hw/m68k/bootinfo.h

   1 /*
   2  * SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
   3  *
   4  * Bootinfo tags from linux bootinfo.h and bootinfo-mac.h:
   5  * This is an easily parsable and extendable structure containing all
   6  * information to be passed from the bootstrap to the kernel
   7  *
   8  * This structure is copied right after the kernel by the bootstrap
   9  * routine.
  10  */
  11
  12 #ifndef HW_M68K_BOOTINFO_H
  13 #define HW_M68K_BOOTINFO_H
  14 struct bi_record {
  15     uint16_t tag;        /* tag ID */
  16     uint16_t size;       /* size of record */
  17     uint32_t data[0];    /* data */
  18 };
  19
  20 /* machine independent tags */
  21
  22 #define BI_LAST         0x0000 /* last record */
  23 #define BI_MACHTYPE     0x0001 /* machine type (u_long) */
  24 #define BI_CPUTYPE      0x0002 /* cpu type (u_long) */
  25 #define BI_FPUTYPE      0x0003 /* fpu type (u_long) */
  26 #define BI_MMUTYPE      0x0004 /* mmu type (u_long) */
  27 #define BI_MEMCHUNK     0x0005 /* memory chunk address and size */
  28                                /* (struct mem_info) */
  29 #define BI_RAMDISK      0x0006 /* ramdisk address and size */
  30                                /* (struct mem_info) */
  31 #define BI_COMMAND_LINE 0x0007 /* kernel command line parameters */
  32                                /* (string) */
  33
  34 /*  Macintosh-specific tags (all u_long) */
  35
  36 #define BI_MAC_MODEL    0x8000  /* Mac Gestalt ID (model type) */
  37 #define BI_MAC_VADDR    0x8001  /* Mac video base address */
  38 #define BI_MAC_VDEPTH   0x8002  /* Mac video depth */
  39 #define BI_MAC_VROW     0x8003  /* Mac video rowbytes */
  40 #define BI_MAC_VDIM     0x8004  /* Mac video dimensions */
  41 #define BI_MAC_VLOGICAL 0x8005  /* Mac video logical base */
  42 #define BI_MAC_SCCBASE  0x8006  /* Mac SCC base address */
  43 #define BI_MAC_BTIME    0x8007  /* Mac boot time */
  44 #define BI_MAC_GMTBIAS  0x8008  /* Mac GMT timezone offset */
  45 #define BI_MAC_MEMSIZE  0x8009  /* Mac RAM size (sanity check) */
  46 #define BI_MAC_CPUID    0x800a  /* Mac CPU type (sanity check) */
  47 #define BI_MAC_ROMBASE  0x800b  /* Mac system ROM base address */
  48
  49 /*  Macintosh hardware profile data */
  50
  51 #define BI_MAC_VIA1BASE 0x8010  /* Mac VIA1 base address (always present) */
  52 #define BI_MAC_VIA2BASE 0x8011  /* Mac VIA2 base address (type varies) */
  53 #define BI_MAC_VIA2TYPE 0x8012  /* Mac VIA2 type (VIA, RBV, OSS) */
  54 #define BI_MAC_ADBTYPE  0x8013  /* Mac ADB interface type */
  55 #define BI_MAC_ASCBASE  0x8014  /* Mac Apple Sound Chip base address */
  56 #define BI_MAC_SCSI5380 0x8015  /* Mac NCR 5380 SCSI (base address, multi) */
  57 #define BI_MAC_SCSIDMA  0x8016  /* Mac SCSI DMA (base address) */
  58 #define BI_MAC_SCSI5396 0x8017  /* Mac NCR 53C96 SCSI (base address, multi) */
  59 #define BI_MAC_IDETYPE  0x8018  /* Mac IDE interface type */
  60 #define BI_MAC_IDEBASE  0x8019  /* Mac IDE interface base address */
  61 #define BI_MAC_NUBUS    0x801a  /* Mac Nubus type (none, regular, pseudo) */
  62 #define BI_MAC_SLOTMASK 0x801b  /* Mac Nubus slots present */
  63 #define BI_MAC_SCCTYPE  0x801c  /* Mac SCC serial type (normal, IOP) */
  64 #define BI_MAC_ETHTYPE  0x801d  /* Mac builtin ethernet type (Sonic, MACE */
  65 #define BI_MAC_ETHBASE  0x801e  /* Mac builtin ethernet base address */
  66 #define BI_MAC_PMU      0x801f  /* Mac power management / poweroff hardware */
  67 #define BI_MAC_IOP_SWIM 0x8020  /* Mac SWIM floppy IOP */
  68 #define BI_MAC_IOP_ADB  0x8021  /* Mac ADB IOP */
  69
  70 #define BOOTINFO0(as, base, id) \
  71     do { \
  72         stw_phys(as, base, id); \
  73         base += 2; \
  74         stw_phys(as, base, sizeof(struct bi_record)); \
  75         base += 2; \
  76     } while (0)
  77
  78 #define BOOTINFO1(as, base, id, value) \
  79     do { \
  80         stw_phys(as, base, id); \
  81         base += 2; \
  82         stw_phys(as, base, sizeof(struct bi_record) + 4); \
  83         base += 2; \
  84         stl_phys(as, base, value); \
  85         base += 4; \
  86     } while (0)
  87
  88 #define BOOTINFO2(as, base, id, value1, value2) \
  89     do { \
  90         stw_phys(as, base, id); \
  91         base += 2; \
  92         stw_phys(as, base, sizeof(struct bi_record) + 8); \
  93         base += 2; \
  94         stl_phys(as, base, value1); \
  95         base += 4; \
  96         stl_phys(as, base, value2); \
  97         base += 4; \
  98     } while (0)
  99
 100 #define BOOTINFOSTR(as, base, id, string) \
 101     do { \
 102         int i; \
 103         stw_phys(as, base, id); \
 104         base += 2; \
 105         stw_phys(as, base, \
 106                  (sizeof(struct bi_record) + strlen(string) + 2) & ~1); \
 107         base += 2; \
 108         for (i = 0; string[i]; i++) { \
 109             stb_phys(as, base++, string[i]); \
 110         } \
 111         stb_phys(as, base++, 0); \
 112         base = (parameters_base + 1) & ~1; \
 113     } while (0)
 114 #endif