expo: cedit: Support reading settings from a file
Add a command to read cedit settings from a devicetree file.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/cedit.c b/cmd/cedit.c
index 18cc8ba..a155e08 100644
--- a/cmd/cedit.c
+++ b/cmd/cedit.c
@@ -99,6 +99,43 @@
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 @@
#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),
);