int rtems_leon_open_eth_driver_attach(
struct rtems_bsdnet_ifconfig *config,
int attach
)
{
int device_found = 0;
int i;
unsigned int conf, iobar;
unsigned int base_addr = 0; /* avoid warnings */
unsigned int eth_irq = 0; /* avoid warnings */
/* Scan for MAC AHB slave interface */
for (i = 0; i < amba_conf.ahbslv.devnr; i++)
{
conf = amba_get_confword(amba_conf.ahbslv, i, 0);
if (((amba_vendor(conf) == VENDOR_OPENCORES) && (amba_device(conf) == OPENCORES_ETHMAC)) ||
((amba_vendor(conf) == VENDOR_GAISLER) && (amba_device(conf) == GAISLER_ETHAHB)))
{
iobar = amba_ahb_get_membar(amba_conf.ahbslv, i, 0);
base_addr = amba_iobar_start(LEON3_IO_AREA, iobar);
eth_irq = amba_irq(conf) + 0x10;
device_found = 1;
break;
}
}
if (device_found)
{
/* clear control register and reset NIC */
*(volatile int *) base_addr = 0;
*(volatile int *) base_addr = 0x800;
*(volatile int *) base_addr = 0;
leon_open_eth_configuration.base_address = base_addr;
leon_open_eth_configuration.vector = eth_irq;
leon_open_eth_configuration.txd_count = TDA_COUNT;
leon_open_eth_configuration.rxd_count = RDA_COUNT;
/* enable 100 MHz operation only if cpu frequency >= 50 MHz */
if (LEON3_Timer_Regs->scaler_reload >= 49) leon_open_eth_configuration.en100MHz = 1;
if (rtems_open_eth_driver_attach( config, &leon_open_eth_configuration )) {
LEON_Clear_interrupt(leon_open_eth_configuration.vector);
LEON_Unmask_interrupt(leon_open_eth_configuration.vector);
}
}
return 0;
}
int rtems_leon_open_eth_driver_attach(struct rtems_bsdnet_ifconfig *config)
{
/* clear control register and reset NIC */
*(volatile int *) OPEN_ETH_BASE_ADDRESS = 0;
*(volatile int *) OPEN_ETH_BASE_ADDRESS = 0x800;
*(volatile int *) OPEN_ETH_BASE_ADDRESS = 0;
/* enable 100 MHz operation only if cpu frequency >= 50 MHz */
if (LEON_REG.Scaler_Reload >= 49) leon_open_eth_configuration.en100MHz = 1;
if (rtems_open_eth_driver_attach( config, &leon_open_eth_configuration )) {
LEON_REG.Interrupt_Clear = (1 << (OPEN_ETH_VECTOR - 0x10));
LEON_REG.Interrupt_Mask |= (1 << (OPEN_ETH_VECTOR - 0x10));
}
return 0;
}
int rtems_leon_open_eth_driver_attach(
struct rtems_bsdnet_ifconfig *config,
int attach
)
{
unsigned int base_addr = 0; /* avoid warnings */
unsigned int eth_irq = 0; /* avoid warnings */
struct ambapp_dev *adev;
struct ambapp_ahb_info *ahb;
/* Scan for MAC AHB slave interface */
adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_AHB_SLVS),
VENDOR_OPENCORES, OPENCORES_ETHMAC,
ambapp_find_by_idx, NULL);
if (!adev) {
adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_AHB_SLVS),
VENDOR_GAISLER, GAISLER_ETHAHB,
ambapp_find_by_idx, NULL);
}
if (adev)
{
ahb = DEV_TO_AHB(adev);
base_addr = ahb->start[0];
eth_irq = ahb->irq;
/* clear control register and reset NIC */
*(volatile int *) base_addr = 0;
*(volatile int *) base_addr = 0x800;
*(volatile int *) base_addr = 0;
leon_open_eth_configuration.base_address = base_addr;
leon_open_eth_configuration.vector = eth_irq + 0x10;
leon_open_eth_configuration.txd_count = TDA_COUNT;
leon_open_eth_configuration.rxd_count = RDA_COUNT;
/* enable 100 MHz operation only if cpu frequency >= 50 MHz */
if (LEON3_Timer_Regs->scaler_reload >= 49)
leon_open_eth_configuration.en100MHz = 1;
if (rtems_open_eth_driver_attach( config, &leon_open_eth_configuration )) {
LEON_Clear_interrupt(eth_irq);
LEON_Unmask_interrupt(eth_irq);
}
}
return 0;
}
