[PATCH V3 0/7] APM X-Gene SoC platform device tree cleanup

[PATCH V3 0/7] APM X-Gene SoC platform device tree cleanup

[Feng Kan]

This sums up the dts changes of the recent committed drivers into the kernel.
This will grant PMU, reboot, USB and gpio functionalities to the platform.
These patches are all based on existing and approved driver that is in the
kernel tree today.

V3 Changes:
	- add comments regarding usb node
	- change dwgpio node name to gpio

V2 Changes:
        - add dma-coherent attribute for usb node.

Feng Kan (7):
  arm64: dts: Add APM X-Gene USB DTS node
  Documentation: arm64: add SCU dts binding documentation to linux
    kernel
  arm64: dts: Add X-Gene reboot driver dts node
  arm64: dts: Add Designware GPIO dts binding to APM X-Gene platform
  arm64: dts: Add APM X-Gene SoC GFC GPIO controller DTS entries
  Documentation: arm: pmu: Add Potenza PMU binding
  arm64: dts: Add PMU node for APM X-Gene Storm SOC

 Documentation/devicetree/bindings/arm/apm/scu.txt |   17 ++++++
 Documentation/devicetree/bindings/arm/pmu.txt     |    1 +
 arch/arm64/boot/dts/apm/apm-storm.dtsi            |   58 +++++++++++++++++++++
 3 files changed, 76 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/apm/scu.txt

[PATCH V3 1/7] arm64: dts: Add APM X-Gene USB DTS node

[Feng Kan]

This parch adds the device tree nodes for APM X-Gnene USB host controller.
Since X-Gene SOC supports maximum 2 USB ports, 2 dts node are added.

Signed-off-by: Bao Truong <btruong@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
---
 arch/arm64/boot/dts/apm/apm-storm.dtsi |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index f1ad9c2..4b2ec83 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -587,6 +587,25 @@
 			phy-names = "sata-phy";
 		};
 
+		/*
+		 * Do not change dwusb name, coded for backward compatibility
+		 */
+		usb0: dwusb@19000000 {
+			status = "disabled";
+			compatible = "xhci-platform";
+			reg =  <0x0 0x19000000 0x0 0x100000>;
+			interrupts = <0x0 0x89 0x4>;
+			dma-coherent;
+		};
+
+		usb1: dwusb@19800000 {
+			status = "disabled";
+			compatible = "xhci-platform";
+			reg =  <0x0 0x19800000 0x0 0x100000>;
+			interrupts = <0x0 0x8a 0x4>;
+			dma-coherent;
+		};
+
 		rtc: rtc@10510000 {
 			compatible = "apm,xgene-rtc";
 			reg = <0x0 0x10510000 0x0 0x400>;
-- 
1.7.1

[PATCH V3 2/7] Documentation: arm64: add SCU dts binding documentation to linux kernel

[Feng Kan]

This add documentation for the SCU system clock unit device tree binding
to the kernel.

Signed-off-by: Feng Kan <fkan@apm.com>
---
 Documentation/devicetree/bindings/arm/apm/scu.txt |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/apm/scu.txt

diff --git a/Documentation/devicetree/bindings/arm/apm/scu.txt b/Documentation/devicetree/bindings/arm/apm/scu.txt
new file mode 100644
index 0000000..b45be06
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/apm/scu.txt
@@ -0,0 +1,17 @@
+APM X-GENE SoC series SCU Registers
+
+This system clock unit contain various register that control block resets,
+clock enable/disables, clock divisors and other deepsleep registers.
+
+Properties:
+ - compatible : should contain two values. First value must be:
+		   - "apm,xgene-scu"
+		second value must be always "syscon".
+
+ - reg : offset and length of the register set.
+
+Example :
+	scu: system-clk-controller@17000000 {
+		compatible = "apm,xgene-scu","syscon";
+		reg = <0x0 0x17000000 0x0 0x400>;
+	};
-- 
1.7.1

[PATCH V3 3/7] arm64: dts: Add X-Gene reboot driver dts node

[Feng Kan]

Add X-Gene platform reboot driver dts node.

Signed-off-by: Feng Kan <fkan@apm.com>
---
 arch/arm64/boot/dts/apm/apm-storm.dtsi |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index 4b2ec83..f31e8df 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -103,6 +103,11 @@
 		#size-cells = <2>;
 		ranges;
 
+		scu: system-clk-controller@17000000 {
+			compatible = "apm,xgene-scu","syscon";
+			reg = <0x0 0x17000000 0x0 0x400>;
+		};
+
 		clocks {
 			#address-cells = <2>;
 			#size-cells = <2>;
@@ -354,6 +359,13 @@
 			};
 		};
 
+		reboot: reboot@17000014 {
+			compatible = "syscon-reboot";
+			regmap = <&scu>;
+			offset = <0x14>;
+			mask = <0x1>;
+		};
+
 		pcie0: pcie@1f2b0000 {
 			status = "disabled";
 			device_type = "pci";
-- 
1.7.1

[PATCH V3 4/7] arm64: dts: Add Designware GPIO dts binding to APM X-Gene platform

[Feng Kan]

Add Designware GPIO dts binding to APM X-Gene platform

Signed-off-by: Feng Kan <fkan@apm.com>
---
 arch/arm64/boot/dts/apm/apm-storm.dtsi |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index f31e8df..a58f9a2 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -525,6 +525,21 @@
 			interrupts = <0x0 0x4f 0x4>;
 		};
 
+		dwgpio: gpio@1c024000 {
+			compatible = "snps,dw-apb-gpio";
+			reg = <0x0 0x1c024000 0x0 0x1000>;
+			reg-io-width = <4>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			porta: gpio-controller@0 {
+				compatible = "snps,dw-apb-gpio-port";
+				gpio-controller;
+				snps,nr-gpios = <32>;
+				reg = <0>;
+			};
+		};
+
 		phy1: phy@1f21a000 {
 			compatible = "apm,xgene-phy";
 			reg = <0x0 0x1f21a000 0x0 0x100>;
-- 
1.7.1

[PATCH V3 5/7] arm64: dts: Add APM X-Gene SoC GFC GPIO controller DTS entries

[Feng Kan]

Add the flash controller muxed gpio dts node for APM X-Gene SoC platform.

Signed-off-by: Feng Kan <fkan@apm.com>
---
 arch/arm64/boot/dts/apm/apm-storm.dtsi |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index a58f9a2..adea254 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -540,6 +540,13 @@
 			};
 		};
 
+		gfcgpio: gpio0@1701c000 {
+			compatible = "apm,xgene-gpio";
+			reg = <0x0 0x1701c000 0x0 0x40>;
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+
 		phy1: phy@1f21a000 {
 			compatible = "apm,xgene-phy";
 			reg = <0x0 0x1f21a000 0x0 0x100>;
-- 
1.7.1

[PATCH V3 6/7] Documentation: arm: pmu: Add Potenza PMU binding

[Feng Kan]

This patch documents the compatible string for APM X-Gene Potenza CPU's PMU.

Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
---
 Documentation/devicetree/bindings/arm/pmu.txt |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/pmu.txt b/Documentation/devicetree/bindings/arm/pmu.txt
index 75ef91d..6d268b3 100644
--- a/Documentation/devicetree/bindings/arm/pmu.txt
+++ b/Documentation/devicetree/bindings/arm/pmu.txt
@@ -7,6 +7,7 @@ representation in the device tree should be done as under:-
 Required properties:
 
 - compatible : should be one of
+	"apm,potenza-pmu"
 	"arm,armv8-pmuv3"
 	"arm,cortex-a17-pmu"
 	"arm,cortex-a15-pmu"
-- 
1.7.1

[PATCH V3 7/7] arm64: dts: Add PMU node for APM X-Gene Storm SOC

[Feng Kan]

This patch adds the PMU device tree node for APM X-Gene Storm SOC.

Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
---
 arch/arm64/boot/dts/apm/apm-storm.dtsi |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index adea254..9d00dd4 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -97,6 +97,11 @@
 		clock-frequency = <50000000>;
 	};
 
+	pmu {
+		compatible = "apm,potenza-pmu", "arm,armv8-pmuv3";
+		interrupts = <1 12 0xff04>;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <2>;
-- 
1.7.1