diff options
| author | Kuo-Jung Su <dantesu@faraday-tech.com> | 2013-05-15 15:29:23 +0800 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-06-12 22:22:51 +0200 |
| commit | e82a316d7f9425943d86c1ed61c5cf57b0d5b188 (patch) | |
| tree | f32a19b18dde2c92c54c86018f88689057e9f6fb /drivers/usb/host/ehci-hcd.c | |
| parent | aa1550588cc60549bf3a97dc6dccb7de4c022aa6 (diff) | |
| download | u-boot-imx-e82a316d7f9425943d86c1ed61c5cf57b0d5b188.zip u-boot-imx-e82a316d7f9425943d86c1ed61c5cf57b0d5b188.tar.gz u-boot-imx-e82a316d7f9425943d86c1ed61c5cf57b0d5b188.tar.bz2 | |
usb: ehci: add Faraday USB 2.0 EHCI support
This patch adds support to both Faraday FUSBH200 and FOTG210,
the differences between Faraday EHCI and standard EHCI are
listed bellow:
1. The PORTSC starts at 0x30 instead of 0x44.
2. The CONFIGFLAG(0x40) is not only un-implemented, and
also has its address space removed.
3. Faraday EHCI is a TDI design, but it doesn't
compatible with the general TDI implementation
found at both U-Boot and Linux.
4. The ISOC descriptors differ from standard EHCI in
several ways. But since U-boot doesn't support ISOC,
we don't have to worry about that.
Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com>
CC: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 7e8e85c..28b6007 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -589,10 +589,12 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, dev->act_len = length - QT_TOKEN_GET_TOTALBYTES(token); } else { dev->act_len = 0; +#ifndef CONFIG_USB_EHCI_FARADAY debug("dev=%u, usbsts=%#x, p[1]=%#x, p[2]=%#x\n", dev->devnum, ehci_readl(&ctrl->hcor->or_usbsts), ehci_readl(&ctrl->hcor->or_portsc[0]), ehci_readl(&ctrl->hcor->or_portsc[1])); +#endif } free(qtd); @@ -980,10 +982,13 @@ int usb_lowlevel_init(int index, void **controller) cmd |= CMD_RUN; ehci_writel(&ehcic[index].hcor->or_usbcmd, cmd); +#ifndef CONFIG_USB_EHCI_FARADAY /* take control over the ports */ cmd = ehci_readl(&ehcic[index].hcor->or_configflag); cmd |= FLAG_CF; ehci_writel(&ehcic[index].hcor->or_configflag, cmd); +#endif + /* unblock posted write */ cmd = ehci_readl(&ehcic[index].hcor->or_usbcmd); mdelay(5); |