xref: /openbmc/u-boot/cmd/disk.c (revision 4685d4e9)
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 #if defined(CONFIG_CMD_IDE) || defined(CONFIG_SCSI) || \
12 	defined(CONFIG_USB_STORAGE)
13 int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
14 		    char *const argv[])
15 {
16 	int dev, part;
17 	ulong addr = CONFIG_SYS_LOAD_ADDR;
18 	ulong cnt;
19 	disk_partition_t info;
20 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
21 	image_header_t *hdr;
22 #endif
23 	struct blk_desc *dev_desc;
24 
25 #if CONFIG_IS_ENABLED(FIT)
26 	const void *fit_hdr = NULL;
27 #endif
28 
29 	bootstage_mark(BOOTSTAGE_ID_IDE_START);
30 	if (argc > 3) {
31 		bootstage_error(BOOTSTAGE_ID_IDE_ADDR);
32 		return CMD_RET_USAGE;
33 	}
34 	bootstage_mark(BOOTSTAGE_ID_IDE_ADDR);
35 
36 	if (argc > 1)
37 		addr = simple_strtoul(argv[1], NULL, 16);
38 
39 	bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);
40 
41 	part = blk_get_device_part_str(intf, (argc == 3) ? argv[2] : NULL,
42 					&dev_desc, &info, 1);
43 	if (part < 0) {
44 		bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
45 		return 1;
46 	}
47 
48 	dev = dev_desc->devnum;
49 	bootstage_mark(BOOTSTAGE_ID_IDE_TYPE);
50 
51 	printf("\nLoading from %s device %d, partition %d: "
52 	       "Name: %.32s  Type: %.32s\n", intf, dev, part, info.name,
53 	       info.type);
54 
55 	debug("First Block: " LBAFU ",  # of blocks: " LBAFU
56 	      ", Block Size: %ld\n",
57 	      info.start, info.size, info.blksz);
58 
59 	if (blk_dread(dev_desc, info.start, 1, (ulong *)addr) != 1) {
60 		printf("** Read error on %d:%d\n", dev, part);
61 		bootstage_error(BOOTSTAGE_ID_IDE_PART_READ);
62 		return 1;
63 	}
64 	bootstage_mark(BOOTSTAGE_ID_IDE_PART_READ);
65 
66 	switch (genimg_get_format((void *) addr)) {
67 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
68 	case IMAGE_FORMAT_LEGACY:
69 		hdr = (image_header_t *) addr;
70 
71 		bootstage_mark(BOOTSTAGE_ID_IDE_FORMAT);
72 
73 		if (!image_check_hcrc(hdr)) {
74 			puts("\n** Bad Header Checksum **\n");
75 			bootstage_error(BOOTSTAGE_ID_IDE_CHECKSUM);
76 			return 1;
77 		}
78 		bootstage_mark(BOOTSTAGE_ID_IDE_CHECKSUM);
79 
80 		image_print_contents(hdr);
81 
82 		cnt = image_get_image_size(hdr);
83 		break;
84 #endif
85 #if CONFIG_IS_ENABLED(FIT)
86 	case IMAGE_FORMAT_FIT:
87 		fit_hdr = (const void *) addr;
88 		puts("Fit image detected...\n");
89 
90 		cnt = fit_get_size(fit_hdr);
91 		break;
92 #endif
93 	default:
94 		bootstage_error(BOOTSTAGE_ID_IDE_FORMAT);
95 		puts("** Unknown image type\n");
96 		return 1;
97 	}
98 
99 	cnt += info.blksz - 1;
100 	cnt /= info.blksz;
101 	cnt -= 1;
102 
103 	if (blk_dread(dev_desc, info.start + 1, cnt,
104 		      (ulong *)(addr + info.blksz)) != cnt) {
105 		printf("** Read error on %d:%d\n", dev, part);
106 		bootstage_error(BOOTSTAGE_ID_IDE_READ);
107 		return 1;
108 	}
109 	bootstage_mark(BOOTSTAGE_ID_IDE_READ);
110 
111 #if CONFIG_IS_ENABLED(FIT)
112 	/* This cannot be done earlier,
113 	 * we need complete FIT image in RAM first */
114 	if (genimg_get_format((void *) addr) == IMAGE_FORMAT_FIT) {
115 		if (!fit_check_format(fit_hdr)) {
116 			bootstage_error(BOOTSTAGE_ID_IDE_FIT_READ);
117 			puts("** Bad FIT image format\n");
118 			return 1;
119 		}
120 		bootstage_mark(BOOTSTAGE_ID_IDE_FIT_READ_OK);
121 		fit_print_contents(fit_hdr);
122 	}
123 #endif
124 
125 	flush_cache(addr, (cnt+1)*info.blksz);
126 
127 	/* Loading ok, update default load address */
128 	load_addr = addr;
129 
130 	return bootm_maybe_autostart(cmdtp, argv[0]);
131 }
132 #endif
133