include/asm-ppc/serial.h

   1 /*
   2  * include/asm-ppc/serial.h
   3  */
   4
   5 #include <linux/config.h>
   6
   7 #ifdef CONFIG_APUS
   8 #include <asm-m68k/serial.h>
   9 #else
  10 #ifdef CONFIG_GEMINI
  11 #include <asm/gemini_serial.h>
  12 #else
  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 #ifdef CONFIG_PMAC
  24 /*
  25  * Auto-probing will cause machine checks on powermacs.
  26  */
  27 #define SERIAL_PORT_DFNS
  28
  29 #ifdef CONFIG_SERIAL_MANY_PORTS
  30 #define RS_TABLE_SIZE  64
  31 #else
  32 #define RS_TABLE_SIZE  4
  33 #endif
  34
  35 #else
  36 #define SERIAL_PORT_DFNS
  37 /*
  38  * PReP, CHRP, etc.
  39  */
  40
  41 /* Standard COM flags (except for COM4, because of the 8514 problem) */
  42 #ifdef CONFIG_SERIAL_DETECT_IRQ
  43 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
  44 #define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
  45 #else
  46 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
  47 #define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
  48 #endif
  49
  50 #ifdef CONFIG_SERIAL_MANY_PORTS
  51 #define FOURPORT_FLAGS ASYNC_FOURPORT
  52 #define ACCENT_FLAGS 0
  53 #define BOCA_FLAGS 0
  54 #define HUB6_FLAGS 0
  55 #endif
  56
  57 /*
  58  * The following define the access methods for the HUB6 card. All
  59  * access is through two ports for all 24 possible chips. The card is
  60  * selected through the high 2 bits, the port on that card with the
  61  * "middle" 3 bits, and the register on that port with the bottom
  62  * 3 bits.
  63  *
  64  * While the access port and interrupt is configurable, the default
  65  * port locations are 0x302 for the port control register, and 0x303
  66  * for the data read/write register. Normally, the interrupt is at irq3
  67  * but can be anything from 3 to 7 inclusive. Note that using 3 will
  68  * require disabling com2.
  69  */
  70
  71 #define C_P(card,port) (((card)<<6|(port)<<3) + 1)
  72
  73 #define STD_SERIAL_PORT_DEFNS                   \
  74         /* UART CLK   PORT IRQ     FLAGS        */                      \
  75         { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },      /* ttyS0 */     \
  76         { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },      /* ttyS1 */     \
  77         { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },      /* ttyS2 */     \
  78         { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },     /* ttyS3 */
  79
  80
  81 #ifdef CONFIG_SERIAL_MANY_PORTS
  82 #define EXTRA_SERIAL_PORT_DEFNS                 \
  83         { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS },     /* ttyS4 */     \
  84         { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS },     /* ttyS5 */     \
  85         { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS },     /* ttyS6 */     \
  86         { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS },     /* ttyS7 */     \
  87         { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS },     /* ttyS8 */     \
  88         { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS },     /* ttyS9 */     \
  89         { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS },     /* ttyS10 */    \
  90         { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS },     /* ttyS11 */    \
  91         { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS },       /* ttyS12 */    \
  92         { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS },       /* ttyS13 */    \
  93         { 0, BASE_BAUD, 0x000, 0, 0 },  /* ttyS14 (spare) */            \
  94         { 0, BASE_BAUD, 0x000, 0, 0 },  /* ttyS15 (spare) */            \
  95         { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS },        /* ttyS16 */    \
  96         { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS },        /* ttyS17 */    \
  97         { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS },        /* ttyS18 */    \
  98         { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS },        /* ttyS19 */    \
  99         { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS },        /* ttyS20 */    \
 100         { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS },        /* ttyS21 */    \
 101         { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS },        /* ttyS22 */    \
 102         { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS },        /* ttyS23 */    \
 103         { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS },        /* ttyS24 */    \
 104         { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS },        /* ttyS25 */    \
 105         { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS },        /* ttyS26 */    \
 106         { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS },        /* ttyS27 */    \
 107         { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS },        /* ttyS28 */    \
 108         { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS },        /* ttyS29 */    \
 109         { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS },        /* ttyS30 */    \
 110         { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS },        /* ttyS31 */
 111 #else
 112 #define EXTRA_SERIAL_PORT_DEFNS
 113 #endif
 114
 115 /* You can have up to four HUB6's in the system, but I've only
 116  * included two cards here for a total of twelve ports.
 117  */
 118 #if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS))
 119 #define HUB6_SERIAL_PORT_DFNS           \
 120         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) },  /* ttyS32 */ \
 121         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) },  /* ttyS33 */ \
 122         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) },  /* ttyS34 */ \
 123         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) },  /* ttyS35 */ \
 124         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) },  /* ttyS36 */ \
 125         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) },  /* ttyS37 */ \
 126         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) },  /* ttyS38 */ \
 127         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) },  /* ttyS39 */ \
 128         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) },  /* ttyS40 */ \
 129         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) },  /* ttyS41 */ \
 130         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) },  /* ttyS42 */ \
 131         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) },  /* ttyS43 */
 132 #else
 133 #define HUB6_SERIAL_PORT_DFNS
 134 #endif
 135
 136 #define MCA_SERIAL_PORT_DFNS
 137
 138 #define SERIAL_PORT_DFNS                \
 139         STD_SERIAL_PORT_DEFNS           \
 140         EXTRA_SERIAL_PORT_DEFNS         \
 141         HUB6_SERIAL_PORT_DFNS           \
 142         MCA_SERIAL_PORT_DFNS
 143
 144 #endif /* CONFIG_PMAC */
 145 #endif /* CONFIG_GEMINI */
 146 #endif /* CONFIG_APUS */