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usb: ehci: add weak-aliased function for PORTSC

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There is at least one non-EHCI compliant controller (i.e. Faraday EHCI)
not only leave RESERVED and CONFIGFLAG registers un-implemented
but also has their address spaces removed.

As an result, the PORTSC register of Faraday EHCI always
starts from 0x30 instead of 0x44 in standard EHCI.

So that we'll need a weak-aliased function for abstraction.

Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com>
CC: Marek Vasut <marex@denx.de>
This commit is contained in:
Kuo-Jung Su 2013-05-15 15:29:21 +08:00 committed by Marek Vasut
parent 9c6a9d7c8b
commit 1dde1423ad
1 changed files with 13 additions and 4 deletions
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17
drivers/usb/host/ehci-hcd.c
View File

@ -603,6 +603,17 @@ fail:
return -1;
}
__weak uint32_t *ehci_get_portsc_register(struct ehci_hcor *hcor, int port)
{
if (port < 0 || port >= CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) {
/* Printing the message would cause a scan failure! */
debug("The request port(%u) is not configured\n", port);
return NULL;
}
return (uint32_t *)&hcor->or_portsc[port];
}
int
ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
int length, struct devrequest *req)
@ -629,11 +640,9 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
case USB_REQ_GET_STATUS | ((USB_RT_PORT | USB_DIR_IN) << 8):
case USB_REQ_SET_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
case USB_REQ_CLEAR_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
if (!port || port > CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) {
printf("The request port(%d) is not configured\n", port - 1);
status_reg = ehci_get_portsc_register(ctrl->hcor, port - 1);
if (!status_reg)
return -1;
}
status_reg = (uint32_t *)&ctrl->hcor->or_portsc[port - 1];
break;
default:
status_reg = NULL;