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] __initdata; 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 #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> 237 238 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