summaryrefslogtreecommitdiff
path: root/drivers/usb/dwc3
diff options
context:
space:
mode:
authorPratyush Anand <pratyush.anand@st.com>2012-06-21 12:14:29 (GMT)
committerFelipe Balbi <balbi@ti.com>2012-06-22 10:22:46 (GMT)
commit58a0f23fddd0a71d8fa22e6ef7627298a8ed29a6 (patch)
treec034dd259388b1a8d063d6afd79ecbf633f522ab /drivers/usb/dwc3
parent45627ac6a4f063d19b0bd9863d20ac1dabda99a7 (diff)
downloadlinux-fsl-qoriq-58a0f23fddd0a71d8fa22e6ef7627298a8ed29a6.tar.xz
USB: DWC3: Issue device soft reset before core soft reset
Synopsys specification clearly states under section "Device Power-On or Soft Reset" that DCTL.CSftRst=1 should be first step. So, just follow what specification says. Signed-off-by: Pratyush Anand <pratyush.anand@st.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index ac151e9..c34452a 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -335,8 +335,6 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc)
}
dwc->revision = reg;
- dwc3_core_soft_reset(dwc);
-
/* issue device SoftReset too */
timeout = jiffies + msecs_to_jiffies(500);
dwc3_writel(dwc->regs, DWC3_DCTL, DWC3_DCTL_CSFTRST);
@@ -354,6 +352,8 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc)
cpu_relax();
} while (true);
+ dwc3_core_soft_reset(dwc);
+
dwc3_cache_hwparams(dwc);
reg = dwc3_readl(dwc->regs, DWC3_GCTL);