arch/mips/include/asm/jazz.h

   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 */