diff options
| author | Vinayak Pane <vpane@nvidia.com> | 2011-12-08 21:38:51 -0800 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2012-01-19 16:16:18 -0800 |
| commit | 24f020cec2e6c3328620ad0c43e171c59f648370 (patch) | |
| tree | cadc48b7ba445902ae2aacb1271921013d34632e /drivers/usb | |
| parent | ac6e437face1760362fa97ee8a1b486dc63d6914 (diff) | |
arm: tegra: usb: Use T30 specific hsic bus reset
HSIC bus reset apparently needs a WAR. The ehci generic
port reset is not enough for modem to connect in stress
tests.
Instead use pull-down pull-up on Strobe signal of
USB HSIC bus. This is AP30 specific workaround.
Bug 898008
Bug 912850
Bug 922444
Change-Id: I4f542d0398b05c388f6fa7e08477b65877dc705c
Reviewed-on: http://git-master/r/73266
Signed-off-by: Vinayak Pane <vpane@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/75879
Reviewed-by: Automatic_Commit_Validation_User
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 1ae272c44714..308fb315e4b0 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -357,13 +357,8 @@ static int tegra_ehci_hub_control( } /* Handle port reset here */ -#ifdef CONFIG_ARCH_TEGRA_2x_SOC if ((hsic) && (typeReq == SetPortFeature) && ((wValue == USB_PORT_FEAT_RESET) || (wValue == USB_PORT_FEAT_POWER))) { -#else - if ((hsic) && (typeReq == SetPortFeature) && - (wValue == USB_PORT_FEAT_POWER)) { -#endif selector = wIndex >> 8; wIndex &= 0xff; if (!wIndex || wIndex > ports) { @@ -378,7 +373,6 @@ static int tegra_ehci_hub_control( temp &= ~PORT_RWC_BITS; switch (wValue) { -#ifdef CONFIG_ARCH_TEGRA_2x_SOC case USB_PORT_FEAT_RESET: { if (temp & PORT_RESUME) { @@ -409,7 +403,6 @@ static int tegra_ehci_hub_control( break; } -#endif case USB_PORT_FEAT_POWER: { if (HCS_PPC(ehci->hcs_params)) |