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-rw-r--r--drivers/net/xilinx_emac.c233
-rw-r--r--drivers/net/xilinx_emac.h121
-rw-r--r--drivers/net/xilinx_emaclite.c260
3 files changed, 318 insertions, 296 deletions
diff --git a/drivers/net/xilinx_emac.c b/drivers/net/xilinx_emac.c
index d44f31e..23567cc 100644
--- a/drivers/net/xilinx_emac.c
+++ b/drivers/net/xilinx_emac.c
@@ -41,76 +41,78 @@
static unsigned int etherrxbuff[PKTSIZE_ALIGN/4]; /* Receive buffer */
-static u8 EMACAddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
+static u8 emacaddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
-static XEmac Emac;
+static xemac emac;
void eth_halt(void)
{
- return;
+#ifdef DEBUG
+ puts ("eth_halt\n");
+#endif
}
int eth_init(bd_t * bis)
{
- u32 HelpReg;
+ u32 helpreg;
#ifdef DEBUG
printf("EMAC Initialization Started\n\r");
#endif
- if (Emac.IsStarted) {
+ if (emac.isstarted) {
puts("Emac is started\n");
return 0;
}
- memset (&Emac, 0, sizeof (XEmac));
+ memset (&emac, 0, sizeof (xemac));
- Emac.BaseAddress = XILINX_EMAC_BASEADDR;
+ emac.baseaddress = XILINX_EMAC_BASEADDR;
/* Setting up FIFOs */
- Emac.RecvFifo.RegBaseAddress = Emac.BaseAddress +
+ emac.recvfifo.regbaseaddress = emac.baseaddress +
XEM_PFIFO_RXREG_OFFSET;
- Emac.RecvFifo.DataBaseAddress = Emac.BaseAddress +
+ emac.recvfifo.databaseaddress = emac.baseaddress +
XEM_PFIFO_RXDATA_OFFSET;
- out_be32 (Emac.RecvFifo.RegBaseAddress, XPF_RESET_FIFO_MASK);
+ out_be32 (emac.recvfifo.regbaseaddress, XPF_RESET_FIFO_MASK);
- Emac.SendFifo.RegBaseAddress = Emac.BaseAddress +
+ emac.sendfifo.regbaseaddress = emac.baseaddress +
XEM_PFIFO_TXREG_OFFSET;
- Emac.SendFifo.DataBaseAddress = Emac.BaseAddress +
+ emac.sendfifo.databaseaddress = emac.baseaddress +
XEM_PFIFO_TXDATA_OFFSET;
- out_be32 (Emac.SendFifo.RegBaseAddress, XPF_RESET_FIFO_MASK);
+ out_be32 (emac.sendfifo.regbaseaddress, XPF_RESET_FIFO_MASK);
/* Reset the entire IPIF */
- out_be32 (Emac.BaseAddress + XIIF_V123B_RESETR_OFFSET,
+ out_be32 (emac.baseaddress + XIIF_V123B_RESETR_OFFSET,
XIIF_V123B_RESET_MASK);
/* Stopping EMAC for setting up MAC */
- HelpReg = in_be32 (Emac.BaseAddress + XEM_ECR_OFFSET);
- HelpReg &= ~(XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK);
- out_be32 (Emac.BaseAddress + XEM_ECR_OFFSET, HelpReg);
+ helpreg = in_be32 (emac.baseaddress + XEM_ECR_OFFSET);
+ helpreg &= ~(XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK);
+ out_be32 (emac.baseaddress + XEM_ECR_OFFSET, helpreg);
if (!getenv("ethaddr")) {
- memcpy(bis->bi_enetaddr, EMACAddr, ENET_ADDR_LENGTH);
+ memcpy(bis->bi_enetaddr, emacaddr, ENET_ADDR_LENGTH);
}
/* Set the device station address high and low registers */
- HelpReg = (bis->bi_enetaddr[0] << 8) | bis->bi_enetaddr[1];
- out_be32 (Emac.BaseAddress + XEM_SAH_OFFSET, HelpReg);
- HelpReg = (bis->bi_enetaddr[2] << 24) | (bis->bi_enetaddr[3] << 16) |
+ helpreg = (bis->bi_enetaddr[0] << 8) | bis->bi_enetaddr[1];
+ out_be32 (emac.baseaddress + XEM_SAH_OFFSET, helpreg);
+ helpreg = (bis->bi_enetaddr[2] << 24) | (bis->bi_enetaddr[3] << 16) |
(bis->bi_enetaddr[4] << 8) | bis->bi_enetaddr[5];
- out_be32 (Emac.BaseAddress + XEM_SAL_OFFSET, HelpReg);
+ out_be32 (emac.baseaddress + XEM_SAL_OFFSET, helpreg);
- HelpReg = XEM_ECR_UNICAST_ENABLE_MASK | XEM_ECR_BROAD_ENABLE_MASK |
+ helpreg = XEM_ECR_UNICAST_ENABLE_MASK | XEM_ECR_BROAD_ENABLE_MASK |
XEM_ECR_FULL_DUPLEX_MASK | XEM_ECR_XMIT_FCS_ENABLE_MASK |
XEM_ECR_XMIT_PAD_ENABLE_MASK | XEM_ECR_PHY_ENABLE_MASK;
- out_be32 (Emac.BaseAddress + XEM_ECR_OFFSET, HelpReg);
+ out_be32 (emac.baseaddress + XEM_ECR_OFFSET, helpreg);
- Emac.IsStarted = 1;
+ emac.isstarted = 1;
/* Enable the transmitter, and receiver */
- HelpReg = in_be32 (Emac.BaseAddress + XEM_ECR_OFFSET);
- HelpReg &= ~(XEM_ECR_XMIT_RESET_MASK | XEM_ECR_RECV_RESET_MASK);
- HelpReg |= (XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK);
- out_be32 (Emac.BaseAddress + XEM_ECR_OFFSET, HelpReg);
+ helpreg = in_be32 (emac.baseaddress + XEM_ECR_OFFSET);
+ helpreg &= ~(XEM_ECR_XMIT_RESET_MASK | XEM_ECR_RECV_RESET_MASK);
+ helpreg |= (XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK);
+ out_be32 (emac.baseaddress + XEM_ECR_OFFSET, helpreg);
printf("EMAC Initialization complete\n\r");
return 0;
@@ -118,12 +120,12 @@ int eth_init(bd_t * bis)
int eth_send(volatile void *ptr, int len)
{
- u32 IntrStatus;
- u32 XmitStatus;
- u32 FifoCount;
- u32 WordCount;
- u32 ExtraByteCount;
- u32 *WordBuffer = (u32 *) ptr;
+ u32 intrstatus;
+ u32 xmitstatus;
+ u32 fifocount;
+ u32 wordcount;
+ u32 extrabytecount;
+ u32 *wordbuffer = (u32 *) ptr;
if (len > ENET_MAX_MTU)
len = ENET_MAX_MTU;
@@ -135,20 +137,20 @@ int eth_send(volatile void *ptr, int len)
* continue. The upper layer software should reset the device to resolve
* the error.
*/
- IntrStatus = in_be32 ((Emac.BaseAddress) + XIIF_V123B_IISR_OFFSET);
- if (IntrStatus & (XEM_EIR_XMIT_SFIFO_OVER_MASK |
+ intrstatus = in_be32 ((emac.baseaddress) + XIIF_V123B_IISR_OFFSET);
+ if (intrstatus & (XEM_EIR_XMIT_SFIFO_OVER_MASK |
XEM_EIR_XMIT_LFIFO_OVER_MASK)) {
#ifdef DEBUG
puts ("Transmitting overrun error\n");
#endif
return 0;
- } else if (IntrStatus & (XEM_EIR_XMIT_SFIFO_UNDER_MASK |
+ } else if (intrstatus & (XEM_EIR_XMIT_SFIFO_UNDER_MASK |
XEM_EIR_XMIT_LFIFO_UNDER_MASK)) {
#ifdef DEBUG
puts ("Transmitting underrun error\n");
#endif
return 0;
- } else if (in_be32 (Emac.SendFifo.RegBaseAddress +
+ } else if (in_be32 (emac.sendfifo.regbaseaddress +
XPF_COUNT_STATUS_REG_OFFSET) & XPF_DEADLOCK_MASK) {
#ifdef DEBUG
puts("Transmitting fifo error\n");
@@ -165,9 +167,9 @@ int eth_send(volatile void *ptr, int len)
* Clear the latched LFIFO_FULL bit so next time around the most
* current status is represented
*/
- if (IntrStatus & XEM_EIR_XMIT_LFIFO_FULL_MASK) {
- out_be32 ((Emac.BaseAddress) + XIIF_V123B_IISR_OFFSET, IntrStatus
- & XEM_EIR_XMIT_LFIFO_FULL_MASK);
+ if (intrstatus & XEM_EIR_XMIT_LFIFO_FULL_MASK) {
+ out_be32 ((emac.baseaddress) + XIIF_V123B_IISR_OFFSET,
+ intrstatus & XEM_EIR_XMIT_LFIFO_FULL_MASK);
#ifdef DEBUG
puts ("Fifo is full\n");
#endif
@@ -175,72 +177,72 @@ int eth_send(volatile void *ptr, int len)
}
/* get the count of how many words may be inserted into the FIFO */
- FifoCount = in_be32 (Emac.SendFifo.RegBaseAddress +
+ fifocount = in_be32 (emac.sendfifo.regbaseaddress +
XPF_COUNT_STATUS_REG_OFFSET) & XPF_COUNT_MASK;
- WordCount = len >> 2;
- ExtraByteCount = len & 0x3;
+ wordcount = len >> 2;
+ extrabytecount = len & 0x3;
- if (FifoCount < WordCount) {
+ if (fifocount < wordcount) {
#ifdef DEBUG
puts ("Sending packet is larger then size of FIFO\n");
#endif
return 0;
}
- for (FifoCount = 0; FifoCount < WordCount; FifoCount++) {
- out_be32 (Emac.SendFifo.DataBaseAddress, WordBuffer[FifoCount]);
+ for (fifocount = 0; fifocount < wordcount; fifocount++) {
+ out_be32 (emac.sendfifo.databaseaddress, wordbuffer[fifocount]);
}
- if (ExtraByteCount > 0) {
- u32 LastWord = 0;
- u8 *ExtraBytesBuffer = (u8 *) (WordBuffer + WordCount);
-
- if (ExtraByteCount == 1) {
- LastWord = ExtraBytesBuffer[0] << 24;
- } else if (ExtraByteCount == 2) {
- LastWord = ExtraBytesBuffer[0] << 24 |
- ExtraBytesBuffer[1] << 16;
- } else if (ExtraByteCount == 3) {
- LastWord = ExtraBytesBuffer[0] << 24 |
- ExtraBytesBuffer[1] << 16 |
- ExtraBytesBuffer[2] << 8;
+ if (extrabytecount > 0) {
+ u32 lastword = 0;
+ u8 *extrabytesbuffer = (u8 *) (wordbuffer + wordcount);
+
+ if (extrabytecount == 1) {
+ lastword = extrabytesbuffer[0] << 24;
+ } else if (extrabytecount == 2) {
+ lastword = extrabytesbuffer[0] << 24 |
+ extrabytesbuffer[1] << 16;
+ } else if (extrabytecount == 3) {
+ lastword = extrabytesbuffer[0] << 24 |
+ extrabytesbuffer[1] << 16 |
+ extrabytesbuffer[2] << 8;
}
- out_be32 (Emac.SendFifo.DataBaseAddress, LastWord);
+ out_be32 (emac.sendfifo.databaseaddress, lastword);
}
/* Loop on the MAC's status to wait for any pause to complete */
- IntrStatus = in_be32 ((Emac.BaseAddress) + XIIF_V123B_IISR_OFFSET);
- while ((IntrStatus & XEM_EIR_XMIT_PAUSE_MASK) != 0) {
- IntrStatus = in_be32 ((Emac.BaseAddress) +
+ intrstatus = in_be32 ((emac.baseaddress) + XIIF_V123B_IISR_OFFSET);
+ while ((intrstatus & XEM_EIR_XMIT_PAUSE_MASK) != 0) {
+ intrstatus = in_be32 ((emac.baseaddress) +
XIIF_V123B_IISR_OFFSET);
/* Clear the pause status from the transmit status register */
- out_be32 ((Emac.BaseAddress) + XIIF_V123B_IISR_OFFSET,
- IntrStatus & XEM_EIR_XMIT_PAUSE_MASK);
+ out_be32 ((emac.baseaddress) + XIIF_V123B_IISR_OFFSET,
+ intrstatus & XEM_EIR_XMIT_PAUSE_MASK);
}
/*
* Set the MAC's transmit packet length register to tell it to transmit
*/
- out_be32 (Emac.BaseAddress + XEM_TPLR_OFFSET, len);
+ out_be32 (emac.baseaddress + XEM_TPLR_OFFSET, len);
/*
* Loop on the MAC's status to wait for the transmit to complete.
* The transmit status is in the FIFO when the XMIT_DONE bit is set.
*/
do {
- IntrStatus = in_be32 ((Emac.BaseAddress) +
+ intrstatus = in_be32 ((emac.baseaddress) +
XIIF_V123B_IISR_OFFSET);
}
- while ((IntrStatus & XEM_EIR_XMIT_DONE_MASK) == 0);
+ while ((intrstatus & XEM_EIR_XMIT_DONE_MASK) == 0);
- XmitStatus = in_be32 (Emac.BaseAddress + XEM_TSR_OFFSET);
+ xmitstatus = in_be32 (emac.baseaddress + XEM_TSR_OFFSET);
- if (IntrStatus & (XEM_EIR_XMIT_SFIFO_OVER_MASK |
+ if (intrstatus & (XEM_EIR_XMIT_SFIFO_OVER_MASK |
XEM_EIR_XMIT_LFIFO_OVER_MASK)) {
#ifdef DEBUG
puts ("Transmitting overrun error\n");
#endif
return 0;
- } else if (IntrStatus & (XEM_EIR_XMIT_SFIFO_UNDER_MASK |
+ } else if (intrstatus & (XEM_EIR_XMIT_SFIFO_UNDER_MASK |
XEM_EIR_XMIT_LFIFO_UNDER_MASK)) {
#ifdef DEBUG
puts ("Transmitting underrun error\n");
@@ -249,15 +251,15 @@ int eth_send(volatile void *ptr, int len)
}
/* Clear the interrupt status register of transmit statuses */
- out_be32 ((Emac.BaseAddress) + XIIF_V123B_IISR_OFFSET,
- IntrStatus & XEM_EIR_XMIT_ALL_MASK);
+ out_be32 ((emac.baseaddress) + XIIF_V123B_IISR_OFFSET,
+ intrstatus & XEM_EIR_XMIT_ALL_MASK);
/*
* Collision errors are stored in the transmit status register
* instead of the interrupt status register
*/
- if ((XmitStatus & XEM_TSR_EXCESS_DEFERRAL_MASK) ||
- (XmitStatus & XEM_TSR_LATE_COLLISION_MASK)) {
+ if ((xmitstatus & XEM_TSR_EXCESS_DEFERRAL_MASK) ||
+ (xmitstatus & XEM_TSR_LATE_COLLISION_MASK)) {
#ifdef DEBUG
puts ("Transmitting collision error\n");
#endif
@@ -268,17 +270,17 @@ int eth_send(volatile void *ptr, int len)
int eth_rx(void)
{
- u32 PktLength;
- u32 IntrStatus;
- u32 FifoCount;
- u32 WordCount;
- u32 ExtraByteCount;
- u32 LastWord;
- u8 *ExtraBytesBuffer;
-
- if (in_be32 (Emac.RecvFifo.RegBaseAddress + XPF_COUNT_STATUS_REG_OFFSET)
+ u32 pktlength;
+ u32 intrstatus;
+ u32 fifocount;
+ u32 wordcount;
+ u32 extrabytecount;
+ u32 lastword;
+ u8 *extrabytesbuffer;
+
+ if (in_be32 (emac.recvfifo.regbaseaddress + XPF_COUNT_STATUS_REG_OFFSET)
& XPF_DEADLOCK_MASK) {
- out_be32 (Emac.RecvFifo.RegBaseAddress, XPF_RESET_FIFO_MASK);
+ out_be32 (emac.recvfifo.regbaseaddress, XPF_RESET_FIFO_MASK);
#ifdef DEBUG
puts ("Receiving FIFO deadlock\n");
#endif
@@ -286,17 +288,18 @@ int eth_rx(void)
}
/*
- * Get the interrupt status to know what happened (whether an error occurred
- * and/or whether frames have been received successfully). When clearing the
- * intr status register, clear only statuses that pertain to receive.
+ * Get the interrupt status to know what happened (whether an error
+ * occurred and/or whether frames have been received successfully).
+ * When clearing the intr status register, clear only statuses that
+ * pertain to receive.
*/
- IntrStatus = in_be32 ((Emac.BaseAddress) + XIIF_V123B_IISR_OFFSET);
+ intrstatus = in_be32 ((emac.baseaddress) + XIIF_V123B_IISR_OFFSET);
/*
* Before reading from the length FIFO, make sure the length FIFO is not
* empty. We could cause an underrun error if we try to read from an
* empty FIFO.
*/
- if (!(IntrStatus & XEM_EIR_RECV_DONE_MASK)) {
+ if (!(intrstatus & XEM_EIR_RECV_DONE_MASK)) {
#ifdef DEBUG
/* puts("Receiving FIFO is empty\n"); */
#endif
@@ -307,8 +310,8 @@ int eth_rx(void)
* Determine, from the MAC, the length of the next packet available
* in the data FIFO (there should be a non-zero length here)
*/
- PktLength = in_be32 (Emac.BaseAddress + XEM_RPLR_OFFSET);
- if (!PktLength) {
+ pktlength = in_be32 (emac.baseaddress + XEM_RPLR_OFFSET);
+ if (!pktlength) {
return 0;
}
@@ -320,53 +323,53 @@ int eth_rx(void)
* in the IPIF, which means it may indicate a non-empty condition even
* though there is something in the FIFO.
*/
- out_be32 ((Emac.BaseAddress) + XIIF_V123B_IISR_OFFSET,
+ out_be32 ((emac.baseaddress) + XIIF_V123B_IISR_OFFSET,
XEM_EIR_RECV_DONE_MASK);
- FifoCount = in_be32 (Emac.RecvFifo.RegBaseAddress +
+ fifocount = in_be32 (emac.recvfifo.regbaseaddress +
XPF_COUNT_STATUS_REG_OFFSET) & XPF_COUNT_MASK;
- if ((FifoCount * 4) < PktLength) {
+ if ((fifocount * 4) < pktlength) {
#ifdef DEBUG
puts ("Receiving FIFO is smaller than packet size.\n");
#endif
return 0;
}
- WordCount = PktLength >> 2;
- ExtraByteCount = PktLength & 0x3;
+ wordcount = pktlength >> 2;
+ extrabytecount = pktlength & 0x3;
- for (FifoCount = 0; FifoCount < WordCount; FifoCount++) {
- etherrxbuff[FifoCount] =
- in_be32 (Emac.RecvFifo.DataBaseAddress);
+ for (fifocount = 0; fifocount < wordcount; fifocount++) {
+ etherrxbuff[fifocount] =
+ in_be32 (emac.recvfifo.databaseaddress);
}
/*
* if there are extra bytes to handle, read the last word from the FIFO
* and insert the extra bytes into the buffer
*/
- if (ExtraByteCount > 0) {
- ExtraBytesBuffer = (u8 *) (etherrxbuff + WordCount);
+ if (extrabytecount > 0) {
+ extrabytesbuffer = (u8 *) (etherrxbuff + wordcount);
- LastWord = in_be32 (Emac.RecvFifo.DataBaseAddress);
+ lastword = in_be32 (emac.recvfifo.databaseaddress);
/*
* one extra byte in the last word, put the byte into the next
* location of the buffer, bytes in a word of the FIFO are
* ordered from most significant byte to least
*/
- if (ExtraByteCount == 1) {
- ExtraBytesBuffer[0] = (u8) (LastWord >> 24);
- } else if (ExtraByteCount == 2) {
- ExtraBytesBuffer[0] = (u8) (LastWord >> 24);
- ExtraBytesBuffer[1] = (u8) (LastWord >> 16);
- } else if (ExtraByteCount == 3) {
- ExtraBytesBuffer[0] = (u8) (LastWord >> 24);
- ExtraBytesBuffer[1] = (u8) (LastWord >> 16);
- ExtraBytesBuffer[2] = (u8) (LastWord >> 8);
+ if (extrabytecount == 1) {
+ extrabytesbuffer[0] = (u8) (lastword >> 24);
+ } else if (extrabytecount == 2) {
+ extrabytesbuffer[0] = (u8) (lastword >> 24);
+ extrabytesbuffer[1] = (u8) (lastword >> 16);
+ } else if (extrabytecount == 3) {
+ extrabytesbuffer[0] = (u8) (lastword >> 24);
+ extrabytesbuffer[1] = (u8) (lastword >> 16);
+ extrabytesbuffer[2] = (u8) (lastword >> 8);
}
}
- NetReceive((uchar *)etherrxbuff, PktLength);
+ NetReceive((uchar *)etherrxbuff, pktlength);
return 1;
}
#endif
diff --git a/drivers/net/xilinx_emac.h b/drivers/net/xilinx_emac.h
index 7c00eeb..966598e 100644
--- a/drivers/net/xilinx_emac.h
+++ b/drivers/net/xilinx_emac.h
@@ -26,16 +26,16 @@
*/
typedef struct {
- u32 RegBaseAddress; /* Base address of registers */
- u32 DataBaseAddress; /* Base address of data for FIFOs */
-} XPacketFifoV100b;
+ u32 regbaseaddress; /* Base address of registers */
+ u32 databaseaddress; /* Base address of data for FIFOs */
+} xpacketfifov100b;
typedef struct {
- u32 BaseAddress; /* Base address (of IPIF) */
- u32 IsStarted; /* Device is currently started 0-no, 1-yes */
- XPacketFifoV100b RecvFifo; /* FIFO used to receive frames */
- XPacketFifoV100b SendFifo; /* FIFO used to send frames */
-} XEmac;
+ u32 baseaddress; /* Base address (of IPIF) */
+ u32 isstarted; /* Device is currently started 0-no, 1-yes */
+ xpacketfifov100b recvfifo; /* FIFO used to receive frames */
+ xpacketfifov100b sendfifo; /* FIFO used to send frames */
+} xemac;
#define XIIF_V123B_IISR_OFFSET 32UL /* IP interrupt status register */
#define XIIF_V123B_RESET_MASK 0xAUL
@@ -66,10 +66,14 @@ typedef struct {
#define XEM_PFIFO_OFFSET 0x2000UL
-#define XEM_PFIFO_TXREG_OFFSET (XEM_PFIFO_OFFSET + 0x0) /* Tx registers */
-#define XEM_PFIFO_RXREG_OFFSET (XEM_PFIFO_OFFSET + 0x10) /* Rx registers */
-#define XEM_PFIFO_TXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x100) /* Tx keyhole */
-#define XEM_PFIFO_RXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x200) /* Rx keyhole */
+/* Tx registers */
+#define XEM_PFIFO_TXREG_OFFSET (XEM_PFIFO_OFFSET + 0x0)
+/* Rx registers */
+#define XEM_PFIFO_RXREG_OFFSET (XEM_PFIFO_OFFSET + 0x10)
+/* Tx keyhole */
+#define XEM_PFIFO_TXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x100)
+/* Rx keyhole */
+#define XEM_PFIFO_RXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x200)
/*
@@ -82,46 +86,63 @@ typedef struct {
XEM_EIR_XMIT_SFIFO_EMPTY_MASK |\
XEM_EIR_XMIT_LFIFO_FULL_MASK)
-#define XEM_EIR_XMIT_DONE_MASK 0x00000001UL /* Xmit complete */
-#define XEM_EIR_RECV_DONE_MASK 0x00000002UL /* Recv complete */
-#define XEM_EIR_XMIT_ERROR_MASK 0x00000004UL /* Xmit error */
-#define XEM_EIR_RECV_ERROR_MASK 0x00000008UL /* Recv error */
-#define XEM_EIR_XMIT_SFIFO_EMPTY_MASK 0x00000010UL /* Xmit status fifo empty */
-#define XEM_EIR_RECV_LFIFO_EMPTY_MASK 0x00000020UL /* Recv length fifo empty */
-#define XEM_EIR_XMIT_LFIFO_FULL_MASK 0x00000040UL /* Xmit length fifo full */
-#define XEM_EIR_RECV_LFIFO_OVER_MASK 0x00000080UL /* Recv length fifo
- * overrun */
-#define XEM_EIR_RECV_LFIFO_UNDER_MASK 0x00000100UL /* Recv length fifo
- * underrun */
-#define XEM_EIR_XMIT_SFIFO_OVER_MASK 0x00000200UL /* Xmit status fifo
- * overrun */
-#define XEM_EIR_XMIT_SFIFO_UNDER_MASK 0x00000400UL /* Transmit status fifo
- * underrun */
-#define XEM_EIR_XMIT_LFIFO_OVER_MASK 0x00000800UL /* Transmit length fifo
- * overrun */
-#define XEM_EIR_XMIT_LFIFO_UNDER_MASK 0x00001000UL /* Transmit length fifo
- * underrun */
-#define XEM_EIR_XMIT_PAUSE_MASK 0x00002000UL /* Transmit pause pkt
- * received */
+/* Xmit complete */
+#define XEM_EIR_XMIT_DONE_MASK 0x00000001UL
+/* Recv complete */
+#define XEM_EIR_RECV_DONE_MASK 0x00000002UL
+/* Xmit error */
+#define XEM_EIR_XMIT_ERROR_MASK 0x00000004UL
+/* Recv error */
+#define XEM_EIR_RECV_ERROR_MASK 0x00000008UL
+/* Xmit status fifo empty */
+#define XEM_EIR_XMIT_SFIFO_EMPTY_MASK 0x00000010UL
+/* Recv length fifo empty */
+#define XEM_EIR_RECV_LFIFO_EMPTY_MASK 0x00000020UL
+/* Xmit length fifo full */
+#define XEM_EIR_XMIT_LFIFO_FULL_MASK 0x00000040UL
+/* Recv length fifo overrun */
+#define XEM_EIR_RECV_LFIFO_OVER_MASK 0x00000080UL
+/* Recv length fifo underrun */
+#define XEM_EIR_RECV_LFIFO_UNDER_MASK 0x00000100UL
+/* Xmit status fifo overrun */
+#define XEM_EIR_XMIT_SFIFO_OVER_MASK 0x00000200UL
+/* Transmit status fifo underrun */
+#define XEM_EIR_XMIT_SFIFO_UNDER_MASK 0x00000400UL
+/* Transmit length fifo overrun */
+#define XEM_EIR_XMIT_LFIFO_OVER_MASK 0x00000800UL
+/* Transmit length fifo underrun */
+#define XEM_EIR_XMIT_LFIFO_UNDER_MASK 0x00001000UL
+/* Transmit pause pkt received */
+#define XEM_EIR_XMIT_PAUSE_MASK 0x00002000UL
/*
* EMAC Control Register (ECR)
*/
-#define XEM_ECR_FULL_DUPLEX_MASK 0x80000000UL /* Full duplex mode */
-#define XEM_ECR_XMIT_RESET_MASK 0x40000000UL /* Reset transmitter */
-#define XEM_ECR_XMIT_ENABLE_MASK 0x20000000UL /* Enable transmitter */
-#define XEM_ECR_RECV_RESET_MASK 0x10000000UL /* Reset receiver */
-#define XEM_ECR_RECV_ENABLE_MASK 0x08000000UL /* Enable receiver */
-#define XEM_ECR_PHY_ENABLE_MASK 0x04000000UL /* Enable PHY */
-#define XEM_ECR_XMIT_PAD_ENABLE_MASK 0x02000000UL /* Enable xmit pad
- * insert */
-#define XEM_ECR_XMIT_FCS_ENABLE_MASK 0x01000000UL /* Enable xmit FCS
- * insert */
-#define XEM_ECR_UNICAST_ENABLE_MASK 0x00020000UL /* Enable unicast
- * addr */
-#define XEM_ECR_BROAD_ENABLE_MASK 0x00008000UL /* Enable broadcast
- * addr */
+/* Full duplex mode */
+#define XEM_ECR_FULL_DUPLEX_MASK 0x80000000UL
+/* Reset transmitter */
+#define XEM_ECR_XMIT_RESET_MASK 0x40000000UL
+/* Enable transmitter */
+#define XEM_ECR_XMIT_ENABLE_MASK 0x20000000UL
+/* Reset receiver */
+#define XEM_ECR_RECV_RESET_MASK 0x10000000UL
+/* Enable receiver */
+#define XEM_ECR_RECV_ENABLE_MASK 0x08000000UL
+/* Enable PHY */
+#define XEM_ECR_PHY_ENABLE_MASK 0x04000000UL
+/* Enable xmit pad insert */
+#define XEM_ECR_XMIT_PAD_ENABLE_MASK 0x02000000UL
+/* Enable xmit FCS insert */
+#define XEM_ECR_XMIT_FCS_ENABLE_MASK 0x01000000UL
+/* Enable unicast addr */
+#define XEM_ECR_UNICAST_ENABLE_MASK 0x00020000UL
+/* Enable broadcast addr */
+#define XEM_ECR_BROAD_ENABLE_MASK 0x00008000UL
-/* Transmit Status Register (TSR) */
-#define XEM_TSR_EXCESS_DEFERRAL_MASK 0x80000000UL /* Transmit excess deferral */
-#define XEM_TSR_LATE_COLLISION_MASK 0x01000000UL /* Transmit late collision */
+/*
+ * Transmit Status Register (TSR)
+ */
+/* Transmit excess deferral */
+#define XEM_TSR_EXCESS_DEFERRAL_MASK 0x80000000UL
+/* Transmit late collision */
+#define XEM_TSR_LATE_COLLISION_MASK 0x01000000UL
diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c
index 99e7035..5d8eaa5 100644
--- a/drivers/net/xilinx_emaclite.c
+++ b/drivers/net/xilinx_emaclite.c
@@ -64,76 +64,73 @@
#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 */
-} XEmacLite;
+ 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 */
+} xemaclite;
-static XEmacLite EmacLite;
+static xemaclite emaclite;
-static char etherrxbuff[PKTSIZE_ALIGN]; /* Receive buffer */
+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 };
+static u8 emacaddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
#endif
-void XEmacLite_AlignedRead (u32 * SrcPtr, void *DestPtr, unsigned ByteCount)
+void xemaclite_alignedread (u32 * srcptr, void *destptr, unsigned bytecount)
{
- unsigned i;
- unsigned Length = ByteCount;
- u32 AlignBuffer;
- u32 *To32Ptr;
- u32 *From32Ptr;
- u8 *To8Ptr;
- u8 *From8Ptr;
+ unsigned int i;
+ u32 alignbuffer;
+ u32 *to32ptr;
+ u32 *from32ptr;
+ u8 *to8ptr;
+ u8 *from8ptr;
- From32Ptr = (u32 *) SrcPtr;
+ from32ptr = (u32 *) srcptr;
/* Word aligned buffer, no correction needed. */
- To32Ptr = (u32 *) DestPtr;
- while (Length > 3) {
- *To32Ptr++ = *From32Ptr++;
- Length -= 4;
+ to32ptr = (u32 *) destptr;
+ while (bytecount > 3) {
+ *to32ptr++ = *from32ptr++;
+ bytecount -= 4;
}
- To8Ptr = (u8 *) To32Ptr;
+ to8ptr = (u8 *) to32ptr;
- AlignBuffer = *From32Ptr++;
- From8Ptr = (u8 *) & AlignBuffer;
+ alignbuffer = *from32ptr++;
+ from8ptr = (u8 *) & alignbuffer;
- for (i = 0; i < Length; i++) {
- *To8Ptr++ = *From8Ptr++;
+ for (i = 0; i < bytecount; i++) {
+ *to8ptr++ = *from8ptr++;
}
}
-void XEmacLite_AlignedWrite (void *SrcPtr, u32 * DestPtr, unsigned ByteCount)
+void xemaclite_alignedwrite (void *srcptr, u32 destptr, unsigned bytecount)
{
unsigned i;
- unsigned Length = ByteCount;
- u32 AlignBuffer;
- u32 *To32Ptr;
- u32 *From32Ptr;
- u8 *To8Ptr;
- u8 *From8Ptr;
- To32Ptr = DestPtr;
-
- From32Ptr = (u32 *) SrcPtr;
- while (Length > 3) {
-
- *To32Ptr++ = *From32Ptr++;
- Length -= 4;
+ u32 alignbuffer;
+ u32 *to32ptr = (u32 *) destptr;
+ u32 *from32ptr;
+ u8 *to8ptr;
+ u8 *from8ptr;
+
+ from32ptr = (u32 *) srcptr;
+ while (bytecount > 3) {
+
+ *to32ptr++ = *from32ptr++;
+ bytecount -= 4;
}
- AlignBuffer = 0;
- To8Ptr = (u8 *) & AlignBuffer;
- From8Ptr = (u8 *) From32Ptr;
+ alignbuffer = 0;
+ to8ptr = (u8 *) & alignbuffer;
+ from8ptr = (u8 *) from32ptr;
- for (i = 0; i < Length; i++) {
- *To8Ptr++ = *From8Ptr++;
+ for (i = 0; i < bytecount; i++) {
+ *to8ptr++ = *from8ptr++;
}
- *To32Ptr++ = AlignBuffer;
+ *to32ptr++ = alignbuffer;
}
void eth_halt (void)
@@ -148,37 +145,38 @@ int eth_init (bd_t * bis)
#ifdef DEBUG
puts ("EmacLite Initialization Started\n");
#endif
- memset (&EmacLite, 0, sizeof (XEmacLite));
- EmacLite.BaseAddress = XILINX_EMACLITE_BASEADDR;
+ memset (&emaclite, 0, sizeof (xemaclite));
+ emaclite.baseaddress = XILINX_EMACLITE_BASEADDR;
+
+ if (!getenv("ethaddr")) {
+ memcpy(bis->bi_enetaddr, emacaddr, ENET_ADDR_LENGTH);
+ }
-#ifdef CFG_ENV_IS_NOWHERE
- memcpy (bis->bi_enetaddr, EMACAddr, ENET_ADDR_LENGTH);
-#endif
/*
* TX - TX_PING & TX_PONG initialization
*/
/* Restart PING TX */
- out_be32 (EmacLite.BaseAddress + XEL_TSR_OFFSET, 0);
+ out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, 0);
/* Copy MAC address */
- XEmacLite_AlignedWrite (bis->bi_enetaddr,
- EmacLite.BaseAddress, ENET_ADDR_LENGTH);
+ xemaclite_alignedwrite (bis->bi_enetaddr,
+ emaclite.baseaddress, ENET_ADDR_LENGTH);
/* Set the length */
- out_be32 (EmacLite.BaseAddress + XEL_TPLR_OFFSET, ENET_ADDR_LENGTH);
+ out_be32 (emaclite.baseaddress + XEL_TPLR_OFFSET, ENET_ADDR_LENGTH);
/* Update the MAC address in the EMAC Lite */
- out_be32 (EmacLite.BaseAddress + XEL_TSR_OFFSET, XEL_TSR_PROG_MAC_ADDR);
+ out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, XEL_TSR_PROG_MAC_ADDR);
/* Wait for EMAC Lite to finish with the MAC address update */
- while ((in_be32 (EmacLite.BaseAddress + XEL_TSR_OFFSET) &
+ while ((in_be32 (emaclite.baseaddress + XEL_TSR_OFFSET) &
XEL_TSR_PROG_MAC_ADDR) != 0) ;
#ifdef 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 + 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,
+ out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET + XEL_BUFFER_OFFSET, 0);
+ xemaclite_alignedwrite (bis->bi_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 +
+ while ((in_be32 (emaclite.baseaddress + XEL_TSR_OFFSET +
XEL_BUFFER_OFFSET) & XEL_TSR_PROG_MAC_ADDR) != 0) ;
#endif
@@ -186,9 +184,9 @@ int eth_init (bd_t * bis)
* RX - RX_PING & RX_PONG initialization
*/
/* Write out the value to flush the RX buffer */
- out_be32 (EmacLite.BaseAddress + XEL_RSR_OFFSET, XEL_RSR_RECV_IE_MASK);
+ out_be32 (emaclite.baseaddress + XEL_RSR_OFFSET, XEL_RSR_RECV_IE_MASK);
#ifdef XILINX_EMACLITE_RX_PING_PONG
- out_be32 (EmacLite.BaseAddress + XEL_RSR_OFFSET + XEL_BUFFER_OFFSET,
+ out_be32 (emaclite.baseaddress + XEL_RSR_OFFSET + XEL_BUFFER_OFFSET,
XEL_RSR_RECV_IE_MASK);
#endif
@@ -198,39 +196,39 @@ int eth_init (bd_t * bis)
return 0;
}
-int XEmacLite_TxBufferAvailable (XEmacLite * InstancePtr)
+int xemaclite_txbufferavailable (xemaclite * instanceptr)
{
- u32 Register;
- u32 TxPingBusy;
- u32 TxPongBusy;
+ u32 reg;
+ u32 txpingbusy;
+ u32 txpongbusy;
/*
* Read the other buffer register
* and determine if the other buffer is available
*/
- Register = in_be32 (InstancePtr->BaseAddress +
- InstancePtr->NextTxBufferToUse + 0);
- TxPingBusy = ((Register & XEL_TSR_XMIT_BUSY_MASK) ==
+ reg = in_be32 (instanceptr->baseaddress +
+ instanceptr->nexttxbuffertouse + 0);
+ txpingbusy = ((reg & XEL_TSR_XMIT_BUSY_MASK) ==
XEL_TSR_XMIT_BUSY_MASK);
- Register = in_be32 (InstancePtr->BaseAddress +
- (InstancePtr->NextTxBufferToUse ^ XEL_TSR_OFFSET) + 0);
- TxPongBusy = ((Register & XEL_TSR_XMIT_BUSY_MASK) ==
+ reg = in_be32 (instanceptr->baseaddress +
+ (instanceptr->nexttxbuffertouse ^ XEL_TSR_OFFSET) + 0);
+ txpongbusy = ((reg & XEL_TSR_XMIT_BUSY_MASK) ==
XEL_TSR_XMIT_BUSY_MASK);
- return (!(TxPingBusy && TxPongBusy));
+ return (!(txpingbusy && txpongbusy));
}
int eth_send (volatile void *ptr, int len) {
- unsigned int Register;
- unsigned int BaseAddress;
+ unsigned int reg;
+ unsigned int baseaddress;
unsigned maxtry = 1000;
if (len > ENET_MAX_MTU)
len = ENET_MAX_MTU;
- while (!XEmacLite_TxBufferAvailable (&EmacLite) && maxtry) {
+ while (!xemaclite_txbufferavailable (&emaclite) && maxtry) {
udelay (10);
maxtry--;
}
@@ -238,62 +236,62 @@ int eth_send (volatile void *ptr, int len) {
if (!maxtry) {
printf ("Error: Timeout waiting for ethernet TX buffer\n");
/* Restart PING TX */
- out_be32 (EmacLite.BaseAddress + XEL_TSR_OFFSET, 0);
+ out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, 0);
#ifdef XILINX_EMACLITE_TX_PING_PONG
- out_be32 (EmacLite.BaseAddress + XEL_TSR_OFFSET +
+ out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET +
XEL_BUFFER_OFFSET, 0);
#endif
return 0;
}
/* Determine the expected TX buffer address */
- BaseAddress = (EmacLite.BaseAddress + EmacLite.NextTxBufferToUse);
+ baseaddress = (emaclite.baseaddress + emaclite.nexttxbuffertouse);
/* Determine if the expected buffer address is empty */
- Register = in_be32 (BaseAddress + XEL_TSR_OFFSET);
- if (((Register & XEL_TSR_XMIT_BUSY_MASK) == 0)
- && ((in_be32 ((BaseAddress) + XEL_TSR_OFFSET)
+ reg = in_be32 (baseaddress + XEL_TSR_OFFSET);
+ if (((reg & XEL_TSR_XMIT_BUSY_MASK) == 0)
+ && ((in_be32 ((baseaddress) + XEL_TSR_OFFSET)
& XEL_TSR_XMIT_ACTIVE_MASK) == 0)) {
#ifdef XILINX_EMACLITE_TX_PING_PONG
- EmacLite.NextTxBufferToUse ^= XEL_BUFFER_OFFSET;
+ emaclite.nexttxbuffertouse ^= XEL_BUFFER_OFFSET;
#endif
#ifdef DEBUG
- printf ("Send packet from 0x%x\n", BaseAddress);
+ printf ("Send packet from 0x%x\n", baseaddress);
#endif
/* Write the frame to the buffer */
- XEmacLite_AlignedWrite (ptr, (u32 *) BaseAddress, len);
- out_be32 (BaseAddress + XEL_TPLR_OFFSET,(len &
+ xemaclite_alignedwrite ((void *) ptr, baseaddress, len);
+ out_be32 (baseaddress + XEL_TPLR_OFFSET,(len &
(XEL_TPLR_LENGTH_MASK_HI | XEL_TPLR_LENGTH_MASK_LO)));
- Register = in_be32 (BaseAddress + XEL_TSR_OFFSET);
- Register |= XEL_TSR_XMIT_BUSY_MASK;
- if ((Register & XEL_TSR_XMIT_IE_MASK) != 0) {
- Register |= XEL_TSR_XMIT_ACTIVE_MASK;
+ reg = in_be32 (baseaddress + XEL_TSR_OFFSET);
+ reg |= XEL_TSR_XMIT_BUSY_MASK;
+ if ((reg & XEL_TSR_XMIT_IE_MASK) != 0) {
+ reg |= XEL_TSR_XMIT_ACTIVE_MASK;
}
- out_be32 (BaseAddress + XEL_TSR_OFFSET, Register);
+ out_be32 (baseaddress + XEL_TSR_OFFSET, reg);
return 1;
}
#ifdef XILINX_EMACLITE_TX_PING_PONG
/* Switch to second buffer */
- BaseAddress ^= XEL_BUFFER_OFFSET;
+ baseaddress ^= XEL_BUFFER_OFFSET;
/* Determine if the expected buffer address is empty */
- Register = in_be32 (BaseAddress + XEL_TSR_OFFSET);
- if (((Register & XEL_TSR_XMIT_BUSY_MASK) == 0)
- && ((in_be32 ((BaseAddress) + XEL_TSR_OFFSET)
+ reg = in_be32 (baseaddress + XEL_TSR_OFFSET);
+ 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);
+ printf ("Send packet from 0x%x\n", baseaddress);
#endif
/* Write the frame to the buffer */
- XEmacLite_AlignedWrite (ptr, (u32 *) BaseAddress, len);
- out_be32 (BaseAddress + XEL_TPLR_OFFSET,(len &
+ xemaclite_alignedwrite ((void *) ptr, baseaddress, len);
+ out_be32 (baseaddress + XEL_TPLR_OFFSET,(len &
(XEL_TPLR_LENGTH_MASK_HI | XEL_TPLR_LENGTH_MASK_LO)));
- Register = in_be32 (BaseAddress + XEL_TSR_OFFSET);
- Register |= XEL_TSR_XMIT_BUSY_MASK;
- if ((Register & XEL_TSR_XMIT_IE_MASK) != 0) {
- Register |= XEL_TSR_XMIT_ACTIVE_MASK;
+ reg = in_be32 (baseaddress + XEL_TSR_OFFSET);
+ reg |= XEL_TSR_XMIT_BUSY_MASK;
+ if ((reg & XEL_TSR_XMIT_IE_MASK) != 0) {
+ reg |= XEL_TSR_XMIT_ACTIVE_MASK;
}
- out_be32 (BaseAddress + XEL_TSR_OFFSET, Register);
+ out_be32 (baseaddress + XEL_TSR_OFFSET, reg);
return 1;
}
#endif
@@ -303,50 +301,50 @@ int eth_send (volatile void *ptr, int len) {
int eth_rx (void)
{
- unsigned int Length;
- unsigned int Register;
- unsigned int BaseAddress;
+ unsigned int length;
+ unsigned int reg;
+ unsigned int baseaddress;
- BaseAddress = EmacLite.BaseAddress + EmacLite.NextRxBufferToUse;
- Register = in_be32 (BaseAddress + XEL_RSR_OFFSET);
+ baseaddress = emaclite.baseaddress + emaclite.nextrxbuffertouse;
+ reg = in_be32 (baseaddress + XEL_RSR_OFFSET);
#ifdef DEBUG
- printf ("Testing data at address 0x%x\n", BaseAddress);
+ printf ("Testing data at address 0x%x\n", baseaddress);
#endif
- if ((Register & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
+ if ((reg & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
#ifdef XILINX_EMACLITE_RX_PING_PONG
- EmacLite.NextRxBufferToUse ^= XEL_BUFFER_OFFSET;
+ 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);
+ printf ("No data was available - address 0x%x\n", baseaddress);
#endif
return 0;
#else
- BaseAddress ^= XEL_BUFFER_OFFSET;
- Register = in_be32 (BaseAddress + XEL_RSR_OFFSET);
- if ((Register & XEL_RSR_RECV_DONE_MASK) !=
+ 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",
- BaseAddress);
+ baseaddress);
#endif
return 0;
}
#endif
}
/* Get the length of the frame that arrived */
- switch(((in_be32(BaseAddress + XEL_RXBUFF_OFFSET + 0xC)) &
+ switch(((in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0xC)) &
0xFFFF0000 ) >> 16) {
case 0x806:
- Length = 42 + 20; /* FIXME size of ARP */
+ length = 42 + 20; /* FIXME size of ARP */
#ifdef DEBUG
puts ("ARP Packet\n");
#endif
break;
case 0x800:
- Length = 14 + 14 +
- (((in_be32(BaseAddress + XEL_RXBUFF_OFFSET + 0x10)) &
+ length = 14 + 14 +
+ (((in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0x10)) &
0xFFFF0000) >> 16); /* FIXME size of IP packet */
#ifdef DEBUG
puts("IP Packet\n");
@@ -356,22 +354,22 @@ int eth_rx (void)
#ifdef DEBUG
puts("Other Packet\n");
#endif
- Length = ENET_MAX_MTU;
+ length = ENET_MAX_MTU;
break;
}
- XEmacLite_AlignedRead ((BaseAddress + XEL_RXBUFF_OFFSET),
- etherrxbuff, Length);
+ xemaclite_alignedread ((u32 *) (baseaddress + XEL_RXBUFF_OFFSET),
+ etherrxbuff, length);
/* Acknowledge the frame */
- Register = in_be32 (BaseAddress + XEL_RSR_OFFSET);
- Register &= ~XEL_RSR_RECV_DONE_MASK;
- out_be32 (BaseAddress + XEL_RSR_OFFSET, Register);
+ reg = in_be32 (baseaddress + XEL_RSR_OFFSET);
+ 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);
+ printf ("Packet receive from 0x%x, length %dB\n", baseaddress, length);
#endif
- NetReceive ((uchar *) etherrxbuff, Length);
+ NetReceive ((uchar *) etherrxbuff, length);
return 1;
}
generated by cgit v1.1 at 2024-12-15 09:42:53 +0000