Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:

 - Improvements to the tlb_dump code
 - KVM fixes
 - Add support for appended DTB
 - Minor improvements to the R12000 support
 - Minor improvements to the R12000 support
 - Various platform improvments for BCM47xx
 - The usual pile of minor cleanups
 - A number of BPF fixes and improvments
 - Some improvments to the support for R3000 and DECstations
 - Some improvments to the ATH79 platform support
 - A major patchset for the JZ4740 SOC adding support for the CI20 platform
 - Add support for the Pistachio SOC
 - Minor BMIPS/BCM63xx platform support improvments.
 - Avoid "SYNC 0" as memory barrier when unlocking spinlocks
 - Add support for the XWR-1750 board.
 - Paul's __cpuinit/__cpuinitdata cleanups.
 - New Malta CPU board support large memory so enable ZONE_DMA32.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
  MIPS: spinlock: Adjust arch_spin_lock back-off time
  MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
  MIPS: BCM47xx: Simplify handling SPROM revisions
  MIPS: Cobalt Don't use module_init in non-modular MTD registration.
  MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
  MIPS: use for_each_sg()
  MIPS: BCM47xx: Don't select BCMA_HOST_PCI
  MIPS: BCM47xx: Add helper variable for storing NVRAM length
  MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
  MIPS: Replace smp_mb with release barrier function in unlocks.
  MIPS: i8259: DT support
  MIPS: Malta: Basic DT plumbing
  MIPS: include errno.h for ENODEV in mips-cm.h
  MIPS: Define GCR_GIC_STATUS register fields
  MIPS: BPF: Introduce BPF ASM helpers
  MIPS: BPF: Use BPF register names to describe the ABI
  MIPS: BPF: Move register definition to the BPF header
  MIPS: net: BPF: Replace RSIZE with SZREG
  MIPS: BPF: Free up some callee-saved registers
  MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
  ...

11 files changed, 336 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/ingenic,cgu.txt b/Documentation/devicetree/bindings/clock/ingenic,cgu.txt
new file mode 100644
index 0000000..f8d4134
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ingenic,cgu.txt
@@ -0,0 +1,53 @@
+Ingenic SoC CGU binding
+
+The CGU in an Ingenic SoC provides all the clocks generated on-chip. It
+typically includes a variety of PLLs, multiplexers, dividers & gates in order
+to provide many different clock signals derived from only 2 external source
+clocks.
+
+Required properties:
+- compatible : Should be "ingenic,<soctype>-cgu".
+  For example "ingenic,jz4740-cgu" or "ingenic,jz4780-cgu".
+- reg : The address & length of the CGU registers.
+- clocks : List of phandle & clock specifiers for clocks external to the CGU.
+  Two such external clocks should be specified - first the external crystal
+  "ext" and second the RTC clock source "rtc".
+- clock-names : List of name strings for the external clocks.
+- #clock-cells: Should be 1.
+  Clock consumers specify this argument to identify a clock. The valid values
+  may be found in <dt-bindings/clock/<soctype>-cgu.h>.
+
+Example SoC include file:
+
+/ {
+	cgu: jz4740-cgu {
+		compatible = "ingenic,jz4740-cgu";
+		reg = <0x10000000 0x100>;
+		#clock-cells = <1>;
+	};
+
+	uart0: serial@10030000 {
+		clocks = <&cgu JZ4740_CLK_UART0>;
+	};
+};
+
+Example board file:
+
+/ {
+	ext: clock@0 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <12000000>;
+	};
+
+	rtc: clock@1 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+	};
+
+	&cgu {
+		clocks = <&ext> <&rtc>;
+		clock-names: "ext", "rtc";
+	};
+};
diff --git a/Documentation/devicetree/bindings/clock/qca,ath79-pll.txt b/Documentation/devicetree/bindings/clock/qca,ath79-pll.txt
new file mode 100644
index 0000000..e0fc2c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qca,ath79-pll.txt
@@ -0,0 +1,33 @@
+Binding for Qualcomm Atheros AR7xxx/AR9XXX PLL controller
+
+The PPL controller provides the 3 main clocks of the SoC: CPU, DDR and AHB.
+
+Required Properties:
+- compatible: has to be "qca,<soctype>-cpu-intc" and one of the following
+  fallbacks:
+  - "qca,ar7100-pll"
+  - "qca,ar7240-pll"
+  - "qca,ar9130-pll"
+  - "qca,ar9330-pll"
+  - "qca,ar9340-pll"
+  - "qca,qca9550-pll"
+- reg: Base address and size of the controllers memory area
+- clock-names: Name of the input clock, has to be "ref"
+- clocks: phandle of the external reference clock
+- #clock-cells: has to be one
+
+Optional properties:
+- clock-output-names: should be "cpu", "ddr", "ahb"
+
+Example:
+
+	memory-controller@18050000 {
+		compatible = "qca,ar9132-ppl", "qca,ar9130-pll";
+		reg = <0x18050000 0x20>;
+
+		clock-names = "ref";
+		clocks = <&extosc>;
+
+		#clock-cells = <1>;
+		clock-output-names = "cpu", "ddr", "ahb";
+	};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-ath79.txt b/Documentation/devicetree/bindings/gpio/gpio-ath79.txt
new file mode 100644
index 0000000..c522851
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-ath79.txt
@@ -0,0 +1,38 @@
+Binding for Qualcomm Atheros AR7xxx/AR9xxx GPIO controller
+
+Required properties:
+- compatible: has to be "qca,<soctype>-gpio" and one of the following
+  fallbacks:
+  - "qca,ar7100-gpio"
+  - "qca,ar9340-gpio"
+- reg: Base address and size of the controllers memory area
+- gpio-controller : Marks the device node as a GPIO controller.
+- #gpio-cells : Should be two. The first cell is the pin number and the
+  second cell is used to specify optional parameters.
+- ngpios: Should be set to the number of GPIOs available on the SoC.
+
+Optional properties:
+- interrupt-parent: phandle of the parent interrupt controller.
+- interrupts: Interrupt specifier for the controllers interrupt.
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode interrupt
+		     source, should be 2
+
+Please refer to interrupts.txt in this directory for details of the common
+Interrupt Controllers bindings used by client devices.
+
+Example:
+
+	gpio@18040000 {
+		compatible = "qca,ar9132-gpio", "qca,ar7100-gpio";
+		reg = <0x18040000 0x30>;
+		interrupts = <2>;
+
+		ngpios = <22>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/ingenic,intc.txt b/Documentation/devicetree/bindings/interrupt-controller/ingenic,intc.txt
new file mode 100644
index 0000000..5f89fb6
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/ingenic,intc.txt
@@ -0,0 +1,28 @@
+Ingenic SoC Interrupt Controller
+
+Required properties:
+
+- compatible : should be "ingenic,<socname>-intc". Valid strings are:
+    ingenic,jz4740-intc
+    ingenic,jz4770-intc
+    ingenic,jz4775-intc
+    ingenic,jz4780-intc
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value shall be 1.
+- interrupt-parent : phandle of the CPU interrupt controller.
+- interrupts : Specifies the CPU interrupt the controller is connected to.
+
+Example:
+
+intc: interrupt-controller@10001000 {
+	compatible = "ingenic,jz4740-intc";
+	reg = <0x10001000 0x14>;
+
+	interrupt-controller;
+	#interrupt-cells = <1>;
+
+	interrupt-parent = <&cpuintc>;
+	interrupts = <2>;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-cpu-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-cpu-intc.txt
new file mode 100644
index 0000000..aabce78
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-cpu-intc.txt
@@ -0,0 +1,44 @@
+Binding for Qualcomm Atheros AR7xxx/AR9XXX CPU interrupt controller
+
+On most SoC the IRQ controller need to flush the DDR FIFO before running
+the interrupt handler of some devices. This is configured using the
+qca,ddr-wb-channels and qca,ddr-wb-channel-interrupts properties.
+
+Required Properties:
+
+- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-cpu-intc"
+  as fallback
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode interrupt
+		     source, should be 1 for intc
+
+Please refer to interrupts.txt in this directory for details of the common
+Interrupt Controllers bindings used by client devices.
+
+Optional Properties:
+
+- qca,ddr-wb-channel-interrupts: List of the interrupts needing a write
+  buffer flush
+- qca,ddr-wb-channels: List of phandles to the write buffer channels for
+  each interrupt. If qca,ddr-wb-channel-interrupts is not present the interrupt
+  default to the entry's index.
+
+Example:
+
+	interrupt-controller {
+		compatible = "qca,ar9132-cpu-intc", "qca,ar7100-cpu-intc";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		qca,ddr-wb-channel-interrupts = <2>, <3>, <4>, <5>;
+		qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>,
+					<&ddr_ctrl 0>, <&ddr_ctrl 1>;
+	};
+
+	...
+
+	ddr_ctrl: memory-controller@18000000 {
+		...
+		#qca,ddr-wb-channel-cells = <1>;
+	};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
new file mode 100644
index 0000000..391717a
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
@@ -0,0 +1,30 @@
+Binding for Qualcomm Atheros AR7xxx/AR9XXX MISC interrupt controller
+
+The MISC interrupt controller is a secondary controller for lower priority
+interrupt.
+
+Required Properties:
+- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-misc-intc"
+  as fallback
+- reg: Base address and size of the controllers memory area
+- interrupt-parent: phandle of the parent interrupt controller.
+- interrupts: Interrupt specifier for the controllers interrupt.
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode interrupt
+		     source, should be 1
+
+Please refer to interrupts.txt in this directory for details of the common
+Interrupt Controllers bindings used by client devices.
+
+Example:
+
+	interrupt-controller@18060010 {
+		compatible = "qca,ar9132-misc-intc", qca,ar7100-misc-intc";
+		reg = <0x18060010 0x4>;
+
+		interrupt-parent = <&cpuintc>;
+		interrupts = <6>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
diff --git a/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt b/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt
new file mode 100644
index 0000000..efe35a06
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt
@@ -0,0 +1,35 @@
+Binding for Qualcomm  Atheros AR7xxx/AR9xxx DDR controller
+
+The DDR controller of the ARxxx and AR9xxx families provides an interface
+to flush the FIFO between various devices and the DDR. This is mainly used
+by the IRQ controller to flush the FIFO before running the interrupt handler
+of such devices.
+
+Required properties:
+
+- compatible: has to be "qca,<soc-type>-ddr-controller",
+  "qca,[ar7100|ar7240]-ddr-controller" as fallback.
+  On SoC with PCI support "qca,ar7100-ddr-controller" should be used as
+  fallback, otherwise "qca,ar7240-ddr-controller" should be used.
+- reg: Base address and size of the controllers memory area
+- #qca,ddr-wb-channel-cells: has to be 1, the index of the write buffer
+  channel
+
+Example:
+
+	ddr_ctrl: memory-controller@18000000 {
+		compatible = "qca,ar9132-ddr-controller",
+				"qca,ar7240-ddr-controller";
+		reg = <0x18000000 0x100>;
+
+		#qca,ddr-wb-channel-cells = <1>;
+	};
+
+	...
+
+	interrupt-controller {
+		...
+		qca,ddr-wb-channel-interrupts = <2>, <3>, <4>, <5>;
+		qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>,
+					<&ddr_ctrl 0>, <&ddr_ctrl 1>;
+	};
diff --git a/Documentation/devicetree/bindings/mips/ath79-soc.txt b/Documentation/devicetree/bindings/mips/ath79-soc.txt
new file mode 100644
index 0000000..88a12a4
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/ath79-soc.txt
@@ -0,0 +1,21 @@
+Binding for Qualcomm Atheros AR7xxx/AR9XXX SoC
+
+Each device tree must specify a compatible value for the AR SoC
+it uses in the compatible property of the root node. The compatible
+value must be one of the following values:
+
+- qca,ar7130
+- qca,ar7141
+- qca,ar7161
+- qca,ar7240
+- qca,ar7241
+- qca,ar7242
+- qca,ar9130
+- qca,ar9132
+- qca,ar9330
+- qca,ar9331
+- qca,ar9341
+- qca,ar9342
+- qca,ar9344
+- qca,qca9556
+- qca,qca9558
diff --git a/Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt b/Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt
new file mode 100644
index 0000000..afbc7e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt
@@ -0,0 +1,29 @@
+IMG Pistachio USB PHY
+=====================
+
+Required properties:
+--------------------
+ - compatible: Must be "img,pistachio-usb-phy".
+ - #phy-cells: Must be 0.  See ./phy-bindings.txt for details.
+ - clocks: Must contain an entry for each entry in clock-names.
+   See ../clock/clock-bindings.txt for details.
+ - clock-names: Must include "usb_phy".
+ - img,cr-top: Must constain a phandle to the CR_TOP syscon node.
+ - img,refclk: Indicates the reference clock source for the USB PHY.
+   See <dt-bindings/phy/phy-pistachio-usb.h> for a list of valid values.
+
+Optional properties:
+--------------------
+ - phy-supply: USB VBUS supply.  Must supply 5.0V.
+
+Example:
+--------
+usb_phy: usb-phy {
+	compatible = "img,pistachio-usb-phy";
+	clocks = <&clk_core CLK_USB_PHY>;
+	clock-names = "usb_phy";
+	phy-supply = <&usb_vbus>;
+	img,refclk = <REFCLK_CLK_CORE>;
+	img,cr-top = <&cr_top>;
+	#phy-cells = <0>;
+};
diff --git a/Documentation/devicetree/bindings/serial/ingenic,uart.txt b/Documentation/devicetree/bindings/serial/ingenic,uart.txt
new file mode 100644
index 0000000..c2d3b3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/ingenic,uart.txt
@@ -0,0 +1,22 @@
+* Ingenic SoC UART
+
+Required properties:
+- compatible : "ingenic,jz4740-uart" or "ingenic,jz4780-uart"
+- reg : offset and length of the register set for the device.
+- interrupts : should contain uart interrupt.
+- clocks : phandles to the module & baud clocks.
+- clock-names: tuple listing input clock names.
+	Required elements: "baud", "module"
+
+Example:
+
+uart0: serial@10030000 {
+	compatible = "ingenic,jz4740-uart";
+	reg = <0x10030000 0x100>;
+
+	interrupt-parent = <&intc>;
+	interrupts = <9>;
+
+	clocks = <&ext>, <&cgu JZ4740_CLK_UART0>;
+	clock-names = "baud", "module";
+};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 8e8f4bc..7b607761 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -106,6 +106,7 @@ ibm	International Business Machines (IBM)
 idt	Integrated Device Technologies, Inc.
 iom	Iomega Corporation
 img	Imagination Technologies Ltd.
+ingenic	Ingenic Semiconductor
 innolux	Innolux Corporation
 intel	Intel Corporation
 intercontrol	Inter Control Group
@@ -161,6 +162,7 @@ powervr	PowerVR (deprecated, use img)
 qca	Qualcomm Atheros, Inc.
 qcom	Qualcomm Technologies, Inc
 qemu	QEMU, a generic and open source machine emulator and virtualizer
+qi	Qi Hardware
 qnap	QNAP Systems, Inc.
 radxa	Radxa
 raidsonic	RaidSonic Technology GmbH
@@ -206,6 +208,7 @@ tlm	Trusted Logic Mobility
 toradex	Toradex AG
 toshiba	Toshiba Corporation
 toumaz	Toumaz
+tplink	TP-LINK Technologies Co., Ltd.
 truly	Truly Semiconductors Limited
 usi	Universal Scientific Industrial Co., Ltd.
 v3	V3 Semiconductor