drivers/net/dgrs_es4h.h

   1 /************************************************************************/
   2 /*                                                                      */
   3 /*      es4h.h: Hardware definition of the ES/4h Ethernet Switch, from  */
   4 /*              both the host and the 3051's point of view.             */
   5 /*              NOTE: this name is a misnomer now that there is a PCI   */
   6 /*              board.  Everything that says "es4h" should really be    */
   7 /*              "se4".  But we'll keep the old name for now.            */
   8 /*                                                                      */
   9 /*      $Id: es4h.h,v 1.10 1996/08/22 17:16:53 rick Exp $               */
  10 /*                                                                      */
  11 /************************************************************************/
  12
  13 /************************************************************************/
  14 /*                                                                      */
  15 /*      EISA I/O Registers.  These are located at 0x1000 * slot-number  */
  16 /*      plus the indicated address.  I.E. 0x4000-0x4009 for slot 4.     */
  17 /*                                                                      */
  18 /************************************************************************/
  19
  20 #define ES4H_MANUFmsb   0x00            /* Read-only */
  21 #define ES4H_MANUFlsb   0x01            /* Read-only */
  22 #       define ES4H_MANUF_CODE          0x1049  /* = "DBI" */
  23
  24 #define ES4H_PRODUCT    0x02            /* Read-only */
  25 #       define ES4H_PRODUCT_CODE        0x0A
  26 #       define EPC_PRODUCT_CODE         0x03
  27
  28 #define ES4H_REVISION   0x03            /* Read-only */
  29 #       define ES4H_REVISION_CODE       0x01
  30
  31 #define ES4H_EC         0x04            /* EISA Control */
  32 #       define ES4H_EC_RESET            0x04    /* WO, EISA reset */
  33 #       define ES4H_EC_ENABLE           0x01    /* RW, EISA enable - set to */
  34                                                 /* 1 before memory enable */
  35 #define ES4H_PC         0x05            /* Processor Control */
  36 #       define ES4H_PC_RESET            0x04    /* RW, 3051 reset */
  37 #       define ES4H_PC_INT              0x08    /* WO, assert 3051 intr. 3 */
  38
  39 #define ES4H_MW         0x06            /* Memory Window select and enable */
  40 #       define ES4H_MW_ENABLE           0x80    /* WO, enable memory */
  41 #       define ES4H_MW_SELECT_MASK      0x1f    /* WO, 32k window selected */
  42
  43 #define ES4H_IS         0x07            /* Interrupt, addr select */
  44 #       define ES4H_IS_INTMASK          0x07    /* WO, interrupt select */
  45 #       define ES4H_IS_INTOFF           0x00            /* No IRQ */
  46 #       define ES4H_IS_INT3             0x03            /* IRQ 3 */
  47 #       define ES4H_IS_INT5             0x02            /* IRQ 5 */
  48 #       define ES4H_IS_INT7             0x01            /* IRQ 7 */
  49 #       define ES4H_IS_INT10            0x04            /* IRQ 10 */
  50 #       define ES4H_IS_INT11            0x05            /* IRQ 11 */
  51 #       define ES4H_IS_INT12            0x06            /* IRQ 12 */
  52 #       define ES4H_IS_INT15            0x07            /* IRQ 15 */
  53 #       define ES4H_IS_INTACK           0x10    /* WO, interrupt ack */
  54 #       define ES4H_IS_INTPEND          0x10    /* RO, interrupt pending */
  55 #       define ES4H_IS_LINEAR           0x40    /* WO, no memory windowing */
  56 #       define ES4H_IS_AS15             0x80    /* RW, address select bit 15 */
  57
  58 #define ES4H_AS_23_16   0x08            /* Address select bits 23-16 */
  59 #define ES4H_AS_31_24   0x09            /* Address select bits 31-24 */
  60
  61 #define ES4H_IO_MAX             0x09            /* Size of I/O space */
  62
  63 /*
  64  * PCI
  65  */
  66 #define SE6_RESET               PLX_USEROUT
  67
  68 /************************************************************************/
  69 /*                                                                      */
  70 /*      3051 Memory Map                                                 */
  71 /*                                                                      */
  72 /*      Note: 3051 has 4K I-cache, 2K D-cache.  1 cycle is 50 nsec.     */
  73 /*                                                                      */
  74 /************************************************************************/
  75 #define SE4_NPORTS              4               /* # of ethernet ports */
  76 #define SE6_NPORTS              6               /* # of ethernet ports */
  77 #define SE_NPORTS               6               /* Max # of ethernet ports */
  78
  79 #define ES4H_RAM_BASE           0x83000000      /* Base address of RAM */
  80 #define ES4H_RAM_SIZE           0x00200000      /* Size of RAM (2MB) */
  81 #define ES4H_RAM_INTBASE        0x83800000      /* Base of int-on-write RAM */
  82                                                 /* a.k.a. PKT RAM */
  83
  84                                                 /* Ethernet controllers */
  85                                                 /* See: i82596.h */
  86 #define ES4H_ETHER0_PORT        0xA2000000
  87 #define ES4H_ETHER0_CMD         0xA2000100
  88 #define ES4H_ETHER1_PORT        0xA2000200
  89 #define ES4H_ETHER1_CMD         0xA2000300
  90 #define ES4H_ETHER2_PORT        0xA2000400
  91 #define ES4H_ETHER2_CMD         0xA2000500
  92 #define ES4H_ETHER3_PORT        0xA2000600
  93 #define ES4H_ETHER3_CMD         0xA2000700
  94 #define ES4H_ETHER4_PORT        0xA2000800      /* RS SE-6 only */
  95 #define ES4H_ETHER4_CMD         0xA2000900      /* RS SE-6 only */
  96 #define ES4H_ETHER5_PORT        0xA2000A00      /* RS SE-6 only */
  97 #define ES4H_ETHER5_CMD         0xA2000B00      /* RS SE-6 only */
  98
  99 #define ES4H_I8254              0xA2040000      /* 82C54 timers */
 100                                                 /* See: i8254.h */
 101
 102 #define SE4_I8254_HZ            (23000000/4)    /* EISA clock input freq. */
 103 #define SE4_IDT_HZ              (46000000)      /* EISA CPU freq. */
 104 #define SE6_I8254_HZ            (20000000/4)    /* PCI clock input freq. */
 105 #define SE6_IDT_HZ              (50000000)      /* PCI CPU freq. */
 106 #define ES4H_I8254_HZ           (23000000/4)    /* EISA clock input freq. */
 107
 108 #define ES4H_GPP                0xA2050000      /* General purpose port */
 109         /*
 110          * SE-4 (EISA) GPP bits
 111          */
 112 #       define ES4H_GPP_C0_100          0x0001  /* WO, Chan 0: 100 ohm TP */
 113 #       define ES4H_GPP_C0_SQE          0x0002  /* WO, Chan 0: normal squelch */
 114 #       define ES4H_GPP_C1_100          0x0004  /* WO, Chan 1: 100 ohm TP */
 115 #       define ES4H_GPP_C1_SQE          0x0008  /* WO, Chan 1: normal squelch */
 116 #       define ES4H_GPP_C2_100          0x0010  /* WO, Chan 2: 100 ohm TP */
 117 #       define ES4H_GPP_C2_SQE          0x0020  /* WO, Chan 2: normal squelch */
 118 #       define ES4H_GPP_C3_100          0x0040  /* WO, Chan 3: 100 ohm TP */
 119 #       define ES4H_GPP_C3_SQE          0x0080  /* WO, Chan 3: normal squelch */
 120 #       define ES4H_GPP_SQE             0x00AA  /* WO, All: normal squelch */
 121 #       define ES4H_GPP_100             0x0055  /* WO, All: 100 ohm TP */
 122 #       define ES4H_GPP_HOSTINT         0x0100  /* RO, cause intr. to host */
 123                                                 /* Hold high > 250 nsec */
 124 #       define SE4_GPP_EED              0x0200  /* RW, EEPROM data bit */
 125 #       define SE4_GPP_EECS             0x0400  /* RW, EEPROM chip select */
 126 #       define SE4_GPP_EECK             0x0800  /* RW, EEPROM clock */
 127
 128         /*
 129          * SE-6 (PCI) GPP bits
 130          */
 131 #       define SE6_GPP_EED              0x0001  /* RW, EEPROM data bit */
 132 #       define SE6_GPP_EECS             0x0002  /* RW, EEPROM chip select */
 133 #       define SE6_GPP_EECK             0x0004  /* RW, EEPROM clock */
 134 #       define SE6_GPP_LINK             0x00fc  /* R, Link status LEDs */
 135
 136 #define ES4H_INTVEC             0xA2060000      /* RO: Interrupt Vector */
 137 #       define ES4H_IV_DMA0             0x01    /* Chan 0 DMA interrupt */
 138 #       define ES4H_IV_PKT0             0x02    /* Chan 0 PKT interrupt */
 139 #       define ES4H_IV_DMA1             0x04    /* Chan 1 DMA interrupt */
 140 #       define ES4H_IV_PKT1             0x08    /* Chan 1 PKT interrupt */
 141 #       define ES4H_IV_DMA2             0x10    /* Chan 2 DMA interrupt */
 142 #       define ES4H_IV_PKT2             0x20    /* Chan 2 PKT interrupt */
 143 #       define ES4H_IV_DMA3             0x40    /* Chan 3 DMA interrupt */
 144 #       define ES4H_IV_PKT3             0x80    /* Chan 3 PKT interrupt */
 145
 146 #define ES4H_INTACK             0xA2060000      /* WO: Interrupt Ack */
 147 #       define ES4H_INTACK_8254         0x01    /* Real Time Clock (int 0) */
 148 #       define ES4H_INTACK_HOST         0x02    /* Host (int 1) */
 149 #       define ES4H_INTACK_PKT0         0x04    /* Chan 0 Pkt (int 2) */
 150 #       define ES4H_INTACK_PKT1         0x08    /* Chan 1 Pkt (int 3) */
 151 #       define ES4H_INTACK_PKT2         0x10    /* Chan 2 Pkt (int 4) */
 152 #       define ES4H_INTACK_PKT3         0x20    /* Chan 3 Pkt (int 5) */
 153
 154 #define SE6_PLX                 0xA2070000      /* PLX 9060, SE-6 (PCI) only */
 155                                                 /* see plx9060.h */
 156
 157 #define SE6_PCI_VENDOR_ID       0x114F          /* Digi PCI vendor ID */
 158 #define SE6_PCI_DEVICE_ID       0x0003          /* RS SE-6 device ID */
 159 #define SE6_PCI_ID              ((SE6_PCI_DEVICE_ID<<16) | SE6_PCI_VENDOR_ID)
 160
 161 /*
 162  *      IDT Interrupts
 163  */
 164 #define ES4H_INT_8254           IDT_INT0
 165 #define ES4H_INT_HOST           IDT_INT1
 166 #define ES4H_INT_ETHER0         IDT_INT2
 167 #define ES4H_INT_ETHER1         IDT_INT3
 168 #define ES4H_INT_ETHER2         IDT_INT4
 169 #define ES4H_INT_ETHER3         IDT_INT5
 170
 171 /*
 172  *      Because there are differences between the SE-4 and the SE-6,
 173  *      we assume that the following globals will be set up at init
 174  *      time in main.c to containt the appropriate constants from above
 175  */
 176 extern ushort   Gpp;            /* Softcopy of GPP register */
 177 extern ushort   EEck;           /* Clock bit */
 178 extern ushort   EEcs;           /* CS bit */
 179 extern ushort   EEd;            /* Data bit */
 180 extern ulong    I8254_Hz;       /* i8254 input frequency */
 181 extern ulong    IDT_Hz;         /* IDT CPU frequency */
 182 extern int      Nports;         /* Number of ethernet controllers */
 183 extern int      Nchan;          /* Nports+1 */