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Date:   Wed,  1 May 2019 17:24:08 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        David Brown <david.brown@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3] arm64: dts: qcom: qcs404: Add PCIe related nodes

The QCS404 has a PCIe2 PHY and a Qualcomm PCIe controller, add these to
the platform dtsi and enable them for the EVB with the perst gpio
and analog supplies defined.

Reviewed-by: Niklas Cassel <niklas.cassel@...aro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---

The patch depends on the acceptance of:
https://lore.kernel.org/lkml/20190502002138.10646-1-bjorn.andersson@linaro.org/
https://lore.kernel.org/lkml/20190502001406.10431-2-bjorn.andersson@linaro.org/
https://lore.kernel.org/lkml/20190502001955.10575-3-bjorn.andersson@linaro.org/

Changes since v2:
- None

 arch/arm64/boot/dts/qcom/qcs404-evb.dtsi | 25 +++++++++
 arch/arm64/boot/dts/qcom/qcs404.dtsi     | 67 ++++++++++++++++++++++++
 2 files changed, 92 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
index 2c3127167e3c..988d21ca0df1 100644
--- a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
@@ -68,6 +68,22 @@
 	};
 };
 
+&pcie {
+	status = "ok";
+
+	perst-gpio = <&tlmm 43 GPIO_ACTIVE_LOW>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&perst_state>;
+};
+
+&pcie_phy {
+	status = "ok";
+
+	vdda-vp-supply = <&vreg_l3_1p05>;
+	vdda-vph-supply = <&vreg_l5_1p8>;
+};
+
 &remoteproc_adsp {
 	status = "ok";
 };
@@ -184,6 +200,15 @@
 };
 
 &tlmm {
+	perst_state: perst {
+		pins = "gpio43";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-disable;
+		output-low;
+	};
+
 	sdc1_on: sdc1-on {
 		clk {
 			pins = "sdc1_clk";
diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi b/arch/arm64/boot/dts/qcom/qcs404.dtsi
index ffedf9640af7..f41feab8996c 100644
--- a/arch/arm64/boot/dts/qcom/qcs404.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi
@@ -4,6 +4,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/qcom,gcc-qcs404.h>
 #include <dt-bindings/clock/qcom,rpmcc.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	interrupt-parent = <&intc>;
@@ -383,6 +384,7 @@
 			compatible = "qcom,gcc-qcs404";
 			reg = <0x01800000 0x80000>;
 			#clock-cells = <1>;
+			#reset-cells = <1>;
 
 			assigned-clocks = <&gcc GCC_APSS_AHB_CLK_SRC>;
 			assigned-clock-rates = <19200000>;
@@ -411,6 +413,21 @@
 			#interrupt-cells = <4>;
 		};
 
+		pcie_phy: phy@...6000 {
+			compatible = "qcom,qcs404-pcie2-phy", "qcom,pcie2-phy";
+			reg = <0x07786000 0xb8>;
+
+			clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
+			resets = <&gcc GCC_PCIEPHY_0_PHY_BCR>,
+				 <&gcc GCC_PCIE_0_PIPE_ARES>;
+			reset-names = "phy", "pipe";
+
+			clock-output-names = "pcie_0_pipe_clk";
+			#phy-cells = <0>;
+
+			status = "disabled";
+		};
+
 		sdcc1: sdcc@...4000 {
 			compatible = "qcom,sdhci-msm-v5";
 			reg = <0x07804000 0x1000>, <0x7805000 0x1000>;
@@ -796,6 +813,56 @@
 				status = "disabled";
 			};
 		};
+
+		pcie: pci@...00000 {
+			compatible = "qcom,pcie-qcs404", "snps,dw-pcie";
+			reg =  <0x10000000 0xf1d>,
+			       <0x10000f20 0xa8>,
+			       <0x07780000 0x2000>,
+			       <0x10001000 0x2000>;
+			reg-names = "dbi", "elbi", "parf", "config";
+			device_type = "pci";
+			linux,pci-domain = <0>;
+			bus-range = <0x00 0xff>;
+			num-lanes = <1>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			ranges = <0x81000000 0 0          0x10003000 0 0x00010000>, /* I/O */
+				 <0x82000000 0 0x10013000 0x10013000 0 0x007ed000>; /* memory */
+
+			interrupts = <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "msi";
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0x7>;
+			interrupt-map = <0 0 0 1 &intc GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
+					<0 0 0 2 &intc GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
+					<0 0 0 3 &intc GIC_SPI 267 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
+					<0 0 0 4 &intc GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
+			clocks = <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
+				 <&gcc GCC_PCIE_0_AUX_CLK>,
+				 <&gcc GCC_PCIE_0_MSTR_AXI_CLK>,
+				 <&gcc GCC_PCIE_0_SLV_AXI_CLK>;
+			clock-names = "iface", "aux", "master_bus", "slave_bus";
+
+			resets = <&gcc GCC_PCIE_0_AXI_MASTER_ARES>,
+				 <&gcc GCC_PCIE_0_AXI_SLAVE_ARES>,
+				 <&gcc GCC_PCIE_0_AXI_MASTER_STICKY_ARES>,
+				 <&gcc GCC_PCIE_0_CORE_STICKY_ARES>,
+				 <&gcc GCC_PCIE_0_BCR>,
+				 <&gcc GCC_PCIE_0_AHB_ARES>;
+			reset-names = "axi_m",
+				      "axi_s",
+				      "axi_m_sticky",
+				      "pipe_sticky",
+				      "pwr",
+				      "ahb";
+
+			phys = <&pcie_phy>;
+			phy-names = "pciephy";
+
+			status = "disabled";
+		};
 	};
 
 	timer {
-- 
2.18.0

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