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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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4
include/linux/usb/ehci_def.h
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@@ -127,7 +127,9 @@ struct ehci_regs {
#define PORT_WKDISC_E (1<<21) /* wake on disconnect (enable) */
#define PORT_WKCONN_E (1<<20) /* wake on connect (enable) */
/* 19:16 for port testing */
#define PORT_TEST_PKT (0x4<<16) /* Port Test Control - packet test */
#define PORT_TEST(x) (((x)&0xf)<<16) /* Port Test Control */
#define PORT_TEST_PKT PORT_TEST(0x4) /* Port Test Control - packet test */
#define PORT_TEST_FORCE PORT_TEST(0x5) /* Port Test Control - force enable */
#define PORT_LED_OFF (0<<14)
#define PORT_LED_AMBER (1<<14)
#define PORT_LED_GREEN (2<<14)