linux/include/linux/scx200.h
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   1/* linux/include/linux/scx200.h
   2
   3   Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
   4
   5   Defines for the National Semiconductor SCx200 Processors
   6*/
   7
   8/* Interesting stuff for the National Semiconductor SCx200 CPU */
   9
  10extern unsigned scx200_cb_base;
  11
  12#define scx200_cb_present() (scx200_cb_base!=0)
  13
  14/* F0 PCI Header/Bridge Configuration Registers */
  15#define SCx200_DOCCS_BASE 0x78  /* DOCCS Base Address Register */
  16#define SCx200_DOCCS_CTRL 0x7c  /* DOCCS Control Register */
  17
  18/* GPIO Register Block */
  19#define SCx200_GPIO_SIZE 0x2c   /* Size of GPIO register block */
  20
  21/* General Configuration Block */
  22#define SCx200_CB_BASE_FIXED 0x9000     /* Base fixed at 0x9000 according to errata? */
  23
  24/* Watchdog Timer */
  25#define SCx200_WDT_OFFSET 0x00  /* offset within configuration block */
  26#define SCx200_WDT_SIZE 0x05    /* size */
  27
  28#define SCx200_WDT_WDTO 0x00    /* Time-Out Register */
  29#define SCx200_WDT_WDCNFG 0x02  /* Configuration Register */
  30#define SCx200_WDT_WDSTS 0x04   /* Status Register */
  31#define SCx200_WDT_WDSTS_WDOVF (1<<0) /* Overflow bit */
  32
  33/* High Resolution Timer */
  34#define SCx200_TIMER_OFFSET 0x08
  35#define SCx200_TIMER_SIZE 0x06
  36
  37/* Clock Generators */
  38#define SCx200_CLOCKGEN_OFFSET 0x10
  39#define SCx200_CLOCKGEN_SIZE 0x10
  40
  41/* Pin Multiplexing and Miscellaneous Configuration Registers */
  42#define SCx200_MISC_OFFSET 0x30
  43#define SCx200_MISC_SIZE 0x10
  44
  45#define SCx200_PMR 0x30         /* Pin Multiplexing Register */
  46#define SCx200_MCR 0x34         /* Miscellaneous Configuration Register */
  47#define SCx200_INTSEL 0x38      /* Interrupt Selection Register */
  48#define SCx200_IID 0x3c         /* IA On a Chip Identification Number Reg */
  49#define SCx200_REV 0x3d         /* Revision Register */
  50#define SCx200_CBA 0x3e         /* Configuration Base Address Register */
  51#define SCx200_CBA_SCRATCH 0x64 /* Configuration Base Address Scratchpad */
  52
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