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fe8c2806 WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
fe8c2806 WD |
6 | */ |
7 | ||
8 | /* | |
9 | * See also Linux sources, fs/partitions/mac.h | |
10 | * | |
11 | * This file describes structures and values related to the standard | |
12 | * Apple SCSI disk partitioning scheme. For more information see: | |
13 | * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92 | |
14 | */ | |
15 | ||
16 | #ifndef _DISK_PART_MAC_H | |
17 | #define _DISK_PART_MAC_H | |
18 | ||
19 | #define MAC_DRIVER_MAGIC 0x4552 | |
20 | ||
21 | /* | |
22 | * Driver Descriptor Structure, in block 0. | |
23 | * This block is (and shall remain) 512 bytes long. | |
24 | * Note that there is an alignment problem for the driver descriptor map! | |
25 | */ | |
26 | typedef struct mac_driver_desc { | |
27 | __u16 signature; /* expected to be MAC_DRIVER_MAGIC */ | |
28 | __u16 blk_size; /* block size of device */ | |
29 | __u32 blk_count; /* number of blocks on device */ | |
30 | __u16 dev_type; /* device type */ | |
31 | __u16 dev_id; /* device id */ | |
32 | __u32 data; /* reserved */ | |
33 | __u16 drvr_cnt; /* number of driver descriptor entries */ | |
34 | __u16 drvr_map[247]; /* driver descriptor map */ | |
35 | } mac_driver_desc_t; | |
36 | ||
37 | /* | |
38 | * Device Driver Entry | |
39 | * (Cannot be included in mac_driver_desc because of alignment problems) | |
40 | */ | |
41 | typedef struct mac_driver_entry { | |
42 | __u32 block; /* block number of starting block */ | |
43 | __u16 size; /* size of driver, in 512 byte blocks */ | |
44 | __u16 type; /* OS Type */ | |
45 | } mac_driver_entry_t; | |
46 | ||
47 | ||
48 | #define MAC_PARTITION_MAGIC 0x504d | |
49 | ||
50 | /* type field value for A/UX or other Unix partitions */ | |
51 | #define APPLE_AUX_TYPE "Apple_UNIX_SVR2" | |
52 | ||
53 | /* | |
54 | * Each Partition Map entry (in blocks 1 ... N) has this format: | |
55 | */ | |
56 | typedef struct mac_partition { | |
57 | __u16 signature; /* expected to be MAC_PARTITION_MAGIC */ | |
58 | __u16 sig_pad; /* reserved */ | |
59 | __u32 map_count; /* # blocks in partition map */ | |
60 | __u32 start_block; /* abs. starting block # of partition */ | |
61 | __u32 block_count; /* number of blocks in partition */ | |
62 | uchar name[32]; /* partition name */ | |
63 | uchar type[32]; /* string type description */ | |
64 | __u32 data_start; /* rel block # of first data block */ | |
65 | __u32 data_count; /* number of data blocks */ | |
66 | __u32 status; /* partition status bits */ | |
67 | __u32 boot_start; /* first block of boot code */ | |
68 | __u32 boot_size; /* size of boot code, in bytes */ | |
69 | __u32 boot_load; /* boot code load address */ | |
70 | __u32 boot_load2; /* reserved */ | |
71 | __u32 boot_entry; /* boot code entry point */ | |
72 | __u32 boot_entry2; /* reserved */ | |
73 | __u32 boot_cksum; /* boot code checksum */ | |
74 | uchar processor[16]; /* Type of Processor */ | |
75 | __u16 part_pad[188]; /* reserved */ | |
1acc0087 | 76 | #if CONFIG_IS_ENABLED(ISO_PARTITION) |
8bde7f77 | 77 | uchar iso_dummy[2048];/* Reservere enough room for an ISO partition block to fit */ |
c7de829c | 78 | #endif |
fe8c2806 WD |
79 | } mac_partition_t; |
80 | ||
81 | #define MAC_STATUS_BOOTABLE 8 /* partition is bootable */ | |
82 | ||
83 | #endif /* _DISK_PART_MAC_H */ |