summaryrefslogtreecommitdiff
path: root/cmd/disk.c
blob: 437c1753740c848a2d184febd7b0c3f62ac1439c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2000-2011
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 */
#include <common.h>
#include <command.h>
#include <cpu_func.h>
#include <part.h>

int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
		    char *const argv[])
{
	__maybe_unused int dev;
	int part;
	ulong addr = CONFIG_SYS_LOAD_ADDR;
	ulong cnt;
	disk_partition_t info;
#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
	image_header_t *hdr;
#endif
	struct blk_desc *dev_desc;

#if CONFIG_IS_ENABLED(FIT)
	const void *fit_hdr = NULL;
#endif

	bootstage_mark(BOOTSTAGE_ID_IDE_START);
	if (argc > 3) {
		bootstage_error(BOOTSTAGE_ID_IDE_ADDR);
		return CMD_RET_USAGE;
	}
	bootstage_mark(BOOTSTAGE_ID_IDE_ADDR);

	if (argc > 1)
		addr = simple_strtoul(argv[1], NULL, 16);

	bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);

	part = blk_get_device_part_str(intf, (argc == 3) ? argv[2] : NULL,
					&dev_desc, &info, 1);
	if (part < 0) {
		bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
		return 1;
	}

	dev = dev_desc->devnum;
	bootstage_mark(BOOTSTAGE_ID_IDE_TYPE);

	printf("\nLoading from %s device %d, partition %d: "
	       "Name: %.32s  Type: %.32s\n", intf, dev, part, info.name,
	       info.type);

	debug("First Block: " LBAFU ",  # of blocks: " LBAFU
	      ", Block Size: %ld\n",
	      info.start, info.size, info.blksz);

	if (blk_dread(dev_desc, info.start, 1, (ulong *)addr) != 1) {
		printf("** Read error on %d:%d\n", dev, part);
		bootstage_error(BOOTSTAGE_ID_IDE_PART_READ);
		return 1;
	}
	bootstage_mark(BOOTSTAGE_ID_IDE_PART_READ);

	switch (genimg_get_format((void *) addr)) {
#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
	case IMAGE_FORMAT_LEGACY:
		hdr = (image_header_t *) addr;

		bootstage_mark(BOOTSTAGE_ID_IDE_FORMAT);

		if (!image_check_hcrc(hdr)) {
			puts("\n** Bad Header Checksum **\n");
			bootstage_error(BOOTSTAGE_ID_IDE_CHECKSUM);
			return 1;
		}
		bootstage_mark(BOOTSTAGE_ID_IDE_CHECKSUM);

		image_print_contents(hdr);

		cnt = image_get_image_size(hdr);
		break;
#endif
#if CONFIG_IS_ENABLED(FIT)
	case IMAGE_FORMAT_FIT:
		fit_hdr = (const void *) addr;
		puts("Fit image detected...\n");

		cnt = fit_get_size(fit_hdr);
		break;
#endif
	default:
		bootstage_error(BOOTSTAGE_ID_IDE_FORMAT);
		puts("** Unknown image type\n");
		return 1;
	}

	cnt += info.blksz - 1;
	cnt /= info.blksz;
	cnt -= 1;

	if (blk_dread(dev_desc, info.start + 1, cnt,
		      (ulong *)(addr + info.blksz)) != cnt) {
		printf("** Read error on %d:%d\n", dev, part);
		bootstage_error(BOOTSTAGE_ID_IDE_READ);
		return 1;
	}
	bootstage_mark(BOOTSTAGE_ID_IDE_READ);

#if CONFIG_IS_ENABLED(FIT)
	/* This cannot be done earlier,
	 * we need complete FIT image in RAM first */
	if (genimg_get_format((void *) addr) == IMAGE_FORMAT_FIT) {
		if (!fit_check_format(fit_hdr)) {
			bootstage_error(BOOTSTAGE_ID_IDE_FIT_READ);
			puts("** Bad FIT image format\n");
			return 1;
		}
		bootstage_mark(BOOTSTAGE_ID_IDE_FIT_READ_OK);
		fit_print_contents(fit_hdr);
	}
#endif

	flush_cache(addr, (cnt+1)*info.blksz);

	/* Loading ok, update default load address */
	load_addr = addr;

	return bootm_maybe_autostart(cmdtp, argv[0]);
}