Commit 07f3d789 authored by richardretanubun's avatar richardretanubun Committed by Wolfgang Denk

Add support for CONFIG_EFI_PARTITION (GUID Partition Table)

The GUID (Globally Unique Identifier) Partition Table (GPT) is a part
of EFI. See http://en.wikipedia.org/wiki/GUID_Partition_Table

Based on linux/fs/partitions/efi.[ch]
Signed-off-by: default avatarRichard Retanubun <RichardRetanubun@RugggedCom.com>
parent fbc87dc0
......@@ -687,7 +687,7 @@ The following options need to be configured:
- Partition Support:
CONFIG_MAC_PARTITION and/or CONFIG_DOS_PARTITION
and/or CONFIG_ISO_PARTITION
and/or CONFIG_ISO_PARTITION and/or CONFIG_EFI_PARTITION
If IDE or SCSI support is enabled (CONFIG_CMD_IDE or
CONFIG_CMD_SCSI) you must configure support for at
......
......@@ -32,6 +32,7 @@ COBJS-y += part_mac.o
COBJS-y += part_dos.o
COBJS-y += part_iso.o
COBJS-y += part_amiga.o
COBJS-y += part_efi.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
......
......@@ -212,7 +212,8 @@ void dev_print (block_dev_desc_t *dev_desc)
#if defined(CONFIG_MAC_PARTITION) || \
defined(CONFIG_DOS_PARTITION) || \
defined(CONFIG_ISO_PARTITION) || \
defined(CONFIG_AMIGA_PARTITION)
defined(CONFIG_AMIGA_PARTITION) || \
defined(CONFIG_EFI_PARTITION)
void init_part (block_dev_desc_t * dev_desc)
{
......@@ -230,6 +231,14 @@ void init_part (block_dev_desc_t * dev_desc)
}
#endif
/* must be placed before DOS partition detection */
#ifdef CONFIG_EFI_PARTITION
if (test_part_efi(dev_desc) == 0) {
dev_desc->part_type = PART_TYPE_EFI;
return;
}
#endif
#ifdef CONFIG_DOS_PARTITION
if (test_part_dos(dev_desc) == 0) {
dev_desc->part_type = PART_TYPE_DOS;
......@@ -286,6 +295,15 @@ int get_partition_info (block_dev_desc_t *dev_desc, int part
}
break;
#endif
#ifdef CONFIG_EFI_PARTITION
case PART_TYPE_EFI:
if (get_partition_info_efi(dev_desc,part,info) == 0) {
PRINTF ("## Valid EFI partition found ##\n");
return (0);
}
break;
#endif
default:
break;
}
......@@ -356,14 +374,23 @@ void print_part (block_dev_desc_t * dev_desc)
print_part_amiga (dev_desc);
return;
#endif
#ifdef CONFIG_EFI_PARTITION
case PART_TYPE_EFI:
PRINTF ("## Testing for valid EFI partition ##\n");
print_part_header ("EFI", dev_desc);
print_part_efi (dev_desc);
return;
#endif
}
puts ("## Unknown partition table\n");
}
#else /* neither MAC nor DOS nor ISO partition configured */
#else /* neither MAC nor DOS nor ISO nor AMIGA nor EFI partition configured */
# error neither CONFIG_MAC_PARTITION nor CONFIG_DOS_PARTITION
# error nor CONFIG_ISO_PARTITION configured!
# error nor CONFIG_ISO_PARTITION nor CONFIG_AMIGA_PARTITION
# error nor CONFIG_EFI_PARTITION configured!
#endif
#endif
This diff is collapsed.
/*
* Copyright (C) 2008 RuggedCom, Inc.
* Richard Retanubun <RichardRetanubun@RuggedCom.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
*/
/*
* See also linux/fs/partitions/efi.h
*
* EFI GUID Partition Table
* Per Intel EFI Specification v1.02
* http://developer.intel.com/technology/efi/efi.htm
*/
#ifndef _DISK_PART_EFI_H
#define _DISK_PART_EFI_H
#define MSDOS_MBR_SIGNATURE 0xAA55
#define EFI_PMBR_OSTYPE_EFI 0xEF
#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
#define GPT_BLOCK_SIZE 512
#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
#define GPT_HEADER_REVISION_V1 0x00010000
#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
#define GPT_ENTRY_NAME "gpt"
#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
((efi_guid_t) \
{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
(b) & 0xff, ((b) >> 8) & 0xff, \
(c) & 0xff, ((c) >> 8) & 0xff, \
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
#define PARTITION_SYSTEM_GUID \
EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
#define LEGACY_MBR_PARTITION_GUID \
EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
#define PARTITION_MSFT_RESERVED_GUID \
EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
#define PARTITION_BASIC_DATA_GUID \
EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
#define PARTITION_LINUX_RAID_GUID \
EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
#define PARTITION_LINUX_SWAP_GUID \
EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
#define PARTITION_LINUX_LVM_GUID \
EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
/* linux/include/efi.h */
typedef unsigned short efi_char16_t;
typedef struct {
unsigned char b[16];
} efi_guid_t;
/* based on linux/include/genhd.h */
struct partition {
unsigned char boot_ind; /* 0x80 - active */
unsigned char head; /* starting head */
unsigned char sector; /* starting sector */
unsigned char cyl; /* starting cylinder */
unsigned char sys_ind; /* What partition type */
unsigned char end_head; /* end head */
unsigned char end_sector; /* end sector */
unsigned char end_cyl; /* end cylinder */
unsigned char start_sect[4]; /* starting sector counting from 0 */
unsigned char nr_sects[4]; /* nr of sectors in partition */
} __attribute__ ((packed));
/* based on linux/fs/partitions/efi.h */
typedef struct _gpt_header {
unsigned char signature[8];
unsigned char revision[4];
unsigned char header_size[4];
unsigned char header_crc32[4];
unsigned char reserved1[4];
unsigned char my_lba[8];
unsigned char alternate_lba[8];
unsigned char first_usable_lba[8];
unsigned char last_usable_lba[8];
efi_guid_t disk_guid;
unsigned char partition_entry_lba[8];
unsigned char num_partition_entries[4];
unsigned char sizeof_partition_entry[4];
unsigned char partition_entry_array_crc32[4];
unsigned char reserved2[GPT_BLOCK_SIZE - 92];
} __attribute__ ((packed)) gpt_header;
typedef struct _gpt_entry_attributes {
unsigned long long required_to_function:1;
unsigned long long reserved:47;
unsigned long long type_guid_specific:16;
} __attribute__ ((packed)) gpt_entry_attributes;
typedef struct _gpt_entry {
efi_guid_t partition_type_guid;
efi_guid_t unique_partition_guid;
unsigned char starting_lba[8];
unsigned char ending_lba[8];
gpt_entry_attributes attributes;
efi_char16_t partition_name[72 / sizeof(efi_char16_t)];
}
__attribute__ ((packed)) gpt_entry;
typedef struct _legacy_mbr {
unsigned char boot_code[440];
unsigned char unique_mbr_signature[4];
unsigned char unknown[2];
struct partition partition_record[4];
unsigned char signature[2];
} __attribute__ ((packed)) legacy_mbr;
#endif /* _DISK_PART_EFI_H */
......@@ -69,6 +69,7 @@ typedef struct block_dev_desc {
#define PART_TYPE_DOS 0x02
#define PART_TYPE_ISO 0x03
#define PART_TYPE_AMIGA 0x04
#define PART_TYPE_EFI 0x05
/*
* Type string for U-Boot bootable partitions
......@@ -135,4 +136,11 @@ void print_part_amiga (block_dev_desc_t *dev_desc);
int test_part_amiga (block_dev_desc_t *dev_desc);
#endif
#ifdef CONFIG_EFI_PARTITION
/* disk/part_efi.c */
int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
void print_part_efi (block_dev_desc_t *dev_desc);
int test_part_efi (block_dev_desc_t *dev_desc);
#endif
#endif /* _PART_H */
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment