linux-kernel - [PATCH v2 1/2] ARM: dts: qcom: sdx65: add IPA information

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Date:   Mon, 27 Mar 2023 14:15:41 -0500
From:   Alex Elder <elder@...aro.org>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        andersson@...nel.org, agross@...nel.org, konrad.dybcio@...aro.org
Cc:     quic_rohiagar@...cinc.com, caleb.connolly@...aro.org,
        mka@...omium.org, evgreen@...omium.org, quic_cpratapa@...cinc.com,
        quic_avuyyuru@...cinc.com, quic_jponduru@...cinc.com,
        quic_subashab@...cinc.com, elder@...nel.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH v2 1/2] ARM: dts: qcom: sdx65: add IPA information

Add IPA-related nodes and definitions to "sdx65.dtsi".  The SMP2P
nodes (ipa_smp2p_out and ipa_smp2p_in) are already present.

Enable IPA in "sdx65-mtp.dts"; this GSI firmware is loaded by Trust
Zone on this platform.

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
Tested-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
Signed-off-by: Alex Elder <elder@...aro.org>
---
v2: - Fixed an alignment issue noticed by Krzysztof.
    - Moved the "iommus" property as suggested by Konrad.

 arch/arm/boot/dts/qcom-sdx65-mtp.dts |  5 ++++
 arch/arm/boot/dts/qcom-sdx65.dtsi    | 39 ++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-sdx65-mtp.dts b/arch/arm/boot/dts/qcom-sdx65-mtp.dts
index ed98c83c141fc..72e25de0db5fc 100644
--- a/arch/arm/boot/dts/qcom-sdx65-mtp.dts
+++ b/arch/arm/boot/dts/qcom-sdx65-mtp.dts
@@ -245,6 +245,11 @@ &blsp1_uart3 {
 	status = "okay";
 };
 
+&ipa {
+	qcom,gsi-loader = "skip";
+	status = "okay";
+};
+
 &qpic_bam {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/qcom-sdx65.dtsi b/arch/arm/boot/dts/qcom-sdx65.dtsi
index 192f9f94bc8b4..f35061e5b7fb8 100644
--- a/arch/arm/boot/dts/qcom-sdx65.dtsi
+++ b/arch/arm/boot/dts/qcom-sdx65.dtsi
@@ -11,6 +11,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
+#include <dt-bindings/interconnect/qcom,sdx65.h>
 
 / {
 	#address-cells = <1>;
@@ -299,6 +300,44 @@ tcsr_mutex: hwlock@...0000 {
 			#hwlock-cells = <1>;
 		};
 
+		ipa: ipa@...4000 {
+			compatible = "qcom,sdx65-ipa";
+
+			reg = <0x3f40000 0x10000>,
+			      <0x3f50000 0x5000>,
+			      <0x3e04000 0xfc000>;
+			reg-names = "ipa-reg",
+				    "ipa-shared",
+				    "gsi";
+
+			interrupts-extended = <&intc GIC_SPI 241 IRQ_TYPE_EDGE_RISING>,
+					      <&intc GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
+					      <&ipa_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+					      <&ipa_smp2p_in 1 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "ipa",
+					  "gsi",
+					  "ipa-clock-query",
+					  "ipa-setup-ready";
+
+			iommus = <&apps_smmu 0x5e0 0x0>,
+				 <&apps_smmu 0x5e2 0x0>;
+
+			clocks = <&rpmhcc RPMH_IPA_CLK>;
+			clock-names = "core";
+
+			interconnects = <&system_noc MASTER_IPA &mc_virt SLAVE_EBI1>,
+					<&mem_noc MASTER_APPSS_PROC &system_noc SLAVE_IPA_CFG>;
+			interconnect-names = "memory",
+					     "config";
+
+			qcom,smem-states = <&ipa_smp2p_out 0>,
+					   <&ipa_smp2p_out 1>;
+			qcom,smem-state-names = "ipa-clock-enabled-valid",
+						"ipa-clock-enabled";
+
+			status = "disabled";
+		};
+
 		remoteproc_mpss: remoteproc@...0000 {
 			compatible = "qcom,sdx55-mpss-pas";
 			reg = <0x04080000 0x4040>;
-- 
2.34.1