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author | Adrian Alonso <aalonso@freescale.com> | 2015-08-06 15:43:16 -0500 |
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committer | Marek Vasut <marex@denx.de> | 2015-08-19 22:30:20 +0200 |
commit | 74f0610eb4852f97e57cdec5c86828dd8076be94 (patch) | |
tree | 888f3c399b719432b1b936b7c874d5102ea64330 /drivers/usb/host/ehci-mx6.c | |
parent | e38ff30a556fa02fd406cf73387e227b459cc49a (diff) | |
download | u-boot-imx-74f0610eb4852f97e57cdec5c86828dd8076be94.zip u-boot-imx-74f0610eb4852f97e57cdec5c86828dd8076be94.tar.gz u-boot-imx-74f0610eb4852f97e57cdec5c86828dd8076be94.tar.bz2 |
imx: usb: ehci-mx6: document board specific functions
Document target board specific functions
board_ehci_hcd_init - override usb phy mode
board_ehci_hcd_init - set usb vbus voltage
board_ehci_power - enables/disables usb vbus voltage
Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Diffstat (limited to 'drivers/usb/host/ehci-mx6.c')
-rw-r--r-- | drivers/usb/host/ehci-mx6.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index 0f94c8b..1f5b056 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -195,16 +195,47 @@ int usb_phy_mode(int port) return USB_INIT_HOST; } +/** + * board_ehci_hcd_init - override usb phy mode + * @port: usb host/otg port + * + * Target board specific, override usb_phy_mode. + * When usb-otg is used as usb host port, iomux pad usb_otg_id can be + * left disconnected in this case usb_phy_mode will not be able to identify + * the phy mode that usb port is used. + * Machine file overrides board_usb_phy_mode. + * + * Return: USB_INIT_DEVICE or USB_INIT_HOST + */ int __weak board_usb_phy_mode(int port) { return usb_phy_mode(port); } +/** + * board_ehci_hcd_init - set usb vbus voltage + * @port: usb otg port + * + * Target board specific, setup iomux pad to setup supply vbus voltage + * for usb otg port. Machine board file overrides board_ehci_hcd_init + * + * Return: 0 Success + */ int __weak board_ehci_hcd_init(int port) { return 0; } +/** + * board_ehci_power - enables/disables usb vbus voltage + * @port: usb otg port + * @on: on/off vbus voltage + * + * Enables/disables supply vbus voltage for usb otg port. + * Machine board file overrides board_ehci_power + * + * Return: 0 Success + */ int __weak board_ehci_power(int port, int on) { return 0; |