check if dwc2 supports dma, if not, stop working

2023-02-02 23:23:55 +08:00
parent 201b3ebb2c
commit 84dfcef639
1 changed files with 6 additions and 0 deletions
--- a/port/dwc2/usb_hc_dwc2.c
+++ b/port/dwc2/usb_hc_dwc2.c
@@ -464,6 +464,12 @@ int usb_hc_init(void)

    usb_hc_low_level_init();

+    if ((USB_OTG_GLB->CID & (0x1U << 8)) == 0U) {
+        USB_LOG_ERR("This dwc2 version does not support dma, so stop working\r\n");
+        while (1) {
+        }
+    }
+
    USB_OTG_GLB->GAHBCFG &= ~USB_OTG_GAHBCFG_GINT;

    ret = dwc2_core_init();