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 sughosh.ganu@linaro.org ---
Changes since V3: * Use the device model api uclass_get_device to probe and get the FWU Metadata device.
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 02c298fdbe..c8eb12e00f 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -137,6 +137,13 @@ 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 e31ac15ef7..b917527965 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -72,6 +72,7 @@ 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; + } + + print_mdata(mdata); + +out: + free(mdata); + return ret; +} + +U_BOOT_CMD( + fwu_mdata_read, 1, 1, do_fwu_mdata_read, + "Read and print FWU metadata", + "" +);