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Diffstat (limited to 'board/MAI/AmigaOneG3SE/enet.c')
-rw-r--r--board/MAI/AmigaOneG3SE/enet.c601
1 files changed, 291 insertions, 310 deletions
diff --git a/board/MAI/AmigaOneG3SE/enet.c b/board/MAI/AmigaOneG3SE/enet.c
index ad2bcde..5a90cc5 100644
--- a/board/MAI/AmigaOneG3SE/enet.c
+++ b/board/MAI/AmigaOneG3SE/enet.c
@@ -90,8 +90,8 @@
#define DMADone (1<<8)
#define DownComplete (1<<9)
#define UpComplete (1<<10)
-#define DMAInProgress (1<<11) /* DMA controller is still busy.*/
-#define CmdInProgress (1<<12) /* EL3_CMD is still busy.*/
+#define DMAInProgress (1<<11) /* DMA controller is still busy.*/
+#define CmdInProgress (1<<12) /* EL3_CMD is still busy.*/
/* Polling Registers */
@@ -100,17 +100,17 @@
/* Register window 0 offets */
-#define Wn0EepromCmd 10 /* Window 0: EEPROM command register. */
-#define Wn0EepromData 12 /* Window 0: EEPROM results register. */
-#define IntrStatus 0x0E /* Valid in all windows. */
+#define Wn0EepromCmd 10 /* Window 0: EEPROM command register. */
+#define Wn0EepromData 12 /* Window 0: EEPROM results register. */
+#define IntrStatus 0x0E /* Valid in all windows. */
/* Register window 0 EEPROM bits */
#define EEPROM_Read 0x80
#define EEPROM_WRITE 0x40
#define EEPROM_ERASE 0xC0
-#define EEPROM_EWENB 0x30 /* Enable erasing/writing for 10 msec. */
-#define EEPROM_EWDIS 0x00 /* Disable EWENB before 10 msec timeout. */
+#define EEPROM_EWENB 0x30 /* Enable erasing/writing for 10 msec. */
+#define EEPROM_EWDIS 0x00 /* Disable EWENB before 10 msec timeout. */
/* EEPROM locations. */
@@ -135,7 +135,7 @@
#define RxStatus 0x18
#define Timer 0x1A
#define TxStatus 0x1B
-#define TxFree 0x1C /* Remaining free bytes in Tx buffer. */
+#define TxFree 0x1C /* Remaining free bytes in Tx buffer. */
/* Register Window 2 */
@@ -143,23 +143,23 @@
/* Register Window 3: MAC/config bits */
-#define Wn3_Config 0 /* Internal Configuration */
+#define Wn3_Config 0 /* Internal Configuration */
#define Wn3_MAC_Ctrl 6
#define Wn3_Options 8
#define BFEXT(value, offset, bitcount) \
((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1))
-#define BFINS(lhs, rhs, offset, bitcount) \
+#define BFINS(lhs, rhs, offset, bitcount) \
(((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \
(((rhs) & ((1 << (bitcount)) - 1)) << (offset)))
-#define RAM_SIZE(v) BFEXT(v, 0, 3)
+#define RAM_SIZE(v) BFEXT(v, 0, 3)
#define RAM_WIDTH(v) BFEXT(v, 3, 1)
-#define RAM_SPEED(v) BFEXT(v, 4, 2)
-#define ROM_SIZE(v) BFEXT(v, 6, 2)
+#define RAM_SPEED(v) BFEXT(v, 4, 2)
+#define ROM_SIZE(v) BFEXT(v, 6, 2)
#define RAM_SPLIT(v) BFEXT(v, 16, 2)
-#define XCVR(v) BFEXT(v, 20, 4)
+#define XCVR(v) BFEXT(v, 20, 4)
#define AUTOSELECT(v) BFEXT(v, 24, 1)
/* Register Window 4: Xcvr/media bits */
@@ -186,20 +186,20 @@
#define DownListPtr 0x24
#define FragAddr 0x28
#define FragLen 0x2c
-#define TxFreeThreshold 0x2f
+#define TxFreeThreshold 0x2f
#define UpPktStatus 0x30
-#define UpListPtr 0x38
+#define UpListPtr 0x38
/* The Rx and Tx descriptor lists. */
-#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
-#define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
+#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
+#define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
struct rx_desc_3com {
- u32 next; /* Last entry points to 0 */
- u32 status; /* FSH -> Frame Start Header */
- u32 addr; /* Up to 63 addr/len pairs possible */
- u32 length; /* Set LAST_FRAG to indicate last pair */
+ u32 next; /* Last entry points to 0 */
+ u32 status; /* FSH -> Frame Start Header */
+ u32 addr; /* Up to 63 addr/len pairs possible */
+ u32 length; /* Set LAST_FRAG to indicate last pair */
};
/* Values for the Rx status entry. */
@@ -214,8 +214,8 @@ struct rx_desc_3com {
#define UDPChksumValid (1<<31)
struct tx_desc_3com {
- u32 next; /* Last entry points to 0 */
- u32 status; /* bits 0:12 length, others see below */
+ u32 next; /* Last entry points to 0 */
+ u32 status; /* bits 0:12 length, others see below */
u32 addr;
u32 length;
};
@@ -227,7 +227,7 @@ struct tx_desc_3com {
#define AddIPChksum 0x02000000
#define AddTCPChksum 0x04000000
#define AddUDPChksum 0x08000000
-#define TxIntrUploaded 0x80000000 /* IRQ when in FIFO, but maybe not sent. */
+#define TxIntrUploaded 0x80000000 /* IRQ when in FIFO, but maybe not sent. */
/* XCVR Types */
@@ -240,19 +240,19 @@ struct tx_desc_3com {
#define XCVR_MII 6
#define XCVR_NWAY 8
#define XCVR_ExtMII 9
-#define XCVR_Default 10 /* I don't think this is correct -> should have been 0x10 if Auto Negotiate */
+#define XCVR_Default 10 /* I don't think this is correct -> should have been 0x10 if Auto Negotiate */
-struct descriptor { /* A generic descriptor. */
- u32 next; /* Last entry points to 0 */
- u32 status; /* FSH -> Frame Start Header */
- u32 addr; /* Up to 63 addr/len pairs possible */
- u32 length; /* Set LAST_FRAG to indicate last pair */
+struct descriptor { /* A generic descriptor. */
+ u32 next; /* Last entry points to 0 */
+ u32 status; /* FSH -> Frame Start Header */
+ u32 addr; /* Up to 63 addr/len pairs possible */
+ u32 length; /* Set LAST_FRAG to indicate last pair */
};
/* Misc. definitions */
-#define NUM_RX_DESC PKTBUFSRX * 10
-#define NUM_TX_DESC 1 /* Number of TX descriptors */
+#define NUM_RX_DESC PKTBUFSRX * 10
+#define NUM_TX_DESC 1 /* Number of TX descriptors */
#define TOUT_LOOP 1000000
@@ -266,17 +266,17 @@ struct descriptor { /* A generic descriptor. */
#undef ETH_DEBUG
#ifdef ETH_DEBUG
-#define PRINTF(fmt,args...) printf (fmt ,##args)
+#define PRINTF(fmt,args...) printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif
-static struct rx_desc_3com *rx_ring; /* RX descriptor ring */
-static struct tx_desc_3com *tx_ring; /* TX descriptor ring */
-static u8 rx_buffer[NUM_RX_DESC][PKTSIZE_ALIGN]; /* storage for the incoming messages */
-static int rx_next = 0; /* RX descriptor ring pointer */
-static int tx_next = 0; /* TX descriptor ring pointer */
+static struct rx_desc_3com *rx_ring; /* RX descriptor ring */
+static struct tx_desc_3com *tx_ring; /* TX descriptor ring */
+static u8 rx_buffer[NUM_RX_DESC][PKTSIZE_ALIGN];/* storage for the incoming messages */
+static int rx_next = 0; /* RX descriptor ring pointer */
+static int tx_next = 0; /* TX descriptor ring pointer */
static int tx_threshold;
static void init_rx_ring(struct eth_device* dev);
@@ -369,171 +369,163 @@ static int issue_and_wait(struct eth_device* dev, int command)
return 0;
}
-/* Determine network media type and set up 3com accordingly */
+/* Determine network media type and set up 3com accordingly */
/* I think I'm going to start with something known first like 10baseT */
-static int auto_negotiate(struct eth_device* dev)
+static int auto_negotiate (struct eth_device *dev)
{
- int i;
+ int i;
- EL3WINDOW(dev, 1);
+ EL3WINDOW (dev, 1);
- /* Wait for Auto negotiation to complete */
- for (i = 0; i <= 1000; i++)
- {
- if (ETH_INW(dev, 2) & 0x04)
- break;
- udelay(100);
+ /* Wait for Auto negotiation to complete */
+ for (i = 0; i <= 1000; i++) {
+ if (ETH_INW (dev, 2) & 0x04)
+ break;
+ udelay (100);
- if (i == 1000)
- {
- PRINTF("Error: Auto negotiation failed\n");
- return 0;
+ if (i == 1000) {
+ PRINTF ("Error: Auto negotiation failed\n");
+ return 0;
+ }
}
- }
- return 1;
+ return 1;
}
-void eth_interrupt(struct eth_device *dev)
+void eth_interrupt (struct eth_device *dev)
{
- u16 status = ETH_STATUS(dev);
+ u16 status = ETH_STATUS (dev);
- printf("eth0: status = 0x%04x\n", status);
+ printf ("eth0: status = 0x%04x\n", status);
- if (!(status & IntLatch))
- return;
+ if (!(status & IntLatch))
+ return;
+
+ if (status & (1 << 6)) {
+ ETH_CMD (dev, AckIntr | (1 << 6));
+ printf ("Acknowledged Interrupt command\n");
+ }
+
+ if (status & DownComplete) {
+ ETH_CMD (dev, AckIntr | DownComplete);
+ printf ("Acknowledged DownComplete\n");
+ }
+
+ if (status & UpComplete) {
+ ETH_CMD (dev, AckIntr | UpComplete);
+ printf ("Acknowledged UpComplete\n");
+ }
- if (status & (1<<6))
- {
- ETH_CMD(dev, AckIntr | (1<<6));
- printf("Acknowledged Interrupt command\n");
- }
-
- if (status & DownComplete)
- {
- ETH_CMD(dev, AckIntr | DownComplete);
- printf("Acknowledged DownComplete\n");
- }
-
- if (status & UpComplete)
- {
- ETH_CMD(dev, AckIntr | UpComplete);
- printf("Acknowledged UpComplete\n");
- }
-
- ETH_CMD(dev, AckIntr | IntLatch);
- printf("Acknowledged IntLatch\n");
+ ETH_CMD (dev, AckIntr | IntLatch);
+ printf ("Acknowledged IntLatch\n");
}
-int eth_3com_initialize(bd_t *bis)
+int eth_3com_initialize (bd_t * bis)
{
u32 eth_iobase = 0, status;
int card_number = 0, ret;
- struct eth_device* dev;
+ struct eth_device *dev;
pci_dev_t devno;
char *s;
- s = getenv("3com_base");
+ s = getenv ("3com_base");
/* Find ethernet controller on the PCI bus */
- if ((devno = pci_find_device(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C905C, 0)) < 0)
- {
- PRINTF("Error: Cannot find the ethernet device on the PCI bus\n");
+ if ((devno =
+ pci_find_device (PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C905C,
+ 0)) < 0) {
+ PRINTF ("Error: Cannot find the ethernet device on the PCI bus\n");
goto Done;
}
- if (s)
- {
- unsigned long base = atoi(s);
- pci_write_config_dword(devno, PCI_BASE_ADDRESS_0, base | 0x01);
+ if (s) {
+ unsigned long base = atoi (s);
+
+ pci_write_config_dword (devno, PCI_BASE_ADDRESS_0,
+ base | 0x01);
}
- ret = pci_read_config_dword(devno, PCI_BASE_ADDRESS_0, &eth_iobase);
+ ret = pci_read_config_dword (devno, PCI_BASE_ADDRESS_0, &eth_iobase);
eth_iobase &= ~0xf;
- PRINTF("eth: 3Com Found at Address: 0x%x\n", eth_iobase);
+ PRINTF ("eth: 3Com Found at Address: 0x%x\n", eth_iobase);
- pci_write_config_dword(devno, PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+ pci_write_config_dword (devno, PCI_COMMAND,
+ PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER);
- /* Check if I/O accesses and Bus Mastering are enabled */
+ /* Check if I/O accesses and Bus Mastering are enabled */
- ret = pci_read_config_dword(devno, PCI_COMMAND, &status);
+ ret = pci_read_config_dword (devno, PCI_COMMAND, &status);
- if (!(status & PCI_COMMAND_IO))
- {
- printf("Error: Cannot enable IO access.\n");
+ if (!(status & PCI_COMMAND_IO)) {
+ printf ("Error: Cannot enable IO access.\n");
goto Done;
}
- if (!(status & PCI_COMMAND_MEMORY))
- {
- printf("Error: Cannot enable MEMORY access.\n");
+ if (!(status & PCI_COMMAND_MEMORY)) {
+ printf ("Error: Cannot enable MEMORY access.\n");
goto Done;
}
- if (!(status & PCI_COMMAND_MASTER))
- {
- printf("Error: Cannot enable Bus Mastering.\n");
+ if (!(status & PCI_COMMAND_MASTER)) {
+ printf ("Error: Cannot enable Bus Mastering.\n");
goto Done;
}
- dev = (struct eth_device*) malloc(sizeof(*dev)); /*struct eth_device)); */
+ dev = (struct eth_device *) malloc (sizeof (*dev)); /*struct eth_device)); */
- sprintf(dev->name, "3Com 3c920c#%d", card_number);
+ sprintf (dev->name, "3Com 3c920c#%d", card_number);
dev->iobase = eth_iobase;
- dev->priv = (void*) devno;
- dev->init = eth_3com_init;
- dev->halt = eth_3com_halt;
- dev->send = eth_3com_send;
- dev->recv = eth_3com_recv;
+ dev->priv = (void *) devno;
+ dev->init = eth_3com_init;
+ dev->halt = eth_3com_halt;
+ dev->send = eth_3com_send;
+ dev->recv = eth_3com_recv;
- eth_register(dev);
+ eth_register (dev);
-/* { */
-/* char interrupt; */
-/* devno = pci_find_device(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C905C, 0); */
-/* pci_read_config_byte(devno, PCI_INTERRUPT_LINE, &interrupt); */
+/* { */
+/* char interrupt; */
+/* devno = pci_find_device(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C905C, 0); */
+/* pci_read_config_byte(devno, PCI_INTERRUPT_LINE, &interrupt); */
-/* printf("Installing eth0 interrupt handler to %d\n", interrupt); */
-/* irq_install_handler(interrupt, eth_interrupt, dev); */
-/* } */
+/* printf("Installing eth0 interrupt handler to %d\n", interrupt); */
+/* irq_install_handler(interrupt, eth_interrupt, dev); */
+/* } */
card_number++;
/* Set the latency timer for value */
- s = getenv("3com_latency");
- if (s)
- {
- ret = pci_write_config_byte(devno, PCI_LATENCY_TIMER, (unsigned char)atoi(s));
- }
- else ret = pci_write_config_byte(devno, PCI_LATENCY_TIMER, 0x0a);
+ s = getenv ("3com_latency");
+ if (s) {
+ ret = pci_write_config_byte (devno, PCI_LATENCY_TIMER,
+ (unsigned char) atoi (s));
+ } else
+ ret = pci_write_config_byte (devno, PCI_LATENCY_TIMER, 0x0a);
- read_hw_addr(dev, bis); /* get the MAC address from Window 2*/
+ read_hw_addr (dev, bis); /* get the MAC address from Window 2 */
/* Reset the ethernet controller */
PRINTF ("Issuing reset command....\n");
- if (!issue_and_wait(dev, TotalReset))
- {
- printf("Error: Cannot reset ethernet controller.\n");
+ if (!issue_and_wait (dev, TotalReset)) {
+ printf ("Error: Cannot reset ethernet controller.\n");
goto Done;
- }
- else
+ } else
PRINTF ("Ethernet controller reset.\n");
/* allocate memory for rx and tx rings */
- if(!(rx_ring = memalign(sizeof(struct rx_desc_3com) * NUM_RX_DESC, 16)))
- {
+ if (!(rx_ring = memalign (sizeof (struct rx_desc_3com) * NUM_RX_DESC, 16))) {
PRINTF ("Cannot allocate memory for RX_RING.....\n");
goto Done;
}
- if (!(tx_ring = memalign(sizeof(struct tx_desc_3com) * NUM_TX_DESC, 16)))
- {
+ if (!(tx_ring = memalign (sizeof (struct tx_desc_3com) * NUM_TX_DESC, 16))) {
PRINTF ("Cannot allocate memory for TX_RING.....\n");
goto Done;
}
@@ -543,219 +535,208 @@ Done:
}
-static int eth_3com_init(struct eth_device* dev, bd_t *bis)
+static int eth_3com_init (struct eth_device *dev, bd_t * bis)
{
int i, status = 0;
int tx_cur, loop;
u16 status_enable, intr_enable;
struct descriptor *ias_cmd;
- /* Determine what type of network the machine is connected to */
- /* presently drops the connect to 10Mbps */
+ /* Determine what type of network the machine is connected to */
+ /* presently drops the connect to 10Mbps */
- if (!auto_negotiate(dev))
- {
- printf("Error: Cannot determine network media.\n");
+ if (!auto_negotiate (dev)) {
+ printf ("Error: Cannot determine network media.\n");
goto Done;
}
- issue_and_wait(dev, TxReset);
- issue_and_wait(dev, RxReset|0x04);
+ issue_and_wait (dev, TxReset);
+ issue_and_wait (dev, RxReset | 0x04);
/* Switch to register set 7 for normal use. */
- EL3WINDOW(dev, 7);
+ EL3WINDOW (dev, 7);
/* Initialize Rx and Tx rings */
- init_rx_ring(dev);
- purge_tx_ring(dev);
+ init_rx_ring (dev);
+ purge_tx_ring (dev);
- ETH_CMD(dev, SetRxFilter | RxStation | RxBroadcast | RxProm);
+ ETH_CMD (dev, SetRxFilter | RxStation | RxBroadcast | RxProm);
- issue_and_wait(dev,SetTxStart|0x07ff);
+ issue_and_wait (dev, SetTxStart | 0x07ff);
/* Below sets which indication bits to be seen. */
- status_enable = SetStatusEnb | HostError | DownComplete | UpComplete | (1<<6);
- ETH_CMD(dev, status_enable);
+ status_enable =
+ SetStatusEnb | HostError | DownComplete | UpComplete | (1 <<
+ 6);
+ ETH_CMD (dev, status_enable);
/* Below sets no bits are to cause an interrupt since this is just polling */
- intr_enable = SetIntrEnb;
+ intr_enable = SetIntrEnb;
/* intr_enable = SetIntrEnb | (1<<9) | (1<<10) | (1<<6); */
- ETH_CMD(dev, intr_enable);
- ETH_OUTB(dev, 127, UpPoll);
+ ETH_CMD (dev, intr_enable);
+ ETH_OUTB (dev, 127, UpPoll);
/* Ack all pending events, and set active indicator mask */
- ETH_CMD(dev, AckIntr | IntLatch | TxAvailable | RxEarly | IntReq);
- ETH_CMD(dev, intr_enable);
+ ETH_CMD (dev, AckIntr | IntLatch | TxAvailable | RxEarly | IntReq);
+ ETH_CMD (dev, intr_enable);
/* Tell the adapter where the RX ring is located */
- issue_and_wait(dev,UpStall); /* Stall and set the UplistPtr */
- ETH_OUTL(dev, (u32)&rx_ring[rx_next], UpListPtr);
- ETH_CMD(dev, RxEnable); /* Enable the receiver. */
- issue_and_wait(dev,UpUnstall);
+ issue_and_wait (dev, UpStall); /* Stall and set the UplistPtr */
+ ETH_OUTL (dev, (u32) & rx_ring[rx_next], UpListPtr);
+ ETH_CMD (dev, RxEnable); /* Enable the receiver. */
+ issue_and_wait (dev, UpUnstall);
/* Send the Individual Address Setup frame */
- tx_cur = tx_next;
- tx_next = ((tx_next+1) % NUM_TX_DESC);
+ tx_cur = tx_next;
+ tx_next = ((tx_next + 1) % NUM_TX_DESC);
- ias_cmd = (struct descriptor *)&tx_ring[tx_cur];
- ias_cmd->status = cpu_to_le32(1<<31); /* set DnIndicate bit. */
- ias_cmd->next = 0;
- ias_cmd->addr = cpu_to_le32((u32)&bis->bi_enetaddr[0]);
- ias_cmd->length = cpu_to_le32(6 | LAST_FRAG);
+ ias_cmd = (struct descriptor *) &tx_ring[tx_cur];
+ ias_cmd->status = cpu_to_le32 (1 << 31); /* set DnIndicate bit. */
+ ias_cmd->next = 0;
+ ias_cmd->addr = cpu_to_le32 ((u32) & bis->bi_enetaddr[0]);
+ ias_cmd->length = cpu_to_le32 (6 | LAST_FRAG);
/* Tell the adapter where the TX ring is located */
- ETH_CMD(dev, TxEnable); /* Enable transmitter. */
- issue_and_wait(dev, DownStall); /* Stall and set the DownListPtr. */
- ETH_OUTL(dev, (u32)&tx_ring[tx_cur], DownListPtr);
- issue_and_wait(dev, DownUnstall);
- for (i=0; !(ETH_STATUS(dev) & DownComplete); i++)
- {
- if (i >= TOUT_LOOP)
- {
- PRINTF("TX Ring status (Init): 0x%4x\n", le32_to_cpu(tx_ring[tx_cur].status));
- PRINTF("ETH_STATUS: 0x%x\n", ETH_STATUS(dev));
+ ETH_CMD (dev, TxEnable); /* Enable transmitter. */
+ issue_and_wait (dev, DownStall); /* Stall and set the DownListPtr. */
+ ETH_OUTL (dev, (u32) & tx_ring[tx_cur], DownListPtr);
+ issue_and_wait (dev, DownUnstall);
+ for (i = 0; !(ETH_STATUS (dev) & DownComplete); i++) {
+ if (i >= TOUT_LOOP) {
+ PRINTF ("TX Ring status (Init): 0x%4x\n",
+ le32_to_cpu (tx_ring[tx_cur].status));
+ PRINTF ("ETH_STATUS: 0x%x\n", ETH_STATUS (dev));
goto Done;
}
}
- if (ETH_STATUS(dev) & DownComplete) /* If DownLoad Complete ACK the bit */
- {
- ETH_CMD(dev, AckIntr | DownComplete); /* acknowledge the indication bit */
- issue_and_wait(dev, DownStall); /* stall and clear DownListPtr */
- ETH_OUTL(dev, 0, DownListPtr);
- issue_and_wait(dev, DownUnstall);
+ if (ETH_STATUS (dev) & DownComplete) { /* If DownLoad Complete ACK the bit */
+ ETH_CMD (dev, AckIntr | DownComplete); /* acknowledge the indication bit */
+ issue_and_wait (dev, DownStall); /* stall and clear DownListPtr */
+ ETH_OUTL (dev, 0, DownListPtr);
+ issue_and_wait (dev, DownUnstall);
}
status = 1;
-
Done:
return status;
}
-int eth_3com_send(struct eth_device* dev, volatile void *packet, int length)
+int eth_3com_send (struct eth_device *dev, volatile void *packet, int length)
{
int i, status = 0;
int tx_cur;
- if (length <= 0)
- {
- PRINTF("eth: bad packet size: %d\n", length);
+ if (length <= 0) {
+ PRINTF ("eth: bad packet size: %d\n", length);
goto Done;
}
- tx_cur = tx_next;
- tx_next = (tx_next+1) % NUM_TX_DESC;
+ tx_cur = tx_next;
+ tx_next = (tx_next + 1) % NUM_TX_DESC;
- tx_ring[tx_cur].status = cpu_to_le32(1<<31); /* set DnIndicate bit */
- tx_ring[tx_cur].next = 0;
- tx_ring[tx_cur].addr = cpu_to_le32(((u32) packet));
- tx_ring[tx_cur].length = cpu_to_le32(length | LAST_FRAG);
+ tx_ring[tx_cur].status = cpu_to_le32 (1 << 31); /* set DnIndicate bit */
+ tx_ring[tx_cur].next = 0;
+ tx_ring[tx_cur].addr = cpu_to_le32 (((u32) packet));
+ tx_ring[tx_cur].length = cpu_to_le32 (length | LAST_FRAG);
/* Send the packet */
- issue_and_wait(dev, DownStall); /* stall and set the DownListPtr */
- ETH_OUTL(dev, (u32) &tx_ring[tx_cur], DownListPtr);
- issue_and_wait(dev, DownUnstall);
+ issue_and_wait (dev, DownStall); /* stall and set the DownListPtr */
+ ETH_OUTL (dev, (u32) & tx_ring[tx_cur], DownListPtr);
+ issue_and_wait (dev, DownUnstall);
- for (i=0; !(ETH_STATUS(dev) & DownComplete); i++)
- {
- if (i >= TOUT_LOOP)
- {
- PRINTF("TX Ring status (send): 0x%4x\n", le32_to_cpu(tx_ring[tx_cur].status));
+ for (i = 0; !(ETH_STATUS (dev) & DownComplete); i++) {
+ if (i >= TOUT_LOOP) {
+ PRINTF ("TX Ring status (send): 0x%4x\n",
+ le32_to_cpu (tx_ring[tx_cur].status));
goto Done;
}
}
- if (ETH_STATUS(dev) & DownComplete) /* If DownLoad Complete ACK the bit */
- {
- ETH_CMD(dev, AckIntr | DownComplete); /* acknowledge the indication bit */
- issue_and_wait(dev, DownStall); /* stall and clear DownListPtr */
- ETH_OUTL(dev, 0, DownListPtr);
- issue_and_wait(dev, DownUnstall);
+ if (ETH_STATUS (dev) & DownComplete) { /* If DownLoad Complete ACK the bit */
+ ETH_CMD (dev, AckIntr | DownComplete); /* acknowledge the indication bit */
+ issue_and_wait (dev, DownStall); /* stall and clear DownListPtr */
+ ETH_OUTL (dev, 0, DownListPtr);
+ issue_and_wait (dev, DownUnstall);
}
- status=1;
- Done:
+ status = 1;
+Done:
return status;
}
-void PrintPacket (uchar *packet, int length)
+void PrintPacket (uchar * packet, int length)
{
-int loop;
-uchar *ptr;
+ int loop;
+ uchar *ptr;
printf ("Printing packet of length %x.\n\n", length);
ptr = packet;
- for (loop = 1; loop <= length; loop++)
- {
+ for (loop = 1; loop <= length; loop++) {
printf ("%2x ", *ptr++);
- if ((loop % 40)== 0)
+ if ((loop % 40) == 0)
printf ("\n");
}
}
-int eth_3com_recv(struct eth_device* dev)
+int eth_3com_recv (struct eth_device *dev)
{
u16 stat = 0;
u32 status;
int rx_prev, length = 0;
- while (!(ETH_STATUS(dev) & UpComplete)) /* wait on receipt of packet */
+ while (!(ETH_STATUS (dev) & UpComplete)) /* wait on receipt of packet */
;
- status = le32_to_cpu(rx_ring[rx_next].status); /* packet status */
+ status = le32_to_cpu (rx_ring[rx_next].status); /* packet status */
- while (status & (1<<15))
- {
+ while (status & (1 << 15)) {
/* A packet has been received */
- if (status & (1<<15))
- {
+ if (status & (1 << 15)) {
/* A valid frame received */
- length = le32_to_cpu(rx_ring[rx_next].status) & 0x1fff; /* length is in bits 0 - 12 */
+ length = le32_to_cpu (rx_ring[rx_next].status) & 0x1fff; /* length is in bits 0 - 12 */
/* Pass the packet up to the protocol layers */
- NetReceive((uchar *)le32_to_cpu(rx_ring[rx_next].addr), length);
- rx_ring[rx_next].status = 0; /* clear the status word */
- ETH_CMD(dev, AckIntr | UpComplete);
- issue_and_wait(dev, UpUnstall);
- }
- else
- if (stat & HostError)
- {
+ NetReceive ((uchar *)
+ le32_to_cpu (rx_ring[rx_next].addr),
+ length);
+ rx_ring[rx_next].status = 0; /* clear the status word */
+ ETH_CMD (dev, AckIntr | UpComplete);
+ issue_and_wait (dev, UpUnstall);
+ } else if (stat & HostError) {
/* There was an error */
- printf("Rx error status: 0x%4x\n", stat);
- init_rx_ring(dev);
+ printf ("Rx error status: 0x%4x\n", stat);
+ init_rx_ring (dev);
goto Done;
}
rx_prev = rx_next;
rx_next = (rx_next + 1) % NUM_RX_DESC;
- stat = ETH_STATUS(dev); /* register status */
- status = le32_to_cpu(rx_ring[rx_next].status); /* packet status */
+ stat = ETH_STATUS (dev); /* register status */
+ status = le32_to_cpu (rx_ring[rx_next].status); /* packet status */
}
-
Done:
return length;
}
-void eth_3com_halt(struct eth_device* dev)
+void eth_3com_halt (struct eth_device *dev)
{
- if (!(dev->iobase))
- {
+ if (!(dev->iobase)) {
goto Done;
}
- issue_and_wait(dev, DownStall); /* shut down transmit and receive */
- issue_and_wait(dev, UpStall);
- issue_and_wait(dev, RxDisable);
- issue_and_wait(dev, TxDisable);
+ issue_and_wait (dev, DownStall); /* shut down transmit and receive */
+ issue_and_wait (dev, UpStall);
+ issue_and_wait (dev, RxDisable);
+ issue_and_wait (dev, TxDisable);
/* free(tx_ring); /###* release memory allocated to the DPD and UPD rings */
/* free(rx_ring); */
@@ -764,41 +745,41 @@ Done:
return;
}
-static void init_rx_ring(struct eth_device* dev)
+static void init_rx_ring (struct eth_device *dev)
{
int i;
- PRINTF("Initializing rx_ring. rx_buffer = %p\n", rx_buffer);
- issue_and_wait(dev, UpStall);
+ PRINTF ("Initializing rx_ring. rx_buffer = %p\n", rx_buffer);
+ issue_and_wait (dev, UpStall);
- for (i = 0; i < NUM_RX_DESC; i++)
- {
- rx_ring[i].next = cpu_to_le32(((u32) &rx_ring[(i+1) % NUM_RX_DESC]));
- rx_ring[i].status = 0;
- rx_ring[i].addr = cpu_to_le32(((u32) &rx_buffer[i][0]));
- rx_ring[i].length = cpu_to_le32(PKTSIZE_ALIGN | LAST_FRAG);
+ for (i = 0; i < NUM_RX_DESC; i++) {
+ rx_ring[i].next =
+ cpu_to_le32 (((u32) &
+ rx_ring[(i + 1) % NUM_RX_DESC]));
+ rx_ring[i].status = 0;
+ rx_ring[i].addr = cpu_to_le32 (((u32) & rx_buffer[i][0]));
+ rx_ring[i].length = cpu_to_le32 (PKTSIZE_ALIGN | LAST_FRAG);
}
rx_next = 0;
}
-static void purge_tx_ring(struct eth_device* dev)
+static void purge_tx_ring (struct eth_device *dev)
{
int i;
- PRINTF("Purging tx_ring.\n");
+ PRINTF ("Purging tx_ring.\n");
- tx_next = 0;
+ tx_next = 0;
- for (i = 0; i < NUM_TX_DESC; i++)
- {
- tx_ring[i].next = 0;
- tx_ring[i].status = 0;
- tx_ring[i].addr = 0;
- tx_ring[i].length = 0;
+ for (i = 0; i < NUM_TX_DESC; i++) {
+ tx_ring[i].next = 0;
+ tx_ring[i].status = 0;
+ tx_ring[i].addr = 0;
+ tx_ring[i].length = 0;
}
}
-static void read_hw_addr(struct eth_device* dev, bd_t *bis)
+static void read_hw_addr (struct eth_device *dev, bd_t * bis)
{
u8 hw_addr[ETH_ALEN];
unsigned int eeprom[0x40];
@@ -807,77 +788,77 @@ static void read_hw_addr(struct eth_device* dev, bd_t *bis)
/* Read the station address from the EEPROM. */
- EL3WINDOW(dev, 0);
- for (i = 0; i < 0x40; i++)
- {
- ETH_OUTW(dev, EEPROM_Read + i, Wn0EepromCmd);
+ EL3WINDOW (dev, 0);
+ for (i = 0; i < 0x40; i++) {
+ ETH_OUTW (dev, EEPROM_Read + i, Wn0EepromCmd);
/* Pause for at least 162 us. for the read to take place. */
- for (timer = 10; timer >= 0; timer--)
- {
- udelay(162);
- if ((ETH_INW(dev, Wn0EepromCmd) & 0x8000) == 0)
+ for (timer = 10; timer >= 0; timer--) {
+ udelay (162);
+ if ((ETH_INW (dev, Wn0EepromCmd) & 0x8000) == 0)
break;
}
- eeprom[i] = ETH_INW(dev, Wn0EepromData);
+ eeprom[i] = ETH_INW (dev, Wn0EepromData);
}
/* Checksum calculation. I'm not sure about this part and there seems to be a bug on the 3com side of things */
for (i = 0; i < 0x21; i++)
- checksum ^= eeprom[i];
+ checksum ^= eeprom[i];
checksum = (checksum ^ (checksum >> 8)) & 0xff;
if (checksum != 0xbb)
- printf(" *** INVALID EEPROM CHECKSUM %4.4x *** \n", checksum);
+ printf (" *** INVALID EEPROM CHECKSUM %4.4x *** \n",
+ checksum);
- for (i = 0, j = 0; i < 3; i++)
- {
- hw_addr[j++] = (u8)((eeprom[i+10] >> 8) & 0xff);
- hw_addr[j++] = (u8)(eeprom[i+10] & 0xff);
+ for (i = 0, j = 0; i < 3; i++) {
+ hw_addr[j++] = (u8) ((eeprom[i + 10] >> 8) & 0xff);
+ hw_addr[j++] = (u8) (eeprom[i + 10] & 0xff);
}
/* MAC Address is in window 2, write value from EEPROM to window 2 */
- EL3WINDOW(dev, 2);
+ EL3WINDOW (dev, 2);
for (i = 0; i < 6; i++)
- ETH_OUTB(dev, hw_addr[i], i);
+ ETH_OUTB (dev, hw_addr[i], i);
- for (j = 0; j < ETH_ALEN; j+=2)
- {
- hw_addr[j] = (u8)(ETH_INW(dev, j) & 0xff);
- hw_addr[j+1] = (u8)((ETH_INW(dev, j) >> 8) & 0xff);
+ for (j = 0; j < ETH_ALEN; j += 2) {
+ hw_addr[j] = (u8) (ETH_INW (dev, j) & 0xff);
+ hw_addr[j + 1] = (u8) ((ETH_INW (dev, j) >> 8) & 0xff);
}
- for (i=0;i<ETH_ALEN;i++)
- {
- if (hw_addr[i] != bis->bi_enetaddr[i])
- {
-/* printf("Warning: HW address don't match:\n"); */
-/* printf("Address in 3Com Window 2 is " */
-/* "%02X:%02X:%02X:%02X:%02X:%02X\n", */
-/* hw_addr[0], hw_addr[1], hw_addr[2], */
-/* hw_addr[3], hw_addr[4], hw_addr[5]); */
-/* printf("Address used by U-Boot is " */
-/* "%02X:%02X:%02X:%02X:%02X:%02X\n", */
-/* bis->bi_enetaddr[0], bis->bi_enetaddr[1], */
-/* bis->bi_enetaddr[2], bis->bi_enetaddr[3], */
-/* bis->bi_enetaddr[4], bis->bi_enetaddr[5]); */
-/* goto Done; */
- char buffer[256];
- if (bis->bi_enetaddr[0] == 0 && bis->bi_enetaddr[1] == 0 &&
- bis->bi_enetaddr[2] == 0 && bis->bi_enetaddr[3] == 0 &&
- bis->bi_enetaddr[4] == 0 && bis->bi_enetaddr[5] == 0)
- {
-
- sprintf(buffer, "%02X:%02X:%02X:%02X:%02X:%02X",
- hw_addr[0], hw_addr[1], hw_addr[2],
- hw_addr[3], hw_addr[4], hw_addr[5]);
- setenv("ethaddr", buffer);
- }
+ for (i = 0; i < ETH_ALEN; i++) {
+ if (hw_addr[i] != bis->bi_enetaddr[i]) {
+/* printf("Warning: HW address don't match:\n"); */
+/* printf("Address in 3Com Window 2 is " */
+/* "%02X:%02X:%02X:%02X:%02X:%02X\n", */
+/* hw_addr[0], hw_addr[1], hw_addr[2], */
+/* hw_addr[3], hw_addr[4], hw_addr[5]); */
+/* printf("Address used by U-Boot is " */
+/* "%02X:%02X:%02X:%02X:%02X:%02X\n", */
+/* bis->bi_enetaddr[0], bis->bi_enetaddr[1], */
+/* bis->bi_enetaddr[2], bis->bi_enetaddr[3], */
+/* bis->bi_enetaddr[4], bis->bi_enetaddr[5]); */
+/* goto Done; */
+ char buffer[256];
+
+ if (bis->bi_enetaddr[0] == 0
+ && bis->bi_enetaddr[1] == 0
+ && bis->bi_enetaddr[2] == 0
+ && bis->bi_enetaddr[3] == 0
+ && bis->bi_enetaddr[4] == 0
+ && bis->bi_enetaddr[5] == 0) {
+
+ sprintf (buffer,
+ "%02X:%02X:%02X:%02X:%02X:%02X",
+ hw_addr[0], hw_addr[1], hw_addr[2],
+ hw_addr[3], hw_addr[4], hw_addr[5]);
+ setenv ("ethaddr", buffer);
+ }
}
}
- for(i=0; i<ETH_ALEN; i++) dev->enetaddr[i] = hw_addr[i];
+ for (i = 0; i < ETH_ALEN; i++)
+ dev->enetaddr[i] = hw_addr[i];
Done:
return;
generated by cgit v1.1 at 2024-11-22 17:45:27 +0000