1 /*
2 * Setup pointers to hardware-dependent routines.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
9 * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
10 */
11 #include <linux/eisa.h>
12 #include <linux/init.h>
13 #include <linux/export.h>
14 #include <linux/console.h>
15 #include <linux/screen_info.h>
16
17 #ifdef CONFIG_FW_ARC
18 #include <asm/fw/arc/types.h>
19 #include <asm/sgialib.h>
20 #endif
21
22 #ifdef CONFIG_FW_SNIPROM
23 #include <asm/mipsprom.h>
24 #endif
25
26 #include <asm/bootinfo.h>
27 #include <asm/cpu.h>
28 #include <asm/io.h>
29 #include <asm/reboot.h>
30 #include <asm/sni.h>
31
32 unsigned int sni_brd_type;
33 EXPORT_SYMBOL(sni_brd_type);
34
35 extern void sni_machine_restart(char *command);
36 extern void sni_machine_power_off(void);
37
sni_display_setup(void)38 static void __init sni_display_setup(void)
39 {
40 #if defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_FW_ARC)
41 static struct screen_info si;
42 DISPLAY_STATUS *di;
43
44 di = ArcGetDisplayStatus(1);
45
46 if (di) {
47 si.orig_x = di->CursorXPosition;
48 si.orig_y = di->CursorYPosition;
49 si.orig_video_cols = di->CursorMaxXPosition;
50 si.orig_video_lines = di->CursorMaxYPosition;
51 si.orig_video_isVGA = VIDEO_TYPE_VGAC;
52 si.orig_video_points = 16;
53
54 vgacon_register_screen(&si);
55 }
56 #endif
57 }
58
sni_console_setup(void)59 static void __init sni_console_setup(void)
60 {
61 #ifndef CONFIG_FW_ARC
62 char *ctype;
63 char *cdev;
64 char *baud;
65 int port;
66 static char options[8] __initdata;
67
68 cdev = prom_getenv("console_dev");
69 if (strncmp(cdev, "tty", 3) == 0) {
70 ctype = prom_getenv("console");
71 switch (*ctype) {
72 default:
73 case 'l':
74 port = 0;
75 baud = prom_getenv("lbaud");
76 break;
77 case 'r':
78 port = 1;
79 baud = prom_getenv("rbaud");
80 break;
81 }
82 if (baud)
83 strcpy(options, baud);
84 if (strncmp(cdev, "tty552", 6) == 0)
85 add_preferred_console("ttyS", port,
86 baud ? options : NULL);
87 else
88 add_preferred_console("ttySC", port,
89 baud ? options : NULL);
90 }
91 #endif
92 }
93
94 #ifdef DEBUG
sni_idprom_dump(void)95 static void __init sni_idprom_dump(void)
96 {
97 int i;
98
99 pr_debug("SNI IDProm dump:\n");
100 for (i = 0; i < 256; i++) {
101 if (i%16 == 0)
102 pr_debug("%04x ", i);
103
104 printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
105
106 if (i % 16 == 15)
107 printk("\n");
108 }
109 }
110 #endif
111
plat_mem_setup(void)112 void __init plat_mem_setup(void)
113 {
114 int cputype;
115
116 set_io_port_base(SNI_PORT_BASE);
117 // ioport_resource.end = sni_io_resource.end;
118
119 /*
120 * Setup (E)ISA I/O memory access stuff
121 */
122 #ifdef CONFIG_EISA
123 EISA_bus = 1;
124 #endif
125
126 sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
127 cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
128 switch (sni_brd_type) {
129 case SNI_BRD_TOWER_OASIC:
130 switch (cputype) {
131 case SNI_CPU_M8030:
132 system_type = "RM400-330";
133 break;
134 case SNI_CPU_M8031:
135 system_type = "RM400-430";
136 break;
137 case SNI_CPU_M8037:
138 system_type = "RM400-530";
139 break;
140 case SNI_CPU_M8034:
141 system_type = "RM400-730";
142 break;
143 default:
144 system_type = "RM400-xxx";
145 break;
146 }
147 break;
148 case SNI_BRD_MINITOWER:
149 switch (cputype) {
150 case SNI_CPU_M8021:
151 case SNI_CPU_M8043:
152 system_type = "RM400-120";
153 break;
154 case SNI_CPU_M8040:
155 system_type = "RM400-220";
156 break;
157 case SNI_CPU_M8053:
158 system_type = "RM400-225";
159 break;
160 case SNI_CPU_M8050:
161 system_type = "RM400-420";
162 break;
163 default:
164 system_type = "RM400-xxx";
165 break;
166 }
167 break;
168 case SNI_BRD_PCI_TOWER:
169 system_type = "RM400-Cxx";
170 break;
171 case SNI_BRD_RM200:
172 system_type = "RM200-xxx";
173 break;
174 case SNI_BRD_PCI_MTOWER:
175 system_type = "RM300-Cxx";
176 break;
177 case SNI_BRD_PCI_DESKTOP:
178 switch (read_c0_prid() & PRID_IMP_MASK) {
179 case PRID_IMP_R4600:
180 case PRID_IMP_R4700:
181 system_type = "RM200-C20";
182 break;
183 case PRID_IMP_R5000:
184 system_type = "RM200-C40";
185 break;
186 default:
187 system_type = "RM200-Cxx";
188 break;
189 }
190 break;
191 case SNI_BRD_PCI_TOWER_CPLUS:
192 system_type = "RM400-Exx";
193 break;
194 case SNI_BRD_PCI_MTOWER_CPLUS:
195 system_type = "RM300-Exx";
196 break;
197 }
198 pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
199
200 #ifdef DEBUG
201 sni_idprom_dump();
202 #endif
203
204 switch (sni_brd_type) {
205 case SNI_BRD_10:
206 case SNI_BRD_10NEW:
207 case SNI_BRD_TOWER_OASIC:
208 case SNI_BRD_MINITOWER:
209 sni_a20r_init();
210 break;
211
212 case SNI_BRD_PCI_TOWER:
213 case SNI_BRD_PCI_TOWER_CPLUS:
214 sni_pcit_init();
215 break;
216
217 case SNI_BRD_RM200:
218 sni_rm200_init();
219 break;
220
221 case SNI_BRD_PCI_MTOWER:
222 case SNI_BRD_PCI_DESKTOP:
223 case SNI_BRD_PCI_MTOWER_CPLUS:
224 sni_pcimt_init();
225 break;
226 }
227
228 _machine_restart = sni_machine_restart;
229 pm_power_off = sni_machine_power_off;
230
231 sni_display_setup();
232 sni_console_setup();
233 }
234
235 #ifdef CONFIG_PCI
236
237 #include <linux/pci.h>
238 #include <video/vga.h>
239 #include <video/cirrus.h>
240
quirk_cirrus_ram_size(struct pci_dev * dev)241 static void quirk_cirrus_ram_size(struct pci_dev *dev)
242 {
243 u16 cmd;
244
245 /*
246 * firmware doesn't set the ram size correct, so we
247 * need to do it here, otherwise we get screen corruption
248 * on older Cirrus chips
249 */
250 pci_read_config_word(dev, PCI_COMMAND, &cmd);
251 if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
252 == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
253 vga_wseq(NULL, CL_SEQR6, 0x12); /* unlock all extension registers */
254 vga_wseq(NULL, CL_SEQRF, 0x18);
255 }
256 }
257
258 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
259 quirk_cirrus_ram_size);
260 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
261 quirk_cirrus_ram_size);
262 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
263 quirk_cirrus_ram_size);
264 #endif
265