1 files changed, 89 insertions, 0 deletions
diff --git a/cmd/fwu_mdata.c b/cmd/fwu_mdata.c
new file mode 100644
index 00000000000..5b5a2e4d1cd
--- /dev/null
+++ b/cmd/fwu_mdata.c
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2022, Linaro Limited
+ */
+
+#include <command.h>
+#include <dm.h>
+#include <fwu.h>
+#include <fwu_mdata.h>
+#include <hexdump.h>
+#include <log.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <linux/types.h>
+
+static void print_mdata(struct fwu_data *data)
+{
+	int i, j;
+	struct fwu_image_entry *img_entry;
+	struct fwu_image_bank_info *img_info;
+
+	printf("\tFWU Metadata\n");
+	printf("crc32: %#x\n", data->crc32);
+	printf("version: %#x\n", data->version);
+	printf("size: %#x\n", data->metadata_size);
+	printf("active_index: %#x\n", data->active_index);
+	printf("previous_active_index: %#x\n", data->previous_active_index);
+
+	if (data->version == 2) {
+		for (i = 0; i < 4; i++)
+			printf("bank_state[%d]: %#x\n",
+			       i, data->bank_state[i]);
+	}
+
+	printf("\tImage Info\n");
+	for (i = 0; i < CONFIG_FWU_NUM_IMAGES_PER_BANK; i++) {
+		img_entry = &data->fwu_images[i];
+		printf("\nImage Type Guid: %pUL\n",
+		       &img_entry->image_type_guid);
+		printf("Location Guid: %pUL\n", &img_entry->location_guid);
+		for (j = 0; j < CONFIG_FWU_NUM_BANKS; j++) {
+			img_info = &img_entry->img_bank_info[j];
+			printf("Image Guid:  %pUL\n", &img_info->image_guid);
+			printf("Image Acceptance: %s\n",
+			       img_info->accepted == 0x1 ? "yes" : "no");
+		}
+	}
+
+	if (data->version == 2) {
+		struct fwu_mdata *mdata = data->fwu_mdata;
+		struct fwu_fw_store_desc *desc;
+		void *end;
+		u32 diff;
+
+		/*
+		 * fwu_mdata defines only header that's why taking it as array
+		 * which exactly point to image description location
+		 */
+		desc = (struct fwu_fw_store_desc *)&mdata[1];
+
+		/* Number of entries is taken from for loop - variable i */
+		end = &desc->img_entry[i];
+		debug("mdata %p, desc %p, end %p\n", mdata, desc, end);
+
+		diff = data->metadata_size - ((void *)end - (void *)mdata);
+		if (diff) {
+			printf("Custom fields covered by CRC len: 0x%x\n", diff);
+			print_hex_dump_bytes("CUSTOM ", DUMP_PREFIX_OFFSET,
+					     end, diff);
+		}
+	}
+}
+
+int do_fwu_mdata_read(struct cmd_tbl *cmdtp, int flag,
+		     int argc, char * const argv[])
+{
+	struct fwu_data *data = fwu_get_data();
+
+	print_mdata(data);
+
+	return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(
+	fwu_mdata_read,	1,	1,	do_fwu_mdata_read,
+	"Read and print FWU metadata",
+	""
+);