include/asm-mips/serial.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) 1999 by Ralf Baechle
   7  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
   8  */
   9 #ifndef _ASM_SERIAL_H
  10 #define _ASM_SERIAL_H
  11
  12 #include <linux/config.h>
  13
  14 /*
  15  * This assumes you have a 1.8432 MHz clock for your UART.
  16  *
  17  * It'd be nice if someone built a serial card with a 24.576 MHz
  18  * clock, since the 16550A is capable of handling a top speed of 1.5
  19  * megabits/second; but this requires the faster clock.
  20  */
  21 #define BASE_BAUD (1843200 / 16)
  22
  23 /* Standard COM flags (except for COM4, because of the 8514 problem) */
  24 #ifdef CONFIG_SERIAL_DETECT_IRQ
  25 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
  26 #define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
  27 #else
  28 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
  29 #define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
  30 #endif
  31
  32 #ifdef CONFIG_SERIAL_MANY_PORTS
  33 #define FOURPORT_FLAGS ASYNC_FOURPORT
  34 #define ACCENT_FLAGS 0
  35 #define BOCA_FLAGS 0
  36 #define HUB6_FLAGS 0
  37 #define RS_TABLE_SIZE   64
  38 #else
  39 #define RS_TABLE_SIZE
  40 #endif
  41
  42 /*
  43  * The following define the access methods for the HUB6 card. All
  44  * access is through two ports for all 24 possible chips. The card is
  45  * selected through the high 2 bits, the port on that card with the
  46  * "middle" 3 bits, and the register on that port with the bottom
  47  * 3 bits.
  48  *
  49  * While the access port and interrupt is configurable, the default
  50  * port locations are 0x302 for the port control register, and 0x303
  51  * for the data read/write register. Normally, the interrupt is at irq3
  52  * but can be anything from 3 to 7 inclusive. Note that using 3 will
  53  * require disabling com2.
  54  */
  55
  56 #define C_P(card,port) (((card)<<6|(port)<<3) + 1)
  57
  58 #ifdef CONFIG_MIPS_JAZZ
  59 #include <asm/jazz.h>
  60
  61 #ifndef CONFIG_OLIVETTI_M700
  62    /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
  63       exactly which ones ... XXX */
  64 #define JAZZ_BASE_BAUD ( 8000000 / 16 ) /* ( 3072000 / 16) */
  65 #else
  66 /* but the M700 isn't such a strange beast */
  67 #define JAZZ_BASE_BAUD BASE_BAUD
  68 #endif
  69
  70 #define _JAZZ_SERIAL_INIT(int, base)                                    \
  71         { .baud_base = JAZZ_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS,      \
  72           .iomem_base = (u8 *) base, .iomem_reg_shift = 0,                      \
  73           .io_type = SERIAL_IO_MEM }
  74 #define JAZZ_SERIAL_PORT_DEFNS                                          \
  75         _JAZZ_SERIAL_INIT(JAZZ_SERIAL1_IRQ, JAZZ_SERIAL1_BASE),         \
  76         _JAZZ_SERIAL_INIT(JAZZ_SERIAL2_IRQ, JAZZ_SERIAL2_BASE),
  77 #else
  78 #define JAZZ_SERIAL_PORT_DEFNS
  79 #endif
  80
  81 #ifdef CONFIG_MIPS_COBALT
  82 #include <asm/cobalt/cobalt.h>
  83 #define COBALT_BASE_BAUD  (18432000 / 16)
  84 #define COBALT_SERIAL_PORT_DEFNS                \
  85         /* UART CLK   PORT  IRQ  FLAGS    */            \
  86         { 0, COBALT_BASE_BAUD, 0xc800000, COBALT_SERIAL_IRQ, STD_COM_FLAGS },   /* ttyS0 */
  87 #else
  88 #define COBALT_SERIAL_PORT_DEFNS
  89 #endif
  90
  91 /*
  92  * Both Galileo boards have the same UART mappings.
  93  */
  94 #if defined (CONFIG_MIPS_EV96100) || defined (CONFIG_MIPS_EV64120)
  95 #include <asm/galileo-boards/ev96100.h>
  96 #include <asm/galileo-boards/ev96100int.h>
  97 #define EV96100_SERIAL_PORT_DEFNS                                  \
  98     { .baud_base = EV96100_BASE_BAUD, .irq = EV96100INT_UART_0, \
  99       .flags = STD_COM_FLAGS,  \
 100       .iomem_base = EV96100_UART0_REGS_BASE, .iomem_reg_shift = 2, \
 101       .io_type = SERIAL_IO_MEM }, \
 102     { .baud_base = EV96100_BASE_BAUD, .irq = EV96100INT_UART_0, \
 103       .flags = STD_COM_FLAGS, \
 104       .iomem_base = EV96100_UART1_REGS_BASE, .iomem_reg_shift = 2, \
 105       .io_type = SERIAL_IO_MEM },
 106 #else
 107 #define EV96100_SERIAL_PORT_DEFNS
 108 #endif
 109
 110 #ifdef CONFIG_MIPS_ITE8172
 111 #include <asm/it8172/it8172.h>
 112 #include <asm/it8172/it8172_int.h>
 113 #include <asm/it8712.h>
 114 #define ITE_SERIAL_PORT_DEFNS                                  \
 115     { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_UART_BASE), \
 116       .irq = IT8172_UART_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 }, \
 117     { .baud_base = (24000000/(16*13)), .port = (IT8172_PCI_IO_BASE + IT8712_UART1_PORT), \
 118       .irq = IT8172_SERIRQ_4, .flags = STD_COM_FLAGS, .type = 0x3 }, \
 119     /* Smart Card Reader 0 */ \
 120     { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_SCR0_BASE), \
 121       .irq = IT8172_SCR0_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 }, \
 122     /* Smart Card Reader 1 */ \
 123     { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_SCR1_BASE), \
 124       .irq = IT8172_SCR1_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 },
 125 #else
 126 #define ITE_SERIAL_PORT_DEFNS
 127 #endif
 128
 129 #ifdef CONFIG_MIPS_IVR
 130 #include <asm/it8172/it8172.h>
 131 #include <asm/it8172/it8172_int.h>
 132 #define IVR_SERIAL_PORT_DEFNS                                  \
 133     { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_UART_BASE), \
 134       .irq = IT8172_UART_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 },         \
 135     /* Smart Card Reader 1 */ \
 136     { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_SCR1_BASE), \
 137       .irq = IT8172_SCR1_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 },
 138 #else
 139 #define IVR_SERIAL_PORT_DEFNS
 140 #endif
 141
 142 #ifdef CONFIG_TOSHIBA_JMR3927
 143 #include <asm/jmr3927/jmr3927.h>
 144 #define TXX927_SERIAL_PORT_DEFNS                              \
 145     { .baud_base = JMR3927_BASE_BAUD, .port = UART0_ADDR, .irq = UART0_INT,  \
 146       .flags = UART0_FLAGS, .type = 1 },                        \
 147     { .baud_base = JMR3927_BASE_BAUD, .port = UART1_ADDR, .irq = UART1_INT,  \
 148       .flags = UART1_FLAGS, .type = 1 },
 149 #else
 150 #define TXX927_SERIAL_PORT_DEFNS
 151 #endif
 152
 153 #ifdef CONFIG_SERIAL_AU1X00
 154 #include <asm/mach-au1x00/au1000.h>
 155 #define AU1000_SERIAL_PORT_DEFNS                              \
 156     { .baud_base = 0, .port = UART0_ADDR, .irq = AU1000_UART0_INT,  \
 157       .flags = STD_COM_FLAGS, .type = 1 },                        \
 158     { .baud_base = 0, .port = UART1_ADDR, .irq = AU1000_UART1_INT,  \
 159       .flags = STD_COM_FLAGS, .type = 1 },     \
 160     { .baud_base = 0, .port = UART2_ADDR, .irq = AU1000_UART2_INT,  \
 161       .flags = STD_COM_FLAGS, .type = 1 },    \
 162     { .baud_base = 0, .port = UART3_ADDR, .irq = AU1000_UART3_INT,  \
 163       .flags = STD_COM_FLAGS, .type = 1 },
 164 #else
 165 #define AU1000_SERIAL_PORT_DEFNS
 166 #endif
 167
 168 #ifdef CONFIG_HAVE_STD_PC_SERIAL_PORT
 169 #define STD_SERIAL_PORT_DEFNS                   \
 170         /* UART CLK   PORT IRQ     FLAGS        */                      \
 171         { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },      /* ttyS0 */     \
 172         { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },      /* ttyS1 */     \
 173         { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },      /* ttyS2 */     \
 174         { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },     /* ttyS3 */
 175
 176 #ifdef CONFIG_SERIAL_MANY_PORTS
 177 #define EXTRA_SERIAL_PORT_DEFNS                 \
 178         { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS },     /* ttyS4 */     \
 179         { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS },     /* ttyS5 */     \
 180         { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS },     /* ttyS6 */     \
 181         { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS },     /* ttyS7 */     \
 182         { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS },     /* ttyS8 */     \
 183         { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS },     /* ttyS9 */     \
 184         { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS },     /* ttyS10 */    \
 185         { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS },     /* ttyS11 */    \
 186         { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS },       /* ttyS12 */    \
 187         { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS },       /* ttyS13 */    \
 188         { 0, BASE_BAUD, 0x000, 0, 0 },                  /* ttyS14 (spare) */ \
 189         { 0, BASE_BAUD, 0x000, 0, 0 },                  /* ttyS15 (spare) */ \
 190         { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS },        /* ttyS16 */    \
 191         { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS },        /* ttyS17 */    \
 192         { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS },        /* ttyS18 */    \
 193         { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS },        /* ttyS19 */    \
 194         { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS },        /* ttyS20 */    \
 195         { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS },        /* ttyS21 */    \
 196         { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS },        /* ttyS22 */    \
 197         { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS },        /* ttyS23 */    \
 198         { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS },        /* ttyS24 */    \
 199         { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS },        /* ttyS25 */    \
 200         { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS },        /* ttyS26 */    \
 201         { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS },        /* ttyS27 */    \
 202         { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS },        /* ttyS28 */    \
 203         { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS },        /* ttyS29 */    \
 204         { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS },        /* ttyS30 */    \
 205         { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS },        /* ttyS31 */
 206 #else /* CONFIG_SERIAL_MANY_PORTS */
 207 #define EXTRA_SERIAL_PORT_DEFNS
 208 #endif /* CONFIG_SERIAL_MANY_PORTS */
 209
 210 #else /* CONFIG_HAVE_STD_PC_SERIAL_PORTS */
 211 #define STD_SERIAL_PORT_DEFNS
 212 #define EXTRA_SERIAL_PORT_DEFNS
 213 #endif /* CONFIG_HAVE_STD_PC_SERIAL_PORTS */
 214
 215 /* You can have up to four HUB6's in the system, but I've only
 216  * included two cards here for a total of twelve ports.
 217  */
 218 #if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS))
 219 #define HUB6_SERIAL_PORT_DFNS           \
 220         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) },  /* ttyS32 */ \
 221         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) },  /* ttyS33 */ \
 222         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) },  /* ttyS34 */ \
 223         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) },  /* ttyS35 */ \
 224         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) },  /* ttyS36 */ \
 225         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) },  /* ttyS37 */ \
 226         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) },  /* ttyS38 */ \
 227         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) },  /* ttyS39 */ \
 228         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) },  /* ttyS40 */ \
 229         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) },  /* ttyS41 */ \
 230         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) },  /* ttyS42 */ \
 231         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) },  /* ttyS43 */
 232 #else
 233 #define HUB6_SERIAL_PORT_DFNS
 234 #endif
 235
 236 #ifdef CONFIG_MOMENCO_JAGUAR_ATX
 237 /* Ordinary NS16552 duart with a 20MHz crystal.  */
 238 #define JAGUAR_ATX_UART_CLK     20000000
 239 #define JAGUAR_ATX_BASE_BAUD    (JAGUAR_ATX_UART_CLK / 16)
 240
 241 #define JAGUAR_ATX_SERIAL1_IRQ  6
 242 #define JAGUAR_ATX_SERIAL1_BASE 0xfd000023L
 243
 244 #define _JAGUAR_ATX_SERIAL_INIT(int, base)                              \
 245         { baud_base: JAGUAR_ATX_BASE_BAUD, irq: int,                    \
 246           flags: (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST),               \
 247           iomem_base: (u8 *) base, iomem_reg_shift: 2,                  \
 248           io_type: SERIAL_IO_MEM }
 249 #define MOMENCO_JAGUAR_ATX_SERIAL_PORT_DEFNS                            \
 250         _JAGUAR_ATX_SERIAL_INIT(JAGUAR_ATX_SERIAL1_IRQ, JAGUAR_ATX_SERIAL1_BASE)
 251 #else
 252 #define MOMENCO_JAGUAR_ATX_SERIAL_PORT_DEFNS
 253 #endif
 254
 255 #ifdef CONFIG_MOMENCO_OCELOT
 256 /* Ordinary NS16552 duart with a 20MHz crystal.  */
 257 #define OCELOT_BASE_BAUD ( 20000000 / 16 )
 258
 259 #define OCELOT_SERIAL1_IRQ      4
 260 #define OCELOT_SERIAL1_BASE     0xe0001020
 261
 262 #define _OCELOT_SERIAL_INIT(int, base)                                  \
 263         { .baud_base = OCELOT_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS,    \
 264           .iomem_base = (u8 *) base, .iomem_reg_shift = 2,                      \
 265           .io_type = SERIAL_IO_MEM }
 266 #define MOMENCO_OCELOT_SERIAL_PORT_DEFNS                                \
 267         _OCELOT_SERIAL_INIT(OCELOT_SERIAL1_IRQ, OCELOT_SERIAL1_BASE)
 268 #else
 269 #define MOMENCO_OCELOT_SERIAL_PORT_DEFNS
 270 #endif
 271
 272 #ifdef CONFIG_MOMENCO_OCELOT_G
 273 /* Ordinary NS16552 duart with a 20MHz crystal.  */
 274 #define OCELOT_G_BASE_BAUD ( 20000000 / 16 )
 275
 276 #define OCELOT_G_SERIAL1_IRQ    4
 277 #if 0
 278 #define OCELOT_G_SERIAL1_BASE   0xe0001020
 279 #else
 280 #define OCELOT_G_SERIAL1_BASE   0xfd000020
 281 #endif
 282
 283 #define _OCELOT_G_SERIAL_INIT(int, base)                                \
 284         { .baud_base = OCELOT_G_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS,\
 285           .iomem_base = (u8 *) base, .iomem_reg_shift = 2,                      \
 286           .io_type = SERIAL_IO_MEM }
 287 #define MOMENCO_OCELOT_G_SERIAL_PORT_DEFNS                              \
 288         _OCELOT_G_SERIAL_INIT(OCELOT_G_SERIAL1_IRQ, OCELOT_G_SERIAL1_BASE)
 289 #else
 290 #define MOMENCO_OCELOT_G_SERIAL_PORT_DEFNS
 291 #endif
 292
 293 #ifdef CONFIG_MOMENCO_OCELOT_C
 294 /* Ordinary NS16552 duart with a 20MHz crystal.  */
 295 #define OCELOT_C_BASE_BAUD ( 20000000 / 16 )
 296
 297 #define OCELOT_C_SERIAL1_IRQ    80
 298 #define OCELOT_C_SERIAL1_BASE   0xfd000020
 299
 300 #define OCELOT_C_SERIAL2_IRQ    81
 301 #define OCELOT_C_SERIAL2_BASE   0xfd000000
 302
 303 #define _OCELOT_C_SERIAL_INIT(int, base)                                \
 304         { .baud_base            = OCELOT_C_BASE_BAUD,                   \
 305           .irq                  = (int),                                \
 306           .flags                = STD_COM_FLAGS,                        \
 307           .iomem_base           = (u8 *) base,                          \
 308           .iomem_reg_shift      = 2,                                    \
 309           .io_type              = SERIAL_IO_MEM                         \
 310          }
 311 #define MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS                              \
 312         _OCELOT_C_SERIAL_INIT(OCELOT_C_SERIAL1_IRQ, OCELOT_C_SERIAL1_BASE), \
 313         _OCELOT_C_SERIAL_INIT(OCELOT_C_SERIAL2_IRQ, OCELOT_C_SERIAL2_BASE)
 314 #else
 315 #define MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS
 316 #endif
 317
 318 #ifdef CONFIG_DDB5477
 319 #include <asm/ddb5xxx/ddb5477.h>
 320 #define DDB5477_SERIAL_PORT_DEFNS                                       \
 321         { .baud_base = BASE_BAUD, .irq = VRC5477_IRQ_UART0,             \
 322           .flags = STD_COM_FLAGS, .iomem_base = (u8*)0xbfa04200,        \
 323           .iomem_reg_shift = 3, .io_type = SERIAL_IO_MEM},              \
 324         { .baud_base = BASE_BAUD, .irq = VRC5477_IRQ_UART1,             \
 325           .flags = STD_COM_FLAGS, .iomem_base = (u8*)0xbfa04240,        \
 326           .iomem_reg_shift = 3, .io_type = SERIAL_IO_MEM},
 327 #else
 328 #define DDB5477_SERIAL_PORT_DEFNS
 329 #endif
 330
 331 #ifdef CONFIG_SGI_IP32
 332 /*
 333  * The IP32 (SGI O2) has standard serial ports (UART 16550A) mapped in memory
 334  * They are initialized in ip32_setup
 335  */
 336 #define IP32_SERIAL_PORT_DEFNS                          \
 337         {},{},
 338 #else
 339 #define IP32_SERIAL_PORT_DEFNS
 340 #endif /* CONFIG_SGI_IP32 */
 341
 342 #define SERIAL_PORT_DFNS                                \
 343         COBALT_SERIAL_PORT_DEFNS                        \
 344         DDB5477_SERIAL_PORT_DEFNS                       \
 345         EV96100_SERIAL_PORT_DEFNS                       \
 346         EXTRA_SERIAL_PORT_DEFNS                         \
 347         HUB6_SERIAL_PORT_DFNS                           \
 348         IP32_SERIAL_PORT_DEFNS                          \
 349         ITE_SERIAL_PORT_DEFNS                           \
 350         IVR_SERIAL_PORT_DEFNS                           \
 351         JAZZ_SERIAL_PORT_DEFNS                          \
 352         STD_SERIAL_PORT_DEFNS                           \
 353         MOMENCO_OCELOT_G_SERIAL_PORT_DEFNS              \
 354         MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS              \
 355         MOMENCO_OCELOT_SERIAL_PORT_DEFNS                \
 356         TXX927_SERIAL_PORT_DEFNS                        \
 357         AU1000_SERIAL_PORT_DEFNS
 358
 359 #endif /* _ASM_SERIAL_H */