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 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 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 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 111 112 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> 240 241 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