xref: /openbmc/linux/drivers/net/Space.c (revision e3d786a3)
1 /*
2  * INET		An implementation of the TCP/IP protocol suite for the LINUX
3  *		operating system.  INET is implemented using the  BSD Socket
4  *		interface as the means of communication with the user level.
5  *
6  *		Holds initial configuration information for devices.
7  *
8  * Version:	@(#)Space.c	1.0.7	08/12/93
9  *
10  * Authors:	Ross Biro
11  *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12  *		Donald J. Becker, <becker@scyld.com>
13  *
14  * Changelog:
15  *		Stephen Hemminger (09/2003)
16  *		- get rid of pre-linked dev list, dynamic device allocation
17  *		Paul Gortmaker (03/2002)
18  *		- struct init cleanup, enable multiple ISA autoprobes.
19  *		Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 09/1999
20  *		- fix sbni: s/device/net_device/
21  *		Paul Gortmaker (06/98):
22  *		 - sort probes in a sane way, make sure all (safe) probes
23  *		   get run once & failed autoprobes don't autoprobe again.
24  *
25  *		This program is free software; you can redistribute it and/or
26  *		modify it under the terms of the GNU General Public License
27  *		as published by the Free Software Foundation; either version
28  *		2 of the License, or (at your option) any later version.
29  */
30 #include <linux/netdevice.h>
31 #include <linux/etherdevice.h>
32 #include <linux/errno.h>
33 #include <linux/init.h>
34 #include <linux/netlink.h>
35 #include <net/Space.h>
36 
37 /* A unified ethernet device probe.  This is the easiest way to have every
38  * ethernet adaptor have the name "eth[0123...]".
39  */
40 
41 struct devprobe2 {
42 	struct net_device *(*probe)(int unit);
43 	int status;	/* non-zero if autoprobe has failed */
44 };
45 
46 static int __init probe_list2(int unit, struct devprobe2 *p, int autoprobe)
47 {
48 	struct net_device *dev;
49 
50 	for (; p->probe; p++) {
51 		if (autoprobe && p->status)
52 			continue;
53 		dev = p->probe(unit);
54 		if (!IS_ERR(dev))
55 			return 0;
56 		if (autoprobe)
57 			p->status = PTR_ERR(dev);
58 	}
59 	return -ENODEV;
60 }
61 
62 /* ISA probes that touch addresses < 0x400 (including those that also
63  * look for EISA/PCI cards in addition to ISA cards).
64  */
65 static struct devprobe2 isa_probes[] __initdata = {
66 #if defined(CONFIG_HP100) && defined(CONFIG_ISA)	/* ISA, EISA */
67 	{hp100_probe, 0},
68 #endif
69 #ifdef CONFIG_3C515
70 	{tc515_probe, 0},
71 #endif
72 #ifdef CONFIG_ULTRA
73 	{ultra_probe, 0},
74 #endif
75 #ifdef CONFIG_WD80x3
76 	{wd_probe, 0},
77 #endif
78 #if defined(CONFIG_NE2000) /* ISA (use ne2k-pci for PCI cards) */
79 	{ne_probe, 0},
80 #endif
81 #ifdef CONFIG_LANCE		/* ISA/VLB (use pcnet32 for PCI cards) */
82 	{lance_probe, 0},
83 #endif
84 #ifdef CONFIG_SMC9194
85 	{smc_init, 0},
86 #endif
87 #ifdef CONFIG_CS89x0
88 #ifndef CONFIG_CS89x0_PLATFORM
89 	{cs89x0_probe, 0},
90 #endif
91 #endif
92 #if defined(CONFIG_MVME16x_NET) || defined(CONFIG_BVME6000_NET)	/* Intel */
93 	{i82596_probe, 0},					/* I82596 */
94 #endif
95 #ifdef CONFIG_NI65
96 	{ni65_probe, 0},
97 #endif
98 	{NULL, 0},
99 };
100 
101 static struct devprobe2 m68k_probes[] __initdata = {
102 #ifdef CONFIG_ATARILANCE	/* Lance-based Atari ethernet boards */
103 	{atarilance_probe, 0},
104 #endif
105 #ifdef CONFIG_SUN3LANCE         /* sun3 onboard Lance chip */
106 	{sun3lance_probe, 0},
107 #endif
108 #ifdef CONFIG_SUN3_82586        /* sun3 onboard Intel 82586 chip */
109 	{sun3_82586_probe, 0},
110 #endif
111 #ifdef CONFIG_APNE		/* A1200 PCMCIA NE2000 */
112 	{apne_probe, 0},
113 #endif
114 #ifdef CONFIG_MVME147_NET	/* MVME147 internal Ethernet */
115 	{mvme147lance_probe, 0},
116 #endif
117 	{NULL, 0},
118 };
119 
120 /* Unified ethernet device probe, segmented per architecture and
121  * per bus interface. This drives the legacy devices only for now.
122  */
123 
124 static void __init ethif_probe2(int unit)
125 {
126 	unsigned long base_addr = netdev_boot_base("eth", unit);
127 
128 	if (base_addr == 1)
129 		return;
130 
131 	(void)(probe_list2(unit, m68k_probes, base_addr == 0) &&
132 		probe_list2(unit, isa_probes, base_addr == 0));
133 }
134 
135 /*  Statically configured drivers -- order matters here. */
136 static int __init net_olddevs_init(void)
137 {
138 	int num;
139 
140 #ifdef CONFIG_SBNI
141 	for (num = 0; num < 8; ++num)
142 		sbni_probe(num);
143 #endif
144 	for (num = 0; num < 8; ++num)
145 		ethif_probe2(num);
146 
147 #ifdef CONFIG_COPS
148 	cops_probe(0);
149 	cops_probe(1);
150 	cops_probe(2);
151 #endif
152 #ifdef CONFIG_LTPC
153 	ltpc_probe();
154 #endif
155 
156 	return 0;
157 }
158 
159 device_initcall(net_olddevs_init);
160