[U-Boot] [PATCH 1/6] usb: dwc2: Add support for v3 snpsid value

[Peter Griffin]

This has been tested to the extent that I can enumerate
a asix usb networking adapter and boot a kernel over usb
on the 96boards hikey u-boot port I'm currently doing.

Signed-off-by: Peter Griffin <peter.griffin at linaro.org>
---
 drivers/usb/host/dwc2.c | 3 ++-
 drivers/usb/host/dwc2.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index e8142ac..19a6007 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -1015,7 +1015,8 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
 	snpsid = readl(&regs->gsnpsid);
 	printf("Core Release: %x.%03x\n", snpsid >> 12 & 0xf, snpsid & 0xfff);
 
-	if ((snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_2xx) {
+	if ((snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_2xx &&
+	    (snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_3xx) {
 		printf("SNPSID invalid (not DWC2 OTG device): %08x\n", snpsid);
 		return -ENODEV;
 	}
diff --git a/drivers/usb/host/dwc2.h b/drivers/usb/host/dwc2.h
index ba08fd5..1e0f502 100644
--- a/drivers/usb/host/dwc2.h
+++ b/drivers/usb/host/dwc2.h
@@ -729,6 +729,7 @@ struct dwc2_core_regs {
 #define DWC2_PCGCCTL_DEEP_SLEEP				(1 << 7)
 #define DWC2_PCGCCTL_DEEP_SLEEP_OFFSET			7
 #define DWC2_SNPSID_DEVID_VER_2xx			(0x4f542 << 12)
+#define DWC2_SNPSID_DEVID_VER_3xx			(0x4f543 << 12)
 #define DWC2_SNPSID_DEVID_MASK				(0xfffff << 12)
 #define DWC2_SNPSID_DEVID_OFFSET			12
 
-- 
1.9.1