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usb: host: Add EHCI driver for NVIDIA Tegra SoCs

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The Tegra 2 SoC has 3 EHCI compatible USB controllers. This patch adds
the necessary glue to allow the ehci-hcd driver to work on Tegra 2
SoCs.

The platform data is used to configure board-specific phy settings and
to configure the operating mode, as one of the ports may be used as a otg
port. For additional power saving, the driver supports powering down the
phy on bus suspend when it is used, for example, to connect an internal
device that use an out-of-band remote wakeup mechanism (e.g. a gpio).

Signed-off-by: Benoit Goby <benoit@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Benoit Goby
2011-03-09 16:28:56 -08:00
committed by Greg Kroah-Hartman
parent 91525d084e
commit 79ad3b5add
5 changed files with 672 additions and 1 deletions
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drivers/usb/host/Kconfig
+8
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@@ -165,6 +165,14 @@ config USB_EHCI_MSM
This driver is not supported on boards like trout which
has an external PHY.
config USB_EHCI_TEGRA
boolean "NVIDIA Tegra HCD support"
depends on USB_EHCI_HCD && ARCH_TEGRA
select USB_EHCI_ROOT_HUB_TT
help
This driver enables support for the internal USB Host Controllers
found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
config USB_EHCI_HCD_PPC_OF
bool "EHCI support for PPC USB controller on OF platform bus"
depends on USB_EHCI_HCD && PPC_OF