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| author | Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com> | 2018-07-27 13:11:20 +0530 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-07-30 10:39:18 +0300 |
| commit | b138e23d3dff90c0494925b4c1874227b81bddf7 (patch) | |
| tree | f6f383735e528ea9cbaedfe200101492b98ba576 /drivers/usb/dwc3/core.h | |
| parent | a77004681148f5773c20370812ca7d14443fb091 (diff) | |
| download | linux-b138e23d3dff90c0494925b4c1874227b81bddf7.tar.gz linux-b138e23d3dff90c0494925b4c1874227b81bddf7.tar.bz2 linux-b138e23d3dff90c0494925b4c1874227b81bddf7.zip | |
usb: dwc3: core: Enable AutoRetry feature in the controller
By default when core sees any transaction error (CRC or overflow) it
replies with terminating retry ACK (Retry=1 and Nump == 0).
Enabling this Auto Retry feature in controller will make the core send
a non-terminanting ACK upon such transaction errors. That is, ACK TP
with Retry=1 and Nump != 0.
Doing so will give controller a chance to recover from transient error
conditions.
Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 5f14fb7121b1..5bfb62533e0f 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -238,6 +238,9 @@ #define DWC3_GCTL_GBLHIBERNATIONEN BIT(1) #define DWC3_GCTL_DSBLCLKGTNG BIT(0) +/* Global User Control Register */ +#define DWC3_GUCTL_HSTINAUTORETRY BIT(14) + /* Global User Control 1 Register */ #define DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS BIT(28) #define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24) |