On 6/9/22 14:29, Sughosh Ganu wrote:
Add a command to read the metadata as specified in the FWU
specification and print the fields of the metadata.
Signed-off-by: Sughosh Ganu <[email protected]>
---
cmd/Kconfig | 7 +++++
cmd/Makefile | 1 +
cmd/fwu_mdata.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 82 insertions(+)
create mode 100644 cmd/fwu_mdata.c
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 09193b61b9..275becd837 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -144,6 +144,13 @@ config CMD_CPU
internal name) and clock frequency. Other information may be
available depending on the CPU driver.
+config CMD_FWU_METADATA
+ bool "fwu metadata read"
+ depends on FWU_MULTI_BANK_UPDATE
+ default y if FWU_MULTI_BANK_UPDATE
+ help
+ Command to read the metadata and dump it's contents
+
config CMD_LICENSE
bool "license"
select BUILD_BIN2C
diff --git a/cmd/Makefile b/cmd/Makefile
index 5e43a1e022..259a93bc65 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -76,6 +76,7 @@ obj-$(CONFIG_CMD_FPGA) += fpga.o
obj-$(CONFIG_CMD_FPGAD) += fpgad.o
obj-$(CONFIG_CMD_FS_GENERIC) += fs.o
obj-$(CONFIG_CMD_FUSE) += fuse.o
+obj-$(CONFIG_CMD_FWU_METADATA) += fwu_mdata.o
obj-$(CONFIG_CMD_GETTIME) += gettime.o
obj-$(CONFIG_CMD_GPIO) += gpio.o
obj-$(CONFIG_CMD_HVC) += smccc.o
diff --git a/cmd/fwu_mdata.c b/cmd/fwu_mdata.c
new file mode 100644
index 0000000000..bc20ca26a3
--- /dev/null
+++ b/cmd/fwu_mdata.c
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022, Linaro Limited
+ */
+
+#include <command.h>
+#include <dm.h>
+#include <fwu.h>
+#include <fwu_mdata.h>
+#include <log.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <linux/types.h>
+
+static void print_mdata(struct fwu_mdata *mdata)
+{
+ int i, j;
+ struct fwu_image_entry *img_entry;
+ struct fwu_image_bank_info *img_info;
+ u32 nimages, nbanks;
+
+ printf("\tFWU Metadata\n");
+ printf("crc32: %#x\n", mdata->crc32);
+ printf("version: %#x\n", mdata->version);
+ printf("active_index: %#x\n", mdata->active_index);
+ printf("previous_active_index: %#x\n", mdata->previous_active_index);
+
+ nimages = CONFIG_FWU_NUM_IMAGES_PER_BANK;
+ nbanks = CONFIG_FWU_NUM_BANKS;
+ printf("\tImage Info\n");
+ for (i = 0; i < nimages; i++) {
+ img_entry = &mdata->img_entry[i];
+ printf("\nImage Type Guid: %pUL\n",
&img_entry->image_type_uuid);
+ printf("Location Guid: %pUL\n", &img_entry->location_uuid);
+ for (j = 0; j < nbanks; j++) {
+ img_info = &img_entry->img_bank_info[j];
+ printf("Image Guid: %pUL\n", &img_info->image_uuid);
+ printf("Image Acceptance: %#x\n", img_info->accepted);
+ }
+ }
+}
+
+int do_fwu_mdata_read(struct cmd_tbl *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ struct udevice *dev;
+ int ret = CMD_RET_SUCCESS;
+ struct fwu_mdata *mdata = NULL;
+
+ if (uclass_get_device(UCLASS_FWU_MDATA, 0, &dev) || !dev) {
+ log_err("Unable to get FWU metadata device\n");
+ return CMD_RET_FAILURE;
+ }
+
+ ret = fwu_get_mdata(&mdata);
+ if (ret < 0) {
+ log_err("Unable to get valid FWU metadata\n");
+ ret = CMD_RET_FAILURE;
+ goto out;
+ }
I think here would be a need to also check data you get back.
I am playing with it and if I rewrite one copy and second copy is different I
don't get any error message and I think it is wrong.
You should IMHO use mdata_check hooks to check that what you get is correct and
aligned.
Thanks,
Michal
