diff options
| author | Peng Fan <Peng.Fan@freescale.com> | 2014-11-10 08:50:39 +0800 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-11-14 20:56:54 +0100 |
| commit | 229dbba9b1a24d8f371f18fa8ff13a4cca864f06 (patch) | |
| tree | 756144412d42d215156e3913a7b5d39704b7e40e /drivers | |
| parent | 0d485b9095328cdc81b2ee94ff59b988c69b9127 (diff) | |
| download | u-boot-imx-229dbba9b1a24d8f371f18fa8ff13a4cca864f06.zip u-boot-imx-229dbba9b1a24d8f371f18fa8ff13a4cca864f06.tar.gz u-boot-imx-229dbba9b1a24d8f371f18fa8ff13a4cca864f06.tar.bz2 | |
usb:ehci-mx6 add phy mode query function
usb_phy_enable should return status bit, but not phy mode bit, thus
add a new function usb_phy_mode to query the PHY for it's mode and
make usb_phy_enable just return 0 but not 'phy_ctrl & USBPHY_CTRL_OTG_ID'.
Include a new board weak function board_usb_phy_mode. If board code
does not reimplement this function, it just call usb_phy_mode and return
usb_phy_mode's return value. The reason to include such a weak function
is: " SOC OTG core <--connect--> board HOST port, but no pin id for
the board host port, so board can not use usb_phy_mode to return the
phy mode, but define it's own rule."
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye Li <B37916@freescale.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-mx6.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index 9ec5a0a..951dd3b 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -160,7 +160,7 @@ static int usb_phy_enable(int index, struct usb_ehci *ehci) val |= (USBPHY_CTRL_ENUTMILEVEL2 | USBPHY_CTRL_ENUTMILEVEL3); __raw_writel(val, phy_ctrl); - return val & USBPHY_CTRL_OTG_ID; + return 0; } /* Base address for this IP block is 0x02184800 */ @@ -193,6 +193,28 @@ static void usb_oc_config(int index) __raw_writel(val, ctrl); } +int usb_phy_mode(int port) +{ + void __iomem *phy_reg; + void __iomem *phy_ctrl; + u32 val; + + phy_reg = (void __iomem *)phy_bases[port]; + phy_ctrl = (void __iomem *)(phy_reg + USBPHY_CTRL); + + val = __raw_readl(phy_ctrl); + + if (val & USBPHY_CTRL_OTG_ID) + return USB_INIT_DEVICE; + else + return USB_INIT_HOST; +} + +int __weak board_usb_phy_mode(int port) +{ + return usb_phy_mode(port); +} + int __weak board_ehci_hcd_init(int port) { return 0; @@ -221,7 +243,8 @@ int ehci_hcd_init(int index, enum usb_init_type init, usb_power_config(index); usb_oc_config(index); usb_internal_phy_clock_gate(index, 1); - type = usb_phy_enable(index, ehci) ? USB_INIT_DEVICE : USB_INIT_HOST; + usb_phy_enable(index, ehci); + type = board_usb_phy_mode(index); *hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength); *hcor = (struct ehci_hcor *)((uint32_t)*hccr + |