2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
13 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
14 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
15 ((x & 0xffff0000) ? 16 : 0))
16 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
19 #define PART_TYPE_UNKNOWN 0x00
20 #define PART_TYPE_MAC 0x01
21 #define PART_TYPE_DOS 0x02
22 #define PART_TYPE_ISO 0x03
23 #define PART_TYPE_AMIGA 0x04
24 #define PART_TYPE_EFI 0x05
27 * Type string for U-Boot bootable partitions
29 #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */
30 #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */
33 #define DEV_TYPE_UNKNOWN 0xff /* not connected */
34 #define DEV_TYPE_HARDDISK 0x00 /* harddisk */
35 #define DEV_TYPE_TAPE 0x01 /* Tape */
36 #define DEV_TYPE_CDROM 0x05 /* CD-ROM */
37 #define DEV_TYPE_OPDISK 0x07 /* optical disk */
39 typedef struct disk_partition {
40 lbaint_t start; /* # of first block in partition */
41 lbaint_t size; /* number of blocks in partition */
42 ulong blksz; /* block size in bytes */
43 uchar name[32]; /* partition name */
44 uchar type[32]; /* string type description */
45 int bootable; /* Active/Bootable flag is set */
46 #ifdef CONFIG_PARTITION_UUIDS
47 char uuid[37]; /* filesystem UUID as string, if exists */
49 #ifdef CONFIG_PARTITION_TYPE_GUID
50 char type_guid[37]; /* type GUID as string, if exists */
54 /* Misc _get_dev functions */
55 #ifdef CONFIG_PARTITIONS
56 struct blk_desc *get_dev(const char *ifname, int dev);
57 struct blk_desc *ide_get_dev(int dev);
58 struct blk_desc *sata_get_dev(int dev);
59 struct blk_desc *scsi_get_dev(int dev);
60 struct blk_desc *usb_stor_get_dev(int dev);
61 struct blk_desc *mmc_get_dev(int dev);
62 int mmc_select_hwpart(int dev_num, int hwpart);
63 struct blk_desc *systemace_get_dev(int dev);
64 struct blk_desc *mg_disk_get_dev(int dev);
65 struct blk_desc *host_get_dev(int dev);
66 int host_get_dev_err(int dev, struct blk_desc **blk_devp);
69 int get_partition_info(struct blk_desc *dev_desc, int part,
70 disk_partition_t *info);
71 void print_part(struct blk_desc *dev_desc);
72 void init_part(struct blk_desc *dev_desc);
73 void dev_print(struct blk_desc *dev_desc);
74 int get_device(const char *ifname, const char *dev_str,
75 struct blk_desc **dev_desc);
76 int get_device_and_partition(const char *ifname, const char *dev_part_str,
77 struct blk_desc **dev_desc,
78 disk_partition_t *info, int allow_whole_dev);
80 static inline struct blk_desc *get_dev(const char *ifname, int dev)
82 static inline struct blk_desc *ide_get_dev(int dev) { return NULL; }
83 static inline struct blk_desc *sata_get_dev(int dev) { return NULL; }
84 static inline struct blk_desc *scsi_get_dev(int dev) { return NULL; }
85 static inline struct blk_desc *usb_stor_get_dev(int dev) { return NULL; }
86 static inline struct blk_desc *mmc_get_dev(int dev) { return NULL; }
87 static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
88 static inline struct blk_desc *systemace_get_dev(int dev) { return NULL; }
89 static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
90 static inline struct blk_desc *host_get_dev(int dev) { return NULL; }
92 static inline int get_partition_info(struct blk_desc *dev_desc, int part,
93 disk_partition_t *info) { return -1; }
94 static inline void print_part(struct blk_desc *dev_desc) {}
95 static inline void init_part(struct blk_desc *dev_desc) {}
96 static inline void dev_print(struct blk_desc *dev_desc) {}
97 static inline int get_device(const char *ifname, const char *dev_str,
98 struct blk_desc **dev_desc)
100 static inline int get_device_and_partition(const char *ifname,
101 const char *dev_part_str,
102 struct blk_desc **dev_desc,
103 disk_partition_t *info,
105 { *dev_desc = NULL; return -1; }
108 #ifdef CONFIG_MAC_PARTITION
109 /* disk/part_mac.c */
110 int get_partition_info_mac(struct blk_desc *dev_desc, int part,
111 disk_partition_t *info);
112 void print_part_mac(struct blk_desc *dev_desc);
113 int test_part_mac(struct blk_desc *dev_desc);
116 #ifdef CONFIG_DOS_PARTITION
117 /* disk/part_dos.c */
118 int get_partition_info_dos(struct blk_desc *dev_desc, int part,
119 disk_partition_t *info);
120 void print_part_dos(struct blk_desc *dev_desc);
121 int test_part_dos(struct blk_desc *dev_desc);
124 #ifdef CONFIG_ISO_PARTITION
125 /* disk/part_iso.c */
126 int get_partition_info_iso(struct blk_desc *dev_desc, int part,
127 disk_partition_t *info);
128 void print_part_iso(struct blk_desc *dev_desc);
129 int test_part_iso(struct blk_desc *dev_desc);
132 #ifdef CONFIG_AMIGA_PARTITION
133 /* disk/part_amiga.c */
134 int get_partition_info_amiga(struct blk_desc *dev_desc, int part,
135 disk_partition_t *info);
136 void print_part_amiga(struct blk_desc *dev_desc);
137 int test_part_amiga(struct blk_desc *dev_desc);
140 #ifdef CONFIG_EFI_PARTITION
141 #include <part_efi.h>
142 /* disk/part_efi.c */
143 int get_partition_info_efi(struct blk_desc *dev_desc, int part,
144 disk_partition_t *info);
146 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry
148 * @param dev_desc - block device descriptor
149 * @param gpt_name - the specified table entry name
150 * @param info - returns the disk partition info
152 * @return - '0' on match, '-1' on no match, otherwise error
154 int get_partition_info_efi_by_name(struct blk_desc *dev_desc,
155 const char *name, disk_partition_t *info);
156 void print_part_efi(struct blk_desc *dev_desc);
157 int test_part_efi(struct blk_desc *dev_desc);
160 * write_gpt_table() - Write the GUID Partition Table to disk
162 * @param dev_desc - block device descriptor
163 * @param gpt_h - pointer to GPT header representation
164 * @param gpt_e - pointer to GPT partition table entries
166 * @return - zero on success, otherwise error
168 int write_gpt_table(struct blk_desc *dev_desc,
169 gpt_header *gpt_h, gpt_entry *gpt_e);
172 * gpt_fill_pte(): Fill the GPT partition table entry
174 * @param gpt_h - GPT header representation
175 * @param gpt_e - GPT partition table entries
176 * @param partitions - list of partitions
177 * @param parts - number of partitions
179 * @return zero on success
181 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
182 disk_partition_t *partitions, int parts);
185 * gpt_fill_header(): Fill the GPT header
187 * @param dev_desc - block device descriptor
188 * @param gpt_h - GPT header representation
189 * @param str_guid - disk guid string representation
190 * @param parts_count - number of partitions
192 * @return - error on str_guid conversion error
194 int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h,
195 char *str_guid, int parts_count);
198 * gpt_restore(): Restore GPT partition table
200 * @param dev_desc - block device descriptor
201 * @param str_disk_guid - disk GUID
202 * @param partitions - list of partitions
203 * @param parts - number of partitions
205 * @return zero on success
207 int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid,
208 disk_partition_t *partitions, const int parts_count);
211 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
213 * @param dev_desc - block device descriptor
214 * @param buf - buffer which contains the MBR and Primary GPT info
216 * @return - '0' on success, otherwise error
218 int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf);
221 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
223 * @param dev_desc - block device descriptor
224 * @param buf - buffer which contains the MBR and Primary GPT info
226 * @return - '0' on success, otherwise error
228 int write_mbr_and_gpt_partitions(struct blk_desc *dev_desc, void *buf);
231 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
232 * and partition table entries (PTE)
234 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
236 * @param dev_desc - block device descriptor
237 * @param gpt_head - pointer to GPT header data read from medium
238 * @param gpt_pte - pointer to GPT partition table enties read from medium
240 * @return - '0' on success, otherwise error
242 int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head,
243 gpt_entry **gpt_pte);
246 * gpt_verify_partitions() - Function to check if partitions' name, start and
247 * size correspond to '$partitions' env variable
249 * This function checks if on medium stored GPT data is in sync with information
250 * provided in '$partitions' environment variable. Specificially, name, start
251 * and size of the partition is checked.
253 * @param dev_desc - block device descriptor
254 * @param partitions - partition data read from '$partitions' env variable
255 * @param parts - number of partitions read from '$partitions' env variable
256 * @param gpt_head - pointer to GPT header data read from medium
257 * @param gpt_pte - pointer to GPT partition table enties read from medium
259 * @return - '0' on success, otherwise error
261 int gpt_verify_partitions(struct blk_desc *dev_desc,
262 disk_partition_t *partitions, int parts,
263 gpt_header *gpt_head, gpt_entry **gpt_pte);