This adds support for the DWC_sub31 controllers such as those found on Apple's M1 SoC. This version of the controller seems to work fine with the existing driver.
Signed-off-by: Mark Kettenis kettenis@openbsd.org --- drivers/usb/host/xhci-dwc3.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c index 3e0ae80cec..a2ea40bae0 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -70,7 +70,8 @@ int dwc3_core_init(struct dwc3 *dwc3_reg)
revision = readl(&dwc3_reg->g_snpsid); /* This should read as U3 followed by revision number */ - if ((revision & DWC3_GSNPSID_MASK) != 0x55330000) { + if ((revision & DWC3_GSNPSID_MASK) != 0x55330000 && + (revision & DWC3_GSNPSID_MASK) != 0x33310000) { puts("this is not a DesignWare USB3 DRD Core\n"); return -1; }