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.ta...@gmail.com>
---
drivers/usb/chipidea/host.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index c1694cf..f106d25 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -132,6 +132,9 @@ 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:
--
2.1.3
--
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