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https://github.com/Dasharo/linux.git
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Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: More device tree support updates" from Olof Johansson:
"This branch contains a number of updates for device tree support on
several ARM platforms, in particular:
* AT91 continues the device tree conversion adding support for a
number of on-chip drivers and other functionality
* ux500 adds probing of some of the core SoC blocks through device
tree
* Initial device tree support for ST SPEAr600 platforms
* kirkwood continues the conversion to device-tree probing"
Manually merge arch/arm/mach-ux500/Kconfig due to MACH_U8500 rename, and
drivers/usb/gadget/at91_udc.c due to header file include cleanups.
Also do an "evil merge" for the MACH_U8500 config option rename that the
affected RMI4 touchscreen driver in staging. It's called MACH_MOP500
now, and it was missed during previous merges.
* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
ARM: SPEAr600: Add device-tree support to SPEAr600 boards
ARM: ux500: Provide local timer support for Device Tree
ARM: ux500: Enable PL022 SSP Controller in Device Tree
ARM: ux500: Enable PL310 Level 2 Cache Controller in Device Tree
ARM: ux500: Enable PL011 AMBA UART Controller for Device Tree
ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device Tree
ARM: ux500: db8500: list most devices in the snowball device tree
ARM: ux500: split dts file for snowball into generic part
ARM: ux500: combine the board init functions for DT boot
ARM: ux500: Initial Device Tree support for Snowball
ARM: ux500: CONFIG: Enable Device Tree support for future endeavours
ARM: kirkwood: use devicetree for rtc-mv
ARM: kirkwood: rtc-mv devicetree bindings
ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0
ARM: kirkwood: fdt: facilitate new boards during fdt migration
ARM: kirkwood: fdt: absorb kirkwood_init()
ARM: kirkwood: fdt: use mrvl ticker symbol
ARM: orion: wdt: use resource vice direct access
ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data.
ARM: orion: spi: remove enable_clock_fix which is not used
...
This commit is contained in:
@@ -30,3 +30,63 @@ One interrupt per TC channel in a TC block:
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reg = <0xfffdc000 0x100>;
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interrupts = <26 4 27 4 28 4>;
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};
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RSTC Reset Controller required properties:
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- compatible: Should be "atmel,<chip>-rstc".
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<chip> can be "at91sam9260" or "at91sam9g45"
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- reg: Should contain registers location and length
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Example:
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rstc@fffffd00 {
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compatible = "atmel,at91sam9260-rstc";
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reg = <0xfffffd00 0x10>;
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};
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RAMC SDRAM/DDR Controller required properties:
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- compatible: Should be "atmel,at91sam9260-sdramc",
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"atmel,at91sam9g45-ddramc",
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- reg: Should contain registers location and length
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For at91sam9263 and at91sam9g45 you must specify 2 entries.
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Examples:
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ramc0: ramc@ffffe800 {
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compatible = "atmel,at91sam9g45-ddramc";
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reg = <0xffffe800 0x200>;
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};
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ramc0: ramc@ffffe400 {
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compatible = "atmel,at91sam9g45-ddramc";
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reg = <0xffffe400 0x200
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0xffffe600 0x200>;
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};
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SHDWC Shutdown Controller
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required properties:
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- compatible: Should be "atmel,<chip>-shdwc".
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<chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
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- reg: Should contain registers location and length
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optional properties:
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- atmel,wakeup-mode: String, operation mode of the wakeup mode.
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Supported values are: "none", "high", "low", "any".
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- atmel,wakeup-counter: Counter on Wake-up 0 (between 0x0 and 0xf).
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optional at91sam9260 properties:
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- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
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optional at91sam9rl properties:
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- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
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- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
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optional at91sam9x5 properties:
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- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
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Example:
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rstc@fffffd00 {
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compatible = "atmel,at91sam9260-rstc";
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reg = <0xfffffd00 0x10>;
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};
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11
Documentation/devicetree/bindings/arm/atmel-pmc.txt
Normal file
11
Documentation/devicetree/bindings/arm/atmel-pmc.txt
Normal file
@@ -0,0 +1,11 @@
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* Power Management Controller (PMC)
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Required properties:
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- compatible: Should be "atmel,at91rm9200-pmc"
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- reg: Should contain PMC registers location and length
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Examples:
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pmc: pmc@fffffc00 {
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compatible = "atmel,at91rm9200-pmc";
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reg = <0xfffffc00 0x100>;
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};
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8
Documentation/devicetree/bindings/arm/spear.txt
Normal file
8
Documentation/devicetree/bindings/arm/spear.txt
Normal file
@@ -0,0 +1,8 @@
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ST SPEAr Platforms Device Tree Bindings
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---------------------------------------
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Boards with the ST SPEAr600 SoC shall have the following properties:
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Required root node property:
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compatible = "st,spear600";
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32
Documentation/devicetree/bindings/gpio/gpio_i2c.txt
Normal file
32
Documentation/devicetree/bindings/gpio/gpio_i2c.txt
Normal file
@@ -0,0 +1,32 @@
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Device-Tree bindings for i2c gpio driver
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Required properties:
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- compatible = "i2c-gpio";
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- gpios: sda and scl gpio
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Optional properties:
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- i2c-gpio,sda-open-drain: sda as open drain
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- i2c-gpio,scl-open-drain: scl as open drain
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- i2c-gpio,scl-output-only: scl as output only
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- i2c-gpio,delay-us: delay between GPIO operations (may depend on each platform)
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- i2c-gpio,timeout-ms: timeout to get data
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Example nodes:
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i2c@0 {
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compatible = "i2c-gpio";
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gpios = <&pioA 23 0 /* sda */
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&pioA 24 0 /* scl */
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>;
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i2c-gpio,sda-open-drain;
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i2c-gpio,scl-open-drain;
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i2c-gpio,delay-us = <2>; /* ~100 kHz */
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#address-cells = <1>;
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#size-cells = <0>;
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rv3029c2@56 {
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compatible = "rv3029c2";
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reg = <0x56>;
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};
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};
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41
Documentation/devicetree/bindings/mtd/atmel-nand.txt
Normal file
41
Documentation/devicetree/bindings/mtd/atmel-nand.txt
Normal file
@@ -0,0 +1,41 @@
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Atmel NAND flash
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Required properties:
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- compatible : "atmel,at91rm9200-nand".
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- reg : should specify localbus address and size used for the chip,
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and if availlable the ECC.
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- atmel,nand-addr-offset : offset for the address latch.
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- atmel,nand-cmd-offset : offset for the command latch.
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- #address-cells, #size-cells : Must be present if the device has sub-nodes
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representing partitions.
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- gpios : specifies the gpio pins to control the NAND device. detect is an
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optional gpio and may be set to 0 if not present.
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Optional properties:
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- nand-ecc-mode : String, operation mode of the NAND ecc mode, soft by default.
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Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
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"soft_bch".
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- nand-bus-width : 8 or 16 bus width if not present 8
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- nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
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Examples:
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nand0: nand@40000000,0 {
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compatible = "atmel,at91rm9200-nand";
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0x40000000 0x10000000
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0xffffe800 0x200
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>;
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atmel,nand-addr-offset = <21>;
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atmel,nand-cmd-offset = <22>;
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nand-on-flash-bbt;
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nand-ecc-mode = "soft";
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gpios = <&pioC 13 0
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&pioC 14 0
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0
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>;
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partition@0 {
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...
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};
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};
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7
Documentation/devicetree/bindings/mtd/nand.txt
Normal file
7
Documentation/devicetree/bindings/mtd/nand.txt
Normal file
@@ -0,0 +1,7 @@
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* MTD generic binding
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- nand-ecc-mode : String, operation mode of the NAND ecc mode.
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Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
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"soft_bch".
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- nand-bus-width : 8 or 16 bus width if not present 8
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- nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
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49
Documentation/devicetree/bindings/usb/atmel-usb.txt
Normal file
49
Documentation/devicetree/bindings/usb/atmel-usb.txt
Normal file
@@ -0,0 +1,49 @@
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Atmel SOC USB controllers
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OHCI
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Required properties:
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- compatible: Should be "atmel,at91rm9200-ohci" for USB controllers
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used in host mode.
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- num-ports: Number of ports.
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- atmel,vbus-gpio: If present, specifies a gpio that needs to be
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activated for the bus to be powered.
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- atmel,oc-gpio: If present, specifies a gpio that needs to be
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activated for the overcurrent detection.
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usb0: ohci@00500000 {
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compatible = "atmel,at91rm9200-ohci", "usb-ohci";
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reg = <0x00500000 0x100000>;
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interrupts = <20 4>;
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num-ports = <2>;
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};
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EHCI
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Required properties:
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- compatible: Should be "atmel,at91sam9g45-ehci" for USB controllers
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used in host mode.
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usb1: ehci@00800000 {
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compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
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reg = <0x00800000 0x100000>;
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interrupts = <22 4>;
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};
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AT91 USB device controller
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Required properties:
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- compatible: Should be "atmel,at91rm9200-udc"
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- reg: Address and length of the register set for the device
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- interrupts: Should contain macb interrupt
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Optional properties:
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- atmel,vbus-gpio: If present, specifies a gpio that needs to be
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activated for the bus to be powered.
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usb1: gadget@fffa4000 {
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compatible = "atmel,at91rm9200-udc";
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reg = <0xfffa4000 0x4000>;
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interrupts = <10 4>;
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atmel,vbus-gpio = <&pioC 5 0>;
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};
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@@ -11,3 +11,16 @@ Required properties :
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- phy_type : Should be one of "ulpi" or "utmi".
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- nvidia,vbus-gpio : If present, specifies a gpio that needs to be
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activated for the bus to be powered.
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Optional properties:
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- dr_mode : dual role mode. Indicates the working mode for
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nvidia,tegra20-ehci compatible controllers. Can be "host", "peripheral",
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or "otg". Default to "host" if not defined for backward compatibility.
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host means this is a host controller
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peripheral means it is device controller
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otg means it can operate as either ("on the go")
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- nvidia,has-legacy-mode : boolean indicates whether this controller can
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operate in legacy mode (as APX 2500 / 2600). In legacy mode some
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registers are accessed through the APB_MISC base address instead of
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the USB controller. Since this is a legacy issue it probably does not
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warrant a compatible string of its own.
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