include/asm-ppc/heathrow.h

   1 /*
   2  * heathrow.h: definitions for using the "Heathrow" I/O controller chip.
   3  *
   4  * Grabbed from Open Firmware definitions on a PowerBook G3 Series
   5  *
   6  * Copyright (C) 1997 Paul Mackerras.
   7  */
   8
   9 /* offset from ohare base for feature control register */
  10 #define HEATHROW_FEATURE_REG    0x38
  11
  12 /*
  13  * Bits in feature control register.
  14  * Bits postfixed with a _N are in inverse logic
  15  */
  16 #define HRW_RESET_SCC           0x00000001      /* Named in_use_led in OF ??? */
  17 #define HRW_BAY_POWER_N         0x00000002
  18 #define HRW_BAY_PCI_ENABLE      0x00000004
  19 #define HRW_BAY_IDE_ENABLE      0x00000008
  20 #define HRW_BAY_FLOPPY_ENABLE   0x00000010
  21 #define HRW_IDE0_ENABLE         0x00000020
  22 #define HRW_IDE0_RESET_N        0x00000040
  23 #define HRW_BAY_RESET_N         0x00000080
  24 #define HRW_IOBUS_ENABLE        0x00000100      /* Internal IDE ? */
  25 #define HRW_SCC_ENABLE          0x00000200
  26 #define HRW_MESH_ENABLE         0x00000400
  27 #define HRW_SWIM_ENABLE         0x00000800
  28 #define HRW_SOUND_POWER_N       0x00001000
  29 #define HRW_SOUND_CLK_ENABLE    0x00002000
  30 #define HRW_SCCA_IO             0x00004000
  31 #define HRW_SCCB_IO             0x00008000
  32 #define HRW_PORT_OR_DESK_VIA_N  0x00010000      /* This one is 0 on PowerBook */
  33 #define HRW_PWM_MON_ID_N        0x00020000      /* ??? (0) */
  34 #define HRW_HOOK_MB_CNT_N       0x00040000      /* ??? (0) */
  35 #define HRW_SWIM_CLONE_FLOPPY   0x00080000      /* ??? (0) */
  36 #define HRW_AUD_RUN22           0x00100000      /* ??? (1) */
  37 #define HRW_SCSI_LINK_MODE      0x00200000      /* Read ??? (1) */
  38 #define HRW_ARB_BYPASS          0x00400000      /* ??? (0 on main, 1 on gatwick) */
  39 #define HRW_IDE1_RESET_N        0x00800000      /* Media bay */
  40 #define HRW_SLOW_SCC_PCLK       0x01000000      /* ??? (0) */
  41 #define HRW_MODEM_POWER_N       0x02000000      /* Used by internal modem on wallstreet */
  42 #define HRW_MFDC_CELL_ENABLE    0x04000000      /* ??? (0) */
  43 #define HRW_USE_MFDC            0x08000000      /* ??? (0) */
  44 #define HRW_BMAC_IO_ENABLE      0x60000000      /* two bits, not documented in OF */
  45 #define HRW_BMAC_RESET          0x80000000      /* not documented in OF */
  46
  47 #define PADD_MODEM_POWER_N      0x00000001      /* modem power on paddington */