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| author | Dan Murphy <dmurphy@ti.com> | 2013-08-01 14:06:01 -0500 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-08-26 21:56:34 +0200 |
| commit | 3615a996ab91b5cdf8d89359150aff3d754db8d8 (patch) | |
| tree | 052179c899cb8df574ad5bcad6c22e807f0c6d79 /common/usb_hub.c | |
| parent | 04025b42dc32b0f6437c24743b1c88b8ec43995a (diff) | |
| download | u-boot-imx-3615a996ab91b5cdf8d89359150aff3d754db8d8.zip u-boot-imx-3615a996ab91b5cdf8d89359150aff3d754db8d8.tar.gz u-boot-imx-3615a996ab91b5cdf8d89359150aff3d754db8d8.tar.bz2 | |
USB: usb-hub: Add a weak function for resetting devices
Add a __weak function that can be overridden to reset devices
attached to an ehci devices after the FEAT_POWER has been submitted
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Diffstat (limited to 'common/usb_hub.c')
| -rw-r--r-- | common/usb_hub.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/common/usb_hub.c b/common/usb_hub.c index a11b401..fd2b4ed 100644 --- a/common/usb_hub.c +++ b/common/usb_hub.c @@ -44,6 +44,10 @@ static struct usb_hub_device hub_dev[USB_MAX_HUB]; static int usb_hub_index; +__weak void usb_hub_reset_devices(int port) +{ + return; +} static int usb_get_hub_descriptor(struct usb_device *dev, void *data, int size) { @@ -426,6 +430,14 @@ static int usb_hub_configure(struct usb_device *dev) "" : "no "); usb_hub_power_on(hub); + /* + * Reset any devices that may be in a bad state when applying + * the power. This is a __weak function. Resetting of the devices + * should occur in the board file of the device. + */ + for (i = 0; i < dev->maxchild; i++) + usb_hub_reset_devices(i + 1); + for (i = 0; i < dev->maxchild; i++) { ALLOC_CACHE_ALIGN_BUFFER(struct usb_port_status, portsts, 1); unsigned short portstatus, portchange; |