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USB: ohci-pxa27x: Allow NOCP and OCPM to be cleared

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Some ohci-pxa27x platforms may require OCPM and NOCP in UHCRHDA to be
clear, but the existing code was only allowing setting.  This patch
ensures that these bits are clear if the respective flags are not set.
This is particularly important for the PXA3xx family where the
documentation says OCPM must be cleared, but it is set after reset.

Signed-off-by: Aric Blumer <aric@sdgsystems.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Aric Blumer 2009-07-30 13:26:58 -04:00 committed by Greg Kroah-Hartman
parent 6e23ec4ff2
commit 7b4361f084
1 changed files with 4 additions and 0 deletions
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4
drivers/usb/host/ohci-pxa27x.c
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@ -177,9 +177,13 @@ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci,
if (inf->flags & NO_OC_PROTECTION)
uhcrhda |= UHCRHDA_NOCP;
else
uhcrhda &= ~UHCRHDA_NOCP;
if (inf->flags & OC_MODE_PERPORT)
uhcrhda |= UHCRHDA_OCPM;
else
uhcrhda &= ~UHCRHDA_OCPM;
if (inf->power_on_delay) {
uhcrhda &= ~UHCRHDA_POTPGT(0xff);