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USB: ohci: make distrust_firmware a quirk

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Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dmitry Baryshkov 2008-07-06 23:35:01 +04:00 committed by Greg Kroah-Hartman
parent f0fa74634c
commit 1133cd8adf
3 changed files with 7 additions and 2 deletions
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6
drivers/usb/host/ohci-hcd.c
View File

@ -483,6 +483,9 @@ static int ohci_init (struct ohci_hcd *ohci)
int ret;
struct usb_hcd *hcd = ohci_to_hcd(ohci);
if (distrust_firmware)
ohci->flags |= OHCI_QUIRK_HUB_POWER;
disable (ohci);
ohci->regs = hcd->regs;
@ -689,7 +692,8 @@ retry:
temp |= RH_A_NOCP;
temp &= ~(RH_A_POTPGT | RH_A_NPS);
ohci_writel (ohci, temp, &ohci->regs->roothub.a);
} else if ((ohci->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
} else if ((ohci->flags & OHCI_QUIRK_AMD756) ||
(ohci->flags & OHCI_QUIRK_HUB_POWER)) {
/* hub power always on; required for AMD-756 and some
* Mac platforms. ganged overcurrent reporting, if any.
*/

2
drivers/usb/host/ohci-omap.c
View File

@ -260,7 +260,7 @@ static int ohci_omap_init(struct usb_hcd *hcd)
omap_cfg_reg(W4_USB_HIGHZ);
}
ohci_writel(ohci, rh, &ohci->regs->roothub.a);
distrust_firmware = 0;
ohci->flags &= ~OHCI_QUIRK_HUB_POWER;
} else if (machine_is_nokia770()) {
/* We require a self-powered hub, which should have
* plenty of power. */

1
drivers/usb/host/ohci.h
View File

@ -399,6 +399,7 @@ struct ohci_hcd {
#define OHCI_QUIRK_ZFMICRO 0x20 /* Compaq ZFMicro chipset*/
#define OHCI_QUIRK_NEC 0x40 /* lost interrupts */
#define OHCI_QUIRK_FRAME_NO 0x80 /* no big endian frame_no shift */
#define OHCI_QUIRK_HUB_POWER 0x100 /* distrust firmware power/oc setup */
// there are also chip quirks/bugs in init logic
struct work_struct nec_work; /* Worker for NEC quirk */