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/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_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_FW_ARC) 41 struct screen_info *si = &screen_info; 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 #endif 55 } 56 57 static void __init sni_console_setup(void) 58 { 59 #ifndef CONFIG_FW_ARC 60 char *ctype; 61 char *cdev; 62 char *baud; 63 int port; 64 static char options[8] __initdata; 65 66 cdev = prom_getenv("console_dev"); 67 if (strncmp(cdev, "tty", 3) == 0) { 68 ctype = prom_getenv("console"); 69 switch (*ctype) { 70 default: 71 case 'l': 72 port = 0; 73 baud = prom_getenv("lbaud"); 74 break; 75 case 'r': 76 port = 1; 77 baud = prom_getenv("rbaud"); 78 break; 79 } 80 if (baud) 81 strcpy(options, baud); 82 if (strncmp(cdev, "tty552", 6) == 0) 83 add_preferred_console("ttyS", port, 84 baud ? options : NULL); 85 else 86 add_preferred_console("ttySC", port, 87 baud ? options : NULL); 88 } 89 #endif 90 } 91 92 #ifdef DEBUG 93 static void __init sni_idprom_dump(void) 94 { 95 int i; 96 97 pr_debug("SNI IDProm dump:\n"); 98 for (i = 0; i < 256; i++) { 99 if (i%16 == 0) 100 pr_debug("%04x ", i); 101 102 printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i)); 103 104 if (i % 16 == 15) 105 printk("\n"); 106 } 107 } 108 #endif 109 110 void __init plat_mem_setup(void) 111 { 112 int cputype; 113 114 set_io_port_base(SNI_PORT_BASE); 115 // ioport_resource.end = sni_io_resource.end; 116 117 /* 118 * Setup (E)ISA I/O memory access stuff 119 */ 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 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 263