/*
- * (C) Copyright 2007 Michal Simek
+ * (C) Copyright 2007-2009 Michal Simek
+ * (C) Copyright 2003 Xilinx Inc.
*
* Michal SIMEK <monstr@monstr.eu>
*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
#include <common.h>
#include <net.h>
#include <config.h>
+#include <malloc.h>
#include <asm/io.h>
-#ifdef XILINX_EMACLITE_BASEADDR
-
#undef DEBUG
#define ENET_MAX_MTU PKTSIZE
#define XEL_RSR_RECV_IE_MASK 0x00000008UL
typedef struct {
- unsigned int baseaddress; /* Base address for device (IPIF) */
- unsigned int nexttxbuffertouse; /* Next TX buffer to write to */
- unsigned int nextrxbuffertouse; /* Next RX buffer to read from */
- unsigned char deviceid; /* Unique ID of device - for future */
+ u32 baseaddress; /* Base address for device (IPIF) */
+ u32 nexttxbuffertouse; /* Next TX buffer to write to */
+ u32 nextrxbuffertouse; /* Next RX buffer to read from */
+ uchar deviceid; /* Unique ID of device - for future */
} xemaclite;
static xemaclite emaclite;
-static char etherrxbuff[PKTSIZE_ALIGN/4]; /* Receive buffer */
-
-/* hardcoded MAC address for the Xilinx EMAC Core when env is nowhere*/
-#ifdef CFG_ENV_IS_NOWHERE
-static u8 emacaddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
-#endif
+static u32 etherrxbuff[PKTSIZE_ALIGN/4]; /* Receive buffer */
-void xemaclite_alignedread (u32 * srcptr, void *destptr, unsigned bytecount)
+static void xemaclite_alignedread (u32 *srcptr, void *destptr, u32 bytecount)
{
- unsigned int i;
+ u32 i;
u32 alignbuffer;
u32 *to32ptr;
u32 *from32ptr;
}
}
-void xemaclite_alignedwrite (void *srcptr, u32 destptr, unsigned bytecount)
+static void xemaclite_alignedwrite (void *srcptr, u32 destptr, u32 bytecount)
{
- unsigned i;
+ u32 i;
u32 alignbuffer;
u32 *to32ptr = (u32 *) destptr;
u32 *from32ptr;
*to32ptr++ = alignbuffer;
}
-void eth_halt (void)
+static void emaclite_halt(struct eth_device *dev)
{
-#ifdef DEBUG
- puts ("eth_halt\n");
-#endif
+ debug ("eth_halt\n");
}
-int eth_init (bd_t * bis)
+static int emaclite_init(struct eth_device *dev, bd_t *bis)
{
-#ifdef DEBUG
- puts ("EmacLite Initialization Started\n");
-#endif
+ debug ("EmacLite Initialization Started\n");
memset (&emaclite, 0, sizeof (xemaclite));
- emaclite.baseaddress = XILINX_EMACLITE_BASEADDR;
-
- if (!getenv("ethaddr")) {
- memcpy(bis->bi_enetaddr, emacaddr, ENET_ADDR_LENGTH);
- }
+ emaclite.baseaddress = dev->iobase;
/*
* TX - TX_PING & TX_PONG initialization
/* Restart PING TX */
out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, 0);
/* Copy MAC address */
- xemaclite_alignedwrite (bis->bi_enetaddr,
+ xemaclite_alignedwrite (dev->enetaddr,
emaclite.baseaddress, ENET_ADDR_LENGTH);
/* Set the length */
out_be32 (emaclite.baseaddress + XEL_TPLR_OFFSET, ENET_ADDR_LENGTH);
while ((in_be32 (emaclite.baseaddress + XEL_TSR_OFFSET) &
XEL_TSR_PROG_MAC_ADDR) != 0) ;
-#ifdef XILINX_EMACLITE_TX_PING_PONG
+#ifdef CONFIG_XILINX_EMACLITE_TX_PING_PONG
/* The same operation with PONG TX */
out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET + XEL_BUFFER_OFFSET, 0);
- xemaclite_alignedwrite (bis->bi_enetaddr, emaclite.baseaddress +
+ xemaclite_alignedwrite (dev->enetaddr, emaclite.baseaddress +
XEL_BUFFER_OFFSET, ENET_ADDR_LENGTH);
out_be32 (emaclite.baseaddress + XEL_TPLR_OFFSET, ENET_ADDR_LENGTH);
out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET + XEL_BUFFER_OFFSET,
XEL_TSR_PROG_MAC_ADDR);
while ((in_be32 (emaclite.baseaddress + XEL_TSR_OFFSET +
- XEL_BUFFER_OFFSET) & XEL_TSR_PROG_MAC_ADDR) != 0) ;
+ XEL_BUFFER_OFFSET) & XEL_TSR_PROG_MAC_ADDR) != 0) ;
#endif
/*
*/
/* Write out the value to flush the RX buffer */
out_be32 (emaclite.baseaddress + XEL_RSR_OFFSET, XEL_RSR_RECV_IE_MASK);
-#ifdef XILINX_EMACLITE_RX_PING_PONG
+#ifdef CONFIG_XILINX_EMACLITE_RX_PING_PONG
out_be32 (emaclite.baseaddress + XEL_RSR_OFFSET + XEL_BUFFER_OFFSET,
XEL_RSR_RECV_IE_MASK);
#endif
-#ifdef DEBUG
- puts ("EmacLite Initialization complete\n");
-#endif
+ debug ("EmacLite Initialization complete\n");
return 0;
}
-int xemaclite_txbufferavailable (xemaclite * instanceptr)
+static int xemaclite_txbufferavailable (xemaclite *instanceptr)
{
u32 reg;
u32 txpingbusy;
return (!(txpingbusy && txpongbusy));
}
-int eth_send (volatile void *ptr, int len) {
-
- unsigned int reg;
- unsigned int baseaddress;
+static int emaclite_send (struct eth_device *dev, volatile void *ptr, int len)
+{
+ u32 reg;
+ u32 baseaddress;
- unsigned maxtry = 1000;
+ u32 maxtry = 1000;
if (len > ENET_MAX_MTU)
len = ENET_MAX_MTU;
printf ("Error: Timeout waiting for ethernet TX buffer\n");
/* Restart PING TX */
out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, 0);
-#ifdef XILINX_EMACLITE_TX_PING_PONG
+#ifdef CONFIG_XILINX_EMACLITE_TX_PING_PONG
out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET +
XEL_BUFFER_OFFSET, 0);
#endif
- return 0;
+ return -1;
}
/* Determine the expected TX buffer address */
&& ((in_be32 ((baseaddress) + XEL_TSR_OFFSET)
& XEL_TSR_XMIT_ACTIVE_MASK) == 0)) {
-#ifdef XILINX_EMACLITE_TX_PING_PONG
+#ifdef CONFIG_XILINX_EMACLITE_TX_PING_PONG
emaclite.nexttxbuffertouse ^= XEL_BUFFER_OFFSET;
#endif
-#ifdef DEBUG
- printf ("Send packet from 0x%x\n", baseaddress);
-#endif
+ debug ("Send packet from 0x%x\n", baseaddress);
/* Write the frame to the buffer */
xemaclite_alignedwrite ((void *) ptr, baseaddress, len);
out_be32 (baseaddress + XEL_TPLR_OFFSET,(len &
reg |= XEL_TSR_XMIT_ACTIVE_MASK;
}
out_be32 (baseaddress + XEL_TSR_OFFSET, reg);
- return 1;
+ return 0;
}
-#ifdef XILINX_EMACLITE_TX_PING_PONG
+#ifdef CONFIG_XILINX_EMACLITE_TX_PING_PONG
/* Switch to second buffer */
baseaddress ^= XEL_BUFFER_OFFSET;
/* Determine if the expected buffer address is empty */
if (((reg & XEL_TSR_XMIT_BUSY_MASK) == 0)
&& ((in_be32 ((baseaddress) + XEL_TSR_OFFSET)
& XEL_TSR_XMIT_ACTIVE_MASK) == 0)) {
-#ifdef DEBUG
- printf ("Send packet from 0x%x\n", baseaddress);
-#endif
+ debug ("Send packet from 0x%x\n", baseaddress);
/* Write the frame to the buffer */
xemaclite_alignedwrite ((void *) ptr, baseaddress, len);
out_be32 (baseaddress + XEL_TPLR_OFFSET,(len &
reg |= XEL_TSR_XMIT_ACTIVE_MASK;
}
out_be32 (baseaddress + XEL_TSR_OFFSET, reg);
- return 1;
+ return 0;
}
#endif
puts ("Error while sending frame\n");
- return 0;
+ return -1;
}
-int eth_rx (void)
+static int emaclite_recv(struct eth_device *dev)
{
- unsigned int length;
- unsigned int reg;
- unsigned int baseaddress;
+ u32 length;
+ u32 reg;
+ u32 baseaddress;
baseaddress = emaclite.baseaddress + emaclite.nextrxbuffertouse;
reg = in_be32 (baseaddress + XEL_RSR_OFFSET);
-#ifdef DEBUG
- printf ("Testing data at address 0x%x\n", baseaddress);
-#endif
+ debug ("Testing data at address 0x%x\n", baseaddress);
if ((reg & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
-#ifdef XILINX_EMACLITE_RX_PING_PONG
+#ifdef CONFIG_XILINX_EMACLITE_RX_PING_PONG
emaclite.nextrxbuffertouse ^= XEL_BUFFER_OFFSET;
#endif
} else {
-#ifndef XILINX_EMACLITE_RX_PING_PONG
-#ifdef DEBUG
- printf ("No data was available - address 0x%x\n", baseaddress);
-#endif
+#ifndef CONFIG_XILINX_EMACLITE_RX_PING_PONG
+ debug ("No data was available - address 0x%x\n", baseaddress);
return 0;
#else
baseaddress ^= XEL_BUFFER_OFFSET;
reg = in_be32 (baseaddress + XEL_RSR_OFFSET);
if ((reg & XEL_RSR_RECV_DONE_MASK) !=
XEL_RSR_RECV_DONE_MASK) {
-#ifdef DEBUG
- printf ("No data was available - address 0x%x\n",
+ debug ("No data was available - address 0x%x\n",
baseaddress);
-#endif
return 0;
}
#endif
}
/* Get the length of the frame that arrived */
- switch(((in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0xC)) &
+ switch(((ntohl(in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0xC))) &
0xFFFF0000 ) >> 16) {
case 0x806:
length = 42 + 20; /* FIXME size of ARP */
-#ifdef DEBUG
- puts ("ARP Packet\n");
-#endif
+ debug ("ARP Packet\n");
break;
case 0x800:
length = 14 + 14 +
- (((in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0x10)) &
+ (((ntohl(in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0x10))) &
0xFFFF0000) >> 16); /* FIXME size of IP packet */
-#ifdef DEBUG
- puts("IP Packet\n");
-#endif
+ debug ("IP Packet\n");
break;
default:
-#ifdef DEBUG
- puts("Other Packet\n");
-#endif
+ debug ("Other Packet\n");
length = ENET_MAX_MTU;
break;
}
reg &= ~XEL_RSR_RECV_DONE_MASK;
out_be32 (baseaddress + XEL_RSR_OFFSET, reg);
-#ifdef DEBUG
- printf ("Packet receive from 0x%x, length %dB\n", baseaddress, length);
-#endif
+ debug ("Packet receive from 0x%x, length %dB\n", baseaddress, length);
NetReceive ((uchar *) etherrxbuff, length);
- return 1;
+ return length;
}
-#endif
+
+int xilinx_emaclite_initialize (bd_t *bis, int base_addr)
+{
+ struct eth_device *dev;
+
+ dev = malloc(sizeof(*dev));
+ if (dev == NULL)
+ return -1;
+
+ memset(dev, 0, sizeof(*dev));
+ sprintf(dev->name, "Xelite.%x", base_addr);
+
+ dev->iobase = base_addr;
+ dev->priv = 0;
+ dev->init = emaclite_init;
+ dev->halt = emaclite_halt;
+ dev->send = emaclite_send;
+ dev->recv = emaclite_recv;
+
+ eth_register(dev);
+
+ return 1;
+}
projects / karo-tx-uboot.git / blobdiff