1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2018 Linaro Ltd.
4 * Sam Protsenko <semen.protsenko@linaro.org>
7 #include <image-android-dt.h>
15 static int do_dtimg_dump(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
24 hdr_addr
= simple_strtoul(argv
[1], &endp
, 16);
26 printf("Error: Wrong image address\n");
27 return CMD_RET_FAILURE
;
30 if (!android_dt_check_header(hdr_addr
)) {
31 printf("Error: DT image header is incorrect\n");
32 return CMD_RET_FAILURE
;
35 android_dt_print_contents(hdr_addr
);
37 return CMD_RET_SUCCESS
;
40 static int dtimg_get_fdt(int argc
, char * const argv
[], enum cmd_dtimg_info cmd
)
52 hdr_addr
= simple_strtoul(argv
[1], &endp
, 16);
54 printf("Error: Wrong image address\n");
55 return CMD_RET_FAILURE
;
58 if (!android_dt_check_header(hdr_addr
)) {
59 printf("Error: DT image header is incorrect\n");
60 return CMD_RET_FAILURE
;
63 index
= simple_strtoul(argv
[2], &endp
, 0);
65 printf("Error: Wrong index\n");
66 return CMD_RET_FAILURE
;
69 if (!android_dt_get_fdt_by_index(hdr_addr
, index
, &fdt_addr
, &fdt_size
))
70 return CMD_RET_FAILURE
;
74 snprintf(buf
, sizeof(buf
), "%lx", fdt_addr
);
77 snprintf(buf
, sizeof(buf
), "%x", fdt_size
);
80 printf("Error: Unknown cmd_dtimg_info value: %d\n", cmd
);
81 return CMD_RET_FAILURE
;
84 env_set(argv
[3], buf
);
86 return CMD_RET_SUCCESS
;
89 static int do_dtimg_start(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
92 return dtimg_get_fdt(argc
, argv
, CMD_DTIMG_START
);
95 static int do_dtimg_size(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
98 return dtimg_get_fdt(argc
, argv
, CMD_DTIMG_SIZE
);
101 static cmd_tbl_t cmd_dtimg_sub
[] = {
102 U_BOOT_CMD_MKENT(dump
, 2, 0, do_dtimg_dump
, "", ""),
103 U_BOOT_CMD_MKENT(start
, 4, 0, do_dtimg_start
, "", ""),
104 U_BOOT_CMD_MKENT(size
, 4, 0, do_dtimg_size
, "", ""),
107 static int do_dtimg(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
111 cp
= find_cmd_tbl(argv
[1], cmd_dtimg_sub
, ARRAY_SIZE(cmd_dtimg_sub
));
113 /* Strip off leading 'dtimg' command argument */
117 if (!cp
|| argc
> cp
->maxargs
)
118 return CMD_RET_USAGE
;
119 if (flag
== CMD_FLAG_REPEAT
&& !cmd_is_repeatable(cp
))
120 return CMD_RET_SUCCESS
;
122 return cp
->cmd(cmdtp
, flag
, argc
, argv
);
126 dtimg
, CONFIG_SYS_MAXARGS
, 0, do_dtimg
,
127 "manipulate dtb/dtbo Android image",
129 " - parse specified image and print its structure info\n"
130 " <addr>: image address in RAM, in hex\n"
131 "dtimg start <addr> <index> <varname>\n"
132 " - get address (hex) of FDT in the image, by index\n"
133 " <addr>: image address in RAM, in hex\n"
134 " <index>: index of desired FDT in the image\n"
135 " <varname>: name of variable where to store address of FDT\n"
136 "dtimg size <addr> <index> <varname>\n"
137 " - get size (hex, bytes) of FDT in the image, by index\n"
138 " <addr>: image address in RAM, in hex\n"
139 " <index>: index of desired FDT in the image\n"
140 " <varname>: name of variable where to store size of FDT"