/*
* init_emac: Initializes the Ethernet control registers
*/
static int init_emac(bcmenet_softc *softc)
{
ETHERNET_MAC_INFO EnetInfos[BP_MAX_ENET_MACS];
#if defined(_BCM96348_)
uint32 gpiomode;
#endif
/* disable ethernet MAC while updating its registers */
EMAC->config = EMAC_DISABLE ;
while(EMAC->config & EMAC_DISABLE);
/* issue soft reset, wait for it to complete */
EMAC->config = EMAC_SOFT_RESET;
while (EMAC->config & EMAC_SOFT_RESET);
BpGetEthernetMacInfo( EnetInfos, BP_MAX_ENET_MACS );
memcpy(&softc->EnetInfo,&EnetInfos[EMAC_INFO_INDEX],sizeof(softc->EnetInfo));
softc->emac = EMAC;
#if defined(_BCM96348_)
if (softc->emac == EMAC2) {
if (softc->EnetInfo.ucPhyType != BP_ENET_INTERNAL_PHY) {
gpiomode = GPIO->GPIOMode;
gpiomode |= (GROUP3_EXT_MII|GROUP0_EXT_MII); /* External MII */
if ((softc->EnetInfo.usConfigType == BP_ENET_CONFIG_SPI_SSB_1) ||
(softc->EnetInfo.usConfigType == BP_ENET_CONFIG_SPI_SSB_2) ||
(softc->EnetInfo.usConfigType == BP_ENET_CONFIG_SPI_SSB_3)) {
gpiomode &= ~GROUP1_SPI_MASTER;
gpiomode |= GROUP1_SPI_MASTER;
}
GPIO->GPIOMode = gpiomode;
}
}
#endif
if (mii_init(softc))
return -1;
/* Initialize emac registers */
EMAC->rxControl = EMAC_FC_EN; // //EMAC_PROM; NO Promiscuous > 5.0
#ifdef MAC_LOOPBACK
EMAC->rxControl |= EMAC_LOOPBACK;
#endif
EMAC->rxMaxLength = ENET_MAX_MTU_SIZE;
EMAC->txMaxLength = ENET_MAX_MTU_SIZE;
/* tx threshold = abs(63-(0.63*DMA_MAX_BURST_LENGTH)) */
EMAC->txThreshold = EMAC_TX_WATERMARK;
EMAC->mibControl = EMAC_NO_CLEAR; /* clear MIBs on read */
EMAC->intMask = 0; /* mask all EMAC interrupts*/
EMAC->config |= EMAC_ENABLE;
softc->dmaCtrl->controller_cfg |= DMA_MASTER_EN;
return 0;
}
/**
* Probe PCI device
*
* @v pci PCI device
* @ret rc Return status code
*/
static int skeleton_probe ( struct pci_device *pci ) {
struct net_device *netdev;
struct skeleton_nic *skel;
int rc;
/* Allocate and initialise net device */
netdev = alloc_etherdev ( sizeof ( *skel ) );
if ( ! netdev ) {
rc = -ENOMEM;
goto err_alloc;
}
netdev_init ( netdev, &skeleton_operations );
skel = netdev->priv;
pci_set_drvdata ( pci, netdev );
netdev->dev = &pci->dev;
memset ( skel, 0, sizeof ( *skel ) );
/* Fix up PCI device */
adjust_pci_device ( pci );
/* Map registers */
skel->regs = ioremap ( pci->membase, SKELETON_BAR_SIZE );
/* Reset the NIC */
if ( ( rc = skeleton_reset ( skel ) ) != 0 )
goto err_reset;
/* Initialise and reset MII interface */
mii_init ( &skel->mii, &skeleton_mii_operations );
if ( ( rc = mii_reset ( &skel->mii ) ) != 0 ) {
DBGC ( skel, "SKELETON %p could not reset MII: %s\n",
skel, strerror ( rc ) );
goto err_mii_reset;
}
/* Register network device */
if ( ( rc = register_netdev ( netdev ) ) != 0 )
goto err_register_netdev;
/* Set initial link state */
skeleton_check_link ( netdev );
return 0;
unregister_netdev ( netdev );
err_register_netdev:
err_mii_reset:
skeleton_reset ( skel );
err_reset:
iounmap ( skel->regs );
netdev_nullify ( netdev );
netdev_put ( netdev );
err_alloc:
return rc;
}
void reset_phys(void)
{
int phyno;
unsigned short v;
/* reset the damn phys */
mii_init();
for (phyno = 0; phyno < 32; ++phyno) {
fec8xx_miiphy_read(NULL, phyno, PHY_PHYIDR1, &v);
if (v == 0xFFFF)
continue;
fec8xx_miiphy_write(NULL, phyno, PHY_BMCR, PHY_BMCR_POWD);
udelay(10000);
fec8xx_miiphy_write(NULL, phyno, PHY_BMCR,
PHY_BMCR_RESET | PHY_BMCR_AUTON);
udelay(10000);
}
}
/*
* Miscellaneous intialization
*/
int misc_init_r (void)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immr->im_memctl;
/*
* Set up UPMB to handle the Virtex FPGA SelectMap interface
*/
upmconfig (UPMB, (uint *) selectmap_upm_table,
sizeof (selectmap_upm_table) / sizeof (uint));
memctl->memc_mbmr = 0x0;
config_mpc8xx_ioports (immr);
#if (CONFIG_COMMANDS & CFG_CMD_MII)
mii_init ();
#endif
#if (CONFIG_FPGA)
gen860t_init_fpga ();
#endif
return 0;
}
int misc_init_r (void)
{
uchar val;
/*
* Make sure that RTC has clock output enabled (triggers watchdog!)
*/
val = i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, 0x0D);
val |= 0x80;
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, 0x0D, val);
/*
* Configure PHY to setup LED's correctly and use 100MBit, FD
*/
mii_init();
/* disable auto-negotiation, 100mbit, full-duplex */
fec8xx_miiphy_write(NULL, 0, MII_BMCR, 0x2100);
/* set LED's to Link, Transmit, Receive */
fec8xx_miiphy_write(NULL, 0, MII_NWAYTEST, 0x4122);
return 0;
}
/*
* MII device/info/read/write
*
* Syntax:
* mii device {devname}
* mii info {addr}
* mii read {addr} {reg}
* mii write {addr} {reg} {data}
*/
int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
char op;
unsigned char addr, reg;
unsigned short data;
int rcode = 0;
char *devname;
if (argc < 2) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
#if defined(CONFIG_8xx) || defined(CONFIG_MCF52x2)
mii_init ();
#endif
/*
* We use the last specified parameters, unless new ones are
* entered.
*/
op = last_op;
addr = last_addr;
data = last_data;
reg = last_reg;
if ((flag & CMD_FLAG_REPEAT) == 0) {
op = argv[1][0];
if (argc >= 3)
addr = simple_strtoul (argv[2], NULL, 16);
if (argc >= 4)
reg = simple_strtoul (argv[3], NULL, 16);
if (argc >= 5)
data = simple_strtoul (argv[4], NULL, 16);
}
/* use current device */
devname = miiphy_get_current_dev();
/*
* check device/read/write/list.
*/
if (op == 'i') {
unsigned char j, start, end;
unsigned int oui;
unsigned char model;
unsigned char rev;
/*
* Look for any and all PHYs. Valid addresses are 0..31.
*/
if (argc >= 3) {
start = addr; end = addr + 1;
} else {
start = 0; end = 31;
}
for (j = start; j < end; j++) {
if (miiphy_info (devname, j, &oui, &model, &rev) == 0) {
printf ("PHY 0x%02X: "
"OUI = 0x%04X, "
"Model = 0x%02X, "
"Rev = 0x%02X, "
"%3dbase%s, %s\n",
j, oui, model, rev,
miiphy_speed (devname, j),
miiphy_is_1000base_x (devname, j)
? "X" : "T",
(miiphy_duplex (devname, j) == FULL)
? "FDX" : "HDX");
}
}
} else if (op == 'r') {
if (miiphy_read (devname, addr, reg, &data) != 0) {
puts ("Error reading from the PHY\n");
rcode = 1;
} else {
printf ("%04X\n", data & 0x0000FFFF);
}
} else if (op == 'w') {
if (miiphy_write (devname, addr, reg, data) != 0) {
puts ("Error writing to the PHY\n");
rcode = 1;
}
} else if (op == 'd') {
if (argc == 2)
miiphy_listdev ();
else
miiphy_set_current_dev (argv[2]);
} else {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/*
* Save the parameters for repeats.
*/
last_op = op;
last_addr = addr;
last_data = data;
last_reg = reg;
return rcode;
}
void vEMACInit( void )
{
int iData;
extern int periph_clk_khz;
const unsigned portCHAR ucMACAddress[] =
{
configMAC_ADDR0, configMAC_ADDR1, configMAC_ADDR2, configMAC_ADDR3, configMAC_ADDR4, configMAC_ADDR5
};
/* Enable the ENET clock. */
SIM_SCGC2 |= SIM_SCGC2_ENET_MASK;
/* Allow concurrent access to MPU controller to avoid bus errors. */
MPU_CESR = 0;
prvInitialiseDescriptors();
/* Reset and enable. */
ENET_ECR = ENET_ECR_RESET_MASK;
/* Wait at least 8 clock cycles */
vTaskDelay( 2 );
/* Start the MII interface*/
mii_init( 0, periph_clk_khz / 1000L );
/* Configure the transmit interrupt. */
set_irq_priority( emacTX_INTERRUPT_NO, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
enable_irq( emacTX_INTERRUPT_NO );
/* Configure the receive interrupt. */
set_irq_priority( emacRX_INTERRUPT_NO, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
enable_irq( emacRX_INTERRUPT_NO );
/* Configure the error interrupt. */
set_irq_priority( emacERROR_INTERRUPT_NO, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
enable_irq( emacERROR_INTERRUPT_NO );
/* Configure the pins to the PHY - RMII mode used. */
PORTB_PCR0 = PORT_PCR_MUX( 4 ); /* RMII0_MDIO / MII0_MDIO. */
PORTB_PCR1 = PORT_PCR_MUX( 4 ); /* RMII0_MDC / MII0_MDC */
PORTA_PCR14 = PORT_PCR_MUX( 4 ); /* RMII0_CRS_DV / MII0_RXDV */
PORTA_PCR12 = PORT_PCR_MUX( 4 ); /* RMII0_RXD1 / MII0_RXD1 */
PORTA_PCR13 = PORT_PCR_MUX( 4 ); /* RMII0_RXD0/MII0_RXD0 */
PORTA_PCR15 = PORT_PCR_MUX( 4 ); /* RMII0_TXEN/MII0_TXEN */
PORTA_PCR16 = PORT_PCR_MUX( 4 ); /* RMII0_TXD0/MII0_TXD0 */
PORTA_PCR17 = PORT_PCR_MUX( 4 ); /* RMII0_TXD1/MII0_TXD1 */
/* Is there communication with the PHY? */
do
{
vTaskDelay( emacLINK_DELAY );
iData = 0xFFFF;
mii_read( 0, configPHY_ADDRESS, PHY_PHYIDR1, &iData );
} while( iData == 0xFFFF );
/* Start to auto negotiate. */
mii_write( 0, configPHY_ADDRESS, PHY_BMCR, ( PHY_BMCR_AN_RESTART | PHY_BMCR_AN_ENABLE ) );
/* Wait for auto negotiate to complete. */
do
{
vTaskDelay( emacLINK_DELAY );
mii_read( 0, configPHY_ADDRESS, PHY_BMSR, &iData );
} while( !( iData & PHY_BMSR_AN_COMPLETE ) );
/* A link has been established. What was negotiated? */
iData = 0;
mii_read( 0, configPHY_ADDRESS, emacPHY_STATUS, &iData );
/* Clear the Individual and Group Address Hash registers */
ENET_IALR = 0;
ENET_IAUR = 0;
ENET_GALR = 0;
ENET_GAUR = 0;
/* Set the Physical Address for the selected ENET */
enet_set_address( 0, ucMACAddress );
ENET_RCR = ENET_RCR_MAX_FL( UIP_BUFSIZE ) | ENET_RCR_MII_MODE_MASK | ENET_RCR_CRCFWD_MASK | ENET_RCR_RMII_MODE_MASK;
/* Clear the control registers. */
ENET_TCR = 0;
if( iData & emacPHY_DUPLEX_STATUS )
{
/* Full duplex */
ENET_RCR &= ( unsigned long )~ENET_RCR_DRT_MASK;
ENET_TCR |= ENET_TCR_FDEN_MASK;
}
else
{
/* Half duplex */
ENET_RCR |= ENET_RCR_DRT_MASK;
ENET_TCR &= (unsigned portLONG)~ENET_TCR_FDEN_MASK;
}
if( iData & emacPHY_SPEED_STATUS )
{
/* 10Mbps */
ENET_RCR |= ENET_RCR_RMII_10T_MASK;
}
ENET_ECR = ENET_ECR_EN1588_MASK;
/* Store and forward checksum. */
ENET_TFWR = ENET_TFWR_STRFWD_MASK;
/* Set Rx Buffer Size */
ENET_MRBR = ( unsigned short ) UIP_BUFSIZE;
/* Point to the start of the circular Rx buffer descriptor queue */
ENET_RDSR = ( unsigned long ) &( xRxDescriptors[ 0 ] );
/* Point to the start of the circular Tx buffer descriptor queue */
ENET_TDSR = ( unsigned long ) &( xTxDescriptors[ 0 ] );
/* Clear all ENET interrupt events */
ENET_EIR = ( unsigned long ) -1;
/* Enable interrupts. */
ENET_EIMR = 0
/*rx irqs*/
| ENET_EIMR_RXF_MASK/* only for complete frame, not partial buffer descriptor | ENET_EIMR_RXB_MASK*/
/*xmit irqs*/
| ENET_EIMR_TXF_MASK/* only for complete frame, not partial buffer descriptor | ENET_EIMR_TXB_MASK*/
/*enet irqs*/
| ENET_EIMR_UN_MASK | ENET_EIMR_RL_MASK | ENET_EIMR_LC_MASK | ENET_EIMR_BABT_MASK | ENET_EIMR_BABR_MASK | ENET_EIMR_EBERR_MASK
;
/* Enable the MAC itself. */
ENET_ECR |= ENET_ECR_ETHEREN_MASK;
/* Indicate that there have been empty receive buffers produced */
ENET_RDAR = ENET_RDAR_RDAR_MASK;
}
/**
* Probe device
*
* @v func USB function
* @v config Configuration descriptor
* @ret rc Return status code
*/
static int smsc95xx_probe ( struct usb_function *func,
struct usb_configuration_descriptor *config ) {
struct usb_device *usb = func->usb;
struct net_device *netdev;
struct smsc95xx_device *smsc95xx;
int rc;
/* Allocate and initialise structure */
netdev = alloc_etherdev ( sizeof ( *smsc95xx ) );
if ( ! netdev ) {
rc = -ENOMEM;
goto err_alloc;
}
netdev_init ( netdev, &smsc95xx_operations );
netdev->dev = &func->dev;
smsc95xx = netdev->priv;
memset ( smsc95xx, 0, sizeof ( *smsc95xx ) );
smsc95xx->usb = usb;
smsc95xx->bus = usb->port->hub->bus;
smsc95xx->netdev = netdev;
usbnet_init ( &smsc95xx->usbnet, func, &smsc95xx_intr_operations,
&smsc95xx_in_operations, &smsc95xx_out_operations );
usb_refill_init ( &smsc95xx->usbnet.intr, 0, 0,
SMSC95XX_INTR_MAX_FILL );
usb_refill_init ( &smsc95xx->usbnet.in,
( sizeof ( struct smsc95xx_tx_header ) -
sizeof ( struct smsc95xx_rx_header ) ),
SMSC95XX_IN_MTU, SMSC95XX_IN_MAX_FILL );
mii_init ( &smsc95xx->mii, &smsc95xx_mii_operations );
DBGC ( smsc95xx, "SMSC95XX %p on %s\n", smsc95xx, func->name );
/* Describe USB network device */
if ( ( rc = usbnet_describe ( &smsc95xx->usbnet, config ) ) != 0 ) {
DBGC ( smsc95xx, "SMSC95XX %p could not describe: %s\n",
smsc95xx, strerror ( rc ) );
goto err_describe;
}
/* Reset device */
if ( ( rc = smsc95xx_reset ( smsc95xx ) ) != 0 )
goto err_reset;
/* Read MAC address */
if ( ( rc = smsc95xx_fetch_mac ( smsc95xx, netdev->hw_addr ) ) != 0 )
goto err_fetch_mac;
/* Register network device */
if ( ( rc = register_netdev ( netdev ) ) != 0 )
goto err_register;
usb_func_set_drvdata ( func, netdev );
return 0;
unregister_netdev ( netdev );
err_register:
err_fetch_mac:
err_reset:
err_describe:
netdev_nullify ( netdev );
netdev_put ( netdev );
err_alloc:
return rc;
}
/**
* Probe PCI device
*
* @v pci PCI device
* @ret rc Return status code
*/
static int rhine_probe ( struct pci_device *pci ) {
struct net_device *netdev;
struct rhine_nic *rhn;
uint8_t revision;
unsigned int i;
int rc;
/* Allocate and initialise net device */
netdev = alloc_etherdev ( sizeof ( *rhn ) );
if ( ! netdev ) {
rc = -ENOMEM;
goto err_alloc;
}
netdev_init ( netdev, &rhine_operations );
rhn = netdev->priv;
pci_set_drvdata ( pci, netdev );
netdev->dev = &pci->dev;
memset ( rhn, 0, sizeof ( *rhn ) );
rhine_init_ring ( &rhn->tx, RHINE_TXDESC_NUM, RHINE_TXQUEUE_BASE );
rhine_init_ring ( &rhn->rx, RHINE_RXDESC_NUM, RHINE_RXQUEUE_BASE );
/* Fix up PCI device */
adjust_pci_device ( pci );
/* Map registers */
rhn->regs = ioremap ( pci->membase, RHINE_BAR_SIZE );
rhn->ioaddr = pci->ioaddr;
DBGC ( rhn, "RHINE %p regs at %08lx, I/O at %04lx\n", rhn,
pci->membase, pci->ioaddr );
/* Reset the NIC */
if ( ( rc = rhine_reset ( rhn ) ) != 0 )
goto err_reset;
/* Reload EEPROM */
if ( ( rc = rhine_reload_eeprom ( rhn ) ) != 0 )
goto err_reload_eeprom;
/* Read card revision and enable MMIO */
pci_read_config_byte ( pci, PCI_REVISION, &revision );
DBGC ( rhn, "RHINE %p revision %#02x detected\n", rhn, revision );
rhine_enable_mmio ( rhn, revision );
/* Read MAC address */
for ( i = 0 ; i < ETH_ALEN ; i++ )
netdev->hw_addr[i] = readb ( rhn->regs + RHINE_MAC + i );
/* Initialise and reset MII interface */
mii_init ( &rhn->mii, &rhine_mii_operations );
if ( ( rc = mii_reset ( &rhn->mii ) ) != 0 ) {
DBGC ( rhn, "RHINE %p could not reset MII: %s\n",
rhn, strerror ( rc ) );
goto err_mii_reset;
}
DBGC ( rhn, "RHINE PHY vendor %04x device %04x\n",
rhine_mii_read ( &rhn->mii, 0x02 ),
rhine_mii_read ( &rhn->mii, 0x03 ) );
/* Register network device */
if ( ( rc = register_netdev ( netdev ) ) != 0 )
goto err_register_netdev;
/* Set initial link state */
rhine_check_link ( netdev );
return 0;
err_register_netdev:
err_mii_reset:
err_reload_eeprom:
rhine_reset ( rhn );
err_reset:
netdev_nullify ( netdev );
netdev_put ( netdev );
err_alloc:
return rc;
}
/**
* In this function, the hardware should be initialized.
* Called from ethernetif_init().
*
* @param netif the already initialized lwip network interface structure
* for this ethernetif
*/
static void low_level_init(struct netif *netif) {
StatusType result;
int data;
/* set MAC hardware address length */
netif->hwaddr_len = ETHARP_HWADDR_LEN;
/* set MAC hardware address */
netif->hwaddr[0] = MAC_ADDR0;
netif->hwaddr[1] = MAC_ADDR1;
netif->hwaddr[2] = MAC_ADDR2;
netif->hwaddr[3] = MAC_ADDR3;
netif->hwaddr[4] = MAC_ADDR4;
netif->hwaddr[5] = MAC_ADDR5;
/* maximum transfer unit */
netif->mtu = ENET_MAX_PKT_SIZE - 20;
/* device capabilities */
/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
/* enable the ENET clock */
SIM_SCGC2 |= SIM_SCGC2_ENET_MASK;
/* allow concurrent access to MPU controller. Example: ENET uDMA to SRAM, otherwise bus error */
MPU_CESR = 0;
init_enet_bufs();
/* create semaphores */
sem_rx = CoCreateSem(NUM_ENET_TX_BUFS, NUM_ENET_TX_BUFS, 1);
sem_tx = CoCreateSem(0, NUM_ENET_RX_BUFS, 1);
/* Set the Reset bit and clear the Enable bit */
ENET_ECR = ENET_ECR_RESET_MASK;
/* Wait at least 8 clock cycles */
for (data = 0; data < 10; data++) {
asm("NOP");
}
/* start MII interface */
mii_init(50/*BUS_CLOCK*/);
// enet tx interrupt
NVIC_SetPriority(ENET_Transmit_IRQn, 6);
NVIC_EnableIRQ(ENET_Transmit_IRQn);
// enet rx interrupt
NVIC_SetPriority(ENET_Receive_IRQn, 6);
NVIC_EnableIRQ(ENET_Receive_IRQn);
//enet error interrupt
NVIC_SetPriority(ENET_Error_IRQn, 6);
NVIC_EnableIRQ(ENET_Error_IRQn);
/* Make sure the external interface signals are enabled */
PORTB_PCR0 = PORT_PCR_MUX(4); //RMII0_MDIO/MII0_MDIO
PORTB_PCR1 = PORT_PCR_MUX(4); //RMII0_MDC/MII0_MDC
#if USE_MII_MODE
PORTA_PCR14 = PORT_PCR_MUX(4); //RMII0_CRS_DV/MII0_RXDV
//PORTA_PCR5 = PORT_PCR_MUX(4); //RMII0_RXER/MII0_RXER
PORTA_PCR12 = PORT_PCR_MUX(4); //RMII0_RXD1/MII0_RXD1
PORTA_PCR13 = PORT_PCR_MUX(4); //RMII0_RXD0/MII0_RXD0
PORTA_PCR15 = PORT_PCR_MUX(4); //RMII0_TXEN/MII0_TXEN
PORTA_PCR16 = PORT_PCR_MUX(4); //RMII0_TXD0/MII0_TXD0
PORTA_PCR17 = PORT_PCR_MUX(4); //RMII0_TXD1/MII0_TXD1
PORTA_PCR11 = PORT_PCR_MUX(4); //MII0_RXCLK
PORTA_PCR25 = PORT_PCR_MUX(4); //MII0_TXCLK
PORTA_PCR9 = PORT_PCR_MUX(4); //MII0_RXD3
PORTA_PCR10 = PORT_PCR_MUX(4); //MII0_RXD2
PORTA_PCR28 = PORT_PCR_MUX(4); //MII0_TXER
PORTA_PCR24 = PORT_PCR_MUX(4); //MII0_TXD2
PORTA_PCR26 = PORT_PCR_MUX(4); //MII0_TXD3
PORTA_PCR27 = PORT_PCR_MUX(4); //MII0_CRS
PORTA_PCR29 = PORT_PCR_MUX(4); //MII0_COL
#else
PORTA_PCR14 = PORT_PCR_MUX(4); //RMII0_CRS_DV/MII0_RXDV
// PORTA_PCR5 = PORT_PCR_MUX(4); //RMII0_RXER/MII0_RXER
PORTA_PCR12 = PORT_PCR_MUX(4); //RMII0_RXD1/MII0_RXD1
PORTA_PCR13 = PORT_PCR_MUX(4); //RMII0_RXD0/MII0_RXD0
PORTA_PCR15 = PORT_PCR_MUX(4); //RMII0_TXEN/MII0_TXEN
PORTA_PCR16 = PORT_PCR_MUX(4); //RMII0_TXD0/MII0_TXD0
PORTA_PCR17 = PORT_PCR_MUX(4); //RMII0_TXD1/MII0_TXD1
#endif /* USE_MII_MODE */
/* Can we talk to the PHY? */
do {
CoTickDelay(PHY_LINK_DELAY);
data = 0xffff;
mii_read(PHY_ADDR, MII_PHYID1, (uint16_t*)&data);
} while (data == 0xffff);
/* Start auto negotiate. */
mii_write(PHY_ADDR, MII_BMCR, (MII_BMCR_ANRESTART | MII_BMCR_ANENABLE));
/* Wait for auto negotiate to complete. */
do {
CoTickDelay(PHY_LINK_DELAY);
mii_read(PHY_ADDR, MII_BMSR, (uint16_t*)&data);
} while (!(data & MII_BMSR_ANEGCOMPLETE));
/* When we get here we have a link - find out what has been negotiated. */
data = 0;
mii_read(PHY_ADDR, PHY_STATUS, (uint16_t*)&data);
/* Set the Physical Address for the selected ENET */
ENET_PALR = (uint32_t)((netif->hwaddr[0] << 24) | (netif->hwaddr[1] << 16) | (netif->hwaddr[2] << 8) | netif->hwaddr[3]);
ENET_PAUR = (uint32_t)((netif->hwaddr[4] << 24) | (netif->hwaddr[5] << 16));
/* Clear the Individual and Group Address Hash registers */
ENET_IALR = 0;
ENET_IAUR = 0;
ENET_GALR = 0;
ENET_GAUR = 0;
#if USE_MII_MODE
/* various mode/status setup */
ENET_RCR = ENET_RCR_MAX_FL(ENET_MAX_PKT_SIZE) | ENET_RCR_MII_MODE_MASK | ENET_RCR_CRCFWD_MASK;
#else
ENET_RCR = ENET_RCR_MAX_FL(ENET_MAX_PKT_SIZE) | ENET_RCR_MII_MODE_MASK | ENET_RCR_CRCFWD_MASK | ENET_RCR_RMII_MODE_MASK;
#endif
/* clear rx/tx control registers */
ENET_TCR = 0;
/* setup half or full duplex */
if (data & PHY_DUPLEX_STATUS) {
/* full duplex */
ENET_RCR &= ~ENET_RCR_DRT_MASK;
ENET_TCR |= ENET_TCR_FDEN_MASK;
}
else {
/* half duplex */
ENET_RCR |= ENET_RCR_DRT_MASK;
ENET_TCR &= ~ENET_TCR_FDEN_MASK;
}
/* Setup speed */
if (data & PHY_SPEED_STATUS) {
/* 10Mbps */
ENET_RCR |= ENET_RCR_RMII_10T_MASK;
}
#if USE_PROMISCUOUS_MODE
ENET_RCR |= ENET_RCR_PROM_MASK;
#endif
#ifdef ENHANCED_BD
ENET_ECR = ENET_ECR_EN1588_MASK;
#else
ENET_ECR = 0;
#endif
#if ENET_HARDWARE_CHECKSUM
/* enable discard on wrong protocol checksum and other nice features */
ENET_RACC = ENET_RACC_IPDIS_MASK | ENET_RACC_PRODIS_MASK
| ENET_RACC_LINEDIS_MASK | ENET_RACC_IPDIS_MASK | ENET_RACC_PADREM_MASK;
/* enable protocol checksum insertion */
ENET_TACC = ENET_TACC_IPCHK_MASK | ENET_TACC_PROCHK_MASK;
#endif
ENET_TFWR = ENET_TFWR_STRFWD_MASK;
#if ENET_HARDWARE_SHIFT
/* enable ethernet header alignment for rx */
ENET_RACC |= ENET_RACC_SHIFT16_MASK;
/* enable ethernet header alignment for tx */
ENET_TACC |= ENET_TACC_SHIFT16_MASK;
#endif
/* set rx buffer size */
ENET_MRBR = ENET_RX_BUF_SIZE;
/* point to the start of the circular rx buffer descriptor queue */
ENET_RDSR = (uint32_t)rx_bd;
/* point to the start of the circular tx buffer descriptor queue */
ENET_TDSR = (uint32_t)tx_bd;
/* clear all ENET interrupt events */
ENET_EIR = -1u;
/* enable interrupts */
ENET_EIMR = 0
/* rx irqs */
| ENET_EIMR_RXF_MASK /* only for complete frame, not partial buffer descriptor */
/* tx irqs */
| ENET_EIMR_TXF_MASK /* only for complete frame, not partial buffer descriptor */
/* others enet irqs */
| ENET_EIMR_UN_MASK | ENET_EIMR_RL_MASK | ENET_EIMR_LC_MASK | ENET_EIMR_BABT_MASK | ENET_EIMR_BABR_MASK | ENET_EIMR_EBERR_MASK;
/* create the task that handles the MAC ENET */
result = CoCreateTask((FUNCPtr)ethernetif_input, (void *)netif, TASK_ETHIF_PRIO, &stack[TASK_ETHIF_STACK_SIZE - 1], TASK_ETHIF_STACK_SIZE);
if (result == E_CREATE_FAIL) {
LWIP_DEBUGF(NETIF_DEBUG,("Task for ETH recive created failed !\n\r "));
};
/* Enable the MAC itself */
ENET_ECR |= ENET_ECR_ETHEREN_MASK;
/* Indicate that there have been empty receive buffers produced */
ENET_RDAR = ENET_RDAR_RDAR_MASK;
}
static BT_ERROR mac_init(BT_HANDLE hMAC) {
volatile LM3Sxx_MAC_REGS *pRegs = hMAC->pRegs;
BT_u32 ulTemp;
BT_ERROR Error = BT_ERR_NONE;
struct _MII_HANDLE *pMII = mii_init(hMAC, &Error);
if(!pMII) {
return Error;
}
Error = BT_RegisterMiiBus((BT_HANDLE) pMII, &pMII->mii);
if(Error) {
return Error;
}
/* Do whatever else is needed to initialize interface. */
/* Disable all mac Interrupts. */
pRegs->MACIM &= ~(LM3Sxx_MAC_MACIM_PHYINT |
LM3Sxx_MAC_MACIM_MDINT |
LM3Sxx_MAC_MACIM_RXER |
LM3Sxx_MAC_MACIM_FOV |
LM3Sxx_MAC_MACIM_RXINT |
LM3Sxx_MAC_MACIM_TXEMP |
LM3Sxx_MAC_MACIM_TXER);
ulTemp = pRegs->MACRIS;
pRegs->MACIACK = ulTemp;
BT_u8 ucMAC[6] = {0x00, 0x50, 0x45, 0x67, 0x89, 0xEF};
mac_setaddr(hMAC, ucMAC, 6);
/* Initialize the mac Controller. */
BT_u32 ulInputClk = BT_LM3Sxx_GetMainFrequency();
BT_u32 ulDiv = (ulInputClk / 2) / 2500000;
pRegs->MACMDV = (ulDiv & 0xFF);
/*
* Configure the mac Controller for normal operation.
* - Enable TX Duplex Mode
* - Enable TX Padding
* - Enable TX CRC Generation
* - Enable RX Multicast Reception
*/
// Setup the Transmit Control Register.
ulTemp = pRegs->MACTCTL;
ulTemp &= ~(LM3Sxx_MAC_MACTCTL_DUPLEX | LM3Sxx_MAC_MACTCTL_CRC | LM3Sxx_MAC_MACTCTL_PADEN);
ulTemp |= (LM3Sxx_MAC_MACTCTL_DUPLEX | LM3Sxx_MAC_MACTCTL_CRC | LM3Sxx_MAC_MACTCTL_PADEN);
pRegs->MACTCTL = ulTemp;
// Setup the Receive Control Register.
ulTemp = pRegs->MACRCTL;
ulTemp &= ~(LM3Sxx_MAC_MACRCTL_BADCRC | LM3Sxx_MAC_MACRCTL_PRMS | LM3Sxx_MAC_MACRCTL_AMUL);
ulTemp |= LM3Sxx_MAC_MACRCTL_AMUL;
pRegs->MACRCTL = ulTemp;
// Setup the Time Stamp Configuration register.
ulTemp = pRegs->MACTS;
ulTemp &= ~(LM3Sxx_MAC_MACTS_TSEN);
pRegs->MACTS = ulTemp;
/* Enable the mac Controller transmitter and receiver. */
// Reset the receive FIFO.
pRegs->MACRCTL |= LM3Sxx_MAC_MACRCTL_RSTFIFO;
// Enable the Ethernet receiver.
pRegs->MACRCTL |= LM3Sxx_MAC_MACRCTL_RXEN;
// Enable Ethernet transmitter.
pRegs->MACTCTL |= LM3Sxx_MAC_MACTCTL_TXEN;
// Reset the receive FIFO again, after the receiver has been enabled.
pRegs->MACRCTL |= LM3Sxx_MAC_MACRCTL_RSTFIFO;
/* Enable mac TX and RX Packet Interrupts. */
pRegs->MACIM |= (LM3Sxx_MAC_MACIM_TXEMP | LM3Sxx_MAC_MACIM_RXINT);
return BT_ERR_NONE;
}