atmel_usba: Kill copy_to_fifo() and copy_from_fifo()

These functions do exactly the same as memcpy_toio() and
memcpy_fromio() respectively.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>

1 files changed, 4 insertions, 51 deletions

diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index af8b2a3a2d4a..33a797bf413f 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -324,53 +324,6 @@ static int vbus_is_present(struct usba_udc *udc)
         return 1;
 }
 
-static void copy_to_fifo(void __iomem *fifo, const void *buf, int len)
-{
-        unsigned long tmp;
-
-        DBG(DBG_FIFO, "copy to FIFO (len %d):\n", len);
-        for (; len > 0; len -= 4, buf += 4, fifo += 4) {
-                tmp = *(unsigned long *)buf;
-                if (len >= 4) {
-                        DBG(DBG_FIFO, "  -> %08lx\n", tmp);
-                        __raw_writel(tmp, fifo);
-                } else {
-                        do {
-                                DBG(DBG_FIFO, "  -> %02lx\n", tmp >> 24);
-                                __raw_writeb(tmp >> 24, fifo);
-                                fifo++;
-                                tmp <<= 8;
-                        } while (--len);
-                        break;
-                }
-        }
-}
-
-static void copy_from_fifo(void *buf, void __iomem *fifo, int len)
-{
-        union {
-                unsigned long *w;
-                unsigned char *b;
-        } p;
-        unsigned long tmp;
-
-        DBG(DBG_FIFO, "copy from FIFO (len %d):\n", len);
-        for (p.w = buf; len > 0; len -= 4, p.w++, fifo += 4) {
-                if (len >= 4) {
-                        tmp = __raw_readl(fifo);
-                        *p.w = tmp;
-                        DBG(DBG_FIFO, "  -> %08lx\n", tmp);
-                } else {
-                        do {
-                                tmp = __raw_readb(fifo);
-                                *p.b = tmp;
-                                DBG(DBG_FIFO, " -> %02lx\n", tmp);
-                                fifo++, p.b++;
-                        } while (--len);
-                }
-        }
-}
-
 static void next_fifo_transaction(struct usba_ep *ep, struct usba_request *req)
 {
         unsigned int transaction_len;
@@ -387,7 +340,7 @@ static void next_fifo_transaction(struct usba_ep *ep, struct usba_request *req)
                 ep->ep.name, req, transaction_len,
                 req->last_transaction ? ", done" : "");
 
-        copy_to_fifo(ep->fifo, req->req.buf + req->req.actual, transaction_len);
+        memcpy_toio(ep->fifo, req->req.buf + req->req.actual, transaction_len);
         usba_ep_writel(ep, SET_STA, USBA_TX_PK_RDY);
         req->req.actual += transaction_len;
 }
@@ -476,7 +429,7 @@ static void receive_data(struct usba_ep *ep)
                         bytecount = req->req.length - req->req.actual;
                 }
 
-                copy_from_fifo(req->req.buf + req->req.actual,
+                memcpy_fromio(req->req.buf + req->req.actual,
                                 ep->fifo, bytecount);
                 req->req.actual += bytecount;
 
@@ -1231,7 +1184,7 @@ static int do_test_mode(struct usba_udc *udc)
                 } else {
                         usba_ep_writel(ep, CTL_ENB, USBA_EPT_ENABLE);
                         usba_writel(udc, TST, USBA_TST_PKT_MODE);
-                        copy_to_fifo(ep->fifo, test_packet_buffer,
+                        memcpy_toio(ep->fifo, test_packet_buffer,
                                         sizeof(test_packet_buffer));
                         usba_ep_writel(ep, SET_STA, USBA_TX_PK_RDY);
                         dev_info(dev, "Entering Test_Packet mode...\n");
@@ -1536,7 +1489,7 @@ restart:
                 }
 
                 DBG(DBG_FIFO, "Copying ctrl request from 0x%p:\n", ep->fifo);
-                copy_from_fifo(crq.data, ep->fifo, sizeof(crq));
+                memcpy_fromio(crq.data, ep->fifo, sizeof(crq));
 
                 /* Free up one bank in the FIFO so that we can
                  * generate or receive a reply right away. */