include/asm-m32r/setup.h

   1 /*
   2  * This is set up by the setup-routine at boot-time
   3  */
   4 #define PARAM                   ((unsigned char *)empty_zero_page)
   5
   6 #define MOUNT_ROOT_RDONLY       (*(unsigned long *) (PARAM+0x000))
   7 #define RAMDISK_FLAGS           (*(unsigned long *) (PARAM+0x004))
   8 #define ORIG_ROOT_DEV           (*(unsigned long *) (PARAM+0x008))
   9 #define LOADER_TYPE             (*(unsigned long *) (PARAM+0x00c))
  10 #define INITRD_START            (*(unsigned long *) (PARAM+0x010))
  11 #define INITRD_SIZE             (*(unsigned long *) (PARAM+0x014))
  12
  13 #define M32R_CPUCLK             (*(unsigned long *) (PARAM+0x018))
  14 #define M32R_BUSCLK             (*(unsigned long *) (PARAM+0x01c))
  15 #define M32R_TIMER_DIVIDE       (*(unsigned long *) (PARAM+0x020))
  16
  17 #define COMMAND_LINE            ((char *) (PARAM+0x100))
  18
  19 #define SCREEN_INFO             (*(struct screen_info *) (PARAM+0x200))
  20
  21 #define COMMAND_LINE_SIZE       (512)
  22
  23 #define RAMDISK_IMAGE_START_MASK        (0x07FF)
  24 #define RAMDISK_PROMPT_FLAG             (0x8000)
  25 #define RAMDISK_LOAD_FLAG               (0x4000)
  26
  27 #define PFN_UP(x)       (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
  28 #define PFN_DOWN(x)     ((x) >> PAGE_SHIFT)
  29 #define PFN_PHYS(x)     ((x) << PAGE_SHIFT)
  30
  31 extern unsigned long memory_start;
  32 extern unsigned long memory_end;
  33