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