bootstd: Add a simple command to list images
Add a new 'bootstd images' command, which lists the images which have
been loaded.
Update some existing tests to use it. Provide some documentation about
images in general and this command in particular.
Use a more realistic kernel command-line to make the test easier to
follow.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/bootstd.c b/cmd/bootstd.c
new file mode 100644
index 0000000..e1d8274
--- /dev/null
+++ b/cmd/bootstd.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 'bootstd' command
+ *
+ * Copyright 2024 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <bootdev.h>
+#include <bootflow.h>
+#include <bootmeth.h>
+#include <bootstd.h>
+#include <command.h>
+#include <dm.h>
+#include <malloc.h>
+#include <dm/uclass-internal.h>
+
+static int do_bootstd_images(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ const struct bootflow *bflow;
+ struct bootstd_priv *std;
+ int ret, i;
+
+ ret = bootstd_get_priv(&std);
+ if (ret) {
+ printf("Cannot get bootstd (err=%d)\n", ret);
+ return CMD_RET_FAILURE;
+ }
+
+ printf("Seq Bootflow Type At Size Filename\n");
+ printf("--- ------------------- -------------- -------- -------- ----------------\n");
+
+ /*
+ * Use the ordering if we have one, so long as we are not trying to list
+ * all bootmethds
+ */
+ i = 0;
+ alist_for_each(bflow, &std->bootflows) {
+ const struct bootflow_img *img;
+
+ alist_for_each(img, &bflow->images) {
+ printf("%3d %-20.20s %-15.15s ",
+ bootflow_get_seq(bflow), bflow->name,
+ bootflow_img_type_name(img->type));
+ if (img->addr)
+ printf("%8lx", img->addr);
+ else
+ printf("%8s", "-");
+ printf(" %8lx %s\n", img->size, img->fname);
+ i++;
+ }
+ }
+
+ printf("--- ------------------- -------------- -------- -------- ----------------\n");
+ printf("(%d image%s)\n", i, i != 1 ? "s" : "");
+
+ return 0;
+}
+
+U_BOOT_LONGHELP(bootstd,
+ "images - list loaded images");
+
+U_BOOT_CMD_WITH_SUBCMDS(bootstd, "Standard-boot operation", bootstd_help_text,
+ U_BOOT_SUBCMD_MKENT(images, 1, 1, do_bootstd_images));