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; }