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authorStephen Warren <swarren@wwwdotorg.org>2015-03-28 06:55:38 +0300
committerMarek Vasut <marex@denx.de>2015-04-14 06:47:59 +0300
commit4748cce57345a23dbbc990a28ca9d97952432c4f (patch)
treec889d66d476e5e9e78bd03405fb10f85175e3474 /drivers
parent5c0beb5c58c86d2a6d12dee6330dc85554de5c60 (diff)
downloadu-boot-4748cce57345a23dbbc990a28ca9d97952432c4f.tar.xz
usb: dwc2: detect device speed correctly
This doesn't make my LS keyboard work any better, but it does at least report the correct speed in "usb tree". Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/dwc2.c6
-rw-r--r--drivers/usb/host/dwc2.h3
2 files changed, 8 insertions, 1 deletions
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index 8f7c269dd1..b506ff23ed 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -463,7 +463,11 @@ static int dwc_otg_submit_rh_msg_in_status(struct usb_device *dev, void *buffer,
if (hprt0 & DWC2_HPRT0_PRTPWR)
port_status |= USB_PORT_STAT_POWER;
- port_status |= USB_PORT_STAT_HIGH_SPEED;
+ if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == DWC2_HPRT0_PRTSPD_LOW)
+ port_status |= USB_PORT_STAT_LOW_SPEED;
+ else if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) ==
+ DWC2_HPRT0_PRTSPD_HIGH)
+ port_status |= USB_PORT_STAT_HIGH_SPEED;
if (hprt0 & DWC2_HPRT0_PRTENCHNG)
port_change |= USB_PORT_STAT_C_ENABLE;
diff --git a/drivers/usb/host/dwc2.h b/drivers/usb/host/dwc2.h
index ba08fd554f..45408c6f5c 100644
--- a/drivers/usb/host/dwc2.h
+++ b/drivers/usb/host/dwc2.h
@@ -536,6 +536,9 @@ struct dwc2_core_regs {
#define DWC2_HPRT0_PRTPWR_OFFSET 12
#define DWC2_HPRT0_PRTTSTCTL_MASK (0xF << 13)
#define DWC2_HPRT0_PRTTSTCTL_OFFSET 13
+#define DWC2_HPRT0_PRTSPD_HIGH (0 << 17)
+#define DWC2_HPRT0_PRTSPD_FULL (1 << 17)
+#define DWC2_HPRT0_PRTSPD_LOW (2 << 17)
#define DWC2_HPRT0_PRTSPD_MASK (0x3 << 17)
#define DWC2_HPRT0_PRTSPD_OFFSET 17
#define DWC2_HAINT_CH0 (1 << 0)