linux-kernel - [PATCH V4 10/10] arm64: dts: qcom: Enable Q6v5 WCSS for ipq8074 SoC

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Message-Id: <1576685146-17135-11-git-send-email-gokulsri@codeaurora.org>
Date:   Wed, 18 Dec 2019 21:35:46 +0530
From:   Gokul Sriram Palanisamy <gokulsri@...eaurora.org>
To:     gokulsri@...eaurora.org, sboyd@...nel.org, agross@...nel.org,
        bjorn.andersson@...aro.org, david.brown@...aro.org,
        devicetree@...r.kernel.org, jassisinghbrar@...il.com,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        mark.rutland@....com, mturquette@...libre.com, ohad@...ery.com,
        robh+dt@...nel.org, sricharan@...eaurora.org,
        nprakash@...eaurora.org
Subject: [PATCH V4 10/10] arm64: dts: qcom: Enable Q6v5 WCSS for ipq8074 SoC

Enable remoteproc WCSS PIL driver with glink
and ssr subdevices. Also configures shared memory
and enables smp2p and mailboxes required for IPC.

Signed-off-by: Gokul Sriram Palanisamy <gokulsri@...eaurora.org>
Signed-off-by: Sricharan R <sricharan@...eaurora.org>
Signed-off-by: Nikhil Prakash V <nprakash@...eaurora.org>
---
changes since v3:
 - Added release_firmware to free up memory requested for m3 firmware.
changes since v2:
 - Removed syscon implementation to use mailbox framework to access APCS IPC
Changes since v1:
 - Addressed minor review comments.
---
 arch/arm64/boot/dts/qcom/ipq8074.dtsi | 121 ++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
index 6a61a63..da66533 100644
--- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
@@ -10,12 +10,66 @@
 	model = "Qualcomm Technologies, Inc. IPQ8074";
 	compatible = "qcom,ipq8074";
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		smem_region: memory@...00000 {
+			no-map;
+			reg = <0x0 0x4ab00000 0x0 0x00100000>;
+		};
+
+		q6_region: memory@...00000 {
+			no-map;
+			reg = <0x0 0x4b000000 0x0 0x05f00000>;
+		};
+	};
+
 	firmware {
 		scm {
 			compatible = "qcom,scm-ipq8074", "qcom,scm";
 		};
 	};
 
+	tcsr_mutex: hwlock@...d000 {
+		compatible = "qcom,tcsr-mutex";
+		syscon = <&tcsr_mutex_regs 0 0x80>;
+		#hwlock-cells = <1>;
+	};
+
+	smem {
+		compatible = "qcom,smem";
+		memory-region = <&smem_region>;
+		hwlocks = <&tcsr_mutex 0>;
+	};
+
+	wcss: smp2p-wcss {
+		compatible = "qcom,smp2p";
+		qcom,smem = <435>, <428>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <0 322 1>;
+
+		mboxes = <&apcs_glb 9>;
+
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <1>;
+
+		wcss_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			qcom,smp2p-feature-ssr-ack;
+			#qcom,smem-state-cells = <1>;
+		};
+
+		wcss_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
 	soc: soc {
 		#address-cells = <0x1>;
 		#size-cells = <0x1>;
@@ -431,6 +485,73 @@
 				      "axi_m_sticky";
 			status = "disabled";
 		};
+
+		tcsr_q6: syscon@...5000 {
+			compatible = "syscon";
+			reg = <0x01945000 0xe000>;
+		};
+
+		tcsr_mutex_regs: syscon@...d000 {
+			compatible = "syscon";
+			reg = <0x01905000 0x8000>;
+		};
+
+		apcs_glb: mailbox@...1000 {
+			compatible = "qcom,ipq8074-apcs-apps-global";
+			reg = <0x0b111000 0x1000>;
+
+			#mbox-cells = <1>;
+		};
+
+		q6v5_wcss: q6v5_wcss@...0000 {
+			compatible = "qcom,ipq8074-wcss-pil";
+			reg = <0x0cd00000 0x4040>,
+			      <0x004ab000 0x20>;
+			reg-names = "qdsp6",
+				    "rmb";
+			qca,auto-restart;
+			qca,extended-intc;
+			interrupts-extended = <&intc 0 325 1>,
+					      <&wcss_smp2p_in 0 0>,
+					      <&wcss_smp2p_in 1 0>,
+					      <&wcss_smp2p_in 2 0>,
+					      <&wcss_smp2p_in 3 0>;
+			interrupt-names = "wdog",
+					  "fatal",
+					  "ready",
+					  "handover",
+					  "stop-ack";
+
+			resets = <&gcc GCC_WCSSAON_RESET>,
+				 <&gcc GCC_WCSS_BCR>,
+				 <&gcc GCC_WCSS_Q6_BCR>;
+
+			reset-names = "wcss_aon_reset",
+				      "wcss_reset",
+				      "wcss_q6_reset";
+
+			clocks = <&gcc GCC_PRNG_AHB_CLK>;
+			clock-names = "prng";
+
+			qcom,halt-regs = <&tcsr_q6 0xa000 0xd000 0x0>;
+
+			qcom,smem-states = <&wcss_smp2p_out 0>,
+					   <&wcss_smp2p_out 1>;
+			qcom,smem-state-names = "shutdown",
+						"stop";
+
+			memory-region = <&q6_region>;
+
+			glink-edge {
+				interrupts = <GIC_SPI 321 IRQ_TYPE_EDGE_RISING>;
+				qcom,remote-pid = <1>;
+				mboxes = <&apcs_glb 8>;
+
+				rpm_requests {
+					qcom,glink-channels = "IPCRTR";
+				};
+			};
+		};
 	};
 
 	cpus {
-- 
1.9.1