cmd: Rework disk.c usage
[platform/kernel/u-boot.git] / cmd / disk.c
1 /*
2  * (C) Copyright 2000-2011
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7 #include <common.h>
8 #include <command.h>
9 #include <part.h>
10
11 int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
12                     char *const argv[])
13 {
14         __maybe_unused int dev;
15         int part;
16         ulong addr = CONFIG_SYS_LOAD_ADDR;
17         ulong cnt;
18         disk_partition_t info;
19 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
20         image_header_t *hdr;
21 #endif
22         struct blk_desc *dev_desc;
23
24 #if CONFIG_IS_ENABLED(FIT)
25         const void *fit_hdr = NULL;
26 #endif
27
28         bootstage_mark(BOOTSTAGE_ID_IDE_START);
29         if (argc > 3) {
30                 bootstage_error(BOOTSTAGE_ID_IDE_ADDR);
31                 return CMD_RET_USAGE;
32         }
33         bootstage_mark(BOOTSTAGE_ID_IDE_ADDR);
34
35         if (argc > 1)
36                 addr = simple_strtoul(argv[1], NULL, 16);
37
38         bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);
39
40         part = blk_get_device_part_str(intf, (argc == 3) ? argv[2] : NULL,
41                                         &dev_desc, &info, 1);
42         if (part < 0) {
43                 bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
44                 return 1;
45         }
46
47         dev = dev_desc->devnum;
48         bootstage_mark(BOOTSTAGE_ID_IDE_TYPE);
49
50         printf("\nLoading from %s device %d, partition %d: "
51                "Name: %.32s  Type: %.32s\n", intf, dev, part, info.name,
52                info.type);
53
54         debug("First Block: " LBAFU ",  # of blocks: " LBAFU
55               ", Block Size: %ld\n",
56               info.start, info.size, info.blksz);
57
58         if (blk_dread(dev_desc, info.start, 1, (ulong *)addr) != 1) {
59                 printf("** Read error on %d:%d\n", dev, part);
60                 bootstage_error(BOOTSTAGE_ID_IDE_PART_READ);
61                 return 1;
62         }
63         bootstage_mark(BOOTSTAGE_ID_IDE_PART_READ);
64
65         switch (genimg_get_format((void *) addr)) {
66 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
67         case IMAGE_FORMAT_LEGACY:
68                 hdr = (image_header_t *) addr;
69
70                 bootstage_mark(BOOTSTAGE_ID_IDE_FORMAT);
71
72                 if (!image_check_hcrc(hdr)) {
73                         puts("\n** Bad Header Checksum **\n");
74                         bootstage_error(BOOTSTAGE_ID_IDE_CHECKSUM);
75                         return 1;
76                 }
77                 bootstage_mark(BOOTSTAGE_ID_IDE_CHECKSUM);
78
79                 image_print_contents(hdr);
80
81                 cnt = image_get_image_size(hdr);
82                 break;
83 #endif
84 #if CONFIG_IS_ENABLED(FIT)
85         case IMAGE_FORMAT_FIT:
86                 fit_hdr = (const void *) addr;
87                 puts("Fit image detected...\n");
88
89                 cnt = fit_get_size(fit_hdr);
90                 break;
91 #endif
92         default:
93                 bootstage_error(BOOTSTAGE_ID_IDE_FORMAT);
94                 puts("** Unknown image type\n");
95                 return 1;
96         }
97
98         cnt += info.blksz - 1;
99         cnt /= info.blksz;
100         cnt -= 1;
101
102         if (blk_dread(dev_desc, info.start + 1, cnt,
103                       (ulong *)(addr + info.blksz)) != cnt) {
104                 printf("** Read error on %d:%d\n", dev, part);
105                 bootstage_error(BOOTSTAGE_ID_IDE_READ);
106                 return 1;
107         }
108         bootstage_mark(BOOTSTAGE_ID_IDE_READ);
109
110 #if CONFIG_IS_ENABLED(FIT)
111         /* This cannot be done earlier,
112          * we need complete FIT image in RAM first */
113         if (genimg_get_format((void *) addr) == IMAGE_FORMAT_FIT) {
114                 if (!fit_check_format(fit_hdr)) {
115                         bootstage_error(BOOTSTAGE_ID_IDE_FIT_READ);
116                         puts("** Bad FIT image format\n");
117                         return 1;
118                 }
119                 bootstage_mark(BOOTSTAGE_ID_IDE_FIT_READ_OK);
120                 fit_print_contents(fit_hdr);
121         }
122 #endif
123
124         flush_cache(addr, (cnt+1)*info.blksz);
125
126         /* Loading ok, update default load address */
127         load_addr = addr;
128
129         return bootm_maybe_autostart(cmdtp, argv[0]);
130 }