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Message-ID: <CANLsYkyKrtyMicsNs2CDd4=GfrQJOPJkAqSUiTB=5hRs3+d=tQ@mail.gmail.com>
Date: Mon, 11 May 2015 13:21:13 -0600
From: Mathieu Poirier <mathieu.poirier@...aro.org>
To: "Ivan T. Ivanov" <ivan.ivanov@...aro.org>
Cc: Kumar Gala <galak@...eaurora.org>,
Pratik Patel <pratikp@...eaurora.org>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v3] arm64: dts: qcom: Add msm8916 CoreSight components
On 11 May 2015 at 02:31, Ivan T. Ivanov <ivan.ivanov@...aro.org> wrote:
> Add initial set of CoreSight components found on Qualcomm's 8x16 chipset.
>
> Signed-off-by: Ivan T. Ivanov <ivan.ivanov@...aro.org>
> ---
>
> Changes since v2 [1]:
> * Added "1x" to "qcom,coresight-replicator" compatible string, to match what
> devicetree bindings documentations says.
>
> [1] http://www.spinics.net/lists/devicetree/msg77768.html
>
> arch/arm64/boot/dts/qcom/msm8916-coresight.dtsi | 254 ++++++++++++++++++++++++
> 1 file changed, 254 insertions(+)
> create mode 100644 arch/arm64/boot/dts/qcom/msm8916-coresight.dtsi
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8916-coresight.dtsi b/arch/arm64/boot/dts/qcom/msm8916-coresight.dtsi
> new file mode 100644
> index 0000000..900f1f4
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/msm8916-coresight.dtsi
> @@ -0,0 +1,254 @@
> +/*
> + * Copyright (c) 2013 - 2015, The Linux Foundation. All rights reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 and
> + * only version 2 as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +&soc {
> +
> + tpiu@...000 {
> + compatible = "arm,coresight-tpiu", "arm,primecell";
> + reg = <0x820000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + port {
> + tpiu_in: endpoint {
> + slave-mode;
> + remote-endpoint = <&replicator_out1>;
> + };
> + };
> + };
> +
> + funnel@...000 {
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0x821000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + /*
> + * Not described input ports:
> + * 0 - connected to Resource and Power Manger CPU ETM
> + * 1 - not-connected
> + * 2 - connected to Modem CPU ETM
> + * 3 - not-connected
> + * 5 - not-connected
> + * 6 - connected trought funnel to Wireless CPU ETM
> + * 7 - connected to STM component
> + */
> + port@4 {
> + reg = <4>;
> + funnel0_in4: endpoint {
> + slave-mode;
> + remote-endpoint = <&funnel1_out>;
> + };
> + };
> + port@8 {
> + reg = <0>;
> + funnel0_out: endpoint {
> + remote-endpoint = <&etf_in>;
> + };
> + };
> + };
> + };
> +
> + replicator@...000 {
> + compatible = "qcom,coresight-replicator1x", "arm,primecell";
> + reg = <0x824000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + replicator_out0: endpoint {
> + remote-endpoint = <&etr_in>;
> + };
> + };
> + port@1 {
> + reg = <1>;
> + replicator_out1: endpoint {
> + remote-endpoint = <&tpiu_in>;
> + };
> + };
> + port@2 {
> + reg = <0>;
> + replicator_in: endpoint {
> + slave-mode;
> + remote-endpoint = <&etf_out>;
> + };
> + };
> + };
> + };
> +
> + etf@...000 {
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0x825000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + etf_out: endpoint {
> + slave-mode;
> + remote-endpoint = <&funnel0_out>;
> + };
> + };
> + port@1 {
> + reg = <0>;
> + etf_in: endpoint {
> + remote-endpoint = <&replicator_in>;
> + };
> + };
> + };
> + };
> +
> + etr@...000 {
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0x826000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + port {
> + etr_in: endpoint {
> + slave-mode;
> + remote-endpoint = <&replicator_out0>;
> + };
> + };
> + };
> +
> + funnel@...000 { /* APSS funnel only 4 inputs are used */
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0x841000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + funnel1_in0: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm0_out>;
> + };
> + };
> + port@1 {
> + reg = <1>;
> + funnel1_in1: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm1_out>;
> + };
> + };
> + port@2 {
> + reg = <2>;
> + funnel1_in2: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm2_out>;
> + };
> + };
> + port@3 {
> + reg = <3>;
> + funnel1_in3: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm3_out>;
> + };
> + };
> + port@4 {
> + reg = <0>;
> + funnel1_out: endpoint {
> + remote-endpoint = <&funnel0_in4>;
> + };
> + };
> + };
> + };
> +
> + etm@...000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0x85c000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + cpu = <&CPU0>;
> +
> + port {
> + etm0_out: endpoint {
> + remote-endpoint = <&funnel1_in0>;
> + };
> + };
> + };
> +
> + etm@...000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0x85d000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + cpu = <&CPU1>;
> +
> + port {
> + etm1_out: endpoint {
> + remote-endpoint = <&funnel1_in1>;
> + };
> + };
> + };
> +
> + etm@...000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0x85e000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + cpu = <&CPU2>;
> +
> + port {
> + etm2_out: endpoint {
> + remote-endpoint = <&funnel1_in2>;
> + };
> + };
> + };
> +
> + etm@...000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0x85f000 0x1000>;
> +
> + clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> + clock-names = "apb_pclk", "atclk";
> +
> + cpu = <&CPU3>;
> +
> + port {
> + etm3_out: endpoint {
> + remote-endpoint = <&funnel1_in3>;
> + };
> + };
> + };
> +};
> --
> 1.9.1
>
Kumar, I'm happy with this DT specification for Coresight. Since I'm
taking the driver it would likely make more sense for this to go
through my tree. Could you please have a look and give me your ack?
Thanks,
Mathieu
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