Re: [PATCH V2 1/3] arm64: dts: Add basic DT to support Spreadtrum's SP9860G

From: Mathieu Poirier
Date: Tue Feb 21 2017 - 11:28:13 EST

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On Tue, Feb 21, 2017 at 02:55:02PM +0800, Chunyan Zhang wrote:
> From: Orson Zhai <orson.zhai@xxxxxxxxxxxxxx>

Hello Chunyan,

>
> SC9860G is a 8 cores of A53 SoC with 4G LTE support SoC from Spreadtrum.
>
> According to regular hierarchy of sprd dts, whale2.dtsi contains SoC
> peripherals IP nodes, sc9860.dtsi contains stuff related to ARM core stuff
> and sp9860g dts is for the board level.
>
> Signed-off-by: Orson Zhai <orson.zhai@xxxxxxxxxxxxxx>
> Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/sprd/Makefile | 3 +-
> arch/arm64/boot/dts/sprd/sc9860.dtsi | 531 ++++++++++++++++++++++++++++++
> arch/arm64/boot/dts/sprd/sp9860g-1h10.dts | 56 ++++
> arch/arm64/boot/dts/sprd/whale2.dtsi | 70 ++++
> 4 files changed, 659 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm64/boot/dts/sprd/sc9860.dtsi
> create mode 100644 arch/arm64/boot/dts/sprd/sp9860g-1h10.dts
> create mode 100644 arch/arm64/boot/dts/sprd/whale2.dtsi
>
> diff --git a/arch/arm64/boot/dts/sprd/Makefile b/arch/arm64/boot/dts/sprd/Makefile
> index b658c5e..f0535e6 100644
> --- a/arch/arm64/boot/dts/sprd/Makefile
> +++ b/arch/arm64/boot/dts/sprd/Makefile
> @@ -1,4 +1,5 @@
> -dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb
> +dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb \
> + sp9860g-1h10.dtb
>
> always := $(dtb-y)
> subdir-y := $(dts-dirs)
> diff --git a/arch/arm64/boot/dts/sprd/sc9860.dtsi b/arch/arm64/boot/dts/sprd/sc9860.dtsi
> new file mode 100644
> index 0000000..73deb4e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/sprd/sc9860.dtsi
> @@ -0,0 +1,531 @@
> +/*
> + * Spreadtrum SP9860 SoC DTS file
> + *
> + * Copyright (C) 2016, Spreadtrum Communications Inc.
> + *
> + * This file is licensed under a dual GPLv2 or X11 license.
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include "whale2.dtsi"
> +
> +/ {
> + cpus {
> + #address-cells = <2>;
> + #size-cells = <0>;
> +
> + cpu-map {
> + cluster0 {
> + core0 {
> + cpu = <&CPU0>;
> + };
> + core1 {
> + cpu = <&CPU1>;
> + };
> + core2 {
> + cpu = <&CPU2>;
> + };
> + core3 {
> + cpu = <&CPU3>;
> + };
> + };
> +
> + cluster1 {
> + core0 {
> + cpu = <&CPU4>;
> + };
> + core1 {
> + cpu = <&CPU5>;
> + };
> + core2 {
> + cpu = <&CPU6>;
> + };
> + core3 {
> + cpu = <&CPU7>;
> + };
> + };
> + };
> +
> + CPU0: cpu@530000 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530000>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU1: cpu@530001 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530001>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU2: cpu@530002 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530002>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU3: cpu@530003 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530003>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU4: cpu@530100 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530100>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU5: cpu@530101 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530101>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU6: cpu@530102 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530102>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU7: cpu@530103 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530103>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> + };
> +
> + idle-states{
> + entry-method = "arm,psci";
> +
> + CORE_PD: core_pd {
> + compatible = "arm,idle-state";
> + entry-latency-us = <1000>;
> + exit-latency-us = <700>;
> + min-residency-us = <2500>;
> + local-timer-stop;
> + arm,psci-suspend-param = <0x00010002>;
> + };
> +
> + CLUSTER_PD: cluster_pd {
> + compatible = "arm,idle-state";
> + entry-latency-us = <1000>;
> + exit-latency-us = <1000>;
> + min-residency-us = <3000>;
> + local-timer-stop;
> + arm,psci-suspend-param = <0x01010003>;
> + };
> + };
> +
> + gic: interrupt-controller@12001000 {
> + compatible = "arm,gic-400";
> + reg = <0 0x12001000 0 0x1000>,
> + <0 0x12002000 0 0x2000>,
> + <0 0x12004000 0 0x2000>,
> + <0 0x12006000 0 0x2000>;
> + #interrupt-cells = <3>;
> + interrupt-controller;
> + interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_HIGH)>;
> + };
> +
> + psci {
> + compatible = "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>;
> + };
> +
> + pmu {
> + compatible = "arm,cortex-a53-pmu", "arm,armv8-pmuv3";
> + interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-affinity = <&CPU0>,
> + <&CPU1>,
> + <&CPU2>,
> + <&CPU3>,
> + <&CPU4>,
> + <&CPU5>,
> + <&CPU6>,
> + <&CPU7>;
> + };
> +
> + soc {
> + soc_funnel: funnel@10001000 {

There is no need for a label ("soc_funnel) before the device name if that
device is not referenced elsewhere in the DTS. The same comment applies to most
of the component listed below.

> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x10001000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + soc_funnel_out_port: endpoint {
> + remote-endpoint = <&etb_in>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + soc_funnel_in_port: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&main_funnel_out_port>;
> + };
> + };
> + };
> + };
> +
> + etb@10003000 {
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0 0x10003000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + port {
> + etb_in: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&soc_funnel_out_port>;
> + };
> + };
> + };
> +
> + cluster0_funnel: funnel@11001000 {
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x11001000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + cluster0_funnel_out_port: endpoint {
> + remote-endpoint =
> + <&cluster0_etf_in>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + cluster0_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm0_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <1>;
> + cluster0_funnel_in_port1: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm1_out>;
> + };
> + };
> +
> + port@3 {
> + reg = <2>;
> + cluster0_funnel_in_port2: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm2_out>;
> + };
> + };
> +
> + port@4 {
> + reg = <4>;
> + cluster0_funnel_in_port3: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm3_out>;
> + };
> + };
> + };
> + };
> +
> + cluster1_funnel: funnel@11002000 {
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x11002000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + cluster1_funnel_out_port: endpoint {
> + remote-endpoint =
> + <&cluster1_etf_in>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + cluster1_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm4_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <1>;
> + cluster1_funnel_in_port1: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm5_out>;
> + };
> + };
> +
> + port@3 {
> + reg = <2>;
> + cluster1_funnel_in_port2: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm6_out>;
> + };
> + };
> +
> + port@4 {
> + reg = <3>;
> + cluster1_funnel_in_port3: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm7_out>;
> + };
> + };
> + };
> + };
> +
> + cluster0_etf: etf@11003000 {
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0 0x11003000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port@0 {
> + cluster0_etf_out: endpoint {
> + remote-endpoint =
> + <&main_funnel_in_port0>;
> + };
> + };
> +
> + port@1 {
> + cluster0_etf_in: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster0_funnel_out_port>;
> + };
> + };
> + };
> +
> + cluster1_etf: etf@11004000 {
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0 0x11004000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port@0 {
> + cluster1_etf_out: endpoint {
> + remote-endpoint =
> + <&main_funnel_in_port1>;
> + };
> + };
> +
> + port@1 {
> + cluster1_etf_in: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster1_funnel_out_port>;
> + };
> + };
> + };

When more than one port is present it is customary to add another level of
imbrication like it is done for funnels above:
"ports {"
port@0 {
...
port@1 {
...
}

The same comment applies to both etf.

> +
> + main_funnel: funnel@11005000 {
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x11005000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + main_funnel_out_port: endpoint {
> + remote-endpoint =
> + <&soc_funnel_in_port>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + main_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster0_etf_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <1>;
> + main_funnel_in_port1: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster1_etf_out>;
> + };
> + };
> + };
> + };
> +
> + etm@11440000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11440000 0 0x1000>;
> + cpu = <&CPU0>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm0_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port0>;
> + };
> + };
> + };
> +
> + etm@11540000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11540000 0 0x1000>;
> + cpu = <&CPU1>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm1_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port1>;
> + };
> + };
> + };
> +
> + etm@11640000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11640000 0 0x1000>;
> + cpu = <&CPU2>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm2_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port2>;
> + };
> + };
> + };
> +
> + etm@11740000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11740000 0 0x1000>;
> + cpu = <&CPU3>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm3_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port3>;
> + };
> + };
> + };
> +
> + etm@11840000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11840000 0 0x1000>;
> + cpu = <&CPU4>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm4_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port0>;
> + };
> + };
> + };
> +
> + etm@11940000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11940000 0 0x1000>;
> + cpu = <&CPU5>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm5_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port1>;
> + };
> + };
> + };
> +
> + etm@11a40000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11a40000 0 0x1000>;
> + cpu = <&CPU6>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm6_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port2>;
> + };
> + };
> + };
> +
> + etm@11b40000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11b40000 0 0x1000>;
> + cpu = <&CPU7>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm7_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port3>;
> + };
> + };
> + };
> + };
> +};
> diff --git a/arch/arm64/boot/dts/sprd/sp9860g-1h10.dts b/arch/arm64/boot/dts/sprd/sp9860g-1h10.dts
> new file mode 100644
> index 0000000..5faa452
> --- /dev/null
> +++ b/arch/arm64/boot/dts/sprd/sp9860g-1h10.dts
> @@ -0,0 +1,56 @@
> +/*
> + * Spreadtrum SP9860g board DTS file
> + *
> + * Copyright (C) 2017, Spreadtrum Communications Inc.
> + *
> + * This file is licensed under a dual GPLv2 or X11 license.
> + */
> +
> +/dts-v1/;
> +
> +#include "sc9860.dtsi"
> +
> +/ {
> + model = "Spreadtrum SP9860G 3GFHD Board";
> +
> + compatible = "sprd,sp9860g-1h10", "sprd,sc9860";
> +
> + aliases {
> + serial0 = &uart0; /* for Bluetooth */
> + serial1 = &uart1; /* UART console */
> + serial2 = &uart2; /* Reserved */
> + serial3 = &uart3; /* for GPS */
> + };
> +
> + memory{
> + device_type = "memory";
> + reg = <0x0 0x80000000 0 0x60000000>,
> + <0x1 0x80000000 0 0x60000000>;
> + };
> +
> + chosen {
> + stdout-path = "serial1:115200n8";
> + };
> +
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> + };
> +};
> +
> +&uart0 {
> + status = "okay";
> +};
> +
> +&uart1 {
> + status = "okay";
> +};
> +
> +&uart2 {
> + status = "okay";
> +};
> +
> +&uart3 {
> + status = "okay";
> +};
> diff --git a/arch/arm64/boot/dts/sprd/whale2.dtsi b/arch/arm64/boot/dts/sprd/whale2.dtsi
> new file mode 100644
> index 0000000..64f06d9
> --- /dev/null
> +++ b/arch/arm64/boot/dts/sprd/whale2.dtsi
> @@ -0,0 +1,70 @@
> +/*
> + * Spreadtrum Whale2 SoC platform peripherals DTS file
> + *
> + * Copyright (C) 2016, Spreadtrum Communications Inc.
> + *
> + * This file is licensed under a dual GPLv2 or X11 license.
> + */
> +
> +/ {
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + soc: soc {
> + compatible = "simple-bus";
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + ap-apb {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x0 0x70000000 0x10000000>;
> +
> + uart0: serial@70000000 {
> + compatible = "sprd,sc9838-uart",
> + "sprd,sc9836-uart";
> + reg = <0x000000 0x100>;
> + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + status = "disabled";
> + };
> +
> + uart1: serial@70100000 {
> + compatible = "sprd,sc9838-uart",
> + "sprd,sc9836-uart";
> + reg = <0x100000 0x100>;
> + interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + status = "disabled";
> + };
> +
> + uart2: serial@70200000 {
> + compatible = "sprd,sc9838-uart",
> + "sprd,sc9836-uart";
> + reg = <0x200000 0x100>;
> + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + status = "disabled";
> + };
> +
> + uart3: serial@70300000 {
> + compatible = "sprd,sc9838-uart",
> + "sprd,sc9836-uart";
> + reg = <0x300000 0x100>;
> + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + status = "disabled";
> + };
> + };
> +
> + ext_26m: ext-26m {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <26000000>;
> + clock-output-names = "ext_26m";
> + };
> + };
> +};
> --
> 2.7.4
>
>
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