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author | wdenk <wdenk> | 2002-11-19 11:04:11 +0000 |
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committer | wdenk <wdenk> | 2002-11-19 11:04:11 +0000 |
commit | c7de829c796978e519984df2f1c8cfcf921a39a4 (patch) | |
tree | 43e42aa9a09f5265783c1622a5cea080471ef50e /disk/part_amiga.h | |
parent | 2262cfeef91458b01a1bfe3812ccbbfdf8b82807 (diff) | |
download | bootable_bootloader_goldelico_gta04-c7de829c796978e519984df2f1c8cfcf921a39a4.zip bootable_bootloader_goldelico_gta04-c7de829c796978e519984df2f1c8cfcf921a39a4.tar.gz bootable_bootloader_goldelico_gta04-c7de829c796978e519984df2f1c8cfcf921a39a4.tar.bz2 |
* Patch by Thomas Frieden, 13 Nov 2002:
Add code for AmigaOne board
(preliminary merge to U-Boot, still WIP)
* Patch by Jon Diekema, 12 Nov 2002:
- Adding URL for IEEE OUI lookup
- Making the autoboot #defines dependent on CONFIG_AUTOBOOT_KEYED
being defined.
- In the CONFIG_EXTRA_ENV_SETTINGS #define, the root-on-initrd and
root-on-nfs macros are designed to switch how the default boot
method gets defined.
Diffstat (limited to 'disk/part_amiga.h')
-rw-r--r-- | disk/part_amiga.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/disk/part_amiga.h b/disk/part_amiga.h new file mode 100644 index 0000000..9e59be9 --- /dev/null +++ b/disk/part_amiga.h @@ -0,0 +1,157 @@ +/* + * (C) Copyright 2000 + * Hans-Joerg Frieden, Hyperion Entertainment + * Hans-JoergF@hyperion-entertainment.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _DISK_PART_AMIGA_H +#define _DISK_PART_AMIGA_H +#include <common.h> + +#ifdef CONFIG_ISO_PARTITION +/* Make the buffers bigger if ISO partition support is enabled -- CD-ROMS + have 2048 byte blocks */ +#define DEFAULT_SECTOR_SIZE 2048 +#else +#define DEFAULT_SECTOR_SIZE 512 +#endif + + +#define AMIGA_BLOCK_LIMIT 16 + +/* + * Amiga disks have a very open structure. The head for the partition table information + * is stored somewhere within the first 16 blocks on disk, and is called the + * "RigidDiskBlock". + */ + +struct rigid_disk_block +{ + u32 id; + u32 summed_longs; + s32 chk_sum; + u32 host_id; + u32 block_bytes; + u32 flags; + u32 bad_block_list; + u32 partition_list; + u32 file_sys_header_list; + u32 drive_init; + u32 bootcode_block; + u32 reserved_1[5]; + + /* Physical drive geometry */ + u32 cylinders; + u32 sectors; + u32 heads; + u32 interleave; + u32 park; + u32 reserved_2[3]; + u32 write_pre_comp; + u32 reduced_write; + u32 step_rate; + u32 reserved_3[5]; + + /* logical drive geometry */ + u32 rdb_blocks_lo; + u32 rdb_blocks_hi; + u32 lo_cylinder; + u32 hi_cylinder; + u32 cyl_blocks; + u32 auto_park_seconds; + u32 high_rdsk_block; + u32 reserved_4; + + char disk_vendor[8]; + char disk_product[16]; + char disk_revision[4]; + char controller_vendor[8]; + char controller_product[16]; + char controller_revision[4]; + + u32 reserved_5[10]; +}; + +/* + * Each partition on this drive is defined by such a block + */ + +struct partition_block +{ + u32 id; + u32 summed_longs; + s32 chk_sum; + u32 host_id; + u32 next; + u32 flags; + u32 reserved_1[2]; + u32 dev_flags; + char drive_name[32]; + u32 reserved_2[15]; + u32 environment[17]; + u32 reserved_3[15]; +}; + +struct bootcode_block +{ + u32 id; + u32 summed_longs; + s32 chk_sum; + u32 host_id; + u32 next; + u32 load_data[123]; +}; + + +#define AMIGA_ID_RDISK 0x5244534B +#define AMIGA_ID_PART 0x50415254 +#define AMIGA_ID_BOOT 0x424f4f54 + +/* + * The environment array in the partition block + * describes the partition + */ + +struct amiga_part_geometry +{ + u32 table_size; + u32 size_blocks; + u32 unused1; + u32 surfaces; + u32 sector_per_block; + u32 block_per_track; + u32 reserved; + u32 prealloc; + u32 interleave; + u32 low_cyl; + u32 high_cyl; + u32 num_buffers; + u32 buf_mem_type; + u32 max_transfer; + u32 mask; + s32 boot_priority; + u32 dos_type; + u32 baud; + u32 control; + u32 boot_blocks; +}; + +#endif /* _DISK_PART_AMIGA_H_ */ |