Merge branch 'at91-3.4-cleanup2-DT2' of git://github.com/at91linux/linux-at91 into next/dt

* 'at91-3.4-cleanup2-DT2' of git://github.com/at91linux/linux-at91: (23 commits)
  ARM: at91: dt: enable usb ehci for sam9g45 and sam9x5
  ARM: at91: usb ehci add dt support
  ARM: at91: dt: enable usb ohci for sam9g20, sam9g45 amd sam9x5
  ARM: at91: usb ohci add dt support
  ARM: at91: add Shutdown Controller (SHDWC) DT support
  ARM: at91: add ram controller DT support
  ARM: at91: add RSTC (Reset Controller) dt support
  ARM: at91: always enable sam9 restart
  ARM: at91: add pmc DT support
  ARM: at91/dt: add specific DT soc init
  ARM: at91/dt: add Calao DAB-MMX daugther board support for USB-A9G20
  ARM: at91: sam9x5 add i2c DT support
  ARM: at91: sam9g45 add i2c DT support
  ARM: at91: usb_a9g20 add DT i2c support
  ARM: at91: sam9g20 add i2c DT support
  i2c/gpio: add DT support
  ARM: at91: sam9x5 add nand support
  atmel/nand: add DT support
  of/mtd/nand: add generic bindings and helpers
  of: introduce helper to manage boolean
  ...

6 files changed, 182 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 1aeaf6f2a1b..ecc81e36871 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -30,3 +30,63 @@ One interrupt per TC channel in a TC block:
 		reg = <0xfffdc000 0x100>;
 		interrupts = <26 4 27 4 28 4>;
 	};
+
+RSTC Reset Controller required properties:
+- compatible: Should be "atmel,<chip>-rstc".
+  <chip> can be "at91sam9260" or "at91sam9g45"
+- reg: Should contain registers location and length
+
+Example:
+
+	rstc@fffffd00 {
+		compatible = "atmel,at91sam9260-rstc";
+		reg = <0xfffffd00 0x10>;
+	};
+
+RAMC SDRAM/DDR Controller required properties:
+- compatible: Should be "atmel,at91sam9260-sdramc",
+			"atmel,at91sam9g45-ddramc",
+- reg: Should contain registers location and length
+  For at91sam9263 and at91sam9g45 you must specify 2 entries.
+
+Examples:
+
+	ramc0: ramc@ffffe800 {
+		compatible = "atmel,at91sam9g45-ddramc";
+		reg = <0xffffe800 0x200>;
+	};
+
+	ramc0: ramc@ffffe400 {
+		compatible = "atmel,at91sam9g45-ddramc";
+		reg = <0xffffe400 0x200
+		       0xffffe600 0x200>;
+	};
+
+SHDWC Shutdown Controller
+
+required properties:
+- compatible: Should be "atmel,<chip>-shdwc".
+  <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
+- reg: Should contain registers location and length
+
+optional properties:
+- atmel,wakeup-mode: String, operation mode of the wakeup mode.
+  Supported values are: "none", "high", "low", "any".
+- atmel,wakeup-counter: Counter on Wake-up 0 (between 0x0 and 0xf).
+
+optional at91sam9260 properties:
+- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
+
+optional at91sam9rl properties:
+- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
+- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
+
+optional at91sam9x5 properties:
+- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
+
+Example:
+
+	rstc@fffffd00 {
+		compatible = "atmel,at91sam9260-rstc";
+		reg = <0xfffffd00 0x10>;
+	};
diff --git a/Documentation/devicetree/bindings/arm/atmel-pmc.txt b/Documentation/devicetree/bindings/arm/atmel-pmc.txt
new file mode 100644
index 00000000000..389bed5056e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/atmel-pmc.txt
@@ -0,0 +1,11 @@
+* Power Management Controller (PMC)
+
+Required properties:
+- compatible: Should be "atmel,at91rm9200-pmc"
+- reg: Should contain PMC registers location and length
+
+Examples:
+	pmc: pmc@fffffc00 {
+		compatible = "atmel,at91rm9200-pmc";
+		reg = <0xfffffc00 0x100>;
+	};
diff --git a/Documentation/devicetree/bindings/gpio/gpio_i2c.txt b/Documentation/devicetree/bindings/gpio/gpio_i2c.txt
new file mode 100644
index 00000000000..4f8ec947c6b
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio_i2c.txt
@@ -0,0 +1,32 @@
+Device-Tree bindings for i2c gpio driver
+
+Required properties:
+	- compatible = "i2c-gpio";
+	- gpios: sda and scl gpio
+
+
+Optional properties:
+	- i2c-gpio,sda-open-drain: sda as open drain
+	- i2c-gpio,scl-open-drain: scl as open drain
+	- i2c-gpio,scl-output-only: scl as output only
+	- i2c-gpio,delay-us: delay between GPIO operations (may depend on each platform)
+	- i2c-gpio,timeout-ms: timeout to get data
+
+Example nodes:
+
+i2c@0 {
+	compatible = "i2c-gpio";
+	gpios = <&pioA 23 0 /* sda */
+		 &pioA 24 0 /* scl */
+		>;
+	i2c-gpio,sda-open-drain;
+	i2c-gpio,scl-open-drain;
+	i2c-gpio,delay-us = <2>;	/* ~100 kHz */
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	rv3029c2@56 {
+		compatible = "rv3029c2";
+		reg = <0x56>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
new file mode 100644
index 00000000000..5903ecf6e89
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
@@ -0,0 +1,41 @@
+Atmel NAND flash
+
+Required properties:
+- compatible : "atmel,at91rm9200-nand".
+- reg : should specify localbus address and size used for the chip,
+	and if availlable the ECC.
+- atmel,nand-addr-offset : offset for the address latch.
+- atmel,nand-cmd-offset : offset for the command latch.
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+  representing partitions.
+
+- gpios : specifies the gpio pins to control the NAND device. detect is an
+  optional gpio and may be set to 0 if not present.
+
+Optional properties:
+- nand-ecc-mode : String, operation mode of the NAND ecc mode, soft by default.
+  Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
+  "soft_bch".
+- nand-bus-width : 8 or 16 bus width if not present 8
+- nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
+
+Examples:
+nand0: nand@40000000,0 {
+	compatible = "atmel,at91rm9200-nand";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	reg = <0x40000000 0x10000000
+	       0xffffe800 0x200
+	      >;
+	atmel,nand-addr-offset = <21>;
+	atmel,nand-cmd-offset = <22>;
+	nand-on-flash-bbt;
+	nand-ecc-mode = "soft";
+	gpios = <&pioC 13 0
+		 &pioC 14 0
+		 0
+		>;
+	partition@0 {
+		...
+	};
+};
diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
new file mode 100644
index 00000000000..03855c8c492
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/nand.txt
@@ -0,0 +1,7 @@
+* MTD generic binding
+
+- nand-ecc-mode : String, operation mode of the NAND ecc mode.
+  Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
+  "soft_bch".
+- nand-bus-width : 8 or 16 bus width if not present 8
+- nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
diff --git a/Documentation/devicetree/bindings/usb/atmel-usb.txt b/Documentation/devicetree/bindings/usb/atmel-usb.txt
new file mode 100644
index 00000000000..0143d7c5b4b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/atmel-usb.txt
@@ -0,0 +1,31 @@
+Atmel SOC USB controllers
+
+OHCI
+
+Required properties:
+ - compatible: Should be "atmel,at91rm9200-ohci" for USB controllers
+   used in host mode.
+ - num-ports: Number of ports.
+ - atmel,vbus-gpio: If present, specifies a gpio that needs to be
+   activated for the bus to be powered.
+ - atmel,oc-gpio: If present, specifies a gpio that needs to be
+   activated for the overcurrent detection.
+
+usb0: ohci@00500000 {
+	compatible = "atmel,at91rm9200-ohci", "usb-ohci";
+	reg = <0x00500000 0x100000>;
+	interrupts = <20 4>;
+	num-ports = <2>;
+};
+
+EHCI
+
+Required properties:
+ - compatible: Should be "atmel,at91sam9g45-ehci" for USB controllers
+   used in host mode.
+
+usb1: ehci@00800000 {
+	compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
+	reg = <0x00800000 0x100000>;
+	interrupts = <22 4>;
+};