include/asm-sh/overdrive/overdrive.h

   1 /*
   2  * Copyright (C) 2000 David J. Mckay (david.mckay@st.com)
   3  *
   4  * May be copied or modified under the terms of the GNU General Public
   5  * License.  See linux/COPYING for more information.
   6  *
   7  */
   8
   9
  10 #ifndef __OVERDRIVE_H__
  11 #define __OVERDRIVE_H__
  12
  13 #define OVERDRIVE_INT_CT 0xa3a00000
  14 #define OVERDRIVE_INT_DT 0xa3b00000
  15
  16 #define OVERDRIVE_CTRL    0xa3000000
  17
  18 /* Shoving all these bits into the same register is not a good idea.
  19  * As soon as I get a spare moment, I'll change the FPGA and put each
  20  * bit in a separate register
  21  */
  22
  23 #define VALID_CTRL_BITS                   0x1f
  24
  25 #define ENABLE_RS232_MASK                 0x1e
  26 #define DISABLE_RS232_BIT                 0x01
  27
  28 #define ENABLE_NMI_MASK                   0x1d
  29 #define DISABLE_NMI_BIT                   0x02
  30
  31 #define RESET_PCI_MASK                    0x1b
  32 #define ENABLE_PCI_BIT                    0x04
  33
  34 #define ENABLE_LED_MASK                   0x17
  35 #define DISABLE_LED_BIT                   0x08
  36
  37 #define RESET_FPGA_MASK                   0x0f
  38 #define ENABLE_FPGA_BIT                   0x10
  39
  40
  41 #define FPGA_DCLK_ADDRESS           0xA3C00000
  42
  43 #define FPGA_DATA        0x01   /*   W */
  44 #define FPGA_CONFDONE    0x02   /* R   */
  45 #define FPGA_NOT_STATUS  0x04   /* R   */
  46 #define FPGA_INITDONE    0x08   /* R   */
  47
  48 #define FPGA_TIMEOUT     100000
  49
  50
  51 /* Interrupts for the overdrive. Note that these numbers have
  52  * nothing to do with the actual IRQ numbers they appear on,
  53  * this is all programmable. This is simply the position in the
  54  * INT_CT register.
  55  */
  56
  57 #define OVERDRIVE_PCI_INTA              0
  58 #define OVERDRIVE_PCI_INTB              1
  59 #define OVERDRIVE_PCI_INTC              2
  60 #define OVERDRIVE_PCI_INTD              3
  61 #define OVERDRIVE_GALILEO_INT           4
  62 #define OVERDRIVE_GALILEO_LOCAL_INT     5
  63 #define OVERDRIVE_AUDIO_INT             6
  64 #define OVERDRIVE_KEYBOARD_INT          7
  65
  66 /* Which Linux IRQ should we assign to each interrupt source? */
  67 #define OVERDRIVE_PCI_IRQ1              2
  68 #ifdef CONFIG_HACKED_NE2K
  69 #define OVERDRIVE_PCI_IRQ2              7
  70 #else
  71 #define OVERDRIVE_PCI_IRQ2              2
  72 #undef OVERDRIVE_PCI_INTB
  73 #define OVERDRIVE_PCI_INTB OVERDRIVE_PCI_INTA
  74
  75 #endif
  76
  77 /* Put the ESS solo audio chip on IRQ 4 */
  78 #define OVERDRIVE_ESS_IRQ               4
  79
  80 /* Where the memory behind the PCI bus appears */
  81 #define PCI_DRAM_BASE   0xb7000000
  82 #define PCI_DRAM_SIZE (16*1024*1024)
  83 #define PCI_DRAM_FINISH (PCI_DRAM_BASE+PCI_DRAM_SIZE-1)
  84
  85 /* Where the IO region appears in the memory */
  86 #define PCI_GTIO_BASE   0xb8000000
  87
  88 #endif