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skrzyp |
//==========================================================================
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//
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// if_aki3068net.c
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//
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// Ethernet device driver for Akizuki H8/3068 Netwotk micom
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//
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//==========================================================================
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// ####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later
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// version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with eCos; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// As a special exception, if other files instantiate templates or use
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// macros or inline functions from this file, or you compile this file
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// and link it with other works to produce a work based on this file,
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// this file does not by itself cause the resulting work to be covered by
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// the GNU General Public License. However the source code for this file
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// must still be made available in accordance with section (3) of the GNU
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// General Public License v2.
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//
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// This exception does not invalidate any other reasons why a work based
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// on this file might be covered by the GNU General Public License.
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// -------------------------------------------
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// ####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s):
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// Contributors:
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// Date:
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// Purpose:
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// Description:
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//
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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#include <pkgconf/system.h>
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#include <pkgconf/io_eth_drivers.h>
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#include <cyg/infra/cyg_type.h>
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#include <cyg/hal/hal_arch.h>
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#include <cyg/infra/diag.h>
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#include <cyg/hal/drv_api.h>
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#include <cyg/io/eth/eth_drv.h>
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#include <cyg/io/eth/netdev.h>
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#define DP_CARD_RESET 0x1f
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#include <cyg/io/dp83902a.h>
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void ns_dp83902a_plf_init(dp83902a_priv_data_t *dp)
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{
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static struct {
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unsigned short offset;
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unsigned short data;
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} init_data[] = {
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{DP_DCR, 0x48}, // Bytewide access
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{DP_RBCH, 0}, // Remote byte count
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{DP_RBCL, 0},
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{DP_ISR, 0xFF}, // Clear any pending interrupts
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{DP_IMR, 0x00}, // Mask all interrupts
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{DP_RCR, 0x20}, // Monitor
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{DP_TCR, 0x02}, // loopback
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{DP_RBCH, 32}, // Remote byte count
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{DP_RBCL, 0},
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{DP_RSAL, 0}, // Remote address
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{DP_RSAH, 0},
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{DP_CR, DP_CR_START|DP_CR_RDMA} // Read data
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};
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unsigned char prom[32];
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int cnt,tmp;
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HAL_READ_UINT8(dp->base+DP_CARD_RESET, tmp);
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HAL_WRITE_UINT8(dp->base+DP_CARD_RESET, tmp);
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dp->data = dp->base+DP_DATAPORT;
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// Wait for card
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do {
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int cnt;
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DP_IN(dp->base, DP_ISR, tmp);
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for (cnt=0; cnt< 1024; cnt++);
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} while (0 == (tmp & DP_ISR_RESET));
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if (dp->hardwired_esa)
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return ;
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for (cnt=0; cnt<sizeof(init_data)/sizeof(init_data[0]); cnt++)
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DP_OUT(dp->base, init_data[cnt].offset, init_data[cnt].data);
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for (cnt = 0; cnt < 32; cnt++)
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DP_IN_DATA(dp->data, prom[cnt]);
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if ((prom[0] == 0xff) && (prom[2] == 0xff) && (prom[4] == 0xff)) {
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dp->base = 0;
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return ;
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}
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DP_OUT(dp->base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1);
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for (cnt = 0; cnt < 6; cnt ++) {
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DP_OUT(dp->base, DP_P1_PAR0+cnt, prom[cnt*2]);
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}
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}
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