1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 1995 - 1998 by Andreas Busse and Ralf Baechle 7 */ 8 #ifndef __ASM_JAZZ_H 9 #define __ASM_JAZZ_H 10 11 /* 12 * The addresses below are virtual address. The mappings are 13 * created on startup via wired entries in the tlb. The Mips 14 * Magnum R3000 and R4000 machines are similar in many aspects, 15 * but many hardware register are accessible at 0xb9000000 in 16 * instead of 0xe0000000. 17 */ 18 19 #define JAZZ_LOCAL_IO_SPACE 0xe0000000 20 21 /* 22 * Revision numbers in PICA_ASIC_REVISION 23 * 24 * 0xf0000000 - Rev1 25 * 0xf0000001 - Rev2 26 * 0xf0000002 - Rev3 27 */ 28 #define PICA_ASIC_REVISION 0xe0000008 29 30 /* 31 * The segments of the seven segment LED are mapped 32 * to the control bits as follows: 33 * 34 * (7) 35 * --------- 36 * | | 37 * (2) | | (6) 38 * | (1) | 39 * --------- 40 * | | 41 * (3) | | (5) 42 * | (4) | 43 * --------- . (0) 44 */ 45 #define PICA_LED 0xe000f000 46 47 /* 48 * Some characters for the LED control registers 49 * The original Mips machines seem to have a LED display 50 * with integrated decoder while the Acer machines can 51 * control each of the seven segments and the dot independently. 52 * It's only a toy, anyway... 53 */ 54 #define LED_DOT 0x01 55 #define LED_SPACE 0x00 56 #define LED_0 0xfc 57 #define LED_1 0x60 58 #define LED_2 0xda 59 #define LED_3 0xf2 60 #define LED_4 0x66 61 #define LED_5 0xb6 62 #define LED_6 0xbe 63 #define LED_7 0xe0 64 #define LED_8 0xfe 65 #define LED_9 0xf6 66 #define LED_A 0xee 67 #define LED_b 0x3e 68 #define LED_C 0x9c 69 #define LED_d 0x7a 70 #define LED_E 0x9e 71 #define LED_F 0x8e 72 73 #ifndef __ASSEMBLY__ 74 75 static __inline__ void pica_set_led(unsigned int bits) 76 { 77 volatile unsigned int *led_register = (unsigned int *) PICA_LED; 78 79 *led_register = bits; 80 } 81 82 #endif /* !__ASSEMBLY__ */ 83 84 /* 85 * Base address of the Sonic Ethernet adapter in Jazz machines. 86 */ 87 #define JAZZ_ETHERNET_BASE 0xe0001000 88 89 /* 90 * Base address of the 53C94 SCSI hostadapter in Jazz machines. 91 */ 92 #define JAZZ_SCSI_BASE 0xe0002000 93 94 /* 95 * i8042 keyboard controller for JAZZ and PICA chipsets. 96 * This address is just a guess and seems to differ from 97 * other mips machines such as RC3xxx... 98 */ 99 #define JAZZ_KEYBOARD_ADDRESS 0xe0005000 100 #define JAZZ_KEYBOARD_DATA 0xe0005000 101 #define JAZZ_KEYBOARD_COMMAND 0xe0005001 102 103 #ifndef __ASSEMBLY__ 104 105 typedef struct { 106 unsigned char data; 107 unsigned char command; 108 } jazz_keyboard_hardware; 109 110 #define jazz_kh ((keyboard_hardware *) JAZZ_KEYBOARD_ADDRESS) 111 112 typedef struct { 113 unsigned char pad0[3]; 114 unsigned char data; 115 unsigned char pad1[3]; 116 unsigned char command; 117 } mips_keyboard_hardware; 118 119 /* 120 * For now. Needs to be changed for RC3xxx support. See below. 121 */ 122 #define keyboard_hardware jazz_keyboard_hardware 123 124 #endif /* !__ASSEMBLY__ */ 125 126 /* 127 * i8042 keyboard controller for most other Mips machines. 128 */ 129 #define MIPS_KEYBOARD_ADDRESS 0xb9005000 130 #define MIPS_KEYBOARD_DATA 0xb9005003 131 #define MIPS_KEYBOARD_COMMAND 0xb9005007 132 133 /* 134 * Serial and parallel ports (WD 16C552) on the Mips JAZZ 135 */ 136 #define JAZZ_SERIAL1_BASE (unsigned int)0xe0006000 137 #define JAZZ_SERIAL2_BASE (unsigned int)0xe0007000 138 #define JAZZ_PARALLEL_BASE (unsigned int)0xe0008000 139 140 /* 141 * Dummy Device Address. Used in jazzdma.c 142 */ 143 #define JAZZ_DUMMY_DEVICE 0xe000d000 144 145 /* 146 * JAZZ timer registers and interrupt no. 147 * Note that the hardware timer interrupt is actually on 148 * cpu level 6, but to keep compatibility with PC stuff 149 * it is remapped to vector 0. See arch/mips/kernel/entry.S. 150 */ 151 #define JAZZ_TIMER_INTERVAL 0xe0000228 152 #define JAZZ_TIMER_REGISTER 0xe0000230 153 154 /* 155 * DRAM configuration register 156 */ 157 #ifndef __ASSEMBLY__ 158 #ifdef __MIPSEL__ 159 typedef struct { 160 unsigned int bank2 : 3; 161 unsigned int bank1 : 3; 162 unsigned int mem_bus_width : 1; 163 unsigned int reserved2 : 1; 164 unsigned int page_mode : 1; 165 unsigned int reserved1 : 23; 166 } dram_configuration; 167 #else /* defined (__MIPSEB__) */ 168 typedef struct { 169 unsigned int reserved1 : 23; 170 unsigned int page_mode : 1; 171 unsigned int reserved2 : 1; 172 unsigned int mem_bus_width : 1; 173 unsigned int bank1 : 3; 174 unsigned int bank2 : 3; 175 } dram_configuration; 176 #endif 177 #endif /* !__ASSEMBLY__ */ 178 179 #define PICA_DRAM_CONFIG 0xe00fffe0 180 181 /* 182 * JAZZ interrupt control registers 183 */ 184 #define JAZZ_IO_IRQ_SOURCE 0xe0010000 185 #define JAZZ_IO_IRQ_ENABLE 0xe0010002 186 187 /* 188 * JAZZ Interrupt Level definitions 189 * 190 * This is somewhat broken. For reasons which nobody can remember anymore 191 * we remap the Jazz interrupts to the usual ISA style interrupt numbers. 192 */ 193 #define JAZZ_IRQ_START 24 194 #define JAZZ_IRQ_END (24 + 9) 195 #define JAZZ_PARALLEL_IRQ (JAZZ_IRQ_START + 0) 196 #define JAZZ_FLOPPY_IRQ (JAZZ_IRQ_START + 1) 197 #define JAZZ_SOUND_IRQ (JAZZ_IRQ_START + 2) 198 #define JAZZ_VIDEO_IRQ (JAZZ_IRQ_START + 3) 199 #define JAZZ_ETHERNET_IRQ (JAZZ_IRQ_START + 4) 200 #define JAZZ_SCSI_IRQ (JAZZ_IRQ_START + 5) 201 #define JAZZ_KEYBOARD_IRQ (JAZZ_IRQ_START + 6) 202 #define JAZZ_MOUSE_IRQ (JAZZ_IRQ_START + 7) 203 #define JAZZ_SERIAL1_IRQ (JAZZ_IRQ_START + 8) 204 #define JAZZ_SERIAL2_IRQ (JAZZ_IRQ_START + 9) 205 206 #define JAZZ_TIMER_IRQ (MIPS_CPU_IRQ_BASE+6) 207 208 209 /* 210 * JAZZ DMA Channels 211 * Note: Channels 4...7 are not used with respect to the Acer PICA-61 212 * chipset which does not provide these DMA channels. 213 */ 214 #define JAZZ_SCSI_DMA 0 /* SCSI */ 215 #define JAZZ_FLOPPY_DMA 1 /* FLOPPY */ 216 #define JAZZ_AUDIOL_DMA 2 /* AUDIO L */ 217 #define JAZZ_AUDIOR_DMA 3 /* AUDIO R */ 218 219 /* 220 * JAZZ R4030 MCT_ADR chip (DMA controller) 221 * Note: Virtual Addresses ! 222 */ 223 #define JAZZ_R4030_CONFIG 0xE0000000 /* R4030 config register */ 224 #define JAZZ_R4030_REVISION 0xE0000008 /* same as PICA_ASIC_REVISION */ 225 #define JAZZ_R4030_INV_ADDR 0xE0000010 /* Invalid Address register */ 226 227 #define JAZZ_R4030_TRSTBL_BASE 0xE0000018 /* Translation Table Base */ 228 #define JAZZ_R4030_TRSTBL_LIM 0xE0000020 /* Translation Table Limit */ 229 #define JAZZ_R4030_TRSTBL_INV 0xE0000028 /* Translation Table Invalidate */ 230 231 #define JAZZ_R4030_CACHE_MTNC 0xE0000030 /* Cache Maintenance */ 232 #define JAZZ_R4030_R_FAIL_ADDR 0xE0000038 /* Remote Failed Address */ 233 #define JAZZ_R4030_M_FAIL_ADDR 0xE0000040 /* Memory Failed Address */ 234 235 #define JAZZ_R4030_CACHE_PTAG 0xE0000048 /* I/O Cache Physical Tag */ 236 #define JAZZ_R4030_CACHE_LTAG 0xE0000050 /* I/O Cache Logical Tag */ 237 #define JAZZ_R4030_CACHE_BMASK 0xE0000058 /* I/O Cache Byte Mask */ 238 #define JAZZ_R4030_CACHE_BWIN 0xE0000060 /* I/O Cache Buffer Window */ 239 240 /* 241 * Remote Speed Registers. 242 * 243 * 0: free, 1: Ethernet, 2: SCSI, 3: Floppy, 244 * 4: RTC, 5: Kb./Mouse 6: serial 1, 7: serial 2, 245 * 8: parallel, 9: NVRAM, 10: CPU, 11: PROM, 246 * 12: reserved, 13: free, 14: 7seg LED, 15: ??? 247 */ 248 #define JAZZ_R4030_REM_SPEED 0xE0000070 /* 16 Remote Speed Registers */ 249 /* 0xE0000070,78,80... 0xE00000E8 */ 250 #define JAZZ_R4030_IRQ_ENABLE 0xE00000E8 /* Internal Interrupt Enable */ 251 #define JAZZ_R4030_INVAL_ADDR 0xE0000010 /* Invalid address Register */ 252 #define JAZZ_R4030_IRQ_SOURCE 0xE0000200 /* Interrupt Source Register */ 253 #define JAZZ_R4030_I386_ERROR 0xE0000208 /* i386/EISA Bus Error */ 254 255 /* 256 * Virtual (E)ISA controller address 257 */ 258 #define JAZZ_EISA_IRQ_ACK 0xE0000238 /* EISA interrupt acknowledge */ 259 260 /* 261 * Access the R4030 DMA and I/O Controller 262 */ 263 #ifndef __ASSEMBLY__ 264 265 static inline void r4030_delay(void) 266 { 267 __asm__ __volatile__( 268 ".set\tnoreorder\n\t" 269 "nop\n\t" 270 "nop\n\t" 271 "nop\n\t" 272 "nop\n\t" 273 ".set\treorder"); 274 } 275 276 static inline unsigned short r4030_read_reg16(unsigned long addr) 277 { 278 unsigned short ret = *((volatile unsigned short *)addr); 279 r4030_delay(); 280 return ret; 281 } 282 283 static inline unsigned int r4030_read_reg32(unsigned long addr) 284 { 285 unsigned int ret = *((volatile unsigned int *)addr); 286 r4030_delay(); 287 return ret; 288 } 289 290 static inline void r4030_write_reg16(unsigned long addr, unsigned val) 291 { 292 *((volatile unsigned short *)addr) = val; 293 r4030_delay(); 294 } 295 296 static inline void r4030_write_reg32(unsigned long addr, unsigned val) 297 { 298 *((volatile unsigned int *)addr) = val; 299 r4030_delay(); 300 } 301 302 #endif /* !__ASSEMBLY__ */ 303 304 #define JAZZ_FDC_BASE 0xe0003000 305 #define JAZZ_RTC_BASE 0xe0004000 306 #define JAZZ_PORT_BASE 0xe2000000 307 308 #define JAZZ_EISA_BASE 0xe3000000 309 310 #endif /* __ASM_JAZZ_H */ 311