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