2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
13 int if_type; /* type of the interface */
14 int dev; /* device number */
15 unsigned char part_type; /* partition type */
16 unsigned char target; /* target SCSI ID */
17 unsigned char lun; /* target LUN */
18 unsigned char hwpart; /* HW partition, e.g. for eMMC */
19 unsigned char type; /* device type */
20 unsigned char removable; /* removable device */
22 unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */
24 lbaint_t lba; /* number of blocks */
25 unsigned long blksz; /* block size */
26 int log2blksz; /* for convenience: log2(blksz) */
27 char vendor [40+1]; /* IDE model, SCSI Vendor */
28 char product[20+1]; /* IDE Serial no, SCSI product */
29 char revision[8+1]; /* firmware revision */
30 unsigned long (*block_read)(struct blk_desc *block_dev,
34 unsigned long (*block_write)(struct blk_desc *block_dev,
38 unsigned long (*block_erase)(struct blk_desc *block_dev,
41 void *priv; /* driver private struct pointer */
44 #define BLOCK_CNT(size, blk_desc) (PAD_COUNT(size, blk_desc->blksz))
45 #define PAD_TO_BLOCKSIZE(size, blk_desc) \
46 (PAD_SIZE(size, blk_desc->blksz))
47 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
48 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
49 ((x & 0xffff0000) ? 16 : 0))
50 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
52 /* Interface types: */
53 #define IF_TYPE_UNKNOWN 0
55 #define IF_TYPE_SCSI 2
56 #define IF_TYPE_ATAPI 3
61 #define IF_TYPE_SATA 8
62 #define IF_TYPE_HOST 9
63 #define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */
66 #define PART_TYPE_UNKNOWN 0x00
67 #define PART_TYPE_MAC 0x01
68 #define PART_TYPE_DOS 0x02
69 #define PART_TYPE_ISO 0x03
70 #define PART_TYPE_AMIGA 0x04
71 #define PART_TYPE_EFI 0x05
74 * Type string for U-Boot bootable partitions
76 #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */
77 #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */
80 #define DEV_TYPE_UNKNOWN 0xff /* not connected */
81 #define DEV_TYPE_HARDDISK 0x00 /* harddisk */
82 #define DEV_TYPE_TAPE 0x01 /* Tape */
83 #define DEV_TYPE_CDROM 0x05 /* CD-ROM */
84 #define DEV_TYPE_OPDISK 0x07 /* optical disk */
86 typedef struct disk_partition {
87 lbaint_t start; /* # of first block in partition */
88 lbaint_t size; /* number of blocks in partition */
89 ulong blksz; /* block size in bytes */
90 uchar name[32]; /* partition name */
91 uchar type[32]; /* string type description */
92 int bootable; /* Active/Bootable flag is set */
93 #ifdef CONFIG_PARTITION_UUIDS
94 char uuid[37]; /* filesystem UUID as string, if exists */
96 #ifdef CONFIG_PARTITION_TYPE_GUID
97 char type_guid[37]; /* type GUID as string, if exists */
101 /* Misc _get_dev functions */
102 #ifdef CONFIG_PARTITIONS
103 struct blk_desc *get_dev(const char *ifname, int dev);
104 struct blk_desc *ide_get_dev(int dev);
105 struct blk_desc *sata_get_dev(int dev);
106 struct blk_desc *scsi_get_dev(int dev);
107 struct blk_desc *usb_stor_get_dev(int dev);
108 struct blk_desc *mmc_get_dev(int dev);
109 int mmc_select_hwpart(int dev_num, int hwpart);
110 struct blk_desc *systemace_get_dev(int dev);
111 struct blk_desc *mg_disk_get_dev(int dev);
112 struct blk_desc *host_get_dev(int dev);
113 int host_get_dev_err(int dev, struct blk_desc **blk_devp);
116 int get_partition_info(struct blk_desc *dev_desc, int part,
117 disk_partition_t *info);
118 void print_part(struct blk_desc *dev_desc);
119 void init_part(struct blk_desc *dev_desc);
120 void dev_print(struct blk_desc *dev_desc);
121 int get_device(const char *ifname, const char *dev_str,
122 struct blk_desc **dev_desc);
123 int get_device_and_partition(const char *ifname, const char *dev_part_str,
124 struct blk_desc **dev_desc,
125 disk_partition_t *info, int allow_whole_dev);
127 static inline struct blk_desc *get_dev(const char *ifname, int dev)
129 static inline struct blk_desc *ide_get_dev(int dev) { return NULL; }
130 static inline struct blk_desc *sata_get_dev(int dev) { return NULL; }
131 static inline struct blk_desc *scsi_get_dev(int dev) { return NULL; }
132 static inline struct blk_desc *usb_stor_get_dev(int dev) { return NULL; }
133 static inline struct blk_desc *mmc_get_dev(int dev) { return NULL; }
134 static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
135 static inline struct blk_desc *systemace_get_dev(int dev) { return NULL; }
136 static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
137 static inline struct blk_desc *host_get_dev(int dev) { return NULL; }
139 static inline int get_partition_info(struct blk_desc *dev_desc, int part,
140 disk_partition_t *info) { return -1; }
141 static inline void print_part(struct blk_desc *dev_desc) {}
142 static inline void init_part(struct blk_desc *dev_desc) {}
143 static inline void dev_print(struct blk_desc *dev_desc) {}
144 static inline int get_device(const char *ifname, const char *dev_str,
145 struct blk_desc **dev_desc)
147 static inline int get_device_and_partition(const char *ifname,
148 const char *dev_part_str,
149 struct blk_desc **dev_desc,
150 disk_partition_t *info,
152 { *dev_desc = NULL; return -1; }
155 #ifdef CONFIG_MAC_PARTITION
156 /* disk/part_mac.c */
157 int get_partition_info_mac(struct blk_desc *dev_desc, int part,
158 disk_partition_t *info);
159 void print_part_mac(struct blk_desc *dev_desc);
160 int test_part_mac(struct blk_desc *dev_desc);
163 #ifdef CONFIG_DOS_PARTITION
164 /* disk/part_dos.c */
165 int get_partition_info_dos(struct blk_desc *dev_desc, int part,
166 disk_partition_t *info);
167 void print_part_dos(struct blk_desc *dev_desc);
168 int test_part_dos(struct blk_desc *dev_desc);
171 #ifdef CONFIG_ISO_PARTITION
172 /* disk/part_iso.c */
173 int get_partition_info_iso(struct blk_desc *dev_desc, int part,
174 disk_partition_t *info);
175 void print_part_iso(struct blk_desc *dev_desc);
176 int test_part_iso(struct blk_desc *dev_desc);
179 #ifdef CONFIG_AMIGA_PARTITION
180 /* disk/part_amiga.c */
181 int get_partition_info_amiga(struct blk_desc *dev_desc, int part,
182 disk_partition_t *info);
183 void print_part_amiga(struct blk_desc *dev_desc);
184 int test_part_amiga(struct blk_desc *dev_desc);
187 #ifdef CONFIG_EFI_PARTITION
188 #include <part_efi.h>
189 /* disk/part_efi.c */
190 int get_partition_info_efi(struct blk_desc *dev_desc, int part,
191 disk_partition_t *info);
193 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry
195 * @param dev_desc - block device descriptor
196 * @param gpt_name - the specified table entry name
197 * @param info - returns the disk partition info
199 * @return - '0' on match, '-1' on no match, otherwise error
201 int get_partition_info_efi_by_name(struct blk_desc *dev_desc,
202 const char *name, disk_partition_t *info);
203 void print_part_efi(struct blk_desc *dev_desc);
204 int test_part_efi(struct blk_desc *dev_desc);
207 * write_gpt_table() - Write the GUID Partition Table to disk
209 * @param dev_desc - block device descriptor
210 * @param gpt_h - pointer to GPT header representation
211 * @param gpt_e - pointer to GPT partition table entries
213 * @return - zero on success, otherwise error
215 int write_gpt_table(struct blk_desc *dev_desc,
216 gpt_header *gpt_h, gpt_entry *gpt_e);
219 * gpt_fill_pte(): Fill the GPT partition table entry
221 * @param gpt_h - GPT header representation
222 * @param gpt_e - GPT partition table entries
223 * @param partitions - list of partitions
224 * @param parts - number of partitions
226 * @return zero on success
228 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
229 disk_partition_t *partitions, int parts);
232 * gpt_fill_header(): Fill the GPT header
234 * @param dev_desc - block device descriptor
235 * @param gpt_h - GPT header representation
236 * @param str_guid - disk guid string representation
237 * @param parts_count - number of partitions
239 * @return - error on str_guid conversion error
241 int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h,
242 char *str_guid, int parts_count);
245 * gpt_restore(): Restore GPT partition table
247 * @param dev_desc - block device descriptor
248 * @param str_disk_guid - disk GUID
249 * @param partitions - list of partitions
250 * @param parts - number of partitions
252 * @return zero on success
254 int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid,
255 disk_partition_t *partitions, const int parts_count);
258 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
260 * @param dev_desc - block device descriptor
261 * @param buf - buffer which contains the MBR and Primary GPT info
263 * @return - '0' on success, otherwise error
265 int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf);
268 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
270 * @param dev_desc - block device descriptor
271 * @param buf - buffer which contains the MBR and Primary GPT info
273 * @return - '0' on success, otherwise error
275 int write_mbr_and_gpt_partitions(struct blk_desc *dev_desc, void *buf);
278 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
279 * and partition table entries (PTE)
281 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
283 * @param dev_desc - block device descriptor
284 * @param gpt_head - pointer to GPT header data read from medium
285 * @param gpt_pte - pointer to GPT partition table enties read from medium
287 * @return - '0' on success, otherwise error
289 int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head,
290 gpt_entry **gpt_pte);
293 * gpt_verify_partitions() - Function to check if partitions' name, start and
294 * size correspond to '$partitions' env variable
296 * This function checks if on medium stored GPT data is in sync with information
297 * provided in '$partitions' environment variable. Specificially, name, start
298 * and size of the partition is checked.
300 * @param dev_desc - block device descriptor
301 * @param partitions - partition data read from '$partitions' env variable
302 * @param parts - number of partitions read from '$partitions' env variable
303 * @param gpt_head - pointer to GPT header data read from medium
304 * @param gpt_pte - pointer to GPT partition table enties read from medium
306 * @return - '0' on success, otherwise error
308 int gpt_verify_partitions(struct blk_desc *dev_desc,
309 disk_partition_t *partitions, int parts,
310 gpt_header *gpt_head, gpt_entry **gpt_pte);