[PATCH v3 00/13] Add PCIe RC support to Qcom SDX55 SoC

[PATCH v3 00/13] Add PCIe RC support to Qcom SDX55 SoC

[Manivannan Sadhasivam]

Hi,

This series adds PCIe RC support to the Qcom SDX55 SoC. The PCIe controller
in SDX55 can act as both Root Complex and Endpoint but only one mode at a
time i.e., the mode cannot be switched during runtime.

This series has been tested on Thundercomm T55 board having QCA6390 WLAN
chipset connected to the PCIe controller. For powering up the WLAN chipset,
an out-of-tree patch has been used since we do not have a proper driver in
mainline to handle the power supplies.

NOTE: Even with this series, I couldn't get network connectivity using
QCA6390. But that's due to ath11k regression for which I've filed a bug
report: https://bugzilla.kernel.org/show_bug.cgi?id=217070

Merging strategy
----------------

PCI and binding patches through PCI tree
PHY patches through PHY tree
Devicetree patches through Qcom tree

Thanks,
Mani

Changes in v3:

* Removed "iommus" property from binding and dtsi file
* Fixed the PCIe I/O range
* Rebased on top of v6.3-rc1
* Collected reviews

Changes in v2:

* Added patch to move status property down
* Added patch to list property values vertically
* Addressed comments from Konrad
* Collected review tags
* Fixed review tag for dts patch

Manivannan Sadhasivam (13):
  dt-bindings: PCI: qcom: Update maintainers entry
  dt-bindings: PCI: qcom: Add iommu-map properties
  dt-bindings: PCI: qcom: Add SDX55 SoC
  dt-bindings: PCI: qcom-ep: Fix the unit address used in example
  ARM: dts: qcom: sdx55: Fix the unit address of PCIe EP node
  ARM: dts: qcom: sdx55: Rename pcie0_{phy/lane} to pcie_{phy/lane}
  ARM: dts: qcom: sdx55: Add support for PCIe RC controller
  ARM: dts: qcom: sdx55: List the property values vertically
  ARM: dts: qcom: sdx55-t55: Enable PCIe RC support
  ARM: dts: qcom: sdx55-t55: Move "status" property down
  phy: qcom-qmp-pcie: Split out EP related init sequence for SDX55
  phy: qcom-qmp-pcie: Add RC init sequence for SDX55
  PCI: qcom: Add support for SDX55 SoC

 .../devicetree/bindings/pci/qcom,pcie-ep.yaml |   2 +-
 .../devicetree/bindings/pci/qcom,pcie.yaml    |  32 +++-
 arch/arm/boot/dts/qcom-sdx55-t55.dts          |  50 ++++-
 .../boot/dts/qcom-sdx55-telit-fn980-tlb.dts   |   2 +-
 arch/arm/boot/dts/qcom-sdx55.dtsi             | 178 +++++++++++++-----
 drivers/pci/controller/dwc/pcie-qcom.c        |   4 +-
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c      |  91 +++++++--
 .../qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h    |   2 +
 8 files changed, 297 insertions(+), 64 deletions(-)

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[PATCH v3 01/13] dt-bindings: PCI: qcom: Update maintainers entry

[Manivannan Sadhasivam]

Stan is no longer working with MMSOL and expressed his interest to not
continue maintaining Qcom PCIe driver. Since I took over the driver
maintainership, I'm stepping in to maintain the binding also.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index fb32c43dd12d..92eb273581f6 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -8,7 +8,7 @@ title: Qualcomm PCI express root complex
 
 maintainers:
   - Bjorn Andersson <bjorn.andersson@linaro.org>
-  - Stanimir Varbanov <svarbanov@mm-sol.com>
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 
 description: |
   Qualcomm PCIe root complex controller is based on the Synopsys DesignWare
-- 
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[PATCH v3 02/13] dt-bindings: PCI: qcom: Add iommu-map properties

[Manivannan Sadhasivam]

Most of the PCIe controllers require iommu support to function properly.
So let's add the "iommu-map" property that specifies the SMMU SID of the
PCIe devices to the binding.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 92eb273581f6..55ee86facbc0 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -70,6 +70,8 @@ properties:
 
   dma-coherent: true
 
+  iommu-map: true
+
   interconnects:
     maxItems: 2
 
-- 
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[PATCH v3 03/13] dt-bindings: PCI: qcom: Add SDX55 SoC

[Manivannan Sadhasivam]

Add support for the PCIe controller on the Qcom SDX55 SoC to the binding.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 .../devicetree/bindings/pci/qcom,pcie.yaml    | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 55ee86facbc0..35ef56553603 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -33,6 +33,7 @@ properties:
           - qcom,pcie-sc8180x
           - qcom,pcie-sc8280xp
           - qcom,pcie-sdm845
+          - qcom,pcie-sdx55
           - qcom,pcie-sm8150
           - qcom,pcie-sm8250
           - qcom,pcie-sm8350
@@ -203,6 +204,7 @@ allOf:
               - qcom,pcie-sc7280
               - qcom,pcie-sc8180x
               - qcom,pcie-sc8280xp
+              - qcom,pcie-sdx55
               - qcom,pcie-sm8250
               - qcom,pcie-sm8350
               - qcom,pcie-sm8450-pcie0
@@ -671,6 +673,32 @@ allOf:
           items:
             - const: pci # PCIe core reset
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sdx55
+    then:
+      properties:
+        clocks:
+          minItems: 7
+          maxItems: 7
+        clock-names:
+          items:
+            - const: pipe # PIPE clock
+            - const: aux # Auxiliary clock
+            - const: cfg # Configuration clock
+            - const: bus_master # Master AXI clock
+            - const: bus_slave # Slave AXI clock
+            - const: slave_q2a # Slave Q2A clock
+            - const: sleep # PCIe Sleep clock
+        resets:
+          maxItems: 1
+        reset-names:
+          items:
+            - const: pci # PCIe core reset
+
   - if:
       properties:
         compatible:
-- 
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[PATCH v3 04/13] dt-bindings: PCI: qcom-ep: Fix the unit address used in example

[Manivannan Sadhasivam]

Unit address of PCIe EP node should be 0x1c00000 as it has to match the
first address specified in the reg property.

Fixes: 31c9ef002580 ("dt-bindings: PCI: Add Qualcomm PCIe Endpoint controller")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
index 89cfdee4b89f..b7f6fbaa0ba0 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
@@ -166,7 +166,7 @@ examples:
     #include <dt-bindings/clock/qcom,gcc-sdx55.h>
     #include <dt-bindings/gpio/gpio.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
-    pcie_ep: pcie-ep@40000000 {
+    pcie_ep: pcie-ep@1c00000 {
         compatible = "qcom,sdx55-pcie-ep";
         reg = <0x01c00000 0x3000>,
               <0x40000000 0xf1d>,
-- 
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[PATCH v3 05/13] ARM: dts: qcom: sdx55: Fix the unit address of PCIe EP node

[Manivannan Sadhasivam]

Unit address of PCIe EP node should be 0x1c00000 as it has to match the
first address specified in the reg property.

This also requires sorting the node in the ascending order.

Fixes: e6b69813283f ("ARM: dts: qcom: sdx55: Add support for PCIe EP")
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 arch/arm/boot/dts/qcom-sdx55.dtsi | 78 +++++++++++++++----------------
 1 file changed, 39 insertions(+), 39 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-sdx55.dtsi b/arch/arm/boot/dts/qcom-sdx55.dtsi
index df7303c5c843..7fa542249f1a 100644
--- a/arch/arm/boot/dts/qcom-sdx55.dtsi
+++ b/arch/arm/boot/dts/qcom-sdx55.dtsi
@@ -304,6 +304,45 @@ qpic_nand: nand-controller@1b30000 {
 			status = "disabled";
 		};
 
+		pcie_ep: pcie-ep@1c00000 {
+			compatible = "qcom,sdx55-pcie-ep";
+			reg = <0x01c00000 0x3000>,
+			      <0x40000000 0xf1d>,
+			      <0x40000f20 0xc8>,
+			      <0x40001000 0x1000>,
+			      <0x40200000 0x100000>,
+			      <0x01c03000 0x3000>;
+			reg-names = "parf", "dbi", "elbi", "atu", "addr_space",
+				    "mmio";
+
+			qcom,perst-regs = <&tcsr 0xb258 0xb270>;
+
+			clocks = <&gcc GCC_PCIE_AUX_CLK>,
+				 <&gcc GCC_PCIE_CFG_AHB_CLK>,
+				 <&gcc GCC_PCIE_MSTR_AXI_CLK>,
+				 <&gcc GCC_PCIE_SLV_AXI_CLK>,
+				 <&gcc GCC_PCIE_SLV_Q2A_AXI_CLK>,
+				 <&gcc GCC_PCIE_SLEEP_CLK>,
+				 <&gcc GCC_PCIE_0_CLKREF_CLK>;
+			clock-names = "aux", "cfg", "bus_master", "bus_slave",
+				      "slave_q2a", "sleep", "ref";
+
+			interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "global", "doorbell";
+			reset-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
+			wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
+			resets = <&gcc GCC_PCIE_BCR>;
+			reset-names = "core";
+			power-domains = <&gcc PCIE_GDSC>;
+			phys = <&pcie0_lane>;
+			phy-names = "pciephy";
+			max-link-speed = <3>;
+			num-lanes = <2>;
+
+			status = "disabled";
+		};
+
 		pcie0_phy: phy@1c07000 {
 			compatible = "qcom,sdx55-qmp-pcie-phy";
 			reg = <0x01c07000 0x1c4>;
@@ -401,45 +440,6 @@ sdhc_1: mmc@8804000 {
 			status = "disabled";
 		};
 
-		pcie_ep: pcie-ep@40000000 {
-			compatible = "qcom,sdx55-pcie-ep";
-			reg = <0x01c00000 0x3000>,
-			      <0x40000000 0xf1d>,
-			      <0x40000f20 0xc8>,
-			      <0x40001000 0x1000>,
-			      <0x40200000 0x100000>,
-			      <0x01c03000 0x3000>;
-			reg-names = "parf", "dbi", "elbi", "atu", "addr_space",
-				    "mmio";
-
-			qcom,perst-regs = <&tcsr 0xb258 0xb270>;
-
-			clocks = <&gcc GCC_PCIE_AUX_CLK>,
-				 <&gcc GCC_PCIE_CFG_AHB_CLK>,
-				 <&gcc GCC_PCIE_MSTR_AXI_CLK>,
-				 <&gcc GCC_PCIE_SLV_AXI_CLK>,
-				 <&gcc GCC_PCIE_SLV_Q2A_AXI_CLK>,
-				 <&gcc GCC_PCIE_SLEEP_CLK>,
-				 <&gcc GCC_PCIE_0_CLKREF_CLK>;
-			clock-names = "aux", "cfg", "bus_master", "bus_slave",
-				      "slave_q2a", "sleep", "ref";
-
-			interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
-			interrupt-names = "global", "doorbell";
-			reset-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
-			wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
-			resets = <&gcc GCC_PCIE_BCR>;
-			reset-names = "core";
-			power-domains = <&gcc PCIE_GDSC>;
-			phys = <&pcie0_lane>;
-			phy-names = "pciephy";
-			max-link-speed = <3>;
-			num-lanes = <2>;
-
-			status = "disabled";
-		};
-
 		remoteproc_mpss: remoteproc@4080000 {
 			compatible = "qcom,sdx55-mpss-pas";
 			reg = <0x04080000 0x4040>;
-- 
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[PATCH v3 06/13] ARM: dts: qcom: sdx55: Rename pcie0_{phy/lane} to pcie_{phy/lane}

[Manivannan Sadhasivam]

There is only one PCIe PHY in this SoC, so there is no need to add an
index to the suffix. This also matches the naming convention of the PCIe
controller.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 arch/arm/boot/dts/qcom-sdx55-telit-fn980-tlb.dts | 2 +-
 arch/arm/boot/dts/qcom-sdx55.dtsi                | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-sdx55-telit-fn980-tlb.dts b/arch/arm/boot/dts/qcom-sdx55-telit-fn980-tlb.dts
index ad74ecc2a196..81f33eba39e5 100644
--- a/arch/arm/boot/dts/qcom-sdx55-telit-fn980-tlb.dts
+++ b/arch/arm/boot/dts/qcom-sdx55-telit-fn980-tlb.dts
@@ -242,7 +242,7 @@ &ipa {
 	status = "okay";
 };
 
-&pcie0_phy {
+&pcie_phy {
 	status = "okay";
 
 	vdda-phy-supply = <&vreg_l1e_bb_1p2>;
diff --git a/arch/arm/boot/dts/qcom-sdx55.dtsi b/arch/arm/boot/dts/qcom-sdx55.dtsi
index 7fa542249f1a..bd4edceaa1f4 100644
--- a/arch/arm/boot/dts/qcom-sdx55.dtsi
+++ b/arch/arm/boot/dts/qcom-sdx55.dtsi
@@ -335,7 +335,7 @@ pcie_ep: pcie-ep@1c00000 {
 			resets = <&gcc GCC_PCIE_BCR>;
 			reset-names = "core";
 			power-domains = <&gcc PCIE_GDSC>;
-			phys = <&pcie0_lane>;
+			phys = <&pcie_lane>;
 			phy-names = "pciephy";
 			max-link-speed = <3>;
 			num-lanes = <2>;
@@ -343,7 +343,7 @@ pcie_ep: pcie-ep@1c00000 {
 			status = "disabled";
 		};
 
-		pcie0_phy: phy@1c07000 {
+		pcie_phy: phy@1c07000 {
 			compatible = "qcom,sdx55-qmp-pcie-phy";
 			reg = <0x01c07000 0x1c4>;
 			#address-cells = <1>;
@@ -363,7 +363,7 @@ pcie0_phy: phy@1c07000 {
 
 			status = "disabled";
 
-			pcie0_lane: lanes@1c06000 {
+			pcie_lane: lanes@1c06000 {
 				reg = <0x01c06000 0x104>, /* tx0 */
 				      <0x01c06200 0x328>, /* rx0 */
 				      <0x01c07200 0x1e8>, /* pcs */
-- 
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[PATCH v3 07/13] ARM: dts: qcom: sdx55: Add support for PCIe RC controller

[Manivannan Sadhasivam]

The PCIe controller in SDX55 can act as the RC controller also. Let's
add support for it.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 arch/arm/boot/dts/qcom-sdx55.dtsi | 81 +++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-sdx55.dtsi b/arch/arm/boot/dts/qcom-sdx55.dtsi
index bd4edceaa1f4..9dabb94eafbc 100644
--- a/arch/arm/boot/dts/qcom-sdx55.dtsi
+++ b/arch/arm/boot/dts/qcom-sdx55.dtsi
@@ -304,6 +304,87 @@ qpic_nand: nand-controller@1b30000 {
 			status = "disabled";
 		};
 
+		pcie_rc: pcie@1c00000 {
+			compatible = "qcom,pcie-sdx55";
+			reg = <0x01c00000 0x3000>,
+			      <0x40000000 0xf1d>,
+			      <0x40000f20 0xc8>,
+			      <0x40001000 0x1000>,
+			      <0x40100000 0x100000>;
+			reg-names = "parf",
+				    "dbi",
+				    "elbi",
+				    "atu",
+				    "config";
+			device_type = "pci";
+			linux,pci-domain = <0>;
+			bus-range = <0x00 0xff>;
+			num-lanes = <1>;
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			ranges = <0x01000000 0x0 0x00000000 0x40200000 0x0 0x100000>,
+				 <0x02000000 0x0 0x40300000 0x40300000 0x0 0x3fd00000>;
+
+			interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "msi",
+					  "msi2",
+					  "msi3",
+					  "msi4",
+					  "msi5",
+					  "msi6",
+					  "msi7",
+					  "msi8";
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0x7>;
+			interrupt-map = <0 0 0 1 &intc 0 0 0 141 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
+					<0 0 0 2 &intc 0 0 0 142 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
+					<0 0 0 3 &intc 0 0 0 143 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
+					<0 0 0 4 &intc 0 0 0 144 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
+
+			clocks = <&gcc GCC_PCIE_PIPE_CLK>,
+				 <&gcc GCC_PCIE_AUX_CLK>,
+				 <&gcc GCC_PCIE_CFG_AHB_CLK>,
+				 <&gcc GCC_PCIE_MSTR_AXI_CLK>,
+				 <&gcc GCC_PCIE_SLV_AXI_CLK>,
+				 <&gcc GCC_PCIE_SLV_Q2A_AXI_CLK>,
+				 <&gcc GCC_PCIE_SLEEP_CLK>;
+			clock-names = "pipe",
+				      "aux",
+				      "cfg",
+				      "bus_master",
+				      "bus_slave",
+				      "slave_q2a",
+				      "sleep";
+
+			assigned-clocks = <&gcc GCC_PCIE_AUX_CLK>;
+			assigned-clock-rates = <19200000>;
+
+			iommu-map = <0x0   &apps_smmu 0x0200 0x1>,
+				    <0x100 &apps_smmu 0x0201 0x1>,
+				    <0x200 &apps_smmu 0x0202 0x1>,
+				    <0x300 &apps_smmu 0x0203 0x1>,
+				    <0x400 &apps_smmu 0x0204 0x1>;
+
+			resets = <&gcc GCC_PCIE_BCR>;
+			reset-names = "pci";
+
+			power-domains = <&gcc PCIE_GDSC>;
+
+			phys = <&pcie_lane>;
+			phy-names = "pciephy";
+
+			status = "disabled";
+		};
+
 		pcie_ep: pcie-ep@1c00000 {
 			compatible = "qcom,sdx55-pcie-ep";
 			reg = <0x01c00000 0x3000>,
-- 
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[PATCH v3 08/13] ARM: dts: qcom: sdx55: List the property values vertically

[Manivannan Sadhasivam]

To align with the rest of the devicetree files and the relative properties,
let's list the values of properties such as {reg/clock/interrupt}-names
vertically.

Suggested-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 arch/arm/boot/dts/qcom-sdx55.dtsi | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-sdx55.dtsi b/arch/arm/boot/dts/qcom-sdx55.dtsi
index 9dabb94eafbc..286fa92da428 100644
--- a/arch/arm/boot/dts/qcom-sdx55.dtsi
+++ b/arch/arm/boot/dts/qcom-sdx55.dtsi
@@ -393,7 +393,11 @@ pcie_ep: pcie-ep@1c00000 {
 			      <0x40001000 0x1000>,
 			      <0x40200000 0x100000>,
 			      <0x01c03000 0x3000>;
-			reg-names = "parf", "dbi", "elbi", "atu", "addr_space",
+			reg-names = "parf",
+				    "dbi",
+				    "elbi",
+				    "atu",
+				    "addr_space",
 				    "mmio";
 
 			qcom,perst-regs = <&tcsr 0xb258 0xb270>;
@@ -405,12 +409,18 @@ pcie_ep: pcie-ep@1c00000 {
 				 <&gcc GCC_PCIE_SLV_Q2A_AXI_CLK>,
 				 <&gcc GCC_PCIE_SLEEP_CLK>,
 				 <&gcc GCC_PCIE_0_CLKREF_CLK>;
-			clock-names = "aux", "cfg", "bus_master", "bus_slave",
-				      "slave_q2a", "sleep", "ref";
+			clock-names = "aux",
+				      "cfg",
+				      "bus_master",
+				      "bus_slave",
+				      "slave_q2a",
+				      "sleep",
+				      "ref";
 
 			interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
-			interrupt-names = "global", "doorbell";
+			interrupt-names = "global",
+					  "doorbell";
 			reset-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
 			wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
 			resets = <&gcc GCC_PCIE_BCR>;
@@ -434,7 +444,10 @@ pcie_phy: phy@1c07000 {
 				 <&gcc GCC_PCIE_CFG_AHB_CLK>,
 				 <&gcc GCC_PCIE_0_CLKREF_CLK>,
 				 <&gcc GCC_PCIE_RCHNG_PHY_CLK>;
-			clock-names = "aux", "cfg_ahb", "ref", "refgen";
+			clock-names = "aux",
+				      "cfg_ahb",
+				      "ref",
+				      "refgen";
 
 			resets = <&gcc GCC_PCIE_PHY_BCR>;
 			reset-names = "phy";
-- 
2.25.1


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[PATCH v3 09/13] ARM: dts: qcom: sdx55-t55: Enable PCIe RC support

[Manivannan Sadhasivam]

Enable PCIe RC support on Thundercomm T55 board.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 arch/arm/boot/dts/qcom-sdx55-t55.dts | 42 ++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-sdx55-t55.dts b/arch/arm/boot/dts/qcom-sdx55-t55.dts
index d5343bb0daee..5edc09af8e0d 100644
--- a/arch/arm/boot/dts/qcom-sdx55-t55.dts
+++ b/arch/arm/boot/dts/qcom-sdx55-t55.dts
@@ -242,6 +242,23 @@ &ipa {
 	status = "okay";
 };
 
+&pcie_phy {
+	vdda-phy-supply = <&vreg_l1e_bb_1p2>;
+	vdda-pll-supply = <&vreg_l4e_bb_0p875>;
+
+	status = "okay";
+};
+
+&pcie_rc {
+	perst-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 53 GPIO_ACTIVE_HIGH>;
+
+	pinctrl-0 = <&pcie_default>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
 &qpic_bam {
 	status = "okay";
 };
@@ -265,6 +282,31 @@ &remoteproc_mpss {
 	memory-region = <&mpss_adsp_mem>;
 };
 
+&tlmm {
+	pcie_default: pcie-default-state {
+		clkreq-pins {
+			pins = "gpio56";
+			function = "pcie_clkreq";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+
+		perst-pins {
+			pins = "gpio57";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-down;
+		};
+
+		wake-pins {
+		       pins = "gpio53";
+		       function = "gpio";
+		       drive-strength = <2>;
+		       bias-pull-up;
+	       };
+	};
+};
+
 &usb_hsphy {
 	status = "okay";
 	vdda-pll-supply = <&vreg_l4e_bb_0p875>;
-- 
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[PATCH v3 10/13] ARM: dts: qcom: sdx55-t55: Move "status" property down

[Manivannan Sadhasivam]

To align with rest of the devicetree files, let's move the "status"
property down

Suggested-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 arch/arm/boot/dts/qcom-sdx55-t55.dts | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-sdx55-t55.dts b/arch/arm/boot/dts/qcom-sdx55-t55.dts
index 5edc09af8e0d..51058b065279 100644
--- a/arch/arm/boot/dts/qcom-sdx55-t55.dts
+++ b/arch/arm/boot/dts/qcom-sdx55-t55.dts
@@ -278,8 +278,8 @@ nand@0 {
 };
 
 &remoteproc_mpss {
-	status = "okay";
 	memory-region = <&mpss_adsp_mem>;
+	status = "okay";
 };
 
 &tlmm {
@@ -308,16 +308,18 @@ wake-pins {
 };
 
 &usb_hsphy {
-	status = "okay";
 	vdda-pll-supply = <&vreg_l4e_bb_0p875>;
 	vdda33-supply = <&vreg_l10e_3p1>;
 	vdda18-supply = <&vreg_l5e_bb_1p7>;
+
+	status = "okay";
 };
 
 &usb_qmpphy {
-	status = "okay";
 	vdda-phy-supply = <&vreg_l4e_bb_0p875>;
 	vdda-pll-supply = <&vreg_l1e_bb_1p2>;
+
+	status = "okay";
 };
 
 &usb {
-- 
2.25.1


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[PATCH v3 11/13] phy: qcom-qmp-pcie: Split out EP related init sequence for SDX55

[Manivannan Sadhasivam]

In preparation for adding RC support, let's split out the EP related init
sequence so that the common sequence could be reused by RC as well.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 42 ++++++++++++++++--------
 1 file changed, 28 insertions(+), 14 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 5182aeac43ee..35328e998699 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1130,10 +1130,25 @@ static const struct qmp_phy_init_tbl sm8250_qmp_gen3x2_pcie_pcs_misc_tbl[] = {
 };
 
 static const struct qmp_phy_init_tbl sdx55_qmp_pcie_serdes_tbl[] = {
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BG_TIMER, 0x02),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN, 0x18),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYS_CLK_CTRL, 0x07),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_IVCO, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x46),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_CFG, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_MAP, 0x02),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x12),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_HS_SWITCH_SEL, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORECLK_DIV_MODE0, 0x05),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORECLK_DIV_MODE1, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_MISC1, 0x88),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_MISC2, 0x03),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_MODE, 0x17),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_DC_LEVEL_CTRL, 0x0b),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_HSCLK_SEL, 0x22),
+};
+
+static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_serdes_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BG_TIMER, 0x02),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYS_CLK_CTRL, 0x07),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE0, 0x0a),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE1, 0x0a),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE0, 0x19),
@@ -1141,8 +1156,6 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE0, 0x03),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE1, 0x03),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x00),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x46),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_CFG, 0x04),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x7f),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x02),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE1, 0xff),
@@ -1154,21 +1167,11 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_INTEGLOOP_GAIN1_MODE0, 0x01),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_INTEGLOOP_GAIN0_MODE1, 0xfb),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_INTEGLOOP_GAIN1_MODE1, 0x01),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_MAP, 0x02),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x12),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_HS_SWITCH_SEL, 0x00),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORECLK_DIV_MODE0, 0x05),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORECLK_DIV_MODE1, 0x04),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_CONFIG, 0x04),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_MISC1, 0x88),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_MISC2, 0x03),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_MODE, 0x17),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_DC_LEVEL_CTRL, 0x0b),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE0, 0x56),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE0, 0x1d),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE1, 0x4b),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE1, 0x1f),
-	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_HSCLK_SEL, 0x22),
 };
 
 static const struct qmp_phy_init_tbl sdx55_qmp_pcie_tx_tbl[] = {
@@ -1220,6 +1223,9 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_G4_RXEQEVAL_TIME, 0x13),
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_G4_EQ_CONFIG2, 0x01),
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_G4_EQ_CONFIG5, 0x02),
+};
+
+static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_SW_CTRL2, 0x00),
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_MX_CTRL2, 0x00),
 };
@@ -2301,6 +2307,14 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = {
 		.pcs_misc	= sdx55_qmp_pcie_pcs_misc_tbl,
 		.pcs_misc_num	= ARRAY_SIZE(sdx55_qmp_pcie_pcs_misc_tbl),
 	},
+
+	.tbls_ep = &(const struct qmp_phy_cfg_tbls) {
+		.serdes		= sdx55_qmp_pcie_ep_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sdx55_qmp_pcie_ep_serdes_tbl),
+		.pcs_misc	= sdx55_qmp_pcie_ep_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sdx55_qmp_pcie_ep_pcs_misc_tbl),
+	},
+
 	.clk_list		= sdm845_pciephy_clk_l,
 	.num_clks		= ARRAY_SIZE(sdm845_pciephy_clk_l),
 	.reset_list		= sdm845_pciephy_reset_l,
-- 
2.25.1


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[PATCH v3 12/13] phy: qcom-qmp-pcie: Add RC init sequence for SDX55

[Manivannan Sadhasivam]

Add PCIe RC init sequence making use of the common init sequence. The RC
mode additionally requires REFCLK_DRV_DSBL bit to set during powerup and
powerdown.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c      | 49 ++++++++++++++++++-
 .../qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h    |  2 +
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 35328e998699..d671748bc097 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1146,6 +1146,41 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_HSCLK_SEL, 0x22),
 };
 
+static const struct qmp_phy_init_tbl sdx55_qmp_pcie_rc_serdes_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_EN_CENTER, 0x01),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_PER1, 0x31),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_PER2, 0x01),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE1_MODE0, 0xce),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE2_MODE0, 0x0b),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE1_MODE1, 0x97),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE2_MODE1, 0x0c),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_ENABLE1, 0x90),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_EP_DIV_MODE0, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_EP_DIV_MODE1, 0x10),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE0, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE1, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE0, 0x16),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE1, 0x16),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE0, 0x36),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE1, 0x36),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x08),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x0d),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE1, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE1, 0x1a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0xc3),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE1, 0xd0),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x05),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START1_MODE1, 0x55),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE1, 0x55),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE1, 0x05),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_SELECT, 0x34),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE0, 0xca),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE0, 0x1e),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE1, 0xd8),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE1, 0x20),
+};
+
 static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BG_TIMER, 0x02),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYS_CLK_CTRL, 0x07),
@@ -1225,6 +1260,11 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_G4_EQ_CONFIG5, 0x02),
 };
 
+static const struct qmp_phy_init_tbl sdx55_qmp_pcie_rc_pcs_misc_tbl[] = {
+	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1),
+	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_OSC_DTCT_ACTIONS, 0x00),
+};
+
 static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_SW_CTRL2, 0x00),
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_MX_CTRL2, 0x00),
@@ -2308,6 +2348,13 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = {
 		.pcs_misc_num	= ARRAY_SIZE(sdx55_qmp_pcie_pcs_misc_tbl),
 	},
 
+	.tbls_rc = &(const struct qmp_phy_cfg_tbls) {
+		.serdes		= sdx55_qmp_pcie_rc_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sdx55_qmp_pcie_rc_serdes_tbl),
+		.pcs_misc	= sdx55_qmp_pcie_rc_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sdx55_qmp_pcie_rc_pcs_misc_tbl),
+	},
+
 	.tbls_ep = &(const struct qmp_phy_cfg_tbls) {
 		.serdes		= sdx55_qmp_pcie_ep_serdes_tbl,
 		.serdes_num	= ARRAY_SIZE(sdx55_qmp_pcie_ep_serdes_tbl),
@@ -2323,7 +2370,7 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = {
 	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
 	.regs			= pciephy_v4_regs_layout,
 
-	.pwrdn_ctrl		= SW_PWRDN,
+	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
 	.phy_status		= PHYSTATUS_4_20,
 };
 
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h
index af273602998e..ac872a9eff9a 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h
@@ -6,6 +6,8 @@
 #ifndef QCOM_PHY_QMP_PCS_PCIE_V4_20_H_
 #define QCOM_PHY_QMP_PCS_PCIE_V4_20_H_
 
+#define QPHY_V4_20_PCS_PCIE_ENDPOINT_REFCLK_DRIVE	0x01c
+#define QPHY_V4_20_PCS_PCIE_OSC_DTCT_ACTIONS		0x090
 #define QPHY_V4_20_PCS_PCIE_EQ_CONFIG1			0x0a0
 #define QPHY_V4_20_PCS_PCIE_G3_RXEQEVAL_TIME		0x0f0
 #define QPHY_V4_20_PCS_PCIE_G4_RXEQEVAL_TIME		0x0f4
-- 
2.25.1


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[PATCH v3 13/13] PCI: qcom: Add support for SDX55 SoC

[Manivannan Sadhasivam]

Add support for SDX55 SoC reusing the 1.9.0 config. The PCIe controller is
of version 1.10.0 but it is compatible with the 1.9.0 config. This SoC also
requires "sleep" clock which is added as an optional clock in the driver,
since it is not required on other SoCs.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index a232b04af048..17dd26cbfd61 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -182,7 +182,7 @@ struct qcom_pcie_resources_2_3_3 {
 
 /* 6 clocks typically, 7 for sm8250 */
 struct qcom_pcie_resources_2_7_0 {
-	struct clk_bulk_data clks[12];
+	struct clk_bulk_data clks[13];
 	int num_clks;
 	struct regulator_bulk_data supplies[2];
 	struct reset_control *pci_reset;
@@ -1208,6 +1208,7 @@ static int qcom_pcie_get_resources_2_7_0(struct qcom_pcie *pcie)
 	res->clks[idx++].id = "noc_aggr_4";
 	res->clks[idx++].id = "noc_aggr_south_sf";
 	res->clks[idx++].id = "cnoc_qx";
+	res->clks[idx++].id = "sleep";
 
 	num_opt_clks = idx - num_clks;
 	res->num_clks = idx;
@@ -1836,6 +1837,7 @@ static const struct of_device_id qcom_pcie_match[] = {
 	{ .compatible = "qcom,pcie-sc8180x", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sc8280xp", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sdm845", .data = &cfg_2_7_0 },
+	{ .compatible = "qcom,pcie-sdx55", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sm8150", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sm8250", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sm8350", .data = &cfg_1_9_0 },
-- 
2.25.1


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Re: (subset) [PATCH v3 00/13] Add PCIe RC support to Qcom SDX55 SoC

[Bjorn Andersson]

On Wed, 8 Mar 2023 13:54:11 +0530, Manivannan Sadhasivam wrote:
> This series adds PCIe RC support to the Qcom SDX55 SoC. The PCIe controller
> in SDX55 can act as both Root Complex and Endpoint but only one mode at a
> time i.e., the mode cannot be switched during runtime.
> 
> This series has been tested on Thundercomm T55 board having QCA6390 WLAN
> chipset connected to the PCIe controller. For powering up the WLAN chipset,
> an out-of-tree patch has been used since we do not have a proper driver in
> mainline to handle the power supplies.
> 
> [...]

Applied, thanks!

[05/13] ARM: dts: qcom: sdx55: Fix the unit address of PCIe EP node
        commit: 3b76b736cd9933ff88764ffec01cbd859c1475e7
[06/13] ARM: dts: qcom: sdx55: Rename pcie0_{phy/lane} to pcie_{phy/lane}
        commit: c9f30e3dd92ba779c9cb8bb694ed7a8e2c9f0bb3
[07/13] ARM: dts: qcom: sdx55: Add support for PCIe RC controller
        commit: 2b20437e67a4b74b990d19d3dbf55388e941f30f
[08/13] ARM: dts: qcom: sdx55: List the property values vertically
        commit: f9364a7ced5e6e36904c359cafe23cbf03645884
[09/13] ARM: dts: qcom: sdx55-t55: Enable PCIe RC support
        commit: 046392390884c9dead1d3703fa60dff97f22857a
[10/13] ARM: dts: qcom: sdx55-t55: Move "status" property down
        commit: 43743bfa36daed8f31860ad889a1413f239bb2f2

Best regards,
-- 
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Re: [PATCH v3 02/13] dt-bindings: PCI: qcom: Add iommu-map properties

[Rob Herring]

On Wed, 08 Mar 2023 13:54:13 +0530, Manivannan Sadhasivam wrote:
> Most of the PCIe controllers require iommu support to function properly.
> So let's add the "iommu-map" property that specifies the SMMU SID of the
> PCIe devices to the binding.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>


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Re: [PATCH v3 11/13] phy: qcom-qmp-pcie: Split out EP related init sequence for SDX55

[Vinod Koul]

On 08-03-23, 13:54, Manivannan Sadhasivam wrote:
> In preparation for adding RC support, let's split out the EP related init
> sequence so that the common sequence could be reused by RC as well.

Applied to phy/next, thanks

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Re: [PATCH v3 12/13] phy: qcom-qmp-pcie: Add RC init sequence for SDX55

[Vinod Koul]

On 08-03-23, 13:54, Manivannan Sadhasivam wrote:
> Add PCIe RC init sequence making use of the common init sequence. The RC
> mode additionally requires REFCLK_DRV_DSBL bit to set during powerup and
> powerdown.

Applied to phy/next, thanks

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Re: (subset) [PATCH v3 00/13] Add PCIe RC support to Qcom SDX55 SoC

[Lorenzo Pieralisi]

On Wed, 08 Mar 2023 13:54:11 +0530, Manivannan Sadhasivam wrote:
> This series adds PCIe RC support to the Qcom SDX55 SoC. The PCIe controller
> in SDX55 can act as both Root Complex and Endpoint but only one mode at a
> time i.e., the mode cannot be switched during runtime.
> 
> This series has been tested on Thundercomm T55 board having QCA6390 WLAN
> chipset connected to the PCIe controller. For powering up the WLAN chipset,
> an out-of-tree patch has been used since we do not have a proper driver in
> mainline to handle the power supplies.
> 
> [...]

Applied to controller/qcom, thanks!

[01/13] dt-bindings: PCI: qcom: Update maintainers entry
        https://git.kernel.org/pci/pci/c/2be28836b281
[02/13] dt-bindings: PCI: qcom: Add iommu-map properties
        https://git.kernel.org/pci/pci/c/3f5ec65040b1
[03/13] dt-bindings: PCI: qcom: Add SDX55 SoC
        https://git.kernel.org/pci/pci/c/e8ce1671127d
[04/13] dt-bindings: PCI: qcom-ep: Fix the unit address used in example
        https://git.kernel.org/pci/pci/c/f6e7fbbe5bca
[13/13] PCI: qcom: Add support for SDX55 SoC
        https://git.kernel.org/pci/pci/c/490789b12332

Thanks,
Lorenzo

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