board/evb64260/mpsc.h

   1 /*
   2  * (C) Copyright 2001
   3  * John Clemens <clemens@mclx.com>, Mission Critical Linux, Inc.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /*
   9  * mpsc.h - header file for MPSC in uart mode (console driver)
  10  */
  11
  12 #ifndef __MPSC_H__
  13 #define __MPSC_H__
  14
  15 /* include actual Galileo defines */
  16 #include <galileo/gt64260R.h>
  17
  18 /* driver related defines */
  19
  20 int mpsc_init(int baud);
  21 void mpsc_init2(void);
  22 char mpsc_getchar(void);
  23 int mpsc_test_char(void);
  24 int galbrg_set_baudrate(int channel, int rate);
  25
  26 int mpsc_putchar_early(char ch);
  27 extern int (*mpsc_putchar)(char ch);
  28
  29 #define CHANNEL CONFIG_MPSC_PORT
  30
  31 #define TX_DESC     5
  32 #define RX_DESC     20
  33
  34 #define DESC_FIRST  0x00010000
  35 #define DESC_LAST   0x00020000
  36 #define DESC_OWNER  0x80000000
  37
  38 #define TX_DEMAND   0x00800000
  39 #define TX_STOP     0x00010000
  40 #define RX_ENABLE   0x00000080
  41
  42 #define SDMA_RX_ABORT             (1 << 15)
  43 #define SDMA_TX_ABORT             (1 << 31)
  44 #define MPSC_TX_ABORT             (1 << 7)
  45 #define MPSC_RX_ABORT             (1 << 23)
  46 #define MPSC_ENTER_HUNT           (1 << 31)
  47
  48 /* MPSC defines */
  49
  50 #define GALMPSC_CONNECT            0x1
  51 #define GALMPSC_DISCONNECT         0x0
  52
  53 #define GALMPSC_UART               0x1
  54
  55 #define GALMPSC_STOP_BITS_1        0x0
  56 #define GALMPSC_STOP_BITS_2        0x1
  57 #define GALMPSC_CHAR_LENGTH_8      0x3
  58 #define GALMPSC_CHAR_LENGTH_7      0x2
  59
  60 #define GALMPSC_PARITY_ODD         0x0
  61 #define GALMPSC_PARITY_EVEN        0x2
  62 #define GALMPSC_PARITY_MARK        0x3
  63 #define GALMPSC_PARITY_SPACE       0x1
  64 #define GALMPSC_PARITY_NONE        -1
  65
  66 #define GALMPSC_SERIAL_MULTIPLEX   SERIAL_PORT_MULTIPLEX           /* 0xf010 */
  67 #define GALMPSC_ROUTING_REGISTER   MAIN_ROUTING_REGISTER           /* 0xb400 */
  68 #define GALMPSC_RxC_ROUTE          RECEIVE_CLOCK_ROUTING_REGISTER  /* 0xb404 */
  69 #define GALMPSC_TxC_ROUTE          TRANSMIT_CLOCK_ROUTING_REGISTER /* 0xb408 */
  70 #define GALMPSC_MCONF_LOW          MPSC0_MAIN_CONFIGURATION_LOW    /* 0x8000 */
  71 #define GALMPSC_MCONF_HIGH         MPSC0_MAIN_CONFIGURATION_HIGH   /* 0x8004 */
  72 #define GALMPSC_PROTOCONF_REG      MPSC0_PROTOCOL_CONFIGURATION    /* 0x8008 */
  73
  74 #define GALMPSC_REG_GAP            0x1000
  75
  76 #define GALMPSC_MCONF_CHREG_BASE   CHANNEL0_REGISTER1  /* 0x800c */
  77 #define GALMPSC_CHANNELREG_1       CHANNEL0_REGISTER1  /* 0x800c */
  78 #define GALMPSC_CHANNELREG_2       CHANNEL0_REGISTER2  /* 0x8010 */
  79 #define GALMPSC_CHANNELREG_3       CHANNEL0_REGISTER3  /* 0x8014 */
  80 #define GALMPSC_CHANNELREG_4       CHANNEL0_REGISTER4  /* 0x8018 */
  81 #define GALMPSC_CHANNELREG_5       CHANNEL0_REGISTER5  /* 0x801c */
  82 #define GALMPSC_CHANNELREG_6       CHANNEL0_REGISTER6  /* 0x8020 */
  83 #define GALMPSC_CHANNELREG_7       CHANNEL0_REGISTER7  /* 0x8024 */
  84 #define GALMPSC_CHANNELREG_8       CHANNEL0_REGISTER8  /* 0x8028 */
  85 #define GALMPSC_CHANNELREG_9       CHANNEL0_REGISTER9  /* 0x802c */
  86 #define GALMPSC_CHANNELREG_10      CHANNEL0_REGISTER10 /* 0x8030 */
  87 #define GALMPSC_CHANNELREG_11      CHANNEL0_REGISTER11 /* 0x8034 */
  88
  89 #define GALSDMA_COMMAND_FIRST     (1 << 16)
  90 #define GALSDMA_COMMAND_LAST      (1 << 17)
  91 #define GALSDMA_COMMAND_ENABLEINT (1 << 23)
  92 #define GALSDMA_COMMAND_AUTO      (1 << 30)
  93 #define GALSDMA_COMMAND_OWNER     (1 << 31)
  94
  95 #define GALSDMA_RX                 0
  96 #define GALSDMA_TX                 1
  97
  98 /* CHANNEL2 should be CHANNEL1, according to documentation,
  99  * but to work with the current GTREGS file...
 100  */
 101 #define GALSDMA_0_CONF_REG         CHANNEL0_CONFIGURATION_REGISTER   /* 0x4000 */
 102 #define GALSDMA_1_CONF_REG         CHANNEL2_CONFIGURATION_REGISTER   /* 0x6000 */
 103 #define GALSDMA_0_COM_REG          CHANNEL0_COMMAND_REGISTER         /* 0x4008 */
 104 #define GALSDMA_1_COM_REG          CHANNEL2_COMMAND_REGISTER         /* 0x6008 */
 105 #define GALSDMA_0_CUR_RX_PTR       CHANNEL0_CURRENT_RX_DESCRIPTOR_POINTER  /* 0x4810 */
 106 #define GALSDMA_0_CUR_TX_PTR       CHANNEL0_CURRENT_TX_DESCRIPTOR_POINTER  /* 0x4c10 */
 107 #define GALSDMA_0_FIR_TX_PTR       CHANNEL0_FIRST_TX_DESCRIPTOR_POINTER    /* 0x4c14 */
 108 #define GALSDMA_1_CUR_RX_PTR       CHANNEL2_CURRENT_RX_DESCRIPTOR_POINTER  /* 0x6810 */
 109 #define GALSDMA_1_CUR_TX_PTR       CHANNEL2_CURRENT_TX_DESCRIPTOR_POINTER  /* 0x6c10 */
 110 #define GALSDMA_1_FIR_TX_PTR       CHANNEL2_FIRST_TX_DESCRIPTOR_POINTER    /* 0x6c14 */
 111 #define GALSDMA_REG_DIFF           0x2000
 112
 113 /* WRONG in gt64260R.h */
 114 #define GALSDMA_INT_CAUSE          0xb800   /* SDMA_CAUSE */
 115 #define GALSDMA_INT_MASK           0xb880   /* SDMA_MASK  */
 116
 117 #define GALSDMA_MODE_UART          0
 118 #define GALSDMA_MODE_BISYNC        1
 119 #define GALSDMA_MODE_HDLC          2
 120 #define GALSDMA_MODE_TRANSPARENT   3
 121
 122 #define GALBRG_0_CONFREG           BRG0_CONFIGURATION_REGISTER  /*  0xb200  */
 123 #define GALBRG_REG_GAP             0x0008
 124 #define GALBRG_0_BTREG             BRG0_BAUDE_TUNING_REGISTER   /*  0xb204  */
 125
 126 #endif /* __MPSC_H__ */