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// SPDX-License-Identifier: GPL-2.0-only
/*
* of_fixup.c - List and remove OF fixups
*/
#include <common.h>
#include <kallsyms.h>
#include <of.h>
#include <command.h>
#include <malloc.h>
#include <complete.h>
#include <getopt.h>
#include <string.h>
static int do_of_fixup(int argc, char *argv[])
{
struct of_fixup *of_fixup;
int opt, enable = -1;
bool did_fixup = false;
while ((opt = getopt(argc, argv, "ed")) > 0) {
switch (opt) {
case 'e':
enable = 1;
break;
case 'd':
enable = 0;
break;
default:
return COMMAND_ERROR_USAGE;
}
}
argv += optind;
argc -= optind;
if ((enable < 0 && argc > 0) || (enable >= 0 && argc == 0))
return COMMAND_ERROR_USAGE;
list_for_each_entry(of_fixup, &of_fixup_list, list) {
int i;
ulong addr = (ulong)of_fixup->fixup;
char sym[KSYM_SYMBOL_LEN];
const char *name;
name = kallsyms_lookup(addr, NULL, NULL, NULL, sym);
if (!name) {
sprintf(sym, "<0x%lx>", addr);
name = sym;
}
if (enable == -1) {
printf("%s(0x%p)%s\n", name, of_fixup->context,
of_fixup->disabled ? " [DISABLED]" : "");
continue;
}
for (i = 0; i < argc; i++) {
if (strcmp(name, argv[i]) != 0)
continue;
of_fixup->disabled = !enable;
did_fixup = true;
}
}
if (argc && !did_fixup) {
printf("none of the specified fixups found\n");
return -EINVAL;
}
return 0;
}
BAREBOX_CMD_HELP_START(of_fixup)
BAREBOX_CMD_HELP_TEXT("Disable or re-enable an already registered fixup for the device tree.")
BAREBOX_CMD_HELP_TEXT("Call without arguments to list all fixups")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT("-d", "disable fixup")
BAREBOX_CMD_HELP_OPT("-e", "re-enable fixup")
BAREBOX_CMD_HELP_OPT("fixups", "List of fixups to enable or disable")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(of_fixup)
.cmd = do_of_fixup,
BAREBOX_CMD_DESC("list and enable/disable fixups")
BAREBOX_CMD_OPTS("[-de] [fixups...]")
BAREBOX_CMD_GROUP(CMD_GRP_MISC)
BAREBOX_CMD_COMPLETE(empty_complete)
BAREBOX_CMD_HELP(cmd_of_fixup_help)
BAREBOX_CMD_END
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