forked from Imagelibrary/rtems
cb682532cf
Add and use <machine/rtems-bsd-kernel-space.h> and <machine/rtems-bsd-user-space.h> similar to the libbsd to avoid command line defines and defines scattered throught the code base. Simplify cpukit/libnetworking/Makefile.am. Update #3375.
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/**
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* @file
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* @ingroup sparc_leon3
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* @brief LEON3 Opencores Ethernet MAC Configuration Information
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*/
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/*
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* Copyright (c) 2004.
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* Aeroflex Gaisler AB.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <machine/rtems-bsd-kernel-space.h>
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#include <bsp.h>
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#include <libchip/open_eth.h>
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#if (OPEN_ETH_DEBUG & OPEN_ETH_DEBUG_PRINT_REGISTERS)
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#include <stdio.h>
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#endif
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/*
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* Default sizes of transmit and receive descriptor areas
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*/
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#define RDA_COUNT 16
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#define TDA_COUNT 16
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open_eth_configuration_t leon_open_eth_configuration;
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int rtems_leon_open_eth_driver_attach(
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struct rtems_bsdnet_ifconfig *config,
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int attach
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)
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{
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unsigned int base_addr = 0; /* avoid warnings */
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unsigned int eth_irq = 0; /* avoid warnings */
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struct ambapp_dev *adev;
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struct ambapp_ahb_info *ahb;
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/* Scan for MAC AHB slave interface */
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adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_AHB_SLVS),
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VENDOR_OPENCORES, OPENCORES_ETHMAC,
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ambapp_find_by_idx, NULL);
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if (!adev) {
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adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_AHB_SLVS),
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VENDOR_GAISLER, GAISLER_ETHAHB,
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ambapp_find_by_idx, NULL);
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}
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if (adev)
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{
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ahb = DEV_TO_AHB(adev);
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base_addr = ahb->start[0];
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eth_irq = ahb->irq;
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/* clear control register and reset NIC */
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*(volatile int *) base_addr = 0;
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*(volatile int *) base_addr = 0x800;
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*(volatile int *) base_addr = 0;
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leon_open_eth_configuration.base_address = (void *) base_addr;
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leon_open_eth_configuration.vector = eth_irq + 0x10;
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leon_open_eth_configuration.txd_count = TDA_COUNT;
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leon_open_eth_configuration.rxd_count = RDA_COUNT;
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/* enable 100 MHz operation only if cpu frequency >= 50 MHz */
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if (LEON3_Timer_Regs->scaler_reload >= 49)
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leon_open_eth_configuration.en100MHz = 1;
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if (rtems_open_eth_driver_attach( config, &leon_open_eth_configuration )) {
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LEON_Clear_interrupt(eth_irq);
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LEON_Unmask_interrupt(eth_irq);
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}
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}
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return 0;
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}
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