diff options
author | Olof Johansson <olof@lixom.net> | 2013-06-14 21:09:41 -0400 |
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committer | Olof Johansson <olof@lixom.net> | 2013-06-14 21:09:41 -0400 |
commit | 36d29fb57ccbf3cea2e46fea2ef5f0ffc22308e4 (patch) | |
tree | 60038ef374cbfd97b1f75c14c6b44f5dde9c2d8d /Documentation/devicetree/bindings/usb | |
parent | 3b2e6296abeefb6f602e1cf1bd67e4e3a9b9ee7e (diff) | |
parent | 23037bbd9661b53236ebe934c77952e8f73f1c7a (diff) |
Merge tag 'tegra-for-3.11-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/dt
From Stephen Warren:
ARM: tegra: device tree updates
This branch contains all device tree updates for Tegra boards.
The changes are:
* Converted all DT files to use the C pre-processor, to support the use
of named constants. This included use of defines for GPIO, IRQ, and
clock constants.
* Enabling new features such as:
- SPI on Dalmore.
- Audio on Dalmore and Beaver.
- gpio-leds on Beaver.
- Power-supply/batter linkage on Dalmore.
* A minor fix to the RAM size node on Beaver.
It is based on previous pull request tegra-for-3.11-deps-for-usb
followed by a merge of tegra-for-3.11-deps-for-clk.
* tag 'tegra-for-3.11-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (21 commits)
ARM: tegra: enable audio on Beaver
ARM: tegra: enable audio on Dalmore
ARM: tegra: add power-supplies link between battery and charger
ARM: tegra: add audio-related nodes to Tegra114 DT
ARM: tegra114: convert device tree files to use CLK defines
ARM: tegra30: convert device tree files to use CLK defines
ARM: tegra20: convert device tree files to use CLK defines
ARM: tegra: Add charger subnode to tps65090 node
ARM: tegra: convert device tree files to use IRQ defines
ARM: tegra: convert device tree files to use GPIO defines
ARM: tegra: create a DT header defining GPIO IDs
ARM: tegra: use #include for all device trees
ARM: tegra: Add gpio-leds to Tegra30 Beaver
ARM: tegra: fix memory size on Beaver
ARM: tegra: enable spi4 on Dalmore
ARM: tegra114: create a DT header defining CLK IDs
ARM: tegra30: create a DT header defining CLK IDs
ARM: tegra20: create a DT header defining CLK IDs
ARM: tegra: update device trees for USB binding rework
ARM: tegra: modify ULPI reset GPIO properties
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation/devicetree/bindings/usb')
-rw-r--r-- | Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt | 27 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt | 41 |
2 files changed, 43 insertions, 25 deletions
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt index 34c952883276..df0933043a5b 100644 --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt | |||
@@ -6,27 +6,10 @@ Practice : Universal Serial Bus" with the following modifications | |||
6 | and additions : | 6 | and additions : |
7 | 7 | ||
8 | Required properties : | 8 | Required properties : |
9 | - compatible : Should be "nvidia,tegra20-ehci" for USB controllers | 9 | - compatible : Should be "nvidia,tegra20-ehci". |
10 | used in host mode. | 10 | - nvidia,phy : phandle of the PHY that the controller is connected to. |
11 | - phy_type : Should be one of "ulpi" or "utmi". | 11 | - clocks : Contains a single entry which defines the USB controller's clock. |
12 | - nvidia,vbus-gpio : If present, specifies a gpio that needs to be | ||
13 | activated for the bus to be powered. | ||
14 | - nvidia,phy : phandle of the PHY instance, the controller is connected to. | ||
15 | |||
16 | Required properties for phy_type == ulpi: | ||
17 | - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. | ||
18 | 12 | ||
19 | Optional properties: | 13 | Optional properties: |
20 | - dr_mode : dual role mode. Indicates the working mode for | 14 | - nvidia,needs-double-reset : boolean is to be set for some of the Tegra20 |
21 | nvidia,tegra20-ehci compatible controllers. Can be "host", "peripheral", | 15 | USB ports, which need reset twice due to hardware issues. |
22 | or "otg". Default to "host" if not defined for backward compatibility. | ||
23 | host means this is a host controller | ||
24 | peripheral means it is device controller | ||
25 | otg means it can operate as either ("on the go") | ||
26 | - nvidia,has-legacy-mode : boolean indicates whether this controller can | ||
27 | operate in legacy mode (as APX 2500 / 2600). In legacy mode some | ||
28 | registers are accessed through the APB_MISC base address instead of | ||
29 | the USB controller. Since this is a legacy issue it probably does not | ||
30 | warrant a compatible string of its own. | ||
31 | - nvidia,needs-double-reset : boolean is to be set for some of the Tegra2 | ||
32 | USB ports, which need reset twice due to hardware issues. | ||
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt index 6bdaba2f0aa1..c4c9e9e664aa 100644 --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt | |||
@@ -4,14 +4,49 @@ The device node for Tegra SOC USB PHY: | |||
4 | 4 | ||
5 | Required properties : | 5 | Required properties : |
6 | - compatible : Should be "nvidia,tegra20-usb-phy". | 6 | - compatible : Should be "nvidia,tegra20-usb-phy". |
7 | - reg : Address and length of the register set for the USB PHY interface. | 7 | - reg : Defines the following set of registers, in the order listed: |
8 | - phy_type : Should be one of "ulpi" or "utmi". | 8 | - The PHY's own register set. |
9 | Always present. | ||
10 | - The register set of the PHY containing the UTMI pad control registers. | ||
11 | Present if-and-only-if phy_type == utmi. | ||
12 | - phy_type : Should be one of "utmi", "ulpi" or "hsic". | ||
13 | - clocks : Defines the clocks listed in the clock-names property. | ||
14 | - clock-names : The following clock names must be present: | ||
15 | - reg: The clock needed to access the PHY's own registers. This is the | ||
16 | associated EHCI controller's clock. Always present. | ||
17 | - pll_u: PLL_U. Always present. | ||
18 | - timer: The timeout clock (clk_m). Present if phy_type == utmi. | ||
19 | - utmi-pads: The clock needed to access the UTMI pad control registers. | ||
20 | Present if phy_type == utmi. | ||
21 | - ulpi-link: The clock Tegra provides to the ULPI PHY (cdev2). | ||
22 | Present if phy_type == ulpi, and ULPI link mode is in use. | ||
9 | 23 | ||
10 | Required properties for phy_type == ulpi: | 24 | Required properties for phy_type == ulpi: |
11 | - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. | 25 | - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. |
12 | 26 | ||
27 | Required PHY timing params for utmi phy: | ||
28 | - nvidia,hssync-start-delay : Number of 480 Mhz clock cycles to wait before | ||
29 | start of sync launches RxActive | ||
30 | - nvidia,elastic-limit : Variable FIFO Depth of elastic input store | ||
31 | - nvidia,idle-wait-delay : Number of 480 Mhz clock cycles of idle to wait | ||
32 | before declare IDLE. | ||
33 | - nvidia,term-range-adj : Range adjusment on terminations | ||
34 | - nvidia,xcvr-setup : HS driver output control | ||
35 | - nvidia,xcvr-lsfslew : LS falling slew rate control. | ||
36 | - nvidia,xcvr-lsrslew : LS rising slew rate control. | ||
37 | |||
13 | Optional properties: | 38 | Optional properties: |
14 | - nvidia,has-legacy-mode : boolean indicates whether this controller can | 39 | - nvidia,has-legacy-mode : boolean indicates whether this controller can |
15 | operate in legacy mode (as APX 2500 / 2600). In legacy mode some | 40 | operate in legacy mode (as APX 2500 / 2600). In legacy mode some |
16 | registers are accessed through the APB_MISC base address instead of | 41 | registers are accessed through the APB_MISC base address instead of |
17 | the USB controller. \ No newline at end of file | 42 | the USB controller. |
43 | - nvidia,is-wired : boolean. Indicates whether we can do certain kind of power | ||
44 | optimizations for the devices that are always connected. e.g. modem. | ||
45 | - dr_mode : dual role mode. Indicates the working mode for the PHY. Can be | ||
46 | "host", "peripheral", or "otg". Defaults to "host" if not defined. | ||
47 | host means this is a host controller | ||
48 | peripheral means it is device controller | ||
49 | otg means it can operate as either ("on the go") | ||
50 | |||
51 | Required properties for dr_mode == otg: | ||
52 | - vbus-supply: regulator for VBUS | ||