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/console.h>
14 #include <linux/fb.h>
15 #include <linux/screen_info.h>
16
17 #ifdef CONFIG_ARC
18 #include <asm/fw/arc/types.h>
19 #include <asm/sgialib.h>
20 #endif
21
22 #ifdef CONFIG_SNIPROM
23 #include <asm/mipsprom.h>
24 #endif
25
26 #include <asm/bootinfo.h>
27 #include <asm/io.h>
28 #include <asm/reboot.h>
29 #include <asm/sni.h>
30
31 unsigned int sni_brd_type;
32 EXPORT_SYMBOL(sni_brd_type);
33
34 extern void sni_machine_restart(char *command);
35 extern void sni_machine_power_off(void);
36
sni_display_setup(void)37 static void __init sni_display_setup(void)
38 {
39 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
40 struct screen_info *si = &screen_info;
41 DISPLAY_STATUS *di;
42
43 di = ArcGetDisplayStatus(1);
44
45 if (di) {
46 si->orig_x = di->CursorXPosition;
47 si->orig_y = di->CursorYPosition;
48 si->orig_video_cols = di->CursorMaxXPosition;
49 si->orig_video_lines = di->CursorMaxYPosition;
50 si->orig_video_isVGA = VIDEO_TYPE_VGAC;
51 si->orig_video_points = 16;
52 }
53 #endif
54 }
55
sni_console_setup(void)56 static void __init sni_console_setup(void)
57 {
58 #ifndef CONFIG_ARC
59 char *ctype;
60 char *cdev;
61 char *baud;
62 int port;
63 static char options[8];
64
65 cdev = prom_getenv("console_dev");
66 if (strncmp(cdev, "tty", 3) == 0) {
67 ctype = prom_getenv("console");
68 switch (*ctype) {
69 default:
70 case 'l':
71 port = 0;
72 baud = prom_getenv("lbaud");
73 break;
74 case 'r':
75 port = 1;
76 baud = prom_getenv("rbaud");
77 break;
78 }
79 if (baud)
80 strcpy(options, baud);
81 if (strncmp(cdev, "tty552", 6) == 0)
82 add_preferred_console("ttyS", port,
83 baud ? options : NULL);
84 else
85 add_preferred_console("ttySC", port,
86 baud ? options : NULL);
87 }
88 #endif
89 }
90
91 #ifdef DEBUG
sni_idprom_dump(void)92 static void __init sni_idprom_dump(void)
93 {
94 int i;
95
96 pr_debug("SNI IDProm dump:\n");
97 for (i = 0; i < 256; i++) {
98 if (i%16 == 0)
99 pr_debug("%04x ", i);
100
101 printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
102
103 if (i % 16 == 15)
104 printk("\n");
105 }
106 }
107 #endif
108
plat_mem_setup(void)109 void __init plat_mem_setup(void)
110 {
111 int cputype;
112
113 set_io_port_base(SNI_PORT_BASE);
114 // ioport_resource.end = sni_io_resource.end;
115
116 /*
117 * Setup (E)ISA I/O memory access stuff
118 */
119 #ifdef CONFIG_EISA
120 EISA_bus = 1;
121 #endif
122
123 sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
124 cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
125 switch (sni_brd_type) {
126 case SNI_BRD_TOWER_OASIC:
127 switch (cputype) {
128 case SNI_CPU_M8030:
129 system_type = "RM400-330";
130 break;
131 case SNI_CPU_M8031:
132 system_type = "RM400-430";
133 break;
134 case SNI_CPU_M8037:
135 system_type = "RM400-530";
136 break;
137 case SNI_CPU_M8034:
138 system_type = "RM400-730";
139 break;
140 default:
141 system_type = "RM400-xxx";
142 break;
143 }
144 break;
145 case SNI_BRD_MINITOWER:
146 switch (cputype) {
147 case SNI_CPU_M8021:
148 case SNI_CPU_M8043:
149 system_type = "RM400-120";
150 break;
151 case SNI_CPU_M8040:
152 system_type = "RM400-220";
153 break;
154 case SNI_CPU_M8053:
155 system_type = "RM400-225";
156 break;
157 case SNI_CPU_M8050:
158 system_type = "RM400-420";
159 break;
160 default:
161 system_type = "RM400-xxx";
162 break;
163 }
164 break;
165 case SNI_BRD_PCI_TOWER:
166 system_type = "RM400-Cxx";
167 break;
168 case SNI_BRD_RM200:
169 system_type = "RM200-xxx";
170 break;
171 case SNI_BRD_PCI_MTOWER:
172 system_type = "RM300-Cxx";
173 break;
174 case SNI_BRD_PCI_DESKTOP:
175 switch (read_c0_prid() & 0xff00) {
176 case PRID_IMP_R4600:
177 case PRID_IMP_R4700:
178 system_type = "RM200-C20";
179 break;
180 case PRID_IMP_R5000:
181 system_type = "RM200-C40";
182 break;
183 default:
184 system_type = "RM200-Cxx";
185 break;
186 }
187 break;
188 case SNI_BRD_PCI_TOWER_CPLUS:
189 system_type = "RM400-Exx";
190 break;
191 case SNI_BRD_PCI_MTOWER_CPLUS:
192 system_type = "RM300-Exx";
193 break;
194 }
195 pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
196
197 #ifdef DEBUG
198 sni_idprom_dump();
199 #endif
200
201 switch (sni_brd_type) {
202 case SNI_BRD_10:
203 case SNI_BRD_10NEW:
204 case SNI_BRD_TOWER_OASIC:
205 case SNI_BRD_MINITOWER:
206 sni_a20r_init();
207 break;
208
209 case SNI_BRD_PCI_TOWER:
210 case SNI_BRD_PCI_TOWER_CPLUS:
211 sni_pcit_init();
212 break;
213
214 case SNI_BRD_RM200:
215 sni_rm200_init();
216 break;
217
218 case SNI_BRD_PCI_MTOWER:
219 case SNI_BRD_PCI_DESKTOP:
220 case SNI_BRD_PCI_MTOWER_CPLUS:
221 sni_pcimt_init();
222 break;
223 }
224
225 _machine_restart = sni_machine_restart;
226 pm_power_off = sni_machine_power_off;
227
228 sni_display_setup();
229 sni_console_setup();
230 }
231
232 #ifdef CONFIG_PCI
233
234 #include <linux/pci.h>
235 #include <video/vga.h>
236 #include <video/cirrus.h>
237
quirk_cirrus_ram_size(struct pci_dev * dev)238 static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
239 {
240 u16 cmd;
241
242 /*
243 * firmware doesn't set the ram size correct, so we
244 * need to do it here, otherwise we get screen corruption
245 * on older Cirrus chips
246 */
247 pci_read_config_word(dev, PCI_COMMAND, &cmd);
248 if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
249 == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
250 vga_wseq(NULL, CL_SEQR6, 0x12); /* unlock all extension registers */
251 vga_wseq(NULL, CL_SEQRF, 0x18);
252 }
253 }
254
255 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
256 quirk_cirrus_ram_size);
257 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
258 quirk_cirrus_ram_size);
259 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
260 quirk_cirrus_ram_size);
261 #endif
262