd5c45
>> --- /dev/null
>> +++ b/arch/riscv/boot/dts/allwinner/Makefile
>> @@ -0,0 +1 @@
>> +# SPDX-License-Identifier: GPL-2.0
>> diff --git a/arch/riscv/boot/dts/allwinner/sun20i-d1.dtsi b/arch/riscv/boot/dts/allwinner/sun20i-d1.dtsi
>> new file mode 100644
>> index 000000000000..d1429274f22e
>> --- /dev/null
>> +++ b/arch/riscv/boot/dts/allwinner/sun20i-d1.dtsi
>> @@ -0,0 +1,900 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
>> +// Copyright (C) 2021-2022 Samuel Holland <samuel@sholland.org>
>> +
>> +#include <dt-bindings/clock/sun6i-rtc.h>
>> +#include <dt-bindings/clock/sun8i-de2.h>
>> +#include <dt-bindings/clock/sun8i-tcon-top.h>
>> +#include <dt-bindings/clock/sun20i-d1-ccu.h>
>> +#include <dt-bindings/clock/sun20i-d1-r-ccu.h>
>> +#include <dt-bindings/interrupt-controller/irq.h>
>> +#include <dt-bindings/reset/sun8i-de2.h>
>> +#include <dt-bindings/reset/sun20i-d1-ccu.h>
>> +#include <dt-bindings/reset/sun20i-d1-r-ccu.h>
>> +#include <dt-bindings/thermal/thermal.h>
>> +
>> +/ {
>> +     #address-cells = <1>;
>> +     #size-cells = <1>;
>> +
>> +     cpus {
>> +             timebase-frequency = <24000000>;
>> +             #address-cells = <1>;
>> +             #size-cells = <0>;
>> +
>> +             cpu0: cpu@0 {
>> +                     compatible = "thead,c906", "riscv";
>> +                     device_type = "cpu";
>> +                     reg = <0>;
>> +                     clocks = <&ccu CLK_RISCV>;
>> +                     clock-frequency = <24000000>;
>> +                     d-cache-block-size = <64>;
>> +                     d-cache-sets = <256>;
>> +                     d-cache-size = <32768>;
>> +                     i-cache-block-size = <64>;
>> +                     i-cache-sets = <128>;
>> +                     i-cache-size = <32768>;
>> +                     mmu-type = "riscv,sv39";
>> +                     riscv,isa = "rv64imafdc";
>> +                     #cooling-cells = <2>;
>> +
>> +                     cpu0_intc: interrupt-controller {
>> +                             compatible = "riscv,cpu-intc";
>> +                             interrupt-controller;
>> +                             #address-cells = <0>;
>> +                             #interrupt-cells = <1>;
>> +                     };
>> +             };
>> +     };
>> +
>> +     de: display-engine {
>> +             compatible = "allwinner,sun20i-d1-display-engine";
>> +             allwinner,pipelines = <&mixer0>, <&mixer1>;
>> +             status = "disabled";
>> +     };
>> +
>> +     osc24M: osc24M-clk {
>> +             compatible = "fixed-clock";
>> +             clock-frequency = <24000000>;
>> +             clock-output-names = "osc24M";
>> +             #clock-cells = <0>;
>> +     };
>> +
>> +     soc {
>> +             compatible = "simple-bus";
>> +             ranges;
>> +             interrupt-parent = <&plic>;
>> +             dma-noncoherent;
>> +             #address-cells = <1>;
>> +             #size-cells = <1>;
>> +
>> +             dsp_wdt: watchdog@1700400 {
>> +                     compatible = "allwinner,sun20i-d1-wdt";
>> +                     reg = <0x1700400 0x20>;
>> +                     interrupts = <138 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&osc24M>, <&rtc CLK_OSC32K>;
>> +                     clock-names = "hosc", "losc";
>> +                     status = "reserved";
>> +             };
>> +
>> +             pio: pinctrl@2000000 {
>> +                     compatible = "allwinner,sun20i-d1-pinctrl";
>> +                     reg = <0x2000000 0x800>;
>> +                     interrupts = <85 IRQ_TYPE_LEVEL_HIGH>,
>> +                                  <87 IRQ_TYPE_LEVEL_HIGH>,
>> +                                  <89 IRQ_TYPE_LEVEL_HIGH>,
>> +                                  <91 IRQ_TYPE_LEVEL_HIGH>,
>> +                                  <93 IRQ_TYPE_LEVEL_HIGH>,
>> +                                  <95 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_APB0>,
>> +                              <&osc24M>,
>> +                              <&rtc CLK_OSC32K>;
>> +                     clock-names = "apb", "hosc", "losc";
>> +                     gpio-controller;
>> +                     interrupt-controller;
>> +                     #gpio-cells = <3>;
>> +                     #interrupt-cells = <3>;
>> +
>> +                     /omit-if-no-ref/
>> +                     i2c0_pb10_pins: i2c0-pb10-pins {
>> +                             pins = "PB10", "PB11";
>> +                             function = "i2c0";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     i2c2_pb0_pins: i2c2-pb0-pins {
>> +                             pins = "PB0", "PB1";
>> +                             function = "i2c2";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     lcd_rgb666_pins: lcd-rgb666-pins {
>> +                             pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5",
>> +                                    "PD6", "PD7", "PD8", "PD9", "PD10", "PD11",
>> +                                    "PD12", "PD13", "PD14", "PD15", "PD16", "PD17",
>> +                                    "PD18", "PD19", "PD20", "PD21";
>> +                             function = "lcd0";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     mmc0_pins: mmc0-pins {
>> +                             pins = "PF0", "PF1", "PF2", "PF3", "PF4", "PF5";
>> +                             function = "mmc0";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     mmc1_pins: mmc1-pins {
>> +                             pins = "PG0", "PG1", "PG2", "PG3", "PG4", "PG5";
>> +                             function = "mmc1";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     mmc2_pins: mmc2-pins {
>> +                             pins = "PC2", "PC3", "PC4", "PC5", "PC6", "PC7";
>> +                             function = "mmc2";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     rgmii_pe_pins: rgmii-pe-pins {
>> +                             pins = "PE0", "PE1", "PE2", "PE3", "PE4",
>> +                                    "PE5", "PE6", "PE7", "PE8", "PE9",
>> +                                    "PE11", "PE12", "PE13", "PE14", "PE15";
>> +                             function = "emac";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     rmii_pe_pins: rmii-pe-pins {
>> +                             pins = "PE0", "PE1", "PE2", "PE3", "PE4",
>> +                                    "PE5", "PE6", "PE7", "PE8", "PE9";
>> +                             function = "emac";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     uart0_pb8_pins: uart0-pb8-pins {
>> +                             pins = "PB8", "PB9";
>> +                             function = "uart0";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     uart1_pg6_pins: uart1-pg6-pins {
>> +                             pins = "PG6", "PG7";
>> +                             function = "uart1";
>> +                     };
>> +
>> +                     /omit-if-no-ref/
>> +                     uart1_pg8_rts_cts_pins: uart1-pg8-rts-cts-pins {
>> +                             pins = "PG8", "PG9";
>> +                             function = "uart1";
>> +                     };
>> +             };
>> +
>> +             ccu: clock-controller@2001000 {
>> +                     compatible = "allwinner,sun20i-d1-ccu";
>> +                     reg = <0x2001000 0x1000>;
>> +                     clocks = <&osc24M>,
>> +                              <&rtc CLK_OSC32K>,
>> +                              <&rtc CLK_IOSC>;
>> +                     clock-names = "hosc", "losc", "iosc";
>> +                     #clock-cells = <1>;
>> +                     #reset-cells = <1>;
>> +             };
>> +
>> +             lradc: keys@2009800 {
>> +                     compatible = "allwinner,sun20i-d1-lradc",
>> +                                  "allwinner,sun50i-r329-lradc";
>> +                     reg = <0x2009800 0x400>;
>> +                     interrupts = <77 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_LRADC>;
>> +                     resets = <&ccu RST_BUS_LRADC>;
>> +                     status = "disabled";
>> +             };
>> +
>> +             codec: audio-codec@2030000 {
>> +                     compatible = "simple-mfd", "syscon";
>> +                     reg = <0x2030000 0x1000>;
>> +                     #address-cells = <1>;
>> +                     #size-cells = <1>;
>> +
>> +                     regulators@2030348 {
>> +                             compatible = "allwinner,sun20i-d1-analog-ldos";
>> +                             reg = <0x2030348 0x4>;
>> +                             nvmem-cells = <&bg_trim>;
>> +                             nvmem-cell-names = "bg_trim";
>> +
>> +                             reg_aldo: aldo {
>> +                             };
>> +
>> +                             reg_hpldo: hpldo {
>> +                             };
>> +                     };
>> +             };
>> +
>> +             i2s0: i2s@2032000 {
>> +                     compatible = "allwinner,sun20i-d1-i2s",
>> +                                  "allwinner,sun50i-r329-i2s";
>> +                     reg = <0x2032000 0x1000>;
>> +                     interrupts = <42 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_I2S0>,
>> +                              <&ccu CLK_I2S0>;
>> +                     clock-names = "apb", "mod";
>> +                     resets = <&ccu RST_BUS_I2S0>;
>> +                     dmas = <&dma 3>, <&dma 3>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +                     #sound-dai-cells = <0>;
>> +             };
>> +
>> +             i2s1: i2s@2033000 {
>> +                     compatible = "allwinner,sun20i-d1-i2s",
>> +                                  "allwinner,sun50i-r329-i2s";
>> +                     reg = <0x2033000 0x1000>;
>> +                     interrupts = <43 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_I2S1>,
>> +                              <&ccu CLK_I2S1>;
>> +                     clock-names = "apb", "mod";
>> +                     resets = <&ccu RST_BUS_I2S1>;
>> +                     dmas = <&dma 4>, <&dma 4>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +                     #sound-dai-cells = <0>;
>> +             };
>> +
>> +             i2s2: i2s@2034000 {
>> +                     compatible = "allwinner,sun20i-d1-i2s",
>> +                                  "allwinner,sun50i-r329-i2s";
>> +                     reg = <0x2034000 0x1000>;
>> +                     interrupts = <44 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_I2S2>,
>> +                              <&ccu CLK_I2S2>;
>> +                     clock-names = "apb", "mod";
>> +                     resets = <&ccu RST_BUS_I2S2>;
>> +                     dmas = <&dma 5>, <&dma 5>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +                     #sound-dai-cells = <0>;
>> +             };
>> +
>> +             timer: timer@2050000 {
>> +                     compatible = "allwinner,sun20i-d1-timer",
>> +                                  "allwinner,sun8i-a23-timer";
>> +                     reg = <0x2050000 0xa0>;
>> +                     interrupts = <75 IRQ_TYPE_LEVEL_HIGH>,
>> +                                  <76 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&osc24M>;
>> +             };
>> +
>> +             wdt: watchdog@20500a0 {
>> +                     compatible = "allwinner,sun20i-d1-wdt-reset",
>> +                                  "allwinner,sun20i-d1-wdt";
>> +                     reg = <0x20500a0 0x20>;
>> +                     interrupts = <79 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&osc24M>, <&rtc CLK_OSC32K>;
>> +                     clock-names = "hosc", "losc";
>> +                     status = "reserved";
>> +             };
>> +
>> +             uart0: serial@2500000 {
>> +                     compatible = "snps,dw-apb-uart";
>> +                     reg = <0x2500000 0x400>;
>> +                     reg-io-width = <4>;
>> +                     reg-shift = <2>;
>> +                     interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_UART0>;
>> +                     resets = <&ccu RST_BUS_UART0>;
>> +                     dmas = <&dma 14>, <&dma 14>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart1: serial@2500400 {
>> +                     compatible = "snps,dw-apb-uart";
>> +                     reg = <0x2500400 0x400>;
>> +                     reg-io-width = <4>;
>> +                     reg-shift = <2>;
>> +                     interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_UART1>;
>> +                     resets = <&ccu RST_BUS_UART1>;
>> +                     dmas = <&dma 15>, <&dma 15>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart2: serial@2500800 {
>> +                     compatible = "snps,dw-apb-uart";
>> +                     reg = <0x2500800 0x400>;
>> +                     reg-io-width = <4>;
>> +                     reg-shift = <2>;
>> +                     interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_UART2>;
>> +                     resets = <&ccu RST_BUS_UART2>;
>> +                     dmas = <&dma 16>, <&dma 16>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart3: serial@2500c00 {
>> +                     compatible = "snps,dw-apb-uart";
>> +                     reg = <0x2500c00 0x400>;
>> +                     reg-io-width = <4>;
>> +                     reg-shift = <2>;
>> +                     interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_UART3>;
>> +                     resets = <&ccu RST_BUS_UART3>;
>> +                     dmas = <&dma 17>, <&dma 17>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart4: serial@2501000 {
>> +                     compatible = "snps,dw-apb-uart";
>> +                     reg = <0x2501000 0x400>;
>> +                     reg-io-width = <4>;
>> +                     reg-shift = <2>;
>> +                     interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_UART4>;
>> +                     resets = <&ccu RST_BUS_UART4>;
>> +                     dmas = <&dma 18>, <&dma 18>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart5: serial@2501400 {
>> +                     compatible = "snps,dw-apb-uart";
>> +                     reg = <0x2501400 0x400>;
>> +                     reg-io-width = <4>;
>> +                     reg-shift = <2>;
>> +                     interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_UART5>;
>> +                     resets = <&ccu RST_BUS_UART5>;
>> +                     dmas = <&dma 19>, <&dma 19>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +             };
>> +
>> +             i2c0: i2c@2502000 {
>> +                     compatible = "allwinner,sun20i-d1-i2c",
>> +                                  "allwinner,sun8i-v536-i2c",
>> +                                  "allwinner,sun6i-a31-i2c";
>> +                     reg = <0x2502000 0x400>;
>> +                     interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_I2C0>;
>> +                     resets = <&ccu RST_BUS_I2C0>;
>> +                     dmas = <&dma 43>, <&dma 43>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +             };
>> +
>> +             i2c1: i2c@2502400 {
>> +                     compatible = "allwinner,sun20i-d1-i2c",
>> +                                  "allwinner,sun8i-v536-i2c",
>> +                                  "allwinner,sun6i-a31-i2c";
>> +                     reg = <0x2502400 0x400>;
>> +                     interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_I2C1>;
>> +                     resets = <&ccu RST_BUS_I2C1>;
>> +                     dmas = <&dma 44>, <&dma 44>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +             };
>> +
>> +             i2c2: i2c@2502800 {
>> +                     compatible = "allwinner,sun20i-d1-i2c",
>> +                                  "allwinner,sun8i-v536-i2c",
>> +                                  "allwinner,sun6i-a31-i2c";
>> +                     reg = <0x2502800 0x400>;
>> +                     interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_I2C2>;
>> +                     resets = <&ccu RST_BUS_I2C2>;
>> +                     dmas = <&dma 45>, <&dma 45>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +             };
>> +
>> +             i2c3: i2c@2502c00 {
>> +                     compatible = "allwinner,sun20i-d1-i2c",
>> +                                  "allwinner,sun8i-v536-i2c",
>> +                                  "allwinner,sun6i-a31-i2c";
>> +                     reg = <0x2502c00 0x400>;
>> +                     interrupts = <28 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_I2C3>;
>> +                     resets = <&ccu RST_BUS_I2C3>;
>> +                     dmas = <&dma 46>, <&dma 46>;
>> +                     dma-names = "rx", "tx";
>> +                     status = "disabled";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +             };
>> +
>> +             syscon: syscon@3000000 {
>> +                     compatible = "allwinner,sun20i-d1-system-control";
>> +                     reg = <0x3000000 0x1000>;
>> +                     ranges;
>> +                     #address-cells = <1>;
>> +                     #size-cells = <1>;
>> +
>> +                     regulators@3000150 {
>> +                             compatible = "allwinner,sun20i-d1-system-ldos";
>> +                             reg = <0x3000150 0x4>;
>> +
>> +                             reg_ldoa: ldoa {
>> +                             };
>> +
>> +                             reg_ldob: ldob {
>> +                             };
>> +                     };
>> +             };
>> +
>> +             dma: dma-controller@3002000 {
>> +                     compatible = "allwinner,sun20i-d1-dma";
>> +                     reg = <0x3002000 0x1000>;
>> +                     interrupts = <66 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_DMA>, <&ccu CLK_MBUS_DMA>;
>> +                     clock-names = "bus", "mbus";
>> +                     resets = <&ccu RST_BUS_DMA>;
>> +                     dma-channels = <16>;
>> +                     dma-requests = <48>;
>> +                     #dma-cells = <1>;
>> +             };
>> +
>> +             sid: efuse@3006000 {
>> +                     compatible = "allwinner,sun20i-d1-sid";
>> +                     reg = <0x3006000 0x1000>;
>> +                     #address-cells = <1>;
>> +                     #size-cells = <1>;
>> +
>> +                     ths_calib: ths-calib@14 {
>> +                             reg = <0x14 0x4>;
>> +                     };
>> +
>> +                     bg_trim: bg-trim@28 {
>> +                             reg = <0x28 0x4>;
>> +                             bits = <16 8>;
>> +                     };
>> +             };
>> +
>> +             mbus: dram-controller@3102000 {
>> +                     compatible = "allwinner,sun20i-d1-mbus";
>> +                     reg = <0x3102000 0x1000>,
>> +                           <0x3103000 0x1000>;
>> +                     reg-names = "mbus", "dram";
>> +                     interrupts = <59 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_MBUS>,
>> +                              <&ccu CLK_DRAM>,
>> +                              <&ccu CLK_BUS_DRAM>;
>> +                     clock-names = "mbus", "dram", "bus";
>> +                     dma-ranges = <0 0x40000000 0x80000000>;
>> +                     #address-cells = <1>;
>> +                     #size-cells = <1>;
>> +                     #interconnect-cells = <1>;
>> +             };
>> +
>> +             mmc0: mmc@4020000 {
>> +                     compatible = "allwinner,sun20i-d1-mmc";
>> +                     reg = <0x4020000 0x1000>;
>> +                     interrupts = <56 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_MMC0>, <&ccu CLK_MMC0>;
>> +                     clock-names = "ahb", "mmc";
>> +                     resets = <&ccu RST_BUS_MMC0>;
>> +                     reset-names = "ahb";
>> +                     cap-sd-highspeed;
>> +                     max-frequency = <150000000>;
>> +                     no-mmc;
>> +                     status = "disabled";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +             };
>> +
>> +             mmc1: mmc@4021000 {
>> +                     compatible = "allwinner,sun20i-d1-mmc";
>> +                     reg = <0x4021000 0x1000>;
>> +                     interrupts = <57 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_MMC1>, <&ccu CLK_MMC1>;
>> +                     clock-names = "ahb", "mmc";
>> +                     resets = <&ccu RST_BUS_MMC1>;
>> +                     reset-names = "ahb";
>> +                     cap-sd-highspeed;
>> +                     max-frequency = <150000000>;
>> +                     no-mmc;
>> +                     status = "disabled";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +             };
>> +
>> +             mmc2: mmc@4022000 {
>> +                     compatible = "allwinner,sun20i-d1-emmc",
>> +                                  "allwinner,sun50i-a100-emmc";
>> +                     reg = <0x4022000 0x1000>;
>> +                     interrupts = <58 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_MMC2>, <&ccu CLK_MMC2>;
>> +                     clock-names = "ahb", "mmc";
>> +                     resets = <&ccu RST_BUS_MMC2>;
>> +                     reset-names = "ahb";
>> +                     cap-mmc-highspeed;
>> +                     max-frequency = <150000000>;
>> +                     mmc-ddr-1_8v;
>> +                     mmc-ddr-3_3v;
>> +                     no-sd;
>> +                     no-sdio;
>> +                     status = "disabled";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +             };
>> +
>> +             usb_otg: usb@4100000 {
>> +                     compatible = "allwinner,sun20i-d1-musb",
>> +                                  "allwinner,sun8i-a33-musb";
>> +                     reg = <0x4100000 0x400>;
>> +                     interrupts = <45 IRQ_TYPE_LEVEL_HIGH>;
>> +                     interrupt-names = "mc";
>> +                     clocks = <&ccu CLK_BUS_OTG>;
>> +                     resets = <&ccu RST_BUS_OTG>;
>> +                     extcon = <&usbphy 0>;
>> +                     phys = <&usbphy 0>;
>> +                     phy-names = "usb";
>> +                     status = "disabled";
>> +             };
>> +
>> +             usbphy: phy@4100400 {
>> +                     compatible = "allwinner,sun20i-d1-usb-phy";
>> +                     reg = <0x4100400 0x100>,
>> +                           <0x4101800 0x100>,
>> +                           <0x4200800 0x100>;
>> +                     reg-names = "phy_ctrl",
>> +                                 "pmu0",
>> +                                 "pmu1";
>> +                     clocks = <&osc24M>,
>> +                              <&osc24M>;
>> +                     clock-names = "usb0_phy",
>> +                                   "usb1_phy";
>> +                     resets = <&ccu RST_USB_PHY0>,
>> +                              <&ccu RST_USB_PHY1>;
>> +                     reset-names = "usb0_reset",
>> +                                   "usb1_reset";
>> +                     status = "disabled";
>> +                     #phy-cells = <1>;
>> +             };
>> +
>> +             ehci0: usb@4101000 {
>> +                     compatible = "allwinner,sun20i-d1-ehci",
>> +                                  "generic-ehci";
>> +                     reg = <0x4101000 0x100>;
>> +                     interrupts = <46 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_OHCI0>,
>> +                              <&ccu CLK_BUS_EHCI0>,
>> +                              <&ccu CLK_USB_OHCI0>;
>> +                     resets = <&ccu RST_BUS_OHCI0>,
>> +                              <&ccu RST_BUS_EHCI0>;
>> +                     phys = <&usbphy 0>;
>> +                     phy-names = "usb";
>> +                     status = "disabled";
>> +             };
>> +
>> +             ohci0: usb@4101400 {
>> +                     compatible = "allwinner,sun20i-d1-ohci",
>> +                                  "generic-ohci";
>> +                     reg = <0x4101400 0x100>;
>> +                     interrupts = <47 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_OHCI0>,
>> +                              <&ccu CLK_USB_OHCI0>;
>> +                     resets = <&ccu RST_BUS_OHCI0>;
>> +                     phys = <&usbphy 0>;
>> +                     phy-names = "usb";
>> +                     status = "disabled";
>> +             };
>> +
>> +             ehci1: usb@4200000 {
>> +                     compatible = "allwinner,sun20i-d1-ehci",
>> +                                  "generic-ehci";
>> +                     reg = <0x4200000 0x100>;
>> +                     interrupts = <49 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_OHCI1>,
>> +                              <&ccu CLK_BUS_EHCI1>,
>> +                              <&ccu CLK_USB_OHCI1>;
>> +                     resets = <&ccu RST_BUS_OHCI1>,
>> +                              <&ccu RST_BUS_EHCI1>;
>> +                     phys = <&usbphy 1>;
>> +                     phy-names = "usb";
>> +                     status = "disabled";
>> +             };
>> +
>> +             ohci1: usb@4200400 {
>> +                     compatible = "allwinner,sun20i-d1-ohci",
>> +                                  "generic-ohci";
>> +                     reg = <0x4200400 0x100>;
>> +                     interrupts = <50 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_OHCI1>,
>> +                              <&ccu CLK_USB_OHCI1>;
>> +                     resets = <&ccu RST_BUS_OHCI1>;
>> +                     phys = <&usbphy 1>;
>> +                     phy-names = "usb";
>> +                     status = "disabled";
>> +             };
>> +
>> +             emac: ethernet@4500000 {
>> +                     compatible = "allwinner,sun20i-d1-emac",
>> +                                  "allwinner,sun50i-a64-emac";
>> +                     reg = <0x4500000 0x10000>;
>> +                     interrupts = <62 IRQ_TYPE_LEVEL_HIGH>;
>> +                     interrupt-names = "macirq";
>> +                     clocks = <&ccu CLK_BUS_EMAC>;
>> +                     clock-names = "stmmaceth";
>> +                     resets = <&ccu RST_BUS_EMAC>;
>> +                     reset-names = "stmmaceth";
>> +                     syscon = <&syscon>;
>> +                     status = "disabled";
>> +
>> +                     mdio: mdio {
>> +                             compatible = "snps,dwmac-mdio";
>> +                             #address-cells = <1>;
>> +                             #size-cells = <0>;
>> +                     };
>> +             };
>> +
>> +             display_clocks: clock-controller@5000000 {
>> +                     compatible = "allwinner,sun20i-d1-de2-clk",
>> +                                  "allwinner,sun50i-h5-de2-clk";
>> +                     reg = <0x5000000 0x10000>;
>> +                     clocks = <&ccu CLK_BUS_DE>, <&ccu CLK_DE>;
>> +                     clock-names = "bus", "mod";
>> +                     resets = <&ccu RST_BUS_DE>;
>> +                     #clock-cells = <1>;
>> +                     #reset-cells = <1>;
>> +             };
>> +
>> +             mixer0: mixer@5100000 {
>> +                     compatible = "allwinner,sun20i-d1-de2-mixer-0";
>> +                     reg = <0x5100000 0x100000>;
>> +                     clocks = <&display_clocks CLK_BUS_MIXER0>,
>> +                              <&display_clocks CLK_MIXER0>;
>> +                     clock-names = "bus", "mod";
>> +                     resets = <&display_clocks RST_MIXER0>;
>> +
>> +                     ports {
>> +                             #address-cells = <1>;
>> +                             #size-cells = <0>;
>> +
>> +                             mixer0_out: port@1 {
>> +                                     reg = <1>;
>> +
>> +                                     mixer0_out_tcon_top_mixer0: endpoint {
>> +                                             remote-endpoint = <&tcon_top_mixer0_in_mixer0>;
>> +                                     };
>> +                             };
>> +                     };
>> +             };
>> +
>> +             mixer1: mixer@5200000 {
>> +                     compatible = "allwinner,sun20i-d1-de2-mixer-1";
>> +                     reg = <0x5200000 0x100000>;
>> +                     clocks = <&display_clocks CLK_BUS_MIXER1>,
>> +                              <&display_clocks CLK_MIXER1>;
>> +                     clock-names = "bus", "mod";
>> +                     resets = <&display_clocks RST_MIXER1>;
>> +
>> +                     ports {
>> +                             #address-cells = <1>;
>> +                             #size-cells = <0>;
>> +
>> +                             mixer1_out: port@1 {
>> +                                     reg = <1>;
>> +
>> +                                     mixer1_out_tcon_top_mixer1: endpoint {
>> +                                             remote-endpoint = <&tcon_top_mixer1_in_mixer1>;
>> +                                     };
>> +                             };
>> +                     };
>> +             };
>> +
>> +             tcon_top: tcon-top@5460000 {
>> +                     compatible = "allwinner,sun20i-d1-tcon-top";
>> +                     reg = <0x5460000 0x1000>;
>> +                     clocks = <&ccu CLK_BUS_DPSS_TOP>,
>> +                              <&ccu CLK_TCON_TV>,
>> +                              <&ccu CLK_TVE>,
>> +                              <&ccu CLK_MIPI_DSI>;
>> +                     clock-names = "bus", "tcon-tv0", "tve0", "dsi";
>> +                     clock-output-names = "tcon-top-tv0", "tcon-top-dsi";
>> +                     resets = <&ccu RST_BUS_DPSS_TOP>;
>> +                     #clock-cells = <1>;
>> +
>> +                     ports {
>> +                             #address-cells = <1>;
>> +                             #size-cells = <0>;
>> +
>> +                             tcon_top_mixer0_in: port@0 {
>> +                                     reg = <0>;
>> +                                     #address-cells = <1>;
>> +                                     #size-cells = <0>;
>> +
>> +                                     tcon_top_mixer0_in_mixer0: endpoint@0 {
>> +                                             reg = <0>;
>> +                                             remote-endpoint = <&mixer0_out_tcon_top_mixer0>;
>> +                                     };
>> +                             };
>> +
>> +                             tcon_top_mixer0_out: port@1 {
>> +                                     reg = <1>;
>> +                                     #address-cells = <1>;
>> +                                     #size-cells = <0>;
>> +
>> +                                     tcon_top_mixer0_out_tcon_lcd0: endpoint@0 {
>> +                                             reg = <0>;
>> +                                             remote-endpoint = <&tcon_lcd0_in_tcon_top_mixer0>;
>> +                                     };
>> +
>> +                                     tcon_top_mixer0_out_tcon_tv0: endpoint@2 {
>> +                                             reg = <2>;
>> +                                             remote-endpoint = <&tcon_tv0_in_tcon_top_mixer0>;
>> +                                     };
>> +                             };
>> +
>> +                             tcon_top_mixer1_in: port@2 {
>> +                                     reg = <2>;
>> +                                     #address-cells = <1>;
>> +                                     #size-cells = <0>;
>> +
>> +                                     tcon_top_mixer1_in_mixer1: endpoint@1 {
>> +                                             reg = <1>;
>> +                                             remote-endpoint = <&mixer1_out_tcon_top_mixer1>;
>> +                                     };
>> +                             };
>> +
>> +                             tcon_top_mixer1_out: port@3 {
>> +                                     reg = <3>;
>> +                                     #address-cells = <1>;
>> +                                     #size-cells = <0>;
>> +
>> +                                     tcon_top_mixer1_out_tcon_lcd0: endpoint@0 {
>> +                                             reg = <0>;
>> +                                             remote-endpoint = <&tcon_lcd0_in_tcon_top_mixer1>;
>> +                                     };
>> +
>> +                                     tcon_top_mixer1_out_tcon_tv0: endpoint@2 {
>> +                                             reg = <2>;
>> +                                             remote-endpoint = <&tcon_tv0_in_tcon_top_mixer1>;
>> +                                     };
>> +                             };
>> +
>> +                             tcon_top_hdmi_in: port@4 {
>> +                                     reg = <4>;
>> +
>> +                                     tcon_top_hdmi_in_tcon_tv0: endpoint {
>> +                                             remote-endpoint = <&tcon_tv0_out_tcon_top_hdmi>;
>> +                                     };
>> +                             };
>> +
>> +                             tcon_top_hdmi_out: port@5 {
>> +                                     reg = <5>;
>> +                             };
>> +                     };
>> +             };
>> +
>> +             tcon_lcd0: lcd-controller@5461000 {
>> +                     compatible = "allwinner,sun20i-d1-tcon-lcd";
>> +                     reg = <0x5461000 0x1000>;
>> +                     interrupts = <106 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_TCON_LCD0>,
>> +                              <&ccu CLK_TCON_LCD0>;
>> +                     clock-names = "ahb", "tcon-ch0";
>> +                     clock-output-names = "tcon-pixel-clock";
>> +                     resets = <&ccu RST_BUS_TCON_LCD0>,
>> +                              <&ccu RST_BUS_LVDS0>;
>> +                     reset-names = "lcd", "lvds";
>> +                     #clock-cells = <0>;
>> +
>> +                     ports {
>> +                             #address-cells = <1>;
>> +                             #size-cells = <0>;
>> +
>> +                             tcon_lcd0_in: port@0 {
>> +                                     reg = <0>;
>> +                                     #address-cells = <1>;
>> +                                     #size-cells = <0>;
>> +
>> +                                     tcon_lcd0_in_tcon_top_mixer0: endpoint@0 {
>> +                                             reg = <0>;
>> +                                             remote-endpoint = <&tcon_top_mixer0_out_tcon_lcd0>;
>> +                                     };
>> +
>> +                                     tcon_lcd0_in_tcon_top_mixer1: endpoint@1 {
>> +                                             reg = <1>;
>> +                                             remote-endpoint = <&tcon_top_mixer1_out_tcon_lcd0>;
>> +                                     };
>> +                             };
>> +
>> +                             tcon_lcd0_out: port@1 {
>> +                                     reg = <1>;
>> +                             };
>> +                     };
>> +             };
>> +
>> +             tcon_tv0: lcd-controller@5470000 {
>> +                     compatible = "allwinner,sun20i-d1-tcon-tv";
>> +                     reg = <0x5470000 0x1000>;
>> +                     interrupts = <107 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&ccu CLK_BUS_TCON_TV>,
>> +                              <&tcon_top CLK_TCON_TOP_TV0>;
>> +                     clock-names = "ahb", "tcon-ch1";
>> +                     resets = <&ccu RST_BUS_TCON_TV>;
>> +                     reset-names = "lcd";
>> +
>> +                     ports {
>> +                             #address-cells = <1>;
>> +                             #size-cells = <0>;
>> +
>> +                             tcon_tv0_in: port@0 {
>> +                                     reg = <0>;
>> +                                     #address-cells = <1>;
>> +                                     #size-cells = <0>;
>> +
>> +                                     tcon_tv0_in_tcon_top_mixer0: endpoint@0 {
>> +                                             reg = <0>;
>> +                                             remote-endpoint = <&tcon_top_mixer0_out_tcon_tv0>;
>> +                                     };
>> +
>> +                                     tcon_tv0_in_tcon_top_mixer1: endpoint@1 {
>> +                                             reg = <1>;
>> +                                             remote-endpoint = <&tcon_top_mixer1_out_tcon_tv0>;
>> +                                     };
>> +                             };
>> +
>> +                             tcon_tv0_out: port@1 {
>> +                                     reg = <1>;
>> +
>> +                                     tcon_tv0_out_tcon_top_hdmi: endpoint {
>> +                                             remote-endpoint = <&tcon_top_hdmi_in_tcon_tv0>;
>> +                                     };
>> +                             };
>> +                     };
>> +             };
>> +
>> +             riscv_wdt: watchdog@6011000 {
>> +                     compatible = "allwinner,sun20i-d1-wdt";
>> +                     reg = <0x6011000 0x20>;
>> +                     interrupts = <147 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&osc24M>, <&rtc CLK_OSC32K>;
>> +                     clock-names = "hosc", "losc";
>> +             };
>> +
>> +             r_ccu: clock-controller@7010000 {
>> +                     compatible = "allwinner,sun20i-d1-r-ccu";
>> +                     reg = <0x7010000 0x400>;
>> +                     clocks = <&osc24M>,
>> +                              <&rtc CLK_OSC32K>,
>> +                              <&rtc CLK_IOSC>,
>> +                              <&ccu CLK_PLL_PERIPH0_DIV3>;
>> +                     clock-names = "hosc", "losc", "iosc", "pll-periph";
>> +                     #clock-cells = <1>;
>> +                     #reset-cells = <1>;
>> +             };
>> +
>> +             rtc: rtc@7090000 {
>> +                     compatible = "allwinner,sun20i-d1-rtc",
>> +                                  "allwinner,sun50i-r329-rtc";
>> +                     reg = <0x7090000 0x400>;
>> +                     interrupts = <160 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&r_ccu CLK_BUS_R_RTC>,
>> +                              <&osc24M>,
>> +                              <&r_ccu CLK_R_AHB>;
>> +                     clock-names = "bus", "hosc", "ahb";
>> +                     #clock-cells = <1>;
>> +             };
>> +
>> +             plic: interrupt-controller@10000000 {
>> +                     compatible = "allwinner,sun20i-d1-plic",
>> +                                  "thead,c900-plic";
>> +                     reg = <0x10000000 0x4000000>;
>> +                     interrupts-extended = <&cpu0_intc 11>,
>> +                                           <&cpu0_intc 9>;
>> +                     interrupt-controller;
>> +                     riscv,ndev = <176>;
>> +                     #address-cells = <0>;
>> +                     #interrupt-cells = <2>;
>> +             };
>> +     };
>> +};
>