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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 21:17:09 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 21:17:09 +0100
commit9bbd4b9f38f56b4ee2c8ff268a1104ff38333e90 (patch)
tree7e889c87c06165e553fdc9056b9fa4d91b91a5ee /Documentation/devicetree/bindings/usb/samsung-usbphy.txt
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dto... (diff)
parentMAINTAINERS: update DT binding doc locations (diff)
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Merge tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring: "A fairly large (by DT standards) pull request this time with the majority being some overdue moving DT binding docs around to consolidate similar bindings. - DT binding doc consolidation moving similar bindings to common locations. The majority of these are display related which were scattered in video/, fb/, drm/, gpu/, and panel/ directories. - Add new config option, CONFIG_OF_ALL_DTBS, to enable building all dtbs in the tree for most arches with dts files (except powerpc for now). - OF_IRQ=n fixes for user enabled CONFIG_OF. - of_node_put ref counting fixes from Julia Lawall. - Common DT binding for wakeup-source and deprecation of all similar bindings. - DT binding for PXA LCD controller. - Allow ignoring failed PCI resource translations in order to ignore 64-bit addresses on non-LPAE 32-bit kernels. - Support setting the NUMA node from DT instead of only from parent device. - Couple of earlycon DT parsing fixes for address and options" * tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits) MAINTAINERS: update DT binding doc locations devicetree: add Sigma Designs vendor prefix of: simplify arch_find_n_match_cpu_physical_id() function Documentation: arm: Fixed typo in socfpga fpga mgr example Documentation: devicetree: fix reference to legacy wakeup properties Documentation: devicetree: standardize/consolidate on "wakeup-source" property drivers: of: removing assignment of 0 to static variable xtensa: enable building of all dtbs mips: enable building of all dtbs metag: enable building of all dtbs metag: use common make variables for dtb builds h8300: enable building of all dtbs arm64: enable building of all dtbs arm: enable building of all dtbs arc: enable building of all dtbs arc: use common make variables for dtb builds of: add config option to enable building of all dtbs of/fdt: fix error checking for earlycon address of/overlay: add missing of_node_put of/platform: add missing of_node_put ...
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-SAMSUNG USB-PHY controllers
-
-** Samsung's usb 2.0 phy transceiver
-
-The Samsung's usb 2.0 phy transceiver is used for controlling
-usb 2.0 phy for s3c-hsotg as well as ehci-s5p and ohci-exynos
-usb controllers across Samsung SOCs.
-TODO: Adding the PHY binding with controller(s) according to the under
-development generic PHY driver.
-
-Required properties:
-
-Exynos4210:
-- compatible : should be "samsung,exynos4210-usb2phy"
-- reg : base physical address of the phy registers and length of memory mapped
- region.
-- clocks: Clock IDs array as required by the controller.
-- clock-names: names of clock correseponding IDs clock property as requested
- by the controller driver.
-
-Exynos5250:
-- compatible : should be "samsung,exynos5250-usb2phy"
-- reg : base physical address of the phy registers and length of memory mapped
- region.
-
-Optional properties:
-- #address-cells: should be '1' when usbphy node has a child node with 'reg'
- property.
-- #size-cells: should be '1' when usbphy node has a child node with 'reg'
- property.
-- ranges: allows valid translation between child's address space and parent's
- address space.
-
-- The child node 'usbphy-sys' to the node 'usbphy' is for the system controller
- interface for usb-phy. It should provide the following information required by
- usb-phy controller to control phy.
- - reg : base physical address of PHY_CONTROL registers.
- The size of this register is the total sum of size of all PHY_CONTROL
- registers that the SoC has. For example, the size will be
- '0x4' in case we have only one PHY_CONTROL register (e.g.
- OTHERS register in S3C64XX or USB_PHY_CONTROL register in S5PV210)
- and, '0x8' in case we have two PHY_CONTROL registers (e.g.
- USBDEVICE_PHY_CONTROL and USBHOST_PHY_CONTROL registers in exynos4x).
- and so on.
-
-Example:
- - Exynos4210
-
- usbphy@125B0000 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "samsung,exynos4210-usb2phy";
- reg = <0x125B0000 0x100>;
- ranges;
-
- clocks = <&clock 2>, <&clock 305>;
- clock-names = "xusbxti", "otg";
-
- usbphy-sys {
- /* USB device and host PHY_CONTROL registers */
- reg = <0x10020704 0x8>;
- };
- };
-
-
-** Samsung's usb 3.0 phy transceiver
-
-Starting exynso5250, Samsung's SoC have usb 3.0 phy transceiver
-which is used for controlling usb 3.0 phy for dwc3-exynos usb 3.0
-controllers across Samsung SOCs.
-
-Required properties:
-
-Exynos5250:
-- compatible : should be "samsung,exynos5250-usb3phy"
-- reg : base physical address of the phy registers and length of memory mapped
- region.
-- clocks: Clock IDs array as required by the controller.
-- clock-names: names of clocks correseponding to IDs in the clock property
- as requested by the controller driver.
-
-Optional properties:
-- #address-cells: should be '1' when usbphy node has a child node with 'reg'
- property.
-- #size-cells: should be '1' when usbphy node has a child node with 'reg'
- property.
-- ranges: allows valid translation between child's address space and parent's
- address space.
-
-- The child node 'usbphy-sys' to the node 'usbphy' is for the system controller
- interface for usb-phy. It should provide the following information required by
- usb-phy controller to control phy.
- - reg : base physical address of PHY_CONTROL registers.
- The size of this register is the total sum of size of all PHY_CONTROL
- registers that the SoC has. For example, the size will be
- '0x4' in case we have only one PHY_CONTROL register (e.g.
- OTHERS register in S3C64XX or USB_PHY_CONTROL register in S5PV210)
- and, '0x8' in case we have two PHY_CONTROL registers (e.g.
- USBDEVICE_PHY_CONTROL and USBHOST_PHY_CONTROL registers in exynos4x).
- and so on.
-
-Example:
- usbphy@12100000 {
- compatible = "samsung,exynos5250-usb3phy";
- reg = <0x12100000 0x100>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- clocks = <&clock 1>, <&clock 286>;
- clock-names = "ext_xtal", "usbdrd30";
-
- usbphy-sys {
- /* USB device and host PHY_CONTROL registers */
- reg = <0x10040704 0x8>;
- };
- };