Hi Pengcheng,

[ + Mathieu ]

On Fri, Apr 07, 2017 at 04:06:58PM +0800, Li Pengcheng wrote:
> Add coresight DT nodes for hikey board.
> 
> Signed-off-by: Li Pengcheng <[email protected]>
> Signed-off-by: Li Zhong <[email protected]>
> ---
>  .../arm64/boot/dts/hisilicon/hi6220-coresight.dtsi | 318 
> +++++++++++++++++++++
>  arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts     |   1 +
>  2 files changed, 319 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/hisilicon/hi6220-coresight.dtsi
> 
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-coresight.dtsi 
> b/arch/arm64/boot/dts/hisilicon/hi6220-coresight.dtsi
> new file mode 100644
> index 0000000..a523e43
> --- /dev/null
> +++ b/arch/arm64/boot/dts/hisilicon/hi6220-coresight.dtsi
> @@ -0,0 +1,318 @@
> +/*
> + * Hisilicon Ltd. Hi6220 SoC
> + *
> + * Copyright (C) 2015-2016 Hisilicon Ltd.
> + * Author: lipengcheng  <[email protected]>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * publishhed by the Free Software Foundation.
> + */
> +/ {
> +     amba {

Here I'm curious if can use the similiar implementation with Juno?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/arm/juno-cs-r1r2.dtsi?id=refs/tags/v4.11-rc5

So finally can include this file into hi6220.dtsi 'soc' section; this
can reflect the hardware topology more clearly:

        soc {
                [...]

                #include "hi6220-coresight.dtsi"
        }

> +             /* A53 cluster0 internal coresight */
> +             #address-cells = <2>;
> +             #size-cells = <2>;
> +             compatible = "arm,amba-bus";

Usually the compatible string should be documented in
Documentation/devicetree/bindings/, so please drop it.

I think "#address-cells" and "#size-cells" also can remove. This is
defined by its parent node.

> +             ranges;
> +             etm@0,f659c000 {

Change to etm@f659c000?

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf659c000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu0>;
> +                     port {
> +                             etm0_out_port: endpoint {
> +                                     remote-endpoint = <&funnel0_in_port0>;
> +                             };
> +                     };
> +             };
> +
> +             etm@1,f659d000 {

Same with above.

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf659d000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu1>;
> +                     port {
> +                             etm1_out_port: endpoint {
> +                                     remote-endpoint = <&funnel0_in_port1>;
> +                             };
> +                     };
> +
> +             };
> +
> +             etm@2,f659e000 {

Same with above.

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf659e000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu2>;
> +                     port {
> +                             etm2_out_port: endpoint {
> +                                     remote-endpoint = <&funnel0_in_port2>;
> +                             };
> +                     };
> +             };
> +
> +             etm@3,f659f000 {

Same with above.

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf659f000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu3>;
> +                     port {
> +                             etm3_out_port: endpoint {
> +                                     remote-endpoint = <&funnel0_in_port3>;
> +                             };
> +                     };
> +             };
> +
> +             /* A53 cluster1 internal coresight */
> +             etm@4,f65dc000 {

Same with above.

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf65dc000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu4>;
> +                     port {
> +                             etm4_out_port: endpoint {
> +                             remote-endpoint = <&funnel0_in_port4>;

Wrong indent.

> +                             };
> +                     };
> +             };
> +
> +             etm@5,f65dd000 {

Same with above.

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf65dd000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu5>;
> +                     port {
> +                             etm5_out_port: endpoint {
> +                             remote-endpoint = <&funnel0_in_port5>;

Wrong indent.

> +                             };
> +                     };
> +             };
> +
> +             etm@6,f65de000 {

Change to etm@f65de000?

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf65de000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu6>;
> +                     port {
> +                             etm6_out_port: endpoint {
> +                                     remote-endpoint = <&funnel0_in_port6>;
> +                             };
> +                     };
> +             };
> +
> +             etm@7,f65df000 {

Same with above.

> +                     compatible = "arm,coresight-etm4x","arm,primecell";
> +                     reg = <0 0xf65df000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     cpu = <&cpu7>;
> +                     port {
> +                             etm7_out_port: endpoint {
> +                                     remote-endpoint = <&funnel0_in_port7>;
> +                             };
> +                     };
> +             };
> +
> +             funnel0:funnel@0,f6501000 {

funnel0@f6501000.

> +                     compatible = "arm,coresight-funnel","arm,primecell";
> +                     reg = <0 0xf6501000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     ports {
> +                             #address-cells = <1>;
> +                             #size-cells = <0>;
> +
> +                             /* funnel output port */
> +                             port@0 {
> +                                     reg = <0>;
> +                                     funnel0_out_port: endpoint {
> +                                             remote-endpoint = 
> <&funnel1_in_port>;
> +                                     };
> +                             };
> +
> +                             /* funnel input ports */
> +                             port@1 {
> +                                     reg = <0>;
> +                                     funnel0_in_port0: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm0_out_port>;
> +                                     };
> +                             };
> +
> +                             port@2 {
> +                                     reg = <1>;
> +                                     funnel0_in_port1: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm1_out_port>;
> +                                     };
> +                             };
> +
> +                             port@3 {
> +                                     reg = <2>;
> +                                     funnel0_in_port2: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm2_out_port>;
> +                                     };
> +                             };
> +
> +                             port@4 {
> +                                     reg = <3>;
> +                                     funnel0_in_port3: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm3_out_port>;
> +                                     };
> +                             };
> +
> +                             port@5 {
> +                                     reg = <4>;
> +                                     funnel0_in_port4: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm4_out_port>;
> +                                     };
> +                             };
> +
> +                             port@6 {
> +                                     reg = <5>;
> +                                     funnel0_in_port5: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm5_out_port>;
> +                                     };
> +                             };
> +
> +                             port@7 {
> +                                     reg = <6>;
> +                                     funnel0_in_port6: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm6_out_port>;
> +                                     };
> +                             };
> +
> +                             port@8 {
> +                                     reg = <7>;
> +                                     funnel0_in_port7: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&etm7_out_port>;
> +                                     };
> +                             };
> +                     };
> +             };
> +
> +             funnel1:funnel@1,f6401000 {

funnel1@f6401000

> +                     compatible = "arm,coresight-funnel","arm,primecell";
> +                     reg = <0 0xf6401000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     ports {
> +                             #address-cells = <1>;
> +                             #size-cells = <0>;
> +                             /* funnel1 output port */
> +                             port@0 {
> +                                     reg = <0>;
> +                                     funnel1_out_port: endpoint {
> +                                             remote-endpoint = 
> <&etf_in_port>;
> +                                     };
> +                             };
> +
> +                             /* funnel1 input port */
> +                             port@1 {
> +                                     reg = <0>;
> +                                     funnel1_in_port: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&funnel0_out_port>;
> +                                     };
> +                             };
> +                     };
> +             };

Extra blank line.

> +             etf:etf@0,f6402000 {
> +                     compatible = "arm,coresight-tmc","arm,primecell";
> +                     reg = <0 0xf6402000 0 0x1000>;
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     ports {
> +                             #address-cells = <1>;
> +                             #size-cells = <0>;
> +                             /* etf input port */
> +                             port@0 {
> +                                     reg = <0>;
> +                                     etf_in_port: endpoint {
> +                                             slave-mode;
> +                                             remote-endpoint = 
> <&funnel1_out_port>;
> +                                     };
> +                             };
> +                             /* etf output port */
> +                             port@1 {
> +                                     reg = <0>;
> +                                     etf_out_port: endpoint {
> +                                             remote-endpoint = 
> <&replicator0_in_port>;
> +                                     };
> +                             };
> +                     };
> +             };
> +
> +             replicator@0{
> +                     compatible = "arm,coresight-replicator";
> +
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     ports {
> +                             #address-cells = <1>;
> +                             #size-cells = <0>;
> +                             /* replicator input port  */
> +                             port@0 {
> +                                     reg = <0>;
> +                                     replicator0_in_port: endpoint{
> +                                     slave-mode;
> +                                     remote-endpoint = <&etf_out_port>;

Wrong indent.

> +                                     };
> +                             };
> +                             /* replicator out port  */
> +                             port@1 {
> +                                     reg = <0>;
> +                                     replicator0_out_port: endpoint {
> +                                             remote-endpoint = 
> <&etr0_in_port>;
> +                                     };
> +                             };
> +                     };
> +             };
> +
> +             etr@0,f6404000 {
> +                     compatible = "arm,coresight-tmc","arm,primecell";
> +                     reg = <0 0xf6404000 0 0x1000>;
> +
> +                     coresight-default-sink;
> +                     clocks = <&sys_ctrl HI6220_CS_ATB>;
> +                     clock-names = "apb_pclk";
> +                     ports {
> +                             #address-cells = <1>;
> +                             #size-cells = <0>;
> +                             /* etr input port  */
> +                             port@0 {
> +                                     etr0_in_port: endpoint{
> +                                     slave-mode;
> +                                     remote-endpoint = 
> <&replicator0_out_port>;

Wrong indent.

> +                                     };
> +                             };
> +                     };
> +             };
> +     };
> +};
> +
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts 
> b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> index dba3c13..fb70c9b 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> @@ -8,6 +8,7 @@
>  /dts-v1/;
>  #include "hi6220.dtsi"
>  #include "hikey-pinctrl.dtsi"
> +#include "hi6220-coresight.dtsi"

Please review upper comments for adding it into 'soc' node.

BTW, it's good to use script ./scripts/checkpatch.pl to check the
patch.

>  #include <dt-bindings/gpio/gpio.h>
>  
>  / {
> -- 
> 2.1.0
> 

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