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expo: cedit: Support reading settings from a file

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Add a command to read cedit settings from a devicetree file.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2023-08-14 16:40:34 -06:00
committed by Tom Rini
parent 2dee81fe5f
commit 472317cb12
5 changed files with 131 additions and 3 deletions
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39
cmd/cedit.c
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@@ -99,6 +99,43 @@ static int do_cedit_write_fdt(struct cmd_tbl *cmdtp, int flag, int argc,
return 0;
}
static int do_cedit_read_fdt(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
const char *fname;
void *buf;
oftree tree;
ulong size;
int ret;
if (argc < 4)
return CMD_RET_USAGE;
fname = argv[3];
ret = fs_load_alloc(argv[1], argv[2], argv[3], SZ_1M, 0, &buf, &size);
if (ret) {
printf("File not found\n");
return CMD_RET_FAILURE;
}
tree = oftree_from_fdt(buf);
if (!oftree_valid(tree)) {
free(buf);
printf("Cannot create oftree\n");
return CMD_RET_FAILURE;
}
ret = cedit_read_settings(cur_exp, tree);
oftree_dispose(tree);
free(buf);
if (ret) {
printf("Failed to read settings: %dE\n", ret);
return CMD_RET_FAILURE;
}
return 0;
}
static int do_cedit_run(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
@@ -128,12 +165,14 @@ static int do_cedit_run(struct cmd_tbl *cmdtp, int flag, int argc,
#ifdef CONFIG_SYS_LONGHELP
static char cedit_help_text[] =
"load <interface> <dev[:part]> <filename> - load config editor\n"
"cedit read_fdt <i/f> <dev[:part]> <filename> - read settings\n"
"cedit write_fdt <i/f> <dev[:part]> <filename> - write settings\n"
"cedit run - run config editor";
#endif /* CONFIG_SYS_LONGHELP */
U_BOOT_CMD_WITH_SUBCMDS(cedit, "Configuration editor", cedit_help_text,
U_BOOT_SUBCMD_MKENT(load, 5, 1, do_cedit_load),
U_BOOT_SUBCMD_MKENT(read_fdt, 5, 1, do_cedit_read_fdt),
U_BOOT_SUBCMD_MKENT(write_fdt, 5, 1, do_cedit_write_fdt),
U_BOOT_SUBCMD_MKENT(run, 1, 1, do_cedit_run),
);