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https://github.com/brain-hackers/u-boot-brain
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![Heiko Schocher](/assets/img/avatar_default.png)
There was for long time no activity in the 8xx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 8xx, so remove it (with a heavy heart, knowing that I remove here the root of U-Boot). Signed-off-by: Heiko Schocher <hs@denx.de>
186 lines
4.0 KiB
C
186 lines
4.0 KiB
C
/*
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* (C) Copyright 2001
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* Kyle Harris, kharris@nexus-tech.net
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* The "source" command allows to define "script images", i. e. files
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* that contain command sequences that can be executed by the command
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* interpreter. It returns the exit status of the last command
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* executed from the script. This is very similar to running a shell
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* script in a UNIX shell, hence the name for the command.
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*/
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/* #define DEBUG */
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#include <common.h>
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#include <command.h>
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#include <image.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <asm/byteorder.h>
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#include <asm/io.h>
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int
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source (ulong addr, const char *fit_uname)
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{
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ulong len;
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
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const image_header_t *hdr;
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#endif
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u32 *data;
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int verify;
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void *buf;
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#if defined(CONFIG_FIT)
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const void* fit_hdr;
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int noffset;
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const void *fit_data;
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size_t fit_len;
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#endif
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verify = getenv_yesno ("verify");
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buf = map_sysmem(addr, 0);
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switch (genimg_get_format(buf)) {
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
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case IMAGE_FORMAT_LEGACY:
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hdr = buf;
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if (!image_check_magic (hdr)) {
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puts ("Bad magic number\n");
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return 1;
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}
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if (!image_check_hcrc (hdr)) {
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puts ("Bad header crc\n");
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return 1;
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}
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if (verify) {
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if (!image_check_dcrc (hdr)) {
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puts ("Bad data crc\n");
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return 1;
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}
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}
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if (!image_check_type (hdr, IH_TYPE_SCRIPT)) {
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puts ("Bad image type\n");
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return 1;
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}
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/* get length of script */
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data = (u32 *)image_get_data (hdr);
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if ((len = uimage_to_cpu (*data)) == 0) {
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puts ("Empty Script\n");
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return 1;
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}
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/*
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* scripts are just multi-image files with one component, seek
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* past the zero-terminated sequence of image lengths to get
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* to the actual image data
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*/
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while (*data++);
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break;
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#endif
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#if defined(CONFIG_FIT)
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case IMAGE_FORMAT_FIT:
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if (fit_uname == NULL) {
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puts ("No FIT subimage unit name\n");
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return 1;
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}
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fit_hdr = buf;
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if (!fit_check_format (fit_hdr)) {
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puts ("Bad FIT image format\n");
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return 1;
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}
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/* get script component image node offset */
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noffset = fit_image_get_node (fit_hdr, fit_uname);
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if (noffset < 0) {
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printf ("Can't find '%s' FIT subimage\n", fit_uname);
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return 1;
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}
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if (!fit_image_check_type (fit_hdr, noffset, IH_TYPE_SCRIPT)) {
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puts ("Not a image image\n");
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return 1;
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}
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/* verify integrity */
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if (verify) {
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if (!fit_image_verify(fit_hdr, noffset)) {
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puts ("Bad Data Hash\n");
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return 1;
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}
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}
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/* get script subimage data address and length */
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if (fit_image_get_data (fit_hdr, noffset, &fit_data, &fit_len)) {
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puts ("Could not find script subimage data\n");
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return 1;
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}
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data = (u32 *)fit_data;
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len = (ulong)fit_len;
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break;
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#endif
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default:
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puts ("Wrong image format for \"source\" command\n");
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return 1;
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}
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debug ("** Script length: %ld\n", len);
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return run_command_list((char *)data, len, 0);
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}
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/**************************************************/
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#if defined(CONFIG_CMD_SOURCE)
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static int do_source(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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ulong addr;
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int rcode;
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const char *fit_uname = NULL;
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/* Find script image */
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if (argc < 2) {
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addr = CONFIG_SYS_LOAD_ADDR;
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debug ("* source: default load address = 0x%08lx\n", addr);
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#if defined(CONFIG_FIT)
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} else if (fit_parse_subimage (argv[1], load_addr, &addr, &fit_uname)) {
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debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
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fit_uname, addr);
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#endif
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} else {
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addr = simple_strtoul(argv[1], NULL, 16);
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debug ("* source: cmdline image address = 0x%08lx\n", addr);
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}
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printf ("## Executing script at %08lx\n", addr);
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rcode = source (addr, fit_uname);
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return rcode;
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}
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#ifdef CONFIG_SYS_LONGHELP
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static char source_help_text[] =
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"[addr]\n"
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"\t- run script starting at addr\n"
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"\t- A valid image header must be present"
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#if defined(CONFIG_FIT)
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"\n"
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"For FIT format uImage addr must include subimage\n"
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"unit name in the form of addr:<subimg_uname>"
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#endif
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"";
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#endif
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U_BOOT_CMD(
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source, 2, 0, do_source,
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"run script from memory", source_help_text
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);
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#endif
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