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disk/part_mac.h
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/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* See also Linux sources, fs/partitions/mac.h
*
* This file describes structures and values related to the standard
* Apple SCSI disk partitioning scheme. For more information see:
* http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
*/
#ifndef _DISK_PART_MAC_H
#define _DISK_PART_MAC_H
#define MAC_DRIVER_MAGIC 0x4552
/*
* Driver Descriptor Structure, in block 0.
* This block is (and shall remain) 512 bytes long.
* Note that there is an alignment problem for the driver descriptor map!
*/
typedef struct mac_driver_desc {
__u16 signature; /* expected to be MAC_DRIVER_MAGIC */
__u16 blk_size; /* block size of device */
__u32 blk_count; /* number of blocks on device */
__u16 dev_type; /* device type */
__u16 dev_id; /* device id */
__u32 data; /* reserved */
__u16 drvr_cnt; /* number of driver descriptor entries */
__u16 drvr_map[247]; /* driver descriptor map */
} mac_driver_desc_t;
/*
* Device Driver Entry
* (Cannot be included in mac_driver_desc because of alignment problems)
*/
typedef struct mac_driver_entry {
__u32 block; /* block number of starting block */
__u16 size; /* size of driver, in 512 byte blocks */
__u16 type; /* OS Type */
} mac_driver_entry_t;
#define MAC_PARTITION_MAGIC 0x504d
/* type field value for A/UX or other Unix partitions */
#define APPLE_AUX_TYPE "Apple_UNIX_SVR2"
/*
* Each Partition Map entry (in blocks 1 ... N) has this format:
*/
typedef struct mac_partition {
__u16 signature; /* expected to be MAC_PARTITION_MAGIC */
__u16 sig_pad; /* reserved */
__u32 map_count; /* # blocks in partition map */
__u32 start_block; /* abs. starting block # of partition */
__u32 block_count; /* number of blocks in partition */
uchar name[32]; /* partition name */
uchar type[32]; /* string type description */
__u32 data_start; /* rel block # of first data block */
__u32 data_count; /* number of data blocks */
__u32 status; /* partition status bits */
__u32 boot_start; /* first block of boot code */
__u32 boot_size; /* size of boot code, in bytes */
__u32 boot_load; /* boot code load address */
__u32 boot_load2; /* reserved */
__u32 boot_entry; /* boot code entry point */
__u32 boot_entry2; /* reserved */
__u32 boot_cksum; /* boot code checksum */
uchar processor[16]; /* Type of Processor */
__u16 part_pad[188]; /* reserved */
#if CONFIG_IS_ENABLED(ISO_PARTITION)
uchar iso_dummy[2048];/* Reservere enough room for an ISO partition block to fit */
#endif
} mac_partition_t;
#define MAC_STATUS_BOOTABLE 8 /* partition is bootable */
#endif /* _DISK_PART_MAC_H */
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