diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2015-12-15 14:51:17 +0100 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2015-12-15 14:51:17 +0100 |
| commit | e6d111cd909551cec5902358db1e25dcaa8c86bb (patch) | |
| tree | 99673aec563c76a1a4d7ca2d31b90b47549ae40b /drivers/usb/dwc3/core.c | |
| parent | 1dcb97e485420a25461cc44d43f987c8bbf50e7a (diff) | |
| parent | 07cc49f66973f49a391c91bf4b158fa0f2562ca8 (diff) | |
Merge tag 'v4.1.15' into toradex_vf_4.1-nextColibri_VF_LinuxImageV2.5Beta3_20151215
This is the 4.1.15 stable release
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 2bbab3d86fff..8e9518fe7763 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -445,12 +445,18 @@ static int dwc3_core_init(struct dwc3 *dwc) reg = dwc3_readl(dwc->regs, DWC3_GSNPSID); /* This should read as U3 followed by revision number */ - if ((reg & DWC3_GSNPSID_MASK) != 0x55330000) { + if ((reg & DWC3_GSNPSID_MASK) == 0x55330000) { + /* Detected DWC_usb3 IP */ + dwc->revision = reg; + } else if ((reg & DWC3_GSNPSID_MASK) == 0x33310000) { + /* Detected DWC_usb31 IP */ + dwc->revision = dwc3_readl(dwc->regs, DWC3_VER_NUMBER); + dwc->revision |= DWC3_REVISION_IS_DWC31; + } else { dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n"); ret = -ENODEV; goto err0; } - dwc->revision = reg; /* * Write Linux Version Code to our GUID register so it's easy to figure |