[PATCH v2 00/17] ARM: Initial Actions Semi S500 and S900 enablement

[PATCH v2 00/17] ARM: Initial Actions Semi S500 and S900 enablement

[Andreas Färber]

Hello,

This series adds initial support for Actions Semiconductor S500 (ARMv7) and
S900 (ARMv8) SoCs.

In addition to earlycon serial output, v2 includes a serial console driver RFC.
Guitar output is coming further along thanks to a new timer implementation, but
is still earlycon only - to be investigated. Bubblegum-96 reaches an initrd,
but a small part of the serial output just before is lost (visible in dmesg).

https://github.com/afaerber/linux/commits/bg96-next

Booting from U-Boot is straightforward on both boards:

https://en.opensuse.org/HCL:Guitar
https://en.opensuse.org/HCL:Bubblegum-96

Have a lot of fun!

Cheers,
Andreas

v1 -> v2:
* S900 DT fixes (Mark)
* Kconfig name changes (Arnd)
* Bubblegum-96 .dts rename
* Vendor prefix rename
* Minor cleanups
* Add serial driver
* Add MAINTAINERS section
* Use SPDX-License-Identifier in DT (Rob)
* Add clocksource driver

Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: mp-cs-/sSyCTpAT0ql5r2w9Jh5Rg@public.gmane.org
Cc: 96boards-Ty1hIZOCd2XuufBYgWm87A@public.gmane.org
Cc: support-8Vy/tIz7429AfugRpC6u6w@public.gmane.org
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

Andreas Färber (17):
  dt-bindings: Add vendor prefix for Actions Semi
  dt-bindings: arm: Document Actions Semi S500
  dt-bindings: timer: Document Owl timer
  clocksource: Add Owl timer
  ARM: Prepare Actions Semi S500
  ARM64: Prepare Actions Semi S900
  dt-bindings: serial: Document Actions Semi Owl UARTs
  tty: serial: Add Actions Semi Owl UART earlycon
  Documentation: kernel-parameters: Document owl earlycon
  ARM: dts: Add Actions Semi S500 and LeMaker Guitar
  dt-bindings: Add vendor prefix for uCRobotics
  dt-bindings: arm: Document Actions Semi S900
  ARM64: dts: Add Actions Semi S900 and Bubblegum-96
  MAINTAINERS: Add Actions Semi Owl section
  tty: serial: owl: Implement console driver
  ARM64: dts: actions: s900-bubblegum-96: Add fake uart5 clk
  ARM: dts: s500-guitar-bb-rev-b: Add fake uart3 clock

 Documentation/admin-guide/kernel-parameters.txt    |   6 +
 Documentation/devicetree/bindings/arm/actions.txt  |  39 ++
 .../bindings/serial/actions,owl-uart.txt           |  16 +
 .../bindings/timer/actions,owl-timer.txt           |  16 +
 .../devicetree/bindings/vendor-prefixes.txt        |   2 +
 MAINTAINERS                                        |  10 +
 arch/arm/Kconfig                                   |   2 +
 arch/arm/Makefile                                  |   1 +
 arch/arm/boot/dts/Makefile                         |   2 +
 arch/arm/boot/dts/s500-guitar-bb-rev-b.dts         |  33 +
 arch/arm/boot/dts/s500-guitar.dtsi                 |  20 +
 arch/arm/boot/dts/s500.dtsi                        | 135 ++++
 arch/arm/mach-actions/Kconfig                      |  10 +
 arch/arm/mach-actions/Makefile                     |   1 +
 arch/arm/mach-actions/owl.c                        |  28 +
 arch/arm64/Kconfig.platforms                       |   5 +
 arch/arm64/boot/dts/Makefile                       |   1 +
 arch/arm64/boot/dts/actions/Makefile               |   5 +
 arch/arm64/boot/dts/actions/s900-bubblegum-96.dts  |  38 ++
 arch/arm64/boot/dts/actions/s900.dtsi              | 109 ++++
 drivers/clocksource/Kconfig                        |   7 +
 drivers/clocksource/Makefile                       |   1 +
 drivers/clocksource/owl-timer.c                    | 146 +++++
 drivers/tty/serial/Kconfig                         |  19 +
 drivers/tty/serial/Makefile                        |   1 +
 drivers/tty/serial/owl-uart.c                      | 707 +++++++++++++++++++++
 include/uapi/linux/serial_core.h                   |   3 +
 27 files changed, 1363 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/actions.txt
 create mode 100644 Documentation/devicetree/bindings/serial/actions,owl-uart.txt
 create mode 100644 Documentation/devicetree/bindings/timer/actions,owl-timer.txt
 create mode 100644 arch/arm/boot/dts/s500-guitar-bb-rev-b.dts
 create mode 100644 arch/arm/boot/dts/s500-guitar.dtsi
 create mode 100644 arch/arm/boot/dts/s500.dtsi
 create mode 100644 arch/arm/mach-actions/Kconfig
 create mode 100644 arch/arm/mach-actions/Makefile
 create mode 100644 arch/arm/mach-actions/owl.c
 create mode 100644 arch/arm64/boot/dts/actions/Makefile
 create mode 100644 arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
 create mode 100644 arch/arm64/boot/dts/actions/s900.dtsi
 create mode 100644 drivers/clocksource/owl-timer.c
 create mode 100644 drivers/tty/serial/owl-uart.c

-- 
2.10.2

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[PATCH v2 01/17] dt-bindings: Add vendor prefix for Actions Semi

[Andreas Färber]

Actions Semiconductor was listed on NASDAQ as ACTS until Dec 16, 2016.

Cc: mp-cs@actions-semi.com
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v1 -> v2:
 * Reverted from "acts" to "actions" (cf. IAP140 "mrvl" vs. "marvell")
 
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index a76b981..64f8469 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -6,6 +6,7 @@ using them to avoid name-space collisions.
 abcn	Abracon Corporation
 abilis	Abilis Systems
 active-semi	Active-Semi International Inc
+actions	Actions Semiconductor Co., Ltd.
 ad	Avionic Design GmbH
 adapteva	Adapteva, Inc.
 adh	AD Holdings Plc.
-- 
2.10.2

[PATCH v2 02/17] dt-bindings: arm: Document Actions Semi S500

[Andreas Färber]

The Actions Semi S500 is a quad-core ARM Cortex-A9 SoC.
The LeMaker Guitar is an SODIMM-format module with that SoC.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v1 -> v2:
 * Adopted "actions" vendor prefix
 * Extended text
 
 Documentation/devicetree/bindings/arm/actions.txt | 24 +++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/actions.txt

diff --git a/Documentation/devicetree/bindings/arm/actions.txt b/Documentation/devicetree/bindings/arm/actions.txt
new file mode 100644
index 0000000..1d3782e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/actions.txt
@@ -0,0 +1,24 @@
+Actions Semi platforms device tree bindings
+-------------------------------------------
+
+
+S500 SoC
+========
+
+Required root node properties:
+
+ - compatible :  must contain "actions,s500"
+
+
+Modules:
+
+Root node property compatible must contain, depending on module:
+
+ - LeMaker Guitar: "lemaker,guitar"
+
+
+Boards:
+
+Root node property compatible must contain, depending on board:
+
+ - LeMaker Guitar Base Board rev. B: "lemaker,guitar-bb-rev-b", "lemaker,guitar"
-- 
2.10.2

[RFC v2 03/17] dt-bindings: timer: Document Owl timer

[Andreas Färber]

The Actions Semi S500 SoC contains a timer block with two timers.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v2: new
 
 .../devicetree/bindings/timer/actions,owl-timer.txt      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/actions,owl-timer.txt

diff --git a/Documentation/devicetree/bindings/timer/actions,owl-timer.txt b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
new file mode 100644
index 0000000..141bc7b
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
@@ -0,0 +1,16 @@
+Actions Semi Owl Timer
+
+Required properties:
+- compatible :  "actions,owl-timer"
+- reg        :  Offset and length of the register set for the device.
+- interrupts :  Should contain two timer interrupts.
+
+
+Example:
+
+		timer@b0168000 {
+			compatible = "actions,owl-timer";
+			reg = <0xb0168000 0x100>;
+			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+			             <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+		};
-- 
2.10.2

[PATCH v2 07/17] dt-bindings: serial: Document Actions Semi Owl UARTs

[Andreas Färber]

This UART is found on S500 and S900 SoCs.

Signed-off-by: Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
---
 v1 -> v2:
 * Adopted "actions" vendor prefix
 
 .../devicetree/bindings/serial/actions,owl-uart.txt      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/actions,owl-uart.txt

diff --git a/Documentation/devicetree/bindings/serial/actions,owl-uart.txt b/Documentation/devicetree/bindings/serial/actions,owl-uart.txt
new file mode 100644
index 0000000..aa873ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/actions,owl-uart.txt
@@ -0,0 +1,16 @@
+Actions Semi Owl UART
+
+Required properties:
+- compatible :  "actions,s500-uart", "actions,owl-uart" for S500
+                "actions,s900-uart", "actions,owl-uart" for S900
+- reg        :  Offset and length of the register set for the device.
+- interrupts :  Should contain UART interrupt.
+
+
+Example:
+
+		uart3: serial@b0126000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb0126000 0x1000>;
+			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+		};
-- 
2.10.2

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[PATCH v2 10/17] ARM: dts: Add Actions Semi S500 and LeMaker Guitar

[Andreas Färber]

Signed-off-by: Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
---
 v1 -> v2:
 * Reworded subject
 * Updated ARCH_OWL to ARCH_ACTIONS (Arnd)
 * Adopted "actions" vendor prefix
 * Dropped irq.h include
 * Added memory@0 node for Guitar SoM
 * Dropped bogus uart3 clock-frequency
 * Added device_type for CPU nodes
 * Fixed UART reg size
 * Adopted SPDX-License-Identifier (Rob)
 * Added remaining UART nodes
 * Added timer node
 
 arch/arm/boot/dts/Makefile                 |   2 +
 arch/arm/boot/dts/s500-guitar-bb-rev-b.dts |  26 ++++++
 arch/arm/boot/dts/s500-guitar.dtsi         |  20 +++++
 arch/arm/boot/dts/s500.dtsi                | 135 +++++++++++++++++++++++++++++
 4 files changed, 183 insertions(+)
 create mode 100644 arch/arm/boot/dts/s500-guitar-bb-rev-b.dts
 create mode 100644 arch/arm/boot/dts/s500-guitar.dtsi
 create mode 100644 arch/arm/boot/dts/s500.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 0118084..578a20b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -638,6 +638,8 @@ dtb-$(CONFIG_ARCH_ORION5X) += \
 	orion5x-maxtor-shared-storage-2.dtb \
 	orion5x-netgear-wnr854t.dtb \
 	orion5x-rd88f5182-nas.dtb
+dtb-$(CONFIG_ARCH_ACTIONS) += \
+	s500-guitar-bb-rev-b.dtb
 dtb-$(CONFIG_ARCH_PRIMA2) += \
 	prima2-evb.dtb
 dtb-$(CONFIG_ARCH_OXNAS) += \
diff --git a/arch/arm/boot/dts/s500-guitar-bb-rev-b.dts b/arch/arm/boot/dts/s500-guitar-bb-rev-b.dts
new file mode 100644
index 0000000..834b71d
--- /dev/null
+++ b/arch/arm/boot/dts/s500-guitar-bb-rev-b.dts
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "s500-guitar.dtsi"
+
+/ {
+	compatible = "lemaker,guitar-bb-rev-b", "lemaker,guitar", "actions,s500";
+	model = "LeMaker Guitar Base Board rev. B";
+
+	aliases {
+		serial3 = &uart3;
+	};
+
+	chosen {
+		stdout-path = "serial3:115200n8";
+	};
+};
+
+&uart3 {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/s500-guitar.dtsi b/arch/arm/boot/dts/s500-guitar.dtsi
new file mode 100644
index 0000000..ef0e7e3
--- /dev/null
+++ b/arch/arm/boot/dts/s500-guitar.dtsi
@@ -0,0 +1,20 @@
+/*
+ * LeMaker Guitar SoM
+ *
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include "s500.dtsi"
+
+/ {
+	compatible = "lemaker,guitar", "actions,s500";
+
+	/delete-node/ memory;
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x40000000>;
+	};
+};
diff --git a/arch/arm/boot/dts/s500.dtsi b/arch/arm/boot/dts/s500.dtsi
new file mode 100644
index 0000000..149bb7a
--- /dev/null
+++ b/arch/arm/boot/dts/s500.dtsi
@@ -0,0 +1,135 @@
+/*
+ * Actions Semi S500 SoC
+ *
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include "skeleton.dtsi"
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	compatible = "actions,s500";
+	interrupt-parent = <&gic>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0x0>;
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0x1>;
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0x2>;
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0x3>;
+		};
+	};
+
+	arm-pmu {
+		compatible = "arm,cortex-a9-pmu";
+		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		gic: interrupt-controller@b0021000 {
+			compatible = "arm,cortex-a9-gic";
+			reg = <0xb0021000 0x1000>,
+			      <0xb0020100 0x0100>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+
+		l2: cache-controller@b0022000 {
+			compatible = "arm,pl310-cache";
+			reg = <0xb0022000 0x1000>;
+			cache-unified;
+			cache-level = <2>;
+			interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+			arm,tag-latency = <3 3 2>;
+			arm,data-latency = <5 3 3>;
+		};
+
+		uart0: serial@b0120000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb0120000 0x2000>;
+			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart1: serial@b0122000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb0122000 0x2000>;
+			interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart2: serial@b0124000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb0126000 0x2000>;
+			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart3: serial@b0126000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb0126000 0x2000>;
+			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart4: serial@b0128000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb0128000 0x2000>;
+			interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart5: serial@b012a000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb012a000 0x2000>;
+			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart6: serial@b012c000 {
+			compatible = "actions,s500-uart", "actions,owl-uart";
+			reg = <0xb012c000 0x2000>;
+			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		timer@b0168000 {
+			compatible = "actions,owl-timer";
+			reg = <0xb0168000 0x100>;
+			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+			             <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+		};
+	};
+};
-- 
2.10.2

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[PATCH v2 11/17] dt-bindings: Add vendor prefix for uCRobotics

[Andreas Färber]

Cc: 96boards@ucrobotics.com
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v1 -> v2: unchanged
 
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 64f8469..a89dbab 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -320,6 +320,7 @@ tronfy	Tronfy
 tronsmart	Tronsmart
 truly	Truly Semiconductors Limited
 tyan	Tyan Computer Corporation
+ucrobotics	uCRobotics
 udoo	Udoo
 uniwest	United Western Technologies Corp (UniWest)
 upisemi	uPI Semiconductor Corp.
-- 
2.10.2

[PATCH v2 12/17] dt-bindings: arm: Document Actions Semi S900

[Andreas Färber]

The Actions Semi S900 is a quad-core ARM Cortex-A53 SoC.
The Bubblegum-96 is a 96Boards Consumer Edition compliant board (4/96).

Cc: 96boards@ucrobotics.com
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v1 -> v2:
 * Adopted "actions" vendor prefix
 * Extended text
 
 Documentation/devicetree/bindings/arm/actions.txt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/actions.txt b/Documentation/devicetree/bindings/arm/actions.txt
index 1d3782e..3bc7ea5 100644
--- a/Documentation/devicetree/bindings/arm/actions.txt
+++ b/Documentation/devicetree/bindings/arm/actions.txt
@@ -22,3 +22,18 @@ Boards:
 Root node property compatible must contain, depending on board:
 
  - LeMaker Guitar Base Board rev. B: "lemaker,guitar-bb-rev-b", "lemaker,guitar"
+
+
+S900 SoC
+========
+
+Required root node properties:
+
+- compatible :  must contain "actions,s900"
+
+
+Boards:
+
+Root node property compatible must contain, depending on board:
+
+ - uCRobotics Bubblegum-96: "ucrobotics,bubblegum-96"
-- 
2.10.2

[RFC v2 13/17] ARM64: dts: Add Actions Semi S900 and Bubblegum-96

[Andreas Färber]

Cc: 96boards-Ty1hIZOCd2XuufBYgWm87A@public.gmane.org
Signed-off-by: Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
---
 v1 -> v2:
 * Reworded subject
 * Added memory@0 node for Bubblegum-96 (Mark)
 * Filled in reserved-memory sub-node for Bubblegum-96 (Mark)
 * Added arm-pmu interrupt-affinity property (Mark)
 * Changed second GIC reg size 0x1000 -> 0x2000 for Bubblegum-96 (Mark)
 * Updated ARCH_OWL to ARCH_ACTIONS (Arnd)
 * Renamed s900-bubblegum96.dts to s900-bubblegum-96.dts
 * Adopted "actions" vendor prefix
 * Dropped irq.h include
 * Adopted SPDX-License-Identifier (Rob)
 
 arch/arm64/boot/dts/Makefile                      |   1 +
 arch/arm64/boot/dts/actions/Makefile              |   5 +
 arch/arm64/boot/dts/actions/s900-bubblegum-96.dts |  31 ++++++
 arch/arm64/boot/dts/actions/s900.dtsi             | 109 ++++++++++++++++++++++
 4 files changed, 146 insertions(+)
 create mode 100644 arch/arm64/boot/dts/actions/Makefile
 create mode 100644 arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
 create mode 100644 arch/arm64/boot/dts/actions/s900.dtsi

diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 080232b..d1a6b0a 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -1,3 +1,4 @@
+dts-dirs += actions
 dts-dirs += al
 dts-dirs += allwinner
 dts-dirs += altera
diff --git a/arch/arm64/boot/dts/actions/Makefile b/arch/arm64/boot/dts/actions/Makefile
new file mode 100644
index 0000000..62922d6
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/Makefile
@@ -0,0 +1,5 @@
+dtb-$(CONFIG_ARCH_ACTIONS) += s900-bubblegum-96.dtb
+
+always		:= $(dtb-y)
+subdir-y	:= $(dts-dirs)
+clean-files	:= *.dtb
diff --git a/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts b/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
new file mode 100644
index 0000000..a4ab7df
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "s900.dtsi"
+
+/ {
+	compatible = "ucrobotics,bubblegum-96", "actions,s900";
+	model = "Bubblegum-96";
+
+	aliases {
+		serial5 = &uart5;
+	};
+
+	chosen {
+		stdout-path = "serial5:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x80000000>;
+	};
+};
+
+&uart5 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/actions/s900.dtsi b/arch/arm64/boot/dts/actions/s900.dtsi
new file mode 100644
index 0000000..75e1dea2
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/s900.dtsi
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	compatible = "actions,s900";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x0>;
+			enable-method = "psci";
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x1>;
+			enable-method = "psci";
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x2>;
+			enable-method = "psci";
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x3>;
+			enable-method = "psci";
+		};
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		secmon@1f000000 {
+			reg = <0x0 0x1f000000 0x0 0x1000000>;
+			no-map;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	arm-pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		gic: interrupt-controller@e00f1000 {
+			compatible = "arm,gic-400";
+			reg = <0x0 0xe00f1000 0x0 0x1000>,
+			      <0x0 0xe00f2000 0x0 0x2000>,
+			      <0x0 0xe00f4000 0x0 0x2000>,
+			      <0x0 0xe00f6000 0x0 0x2000>;
+			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+
+		uart5: serial@e012a000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe012a000 0x0 0x1000>;
+			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+	};
+};
-- 
2.10.2

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[PATCH v2 16/17] ARM64: dts: actions: s900-bubblegum-96: Add fake uart5 clk

[Andreas Färber]

Give the serial driver a fixed-clock as input for baudrate 115200.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v2: new
 
 arch/arm64/boot/dts/actions/s900-bubblegum-96.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts b/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
index a4ab7df..e25f606 100644
--- a/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
+++ b/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
@@ -24,8 +24,15 @@
 		device_type = "memory";
 		reg = <0x0 0x0 0x0 0x80000000>;
 	};
+
+	uart5_clk: uart5-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <921600>;
+		#clock-cells = <0>;
+	};
 };
 
 &uart5 {
 	status = "okay";
+	clocks = <&uart5_clk>;
 };
-- 
2.10.2

[PATCH v2 17/17] ARM: dts: s500-guitar-bb-rev-b: Add fake uart3 clock

[Andreas Färber]

Add a fixed-clock for baudrate 115200.

Signed-off-by: Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
---
 v2: new
 
 arch/arm/boot/dts/s500-guitar-bb-rev-b.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/s500-guitar-bb-rev-b.dts b/arch/arm/boot/dts/s500-guitar-bb-rev-b.dts
index 834b71d..f6fd10a 100644
--- a/arch/arm/boot/dts/s500-guitar-bb-rev-b.dts
+++ b/arch/arm/boot/dts/s500-guitar-bb-rev-b.dts
@@ -19,8 +19,15 @@
 	chosen {
 		stdout-path = "serial3:115200n8";
 	};
+
+	uart3_clk: uart3-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <921600>;
+		#clock-cells = <0>;
+	};
 };
 
 &uart3 {
 	status = "okay";
+	clocks = <&uart3_clk>;
 };
-- 
2.10.2

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Re: [RFC v2 03/17] dt-bindings: timer: Document Owl timer

[Andreas Färber]

Am 24.02.2017 um 04:40 schrieb Andreas Färber:
> The Actions Semi S500 SoC contains a timer block with two timers.
> 
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  v2: new

Sorry, script error: nothing particularly RFC here.

Regards,
Andreas

-- 
SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)

Re: [RFC v2 13/17] ARM64: dts: Add Actions Semi S900 and Bubblegum-96

[Andreas Färber]

Am 24.02.2017 um 04:40 schrieb Andreas Färber:
> Cc: 96boards-Ty1hIZOCd2XuufBYgWm87A@public.gmane.org
> Signed-off-by: Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
> ---
>  v1 -> v2:
>  * Reworded subject
>  * Added memory@0 node for Bubblegum-96 (Mark)
>  * Filled in reserved-memory sub-node for Bubblegum-96 (Mark)
>  * Added arm-pmu interrupt-affinity property (Mark)
>  * Changed second GIC reg size 0x1000 -> 0x2000 for Bubblegum-96 (Mark)
>  * Updated ARCH_OWL to ARCH_ACTIONS (Arnd)
>  * Renamed s900-bubblegum96.dts to s900-bubblegum-96.dts
>  * Adopted "actions" vendor prefix
>  * Dropped irq.h include
>  * Adopted SPDX-License-Identifier (Rob)

Sorry, not this patch but the tty patches 15ff/17 should've been RFC.

Regards,
Andreas

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GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
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Re: [PATCH v2 10/17] ARM: dts: Add Actions Semi S500 and LeMaker Guitar

[Andreas Färber]

Am 24.02.2017 um 04:40 schrieb Andreas Färber:
> +		uart2: serial@b0124000 {
> +			compatible = "actions,s500-uart", "actions,owl-uart";
> +			reg = <0xb0126000 0x2000>;

Wrong reg offset.

> +			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
> +
> +		uart3: serial@b0126000 {
> +			compatible = "actions,s500-uart", "actions,owl-uart";
> +			reg = <0xb0126000 0x2000>;
> +			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};

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Re: [RFC v2 03/17] dt-bindings: timer: Document Owl timer

[Andreas Färber]

Am 24.02.2017 um 04:40 schrieb Andreas Färber:
> The Actions Semi S500 SoC contains a timer block with two timers.
> 
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  v2: new
>  
>  .../devicetree/bindings/timer/actions,owl-timer.txt      | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/timer/actions,owl-timer.txt
> 
> diff --git a/Documentation/devicetree/bindings/timer/actions,owl-timer.txt b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
> new file mode 100644
> index 0000000..141bc7b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
> @@ -0,0 +1,16 @@
> +Actions Semi Owl Timer
> +
> +Required properties:
> +- compatible :  "actions,owl-timer"
> +- reg        :  Offset and length of the register set for the device.
> +- interrupts :  Should contain two timer interrupts.
> +
> +
> +Example:
> +
> +		timer@b0168000 {
> +			compatible = "actions,owl-timer";
> +			reg = <0xb0168000 0x100>;
> +			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
> +			             <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
> +		};

I need to modify these bindings for upcoming v3 in the following ways:

* "actions,s500-timer", "actions,owl-timer" to deal with S500 vs. S900
differences while keeping a single driver registration (or would two
registrations be preferred, dropping the second compatible? they do
share a common subset)

* Use named interrupts to deal with 2x 2Hz + 2x Timer vs. 4x Timer for
complete hardware description

Regards,
Andreas

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Re: [PATCH v2 01/17] dt-bindings: Add vendor prefix for Actions Semi

[Andreas Färber]

Am 24.02.2017 um 04:40 schrieb Andreas Färber:
> Actions Semiconductor was listed on NASDAQ as ACTS until Dec 16, 2016.
> 
> Cc: mp-cs@actions-semi.com
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  v1 -> v2:
>  * Reverted from "acts" to "actions" (cf. IAP140 "mrvl" vs. "marvell")
>  
>  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> index a76b981..64f8469 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> @@ -6,6 +6,7 @@ using them to avoid name-space collisions.
>  abcn	Abracon Corporation
>  abilis	Abilis Systems
>  active-semi	Active-Semi International Inc
> +actions	Actions Semiconductor Co., Ltd.

If the use of "actions" gets ack'ed, I realize it should move one line up.

Regards,
Andreas

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Re: [PATCH v2 01/17] dt-bindings: Add vendor prefix for Actions Semi

[Rob Herring]

On Mon, Feb 27, 2017 at 03:57:19PM +0100, Andreas Färber wrote:
> Am 24.02.2017 um 04:40 schrieb Andreas Färber:
> > Actions Semiconductor was listed on NASDAQ as ACTS until Dec 16, 2016.
> > 
> > Cc: mp-cs@actions-semi.com
> > Signed-off-by: Andreas Färber <afaerber@suse.de>
> > ---
> >  v1 -> v2:
> >  * Reverted from "acts" to "actions" (cf. IAP140 "mrvl" vs. "marvell")
> >  
> >  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> > index a76b981..64f8469 100644
> > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> > @@ -6,6 +6,7 @@ using them to avoid name-space collisions.
> >  abcn	Abracon Corporation
> >  abilis	Abilis Systems
> >  active-semi	Active-Semi International Inc
> > +actions	Actions Semiconductor Co., Ltd.
> 
> If the use of "actions" gets ack'ed, I realize it should move one line up.

With that fix,

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

Re: [PATCH v2 02/17] dt-bindings: arm: Document Actions Semi S500

[Rob Herring]

On Fri, Feb 24, 2017 at 04:40:40AM +0100, Andreas Färber wrote:
> The Actions Semi S500 is a quad-core ARM Cortex-A9 SoC.
> The LeMaker Guitar is an SODIMM-format module with that SoC.
> 
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  v1 -> v2:
>  * Adopted "actions" vendor prefix
>  * Extended text
>  
>  Documentation/devicetree/bindings/arm/actions.txt | 24 +++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/actions.txt

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

Re: [RFC v2 03/17] dt-bindings: timer: Document Owl timer

[Rob Herring]

On Mon, Feb 27, 2017 at 03:40:07PM +0100, Andreas Färber wrote:
> Am 24.02.2017 um 04:40 schrieb Andreas Färber:
> > The Actions Semi S500 SoC contains a timer block with two timers.
> > 
> > Signed-off-by: Andreas Färber <afaerber@suse.de>
> > ---
> >  v2: new
> >  
> >  .../devicetree/bindings/timer/actions,owl-timer.txt      | 16 ++++++++++++++++
> >  1 file changed, 16 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/timer/actions,owl-timer.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/timer/actions,owl-timer.txt b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
> > new file mode 100644
> > index 0000000..141bc7b
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
> > @@ -0,0 +1,16 @@
> > +Actions Semi Owl Timer
> > +
> > +Required properties:
> > +- compatible :  "actions,owl-timer"
> > +- reg        :  Offset and length of the register set for the device.
> > +- interrupts :  Should contain two timer interrupts.
> > +
> > +
> > +Example:
> > +
> > +		timer@b0168000 {
> > +			compatible = "actions,owl-timer";
> > +			reg = <0xb0168000 0x100>;
> > +			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
> > +			             <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
> > +		};
> 
> I need to modify these bindings for upcoming v3 in the following ways:
> 
> * "actions,s500-timer", "actions,owl-timer" to deal with S500 vs. S900
> differences while keeping a single driver registration (or would two
> registrations be preferred, dropping the second compatible? they do
> share a common subset)

The former is fine.

> 
> * Use named interrupts to deal with 2x 2Hz + 2x Timer vs. 4x Timer for
> complete hardware description

The compatible should imply this difference.

Rob

Re: [PATCH v2 07/17] dt-bindings: serial: Document Actions Semi Owl UARTs

[Rob Herring]

On Fri, Feb 24, 2017 at 04:40:45AM +0100, Andreas Färber wrote:
> This UART is found on S500 and S900 SoCs.
> 
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  v1 -> v2:
>  * Adopted "actions" vendor prefix
>  
>  .../devicetree/bindings/serial/actions,owl-uart.txt      | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/serial/actions,owl-uart.txt

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

Re: [PATCH v2 11/17] dt-bindings: Add vendor prefix for uCRobotics

[Rob Herring]

On Fri, Feb 24, 2017 at 04:40:49AM +0100, Andreas Färber wrote:
> Cc: 96boards@ucrobotics.com
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  v1 -> v2: unchanged
>  
>  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
>  1 file changed, 1 insertion(+)

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

Re: [PATCH v2 12/17] dt-bindings: arm: Document Actions Semi S900

[Rob Herring]

On Fri, Feb 24, 2017 at 04:40:50AM +0100, Andreas Färber wrote:
> The Actions Semi S900 is a quad-core ARM Cortex-A53 SoC.
> The Bubblegum-96 is a 96Boards Consumer Edition compliant board (4/96).
> 
> Cc: 96boards@ucrobotics.com
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  v1 -> v2:
>  * Adopted "actions" vendor prefix
>  * Extended text
>  
>  Documentation/devicetree/bindings/arm/actions.txt | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

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