[MIPS] RM: Collected changes
[linux-2.6.git] / arch / mips / sni / setup.c
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
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
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
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
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         isa_slot_offset = CKSEG1ADDR(0xb0000000);
120 #ifdef CONFIG_EISA
121         EISA_bus = 1;
122 #endif
123
124         sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
125         cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
126         switch (sni_brd_type) {
127         case SNI_BRD_TOWER_OASIC:
128                 switch (cputype) {
129                 case SNI_CPU_M8030:
130                         system_type = "RM400-330";
131                         break;
132                 case SNI_CPU_M8031:
133                         system_type = "RM400-430";
134                         break;
135                 case SNI_CPU_M8037:
136                         system_type = "RM400-530";
137                         break;
138                 case SNI_CPU_M8034:
139                         system_type = "RM400-730";
140                         break;
141                 default:
142                         system_type = "RM400-xxx";
143                         break;
144                 }
145                 break;
146         case SNI_BRD_MINITOWER:
147                 switch (cputype) {
148                 case SNI_CPU_M8021:
149                 case SNI_CPU_M8043:
150                         system_type = "RM400-120";
151                         break;
152                 case SNI_CPU_M8040:
153                         system_type = "RM400-220";
154                         break;
155                 case SNI_CPU_M8053:
156                         system_type = "RM400-225";
157                         break;
158                 case SNI_CPU_M8050:
159                         system_type = "RM400-420";
160                         break;
161                 default:
162                         system_type = "RM400-xxx";
163                         break;
164                 }
165                 break;
166         case SNI_BRD_PCI_TOWER:
167                 system_type = "RM400-Cxx";
168                 break;
169         case SNI_BRD_RM200:
170                 system_type = "RM200-xxx";
171                 break;
172         case SNI_BRD_PCI_MTOWER:
173                 system_type = "RM300-Cxx";
174                 break;
175         case SNI_BRD_PCI_DESKTOP:
176                 switch (read_c0_prid() & 0xff00) {
177                 case PRID_IMP_R4600:
178                 case PRID_IMP_R4700:
179                         system_type = "RM200-C20";
180                         break;
181                 case PRID_IMP_R5000:
182                         system_type = "RM200-C40";
183                         break;
184                 default:
185                         system_type = "RM200-Cxx";
186                         break;
187                 }
188                 break;
189         case SNI_BRD_PCI_TOWER_CPLUS:
190                 system_type = "RM400-Exx";
191                 break;
192         case SNI_BRD_PCI_MTOWER_CPLUS:
193                 system_type = "RM300-Exx";
194                 break;
195         }
196         pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
197
198 #ifdef DEBUG
199         sni_idprom_dump();
200 #endif
201
202         switch (sni_brd_type) {
203         case SNI_BRD_10:
204         case SNI_BRD_10NEW:
205         case SNI_BRD_TOWER_OASIC:
206         case SNI_BRD_MINITOWER:
207                 sni_a20r_init();
208                 break;
209
210         case SNI_BRD_PCI_TOWER:
211         case SNI_BRD_PCI_TOWER_CPLUS:
212                 sni_pcit_init();
213                 break;
214
215         case SNI_BRD_RM200:
216                 sni_rm200_init();
217                 break;
218
219         case SNI_BRD_PCI_MTOWER:
220         case SNI_BRD_PCI_DESKTOP:
221         case SNI_BRD_PCI_MTOWER_CPLUS:
222                 sni_pcimt_init();
223                 break;
224         }
225
226         _machine_restart = sni_machine_restart;
227         pm_power_off = sni_machine_power_off;
228
229         sni_display_setup();
230         sni_console_setup();
231 }
232
233 #ifdef CONFIG_PCI
234
235 #include <linux/pci.h>
236 #include <video/vga.h>
237 #include <video/cirrus.h>
238
239 static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
240 {
241         u16 cmd;
242
243         /*
244          * firmware doesn't set the ram size correct, so we
245          * need to do it here, otherwise we get screen corruption
246          * on older Cirrus chips
247          */
248         pci_read_config_word(dev, PCI_COMMAND, &cmd);
249         if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
250                 == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
251                 vga_wseq(NULL, CL_SEQR6, 0x12); /* unlock all extension registers */
252                 vga_wseq(NULL, CL_SEQRF, 0x18);
253         }
254 }
255
256 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
257                         quirk_cirrus_ram_size);
258 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
259                         quirk_cirrus_ram_size);
260 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
261                         quirk_cirrus_ram_size);
262 #endif