1 files changed, 2 insertions, 15 deletions

diff --git a/firmware/target/arm/as3525/usb-drv-as3525.c b/firmware/target/arm/as3525/usb-drv-as3525.c
index ca484d0395..740526407d 100644
--- a/firmware/target/arm/as3525/usb-drv-as3525.c
+++ b/firmware/target/arm/as3525/usb-drv-as3525.c
@@ -626,19 +626,6 @@ void usb_drv_cancel_all_transfers(void)
     restore_irq(flags);
 }
 
-static void *virt_to_bus(void *addr)
-{
-    unsigned int x = (long)addr;
-
-    x -= (x & 0x40000000) >> 2; /* fix uncached address */
-
-    if (x >= IRAM_ORIG) { /* iram address */
-        x -= IRAM_ORIG;
-    }
-
-    return (void*)x;
-}
-
 int usb_drv_recv(int ep, void *ptr, int len)
 {
     struct usb_dev_dma_desc *uc_desc = endpoints[ep][1].uc_desc;
@@ -664,7 +651,7 @@ int usb_drv_recv(int ep, void *ptr, int len)
         uc_desc->status   |= USB_DMA_DESC_ZERO_LEN;
         uc_desc->data_ptr  = 0;
     } else {
-        uc_desc->data_ptr  = virt_to_bus(ptr);
+        uc_desc->data_ptr  = ptr;
     }
     USB_OEP_DESC_PTR(ep) = (int)&dmadescs[ep][1];
     USB_OEP_STS(ep)      = USB_EP_STAT_OUT_RCVD; /* clear status */
@@ -716,7 +703,7 @@ void ep_send(int ep, void *ptr, int len)
     if (len == 0)
         uc_desc->status |= USB_DMA_DESC_ZERO_LEN;
 
-    uc_desc->data_ptr  = virt_to_bus(ptr);
+    uc_desc->data_ptr  = ptr;
 
     USB_IEP_DESC_PTR(ep) = (int)&dmadescs[ep][0];
     USB_IEP_STS(ep)      = 0xffffffff; /* clear status */