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Chipidea: Set connect-at-fullspeed bit when entering host mode if CI_HDRC_FORCE_FULLSPEED is set in the platform data

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PORTSC_PFSC is not set on entering host mode which means the USB OTG
controller will attempt to enumerate USB devices at high speed even when the
CI_HDRC_FORCE_FULLSPEED flag is set in the platform data.

This patch ensures it is set right before host mode operations begin if needed.

Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daniel Tang 2015-02-11 12:44:58 +08:00 committed by Greg Kroah-Hartman
parent 89200448a0
commit 905276c431
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/chipidea/host.c
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@ -133,6 +133,9 @@ static int host_start(struct ci_hdrc *ci)
if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED)
hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
return ret;
put_hcd: