include/asm-ppc/serial.h

   1 /*
   2  * include/asm-ppc/serial.h
   3  */
   4
   5 #include <linux/config.h>
   6
   7 #ifdef CONFIG_GEMINI
   8 #include <asm/gemini_serial.h>
   9 #else
  10
  11 /*
  12  * This assumes you have a 1.8432 MHz clock for your UART.
  13  *
  14  * It'd be nice if someone built a serial card with a 24.576 MHz
  15  * clock, since the 16550A is capable of handling a top speed of 1.5
  16  * megabits/second; but this requires the faster clock.
  17  */
  18 #define BASE_BAUD ( 1843200 / 16 )
  19
  20 #ifdef CONFIG_SERIAL_MANY_PORTS
  21 #define RS_TABLE_SIZE  64
  22 #else
  23 #define RS_TABLE_SIZE  4
  24 #endif
  25
  26 #ifdef CONFIG_PMAC
  27 /*
  28  * Auto-probing will cause machine checks on powermacs.
  29  */
  30 #define SERIAL_PORT_DFNS
  31 #else
  32 /*
  33  * PReP, CHRP, etc.
  34  */
  35
  36 /* Standard COM flags (except for COM4, because of the 8514 problem) */
  37 #ifdef CONFIG_SERIAL_DETECT_IRQ
  38 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
  39 #define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
  40 #else
  41 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
  42 #define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
  43 #endif
  44
  45 #ifdef CONFIG_SERIAL_MANY_PORTS
  46 #define FOURPORT_FLAGS ASYNC_FOURPORT
  47 #define ACCENT_FLAGS 0
  48 #define BOCA_FLAGS 0
  49 #define HUB6_FLAGS 0
  50 #endif
  51
  52 /*
  53  * The following define the access methods for the HUB6 card. All
  54  * access is through two ports for all 24 possible chips. The card is
  55  * selected through the high 2 bits, the port on that card with the
  56  * "middle" 3 bits, and the register on that port with the bottom
  57  * 3 bits.
  58  *
  59  * While the access port and interrupt is configurable, the default
  60  * port locations are 0x302 for the port control register, and 0x303
  61  * for the data read/write register. Normally, the interrupt is at irq3
  62  * but can be anything from 3 to 7 inclusive. Note that using 3 will
  63  * require disabling com2.
  64  */
  65
  66 #define C_P(card,port) (((card)<<6|(port)<<3) + 1)
  67
  68 #define STD_SERIAL_PORT_DEFNS                   \
  69         /* UART CLK   PORT IRQ     FLAGS        */                      \
  70         { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },      /* ttyS0 */     \
  71         { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },      /* ttyS1 */     \
  72         { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },      /* ttyS2 */     \
  73         { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },     /* ttyS3 */
  74
  75
  76 #ifdef CONFIG_SERIAL_MANY_PORTS
  77 #define EXTRA_SERIAL_PORT_DEFNS                 \
  78         { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS },     /* ttyS4 */     \
  79         { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS },     /* ttyS5 */     \
  80         { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS },     /* ttyS6 */     \
  81         { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS },     /* ttyS7 */     \
  82         { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS },     /* ttyS8 */     \
  83         { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS },     /* ttyS9 */     \
  84         { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS },     /* ttyS10 */    \
  85         { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS },     /* ttyS11 */    \
  86         { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS },       /* ttyS12 */    \
  87         { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS },       /* ttyS13 */    \
  88         { 0, BASE_BAUD, 0x000, 0, 0 },  /* ttyS14 (spare) */            \
  89         { 0, BASE_BAUD, 0x000, 0, 0 },  /* ttyS15 (spare) */            \
  90         { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS },        /* ttyS16 */    \
  91         { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS },        /* ttyS17 */    \
  92         { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS },        /* ttyS18 */    \
  93         { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS },        /* ttyS19 */    \
  94         { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS },        /* ttyS20 */    \
  95         { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS },        /* ttyS21 */    \
  96         { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS },        /* ttyS22 */    \
  97         { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS },        /* ttyS23 */    \
  98         { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS },        /* ttyS24 */    \
  99         { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS },        /* ttyS25 */    \
 100         { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS },        /* ttyS26 */    \
 101         { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS },        /* ttyS27 */    \
 102         { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS },        /* ttyS28 */    \
 103         { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS },        /* ttyS29 */    \
 104         { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS },        /* ttyS30 */    \
 105         { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS },        /* ttyS31 */
 106 #else
 107 #define EXTRA_SERIAL_PORT_DEFNS
 108 #endif
 109
 110 /* You can have up to four HUB6's in the system, but I've only
 111  * included two cards here for a total of twelve ports.
 112  */
 113 #if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS))
 114 #define HUB6_SERIAL_PORT_DFNS           \
 115         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) },  /* ttyS32 */ \
 116         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) },  /* ttyS33 */ \
 117         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) },  /* ttyS34 */ \
 118         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) },  /* ttyS35 */ \
 119         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) },  /* ttyS36 */ \
 120         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) },  /* ttyS37 */ \
 121         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) },  /* ttyS38 */ \
 122         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) },  /* ttyS39 */ \
 123         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) },  /* ttyS40 */ \
 124         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) },  /* ttyS41 */ \
 125         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) },  /* ttyS42 */ \
 126         { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) },  /* ttyS43 */
 127 #else
 128 #define HUB6_SERIAL_PORT_DFNS
 129 #endif
 130
 131 #define MCA_SERIAL_PORT_DFNS
 132
 133 #define SERIAL_PORT_DFNS                \
 134         STD_SERIAL_PORT_DEFNS           \
 135         EXTRA_SERIAL_PORT_DEFNS         \
 136         HUB6_SERIAL_PORT_DFNS           \
 137         MCA_SERIAL_PORT_DFNS
 138
 139 #endif /* CONFIG_PMAC */
 140 #endif /* CONFIG_GEMINI */