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 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 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 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 110 111 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> 239 240 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