1 /* 2 Ported to U-Boot by Christian Pellegrin <chri@ascensit.com> 3 4 Based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and 5 eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world 6 are GPL, so this is, of course, GPL. 7 8 9 ========================================================================== 10 11 dev/dp83902a.h 12 13 National Semiconductor DP83902a ethernet chip 14 15 ========================================================================== 16 ####ECOSGPLCOPYRIGHTBEGIN#### 17 ------------------------------------------- 18 This file is part of eCos, the Embedded Configurable Operating System. 19 Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. 20 21 eCos is free software; you can redistribute it and/or modify it under 22 the terms of the GNU General Public License as published by the Free 23 Software Foundation; either version 2 or (at your option) any later version. 24 25 eCos is distributed in the hope that it will be useful, but WITHOUT ANY 26 WARRANTY; without even the implied warranty of MERCHANTABILITY or 27 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 28 for more details. 29 30 You should have received a copy of the GNU General Public License along 31 with eCos; if not, write to the Free Software Foundation, Inc., 32 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. 33 34 As a special exception, if other files instantiate templates or use macros 35 or inline functions from this file, or you compile this file and link it 36 with other works to produce a work based on this file, this file does not 37 by itself cause the resulting work to be covered by the GNU General Public 38 License. However the source code for this file must still be made available 39 in accordance with section (3) of the GNU General Public License. 40 41 This exception does not invalidate any other reasons why a work based on 42 this file might be covered by the GNU General Public License. 43 44 Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. 45 at http://sources.redhat.com/ecos/ecos-license/ 46 ------------------------------------------- 47 ####ECOSGPLCOPYRIGHTEND#### 48 ####BSDCOPYRIGHTBEGIN#### 49 50 ------------------------------------------- 51 52 Portions of this software may have been derived from OpenBSD or other sources, 53 and are covered by the appropriate copyright disclaimers included herein. 54 55 ------------------------------------------- 56 57 ####BSDCOPYRIGHTEND#### 58 ========================================================================== 59 #####DESCRIPTIONBEGIN#### 60 61 Author(s): gthomas 62 Contributors: gthomas, jskov 63 Date: 2001-06-13 64 Purpose: 65 Description: 66 67 ####DESCRIPTIONEND#### 68 69 ========================================================================== 70 71 */ 72 73 /* 74 * NE2000 support header file. 75 * Created by Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 76 */ 77 78 #ifndef __DRIVERS_NE2000_H__ 79 #define __DRIVERS_NE2000_H__ 80 81 /* Enable NE2000 basic init function */ 82 #define NE2000_BASIC_INIT 83 84 #define DP_DATA 0x10 85 #define START_PG 0x50 /* First page of TX buffer */ 86 #define STOP_PG 0x80 /* Last page +1 of RX ring */ 87 88 #define RX_START 0x50 89 #define RX_END 0x80 90 91 #define DP_IN(_b_, _o_, _d_) (_d_) = *( (vu_char *) ((_b_)+(_o_))) 92 #define DP_OUT(_b_, _o_, _d_) *( (vu_char *) ((_b_)+(_o_))) = (_d_) 93 #define DP_IN_DATA(_b_, _d_) (_d_) = *( (vu_char *) ((_b_))) 94 #define DP_OUT_DATA(_b_, _d_) *( (vu_char *) ((_b_))) = (_d_) 95 96 static void pcnet_reset_8390(void) 97 { 98 int i, r; 99 100 PRINTK("nic base is %lx\n", nic_base); 101 102 n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD); 103 PRINTK("cmd (at %lx) is %x\n", nic_base+ E8390_CMD, n2k_inb(E8390_CMD)); 104 n2k_outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, E8390_CMD); 105 PRINTK("cmd (at %lx) is %x\n", nic_base+ E8390_CMD, n2k_inb(E8390_CMD)); 106 n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD); 107 PRINTK("cmd (at %lx) is %x\n", nic_base+ E8390_CMD, n2k_inb(E8390_CMD)); 108 n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD); 109 110 n2k_outb(n2k_inb(PCNET_RESET), PCNET_RESET); 111 112 for (i = 0; i < 100; i++) { 113 if ((r = (n2k_inb(EN0_ISR) & ENISR_RESET)) != 0) 114 break; 115 PRINTK("got %x in reset\n", r); 116 udelay(100); 117 } 118 n2k_outb(ENISR_RESET, EN0_ISR); /* Ack intr. */ 119 120 if (i == 100) 121 printf("pcnet_reset_8390() did not complete.\n"); 122 } /* pcnet_reset_8390 */ 123 124 int get_prom(u8* mac_addr) 125 { 126 u8 prom[32]; 127 int i, j; 128 struct { 129 u_char value, offset; 130 } program_seq[] = { 131 {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ 132 {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ 133 {0x00, EN0_RCNTLO}, /* Clear the count regs. */ 134 {0x00, EN0_RCNTHI}, 135 {0x00, EN0_IMR}, /* Mask completion irq. */ 136 {0xFF, EN0_ISR}, 137 {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ 138 {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ 139 {32, EN0_RCNTLO}, 140 {0x00, EN0_RCNTHI}, 141 {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ 142 {0x00, EN0_RSARHI}, 143 {E8390_RREAD+E8390_START, E8390_CMD}, 144 }; 145 146 PRINTK("trying to get MAC via prom reading\n"); 147 148 pcnet_reset_8390(); 149 150 mdelay(10); 151 152 for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++) 153 n2k_outb(program_seq[i].value, program_seq[i].offset); 154 155 PRINTK("PROM:"); 156 for (i = 0; i < 32; i++) { 157 prom[i] = n2k_inb(PCNET_DATAPORT); 158 PRINTK(" %02x", prom[i]); 159 } 160 PRINTK("\n"); 161 for (i = 0; i < NR_INFO; i++) { 162 if ((prom[0] == hw_info[i].a0) && 163 (prom[2] == hw_info[i].a1) && 164 (prom[4] == hw_info[i].a2)) { 165 PRINTK("matched board %d\n", i); 166 break; 167 } 168 } 169 if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) { 170 PRINTK("on exit i is %d/%ld\n", i, NR_INFO); 171 PRINTK("MAC address is "); 172 for (j = 0; j < 6; j++){ 173 mac_addr[j] = prom[j<<1]; 174 PRINTK("%02x:",mac_addr[i]); 175 } 176 PRINTK("\n"); 177 return (i < NR_INFO) ? i : 0; 178 } 179 return NULL; 180 } 181 182 183 #endif /* __DRIVERS_NE2000_H__ */ 184