refactor(stm32mp1): remove STM32MP_USE_STM32IMAGE

The code managing legacy boot (without FIP) that was under
STM32MP_USE_STM32IMAGE flag is remove.

Change-Id: I04452453ed84567b0de39e900594a81526562259
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/plat/st/common/bl2_stm32_io_storage.c b/plat/st/common/bl2_stm32_io_storage.c
deleted file mode 100644
index 4391195..0000000
--- a/plat/st/common/bl2_stm32_io_storage.c
+++ /dev/null
@@ -1,667 +0,0 @@
-/*
- * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <assert.h>
-#include <string.h>
-
-#include <arch_helpers.h>
-#include <common/debug.h>
-#include <drivers/io/io_block.h>
-#include <drivers/io/io_driver.h>
-#include <drivers/io/io_dummy.h>
-#include <drivers/io/io_mtd.h>
-#include <drivers/io/io_storage.h>
-#include <drivers/mmc.h>
-#include <drivers/partition/partition.h>
-#include <drivers/raw_nand.h>
-#include <drivers/spi_nand.h>
-#include <drivers/spi_nor.h>
-#include <drivers/st/io_mmc.h>
-#include <drivers/st/io_stm32image.h>
-#include <drivers/st/stm32_fmc2_nand.h>
-#include <drivers/st/stm32_qspi.h>
-#include <drivers/st/stm32_sdmmc2.h>
-#include <lib/mmio.h>
-#include <lib/utils.h>
-#include <plat/common/platform.h>
-
-#include <platform_def.h>
-
-/* IO devices */
-#ifndef AARCH32_SP_OPTEE
-static const io_dev_connector_t *dummy_dev_con;
-static uintptr_t dummy_dev_handle;
-static uintptr_t dummy_dev_spec;
-#endif
-
-static uintptr_t image_dev_handle;
-static uintptr_t storage_dev_handle;
-
-#if STM32MP_SDMMC || STM32MP_EMMC
-static struct mmc_device_info mmc_info;
-static io_block_spec_t gpt_block_spec = {
-	.offset = 0U,
-	.length = 34U * MMC_BLOCK_SIZE, /* Size of GPT table */
-};
-
-static uint32_t block_buffer[MMC_BLOCK_SIZE] __aligned(MMC_BLOCK_SIZE);
-
-static const io_block_dev_spec_t mmc_block_dev_spec = {
-	/* It's used as temp buffer in block driver */
-	.buffer = {
-		.offset = (size_t)&block_buffer,
-		.length = MMC_BLOCK_SIZE,
-	},
-	.ops = {
-		.read = mmc_read_blocks,
-		.write = NULL,
-	},
-	.block_size = MMC_BLOCK_SIZE,
-};
-
-#if STM32MP_EMMC_BOOT
-static io_block_spec_t emmc_boot_ssbl_block_spec = {
-	.offset = PLAT_EMMC_BOOT_SSBL_OFFSET,
-	.length = MMC_BLOCK_SIZE, /* We are interested only in first 4 bytes */
-};
-
-static const io_block_dev_spec_t mmc_block_dev_boot_part_spec = {
-	/* It's used as temp buffer in block driver */
-	.buffer = {
-		.offset = (size_t)&block_buffer,
-		.length = MMC_BLOCK_SIZE,
-	},
-	.ops = {
-		.read = mmc_boot_part_read_blocks,
-		.write = NULL,
-	},
-	.block_size = MMC_BLOCK_SIZE,
-};
-#endif
-
-static struct io_mmc_dev_spec mmc_device_spec = {
-	.use_boot_part = false,
-};
-
-static const io_dev_connector_t *mmc_dev_con;
-#endif /* STM32MP_SDMMC || STM32MP_EMMC */
-
-#if STM32MP_SPI_NOR
-static io_mtd_dev_spec_t spi_nor_dev_spec = {
-	.ops = {
-		.init = spi_nor_init,
-		.read = spi_nor_read,
-	},
-};
-#endif
-
-#if STM32MP_RAW_NAND
-static io_mtd_dev_spec_t nand_dev_spec = {
-	.ops = {
-		.init = nand_raw_init,
-		.read = nand_read,
-	},
-};
-
-static const io_dev_connector_t *nand_dev_con;
-#endif
-
-#if STM32MP_SPI_NAND
-static io_mtd_dev_spec_t spi_nand_dev_spec = {
-	.ops = {
-		.init = spi_nand_init,
-		.read = nand_read,
-	},
-};
-#endif
-
-#if STM32MP_SPI_NAND || STM32MP_SPI_NOR
-static const io_dev_connector_t *spi_dev_con;
-#endif
-
-#ifdef AARCH32_SP_OPTEE
-static const struct stm32image_part_info optee_header_partition_spec = {
-	.name = OPTEE_HEADER_IMAGE_NAME,
-	.binary_type = OPTEE_HEADER_BINARY_TYPE,
-};
-
-static const struct stm32image_part_info optee_core_partition_spec = {
-	.name = OPTEE_CORE_IMAGE_NAME,
-	.binary_type = OPTEE_CORE_BINARY_TYPE,
-};
-
-static const struct stm32image_part_info optee_paged_partition_spec = {
-	.name = OPTEE_PAGED_IMAGE_NAME,
-	.binary_type = OPTEE_PAGED_BINARY_TYPE,
-};
-#else
-static const io_block_spec_t bl32_block_spec = {
-	.offset = BL32_BASE,
-	.length = STM32MP_BL32_SIZE
-};
-#endif
-
-static const struct stm32image_part_info bl33_partition_spec = {
-	.name = BL33_IMAGE_NAME,
-	.binary_type = BL33_BINARY_TYPE,
-};
-
-enum {
-	IMG_IDX_BL33,
-#ifdef AARCH32_SP_OPTEE
-	IMG_IDX_OPTEE_HEADER,
-	IMG_IDX_OPTEE_CORE,
-	IMG_IDX_OPTEE_PAGED,
-#endif
-	IMG_IDX_NUM
-};
-
-static struct stm32image_device_info stm32image_dev_info_spec __unused = {
-	.lba_size = MMC_BLOCK_SIZE,
-	.part_info[IMG_IDX_BL33] = {
-		.name = BL33_IMAGE_NAME,
-		.binary_type = BL33_BINARY_TYPE,
-	},
-#ifdef AARCH32_SP_OPTEE
-	.part_info[IMG_IDX_OPTEE_HEADER] = {
-		.name = OPTEE_HEADER_IMAGE_NAME,
-		.binary_type = OPTEE_HEADER_BINARY_TYPE,
-	},
-	.part_info[IMG_IDX_OPTEE_CORE] = {
-		.name = OPTEE_CORE_IMAGE_NAME,
-		.binary_type = OPTEE_CORE_BINARY_TYPE,
-	},
-	.part_info[IMG_IDX_OPTEE_PAGED] = {
-		.name = OPTEE_PAGED_IMAGE_NAME,
-		.binary_type = OPTEE_PAGED_BINARY_TYPE,
-	},
-#endif
-};
-
-static io_block_spec_t stm32image_block_spec = {
-	.offset = 0U,
-	.length = 0U,
-};
-
-static const io_dev_connector_t *stm32image_dev_con __unused;
-
-#ifndef AARCH32_SP_OPTEE
-static int open_dummy(const uintptr_t spec);
-#endif
-static int open_image(const uintptr_t spec);
-static int open_storage(const uintptr_t spec);
-
-struct plat_io_policy {
-	uintptr_t *dev_handle;
-	uintptr_t image_spec;
-	int (*check)(const uintptr_t spec);
-};
-
-static const struct plat_io_policy policies[] = {
-#ifdef AARCH32_SP_OPTEE
-	[BL32_IMAGE_ID] = {
-		.dev_handle = &image_dev_handle,
-		.image_spec = (uintptr_t)&optee_header_partition_spec,
-		.check = open_image
-	},
-	[BL32_EXTRA1_IMAGE_ID] = {
-		.dev_handle = &image_dev_handle,
-		.image_spec = (uintptr_t)&optee_core_partition_spec,
-		.check = open_image
-	},
-	[BL32_EXTRA2_IMAGE_ID] = {
-		.dev_handle = &image_dev_handle,
-		.image_spec = (uintptr_t)&optee_paged_partition_spec,
-		.check = open_image
-	},
-#else
-	[BL32_IMAGE_ID] = {
-		.dev_handle = &dummy_dev_handle,
-		.image_spec = (uintptr_t)&bl32_block_spec,
-		.check = open_dummy
-	},
-#endif
-	[BL33_IMAGE_ID] = {
-		.dev_handle = &image_dev_handle,
-		.image_spec = (uintptr_t)&bl33_partition_spec,
-		.check = open_image
-	},
-#if STM32MP_SDMMC || STM32MP_EMMC
-	[GPT_IMAGE_ID] = {
-		.dev_handle = &storage_dev_handle,
-		.image_spec = (uintptr_t)&gpt_block_spec,
-		.check = open_storage
-	},
-#endif
-	[STM32_IMAGE_ID] = {
-		.dev_handle = &storage_dev_handle,
-		.image_spec = (uintptr_t)&stm32image_block_spec,
-		.check = open_storage
-	}
-};
-
-#ifndef AARCH32_SP_OPTEE
-static int open_dummy(const uintptr_t spec)
-{
-	return io_dev_init(dummy_dev_handle, 0);
-}
-#endif
-
-static int open_image(const uintptr_t spec)
-{
-	return io_dev_init(image_dev_handle, 0);
-}
-
-static int open_storage(const uintptr_t spec)
-{
-	return io_dev_init(storage_dev_handle, 0);
-}
-
-#if STM32MP_EMMC_BOOT
-static uint32_t get_boot_part_ssbl_header(void)
-{
-	uint32_t magic = 0U;
-	int io_result;
-	size_t bytes_read;
-
-	io_result = register_io_dev_block(&mmc_dev_con);
-	if (io_result != 0) {
-		panic();
-	}
-
-	io_result = io_dev_open(mmc_dev_con, (uintptr_t)&mmc_block_dev_boot_part_spec,
-				&storage_dev_handle);
-	assert(io_result == 0);
-
-	io_result = io_open(storage_dev_handle, (uintptr_t)&emmc_boot_ssbl_block_spec,
-			    &image_dev_handle);
-	assert(io_result == 0);
-
-	io_result = io_read(image_dev_handle, (uintptr_t)&magic, sizeof(magic),
-			    &bytes_read);
-	assert(io_result == 0);
-	assert(bytes_read == sizeof(magic));
-
-	io_result = io_dev_close(storage_dev_handle);
-	assert(io_result == 0);
-
-	return magic;
-}
-#endif
-
-static void print_boot_device(boot_api_context_t *boot_context)
-{
-	switch (boot_context->boot_interface_selected) {
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_SD:
-		INFO("Using SDMMC\n");
-		break;
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_EMMC:
-		INFO("Using EMMC\n");
-		break;
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NOR_QSPI:
-		INFO("Using QSPI NOR\n");
-		break;
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_FMC:
-		INFO("Using FMC NAND\n");
-		break;
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_QSPI:
-		INFO("Using SPI NAND\n");
-		break;
-	default:
-		ERROR("Boot interface not found\n");
-		panic();
-		break;
-	}
-
-	if (boot_context->boot_interface_instance != 0U) {
-		INFO("  Instance %d\n", boot_context->boot_interface_instance);
-	}
-}
-
-static void stm32image_io_setup(void)
-{
-	int io_result __unused;
-
-	io_result = register_io_dev_stm32image(&stm32image_dev_con);
-	assert(io_result == 0);
-
-	io_result = io_dev_open(stm32image_dev_con,
-				(uintptr_t)&stm32image_dev_info_spec,
-				&image_dev_handle);
-	assert(io_result == 0);
-}
-
-#if STM32MP_SDMMC || STM32MP_EMMC
-static void boot_mmc(enum mmc_device_type mmc_dev_type,
-		     uint16_t boot_interface_instance)
-{
-	int io_result __unused;
-	uint8_t idx;
-	struct stm32image_part_info *part;
-	struct stm32_sdmmc2_params params;
-	const partition_entry_t *entry __unused;
-	uint32_t magic __unused;
-
-	zeromem(&params, sizeof(struct stm32_sdmmc2_params));
-
-	mmc_info.mmc_dev_type = mmc_dev_type;
-
-	switch (boot_interface_instance) {
-	case 1:
-		params.reg_base = STM32MP_SDMMC1_BASE;
-		break;
-	case 2:
-		params.reg_base = STM32MP_SDMMC2_BASE;
-		break;
-	case 3:
-		params.reg_base = STM32MP_SDMMC3_BASE;
-		break;
-	default:
-		WARN("SDMMC instance not found, using default\n");
-		if (mmc_dev_type == MMC_IS_SD) {
-			params.reg_base = STM32MP_SDMMC1_BASE;
-		} else {
-			params.reg_base = STM32MP_SDMMC2_BASE;
-		}
-		break;
-	}
-
-	params.device_info = &mmc_info;
-	if (stm32_sdmmc2_mmc_init(&params) != 0) {
-		ERROR("SDMMC%u init failed\n", boot_interface_instance);
-		panic();
-	}
-
-	stm32image_dev_info_spec.device_size =
-		stm32_sdmmc2_mmc_get_device_size();
-
-#if STM32MP_EMMC_BOOT
-	if (mmc_dev_type == MMC_IS_EMMC) {
-		magic = get_boot_part_ssbl_header();
-
-		if (magic == BOOT_API_IMAGE_HEADER_MAGIC_NB) {
-			VERBOSE("%s, header found, jump to emmc load\n", __func__);
-			idx = IMG_IDX_BL33;
-			part = &stm32image_dev_info_spec.part_info[idx];
-			part->part_offset = PLAT_EMMC_BOOT_SSBL_OFFSET;
-			part->bkp_offset = 0U;
-			mmc_device_spec.use_boot_part = true;
-
-			goto emmc_boot;
-		} else {
-			WARN("%s: Can't find STM32 header on a boot partition\n", __func__);
-		}
-	}
-#endif
-
-	/* Open MMC as a block device to read GPT table */
-	io_result = register_io_dev_block(&mmc_dev_con);
-	if (io_result != 0) {
-		panic();
-	}
-
-	io_result = io_dev_open(mmc_dev_con, (uintptr_t)&mmc_block_dev_spec,
-				&storage_dev_handle);
-	assert(io_result == 0);
-
-	partition_init(GPT_IMAGE_ID);
-
-	io_result = io_dev_close(storage_dev_handle);
-	assert(io_result == 0);
-
-	for (idx = 0U; idx < IMG_IDX_NUM; idx++) {
-		part = &stm32image_dev_info_spec.part_info[idx];
-		entry = get_partition_entry(part->name);
-		if (entry == NULL) {
-			ERROR("Partition %s not found\n", part->name);
-			panic();
-		}
-
-		part->part_offset = entry->start;
-		part->bkp_offset = 0U;
-	}
-
-#if STM32MP_EMMC_BOOT
-emmc_boot:
-#endif
-	/*
-	 * Re-open MMC with io_mmc, for better perfs compared to
-	 * io_block.
-	 */
-	io_result = register_io_dev_mmc(&mmc_dev_con);
-	assert(io_result == 0);
-
-	io_result = io_dev_open(mmc_dev_con, (uintptr_t)&mmc_device_spec,
-				&storage_dev_handle);
-	assert(io_result == 0);
-}
-#endif /* STM32MP_SDMMC || STM32MP_EMMC */
-
-#if STM32MP_SPI_NOR
-static void boot_spi_nor(boot_api_context_t *boot_context)
-{
-	int io_result __unused;
-	uint8_t idx;
-	struct stm32image_part_info *part;
-
-	io_result = stm32_qspi_init();
-	assert(io_result == 0);
-
-	io_result = register_io_dev_mtd(&spi_dev_con);
-	assert(io_result == 0);
-
-	/* Open connections to device */
-	io_result = io_dev_open(spi_dev_con,
-				(uintptr_t)&spi_nor_dev_spec,
-				&storage_dev_handle);
-	assert(io_result == 0);
-
-	stm32image_dev_info_spec.device_size = spi_nor_dev_spec.device_size;
-
-	idx = IMG_IDX_BL33;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NOR_BL33_OFFSET;
-	part->bkp_offset = 0U;
-
-#ifdef AARCH32_SP_OPTEE
-	idx = IMG_IDX_OPTEE_HEADER;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NOR_TEEH_OFFSET;
-	part->bkp_offset = 0U;
-
-	idx = IMG_IDX_OPTEE_PAGED;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NOR_TEED_OFFSET;
-	part->bkp_offset = 0U;
-
-	idx = IMG_IDX_OPTEE_CORE;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NOR_TEEX_OFFSET;
-	part->bkp_offset = 0U;
-#endif
-}
-#endif /* STM32MP_SPI_NOR */
-
-#if STM32MP_RAW_NAND
-static void boot_fmc2_nand(boot_api_context_t *boot_context)
-{
-	int io_result __unused;
-	uint8_t idx;
-	struct stm32image_part_info *part;
-
-	io_result = stm32_fmc2_init();
-	assert(io_result == 0);
-
-	/* Register the IO device on this platform */
-	io_result = register_io_dev_mtd(&nand_dev_con);
-	assert(io_result == 0);
-
-	/* Open connections to device */
-	io_result = io_dev_open(nand_dev_con, (uintptr_t)&nand_dev_spec,
-				&storage_dev_handle);
-	assert(io_result == 0);
-
-	stm32image_dev_info_spec.device_size = nand_dev_spec.device_size;
-
-	idx = IMG_IDX_BL33;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_BL33_OFFSET;
-	part->bkp_offset = nand_dev_spec.erase_size;
-
-#ifdef AARCH32_SP_OPTEE
-	idx = IMG_IDX_OPTEE_HEADER;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_TEEH_OFFSET;
-	part->bkp_offset = nand_dev_spec.erase_size;
-
-	idx = IMG_IDX_OPTEE_PAGED;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_TEED_OFFSET;
-	part->bkp_offset = nand_dev_spec.erase_size;
-
-	idx = IMG_IDX_OPTEE_CORE;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_TEEX_OFFSET;
-	part->bkp_offset = nand_dev_spec.erase_size;
-#endif
-}
-#endif /* STM32MP_RAW_NAND */
-
-#if STM32MP_SPI_NAND
-static void boot_spi_nand(boot_api_context_t *boot_context)
-{
-	int io_result __unused;
-	uint8_t idx;
-	struct stm32image_part_info *part;
-
-	io_result = stm32_qspi_init();
-	assert(io_result == 0);
-
-	io_result = register_io_dev_mtd(&spi_dev_con);
-	assert(io_result == 0);
-
-	/* Open connections to device */
-	io_result = io_dev_open(spi_dev_con,
-				(uintptr_t)&spi_nand_dev_spec,
-				&storage_dev_handle);
-	assert(io_result == 0);
-
-	stm32image_dev_info_spec.device_size =
-		spi_nand_dev_spec.device_size;
-
-	idx = IMG_IDX_BL33;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_BL33_OFFSET;
-	part->bkp_offset = spi_nand_dev_spec.erase_size;
-
-#ifdef AARCH32_SP_OPTEE
-	idx = IMG_IDX_OPTEE_HEADER;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_TEEH_OFFSET;
-	part->bkp_offset = spi_nand_dev_spec.erase_size;
-
-	idx = IMG_IDX_OPTEE_PAGED;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_TEED_OFFSET;
-	part->bkp_offset = spi_nand_dev_spec.erase_size;
-
-	idx = IMG_IDX_OPTEE_CORE;
-	part = &stm32image_dev_info_spec.part_info[idx];
-	part->part_offset = STM32MP_NAND_TEEX_OFFSET;
-	part->bkp_offset = spi_nand_dev_spec.erase_size;
-#endif
-}
-#endif /* STM32MP_SPI_NAND */
-
-void stm32mp_io_setup(void)
-{
-	int io_result __unused;
-	boot_api_context_t *boot_context =
-		(boot_api_context_t *)stm32mp_get_boot_ctx_address();
-
-	print_boot_device(boot_context);
-
-	if ((boot_context->boot_partition_used_toboot == 1U) ||
-	    (boot_context->boot_partition_used_toboot == 2U)) {
-		INFO("Boot used partition fsbl%u\n",
-		     boot_context->boot_partition_used_toboot);
-	}
-
-#ifndef AARCH32_SP_OPTEE
-	io_result = register_io_dev_dummy(&dummy_dev_con);
-	assert(io_result == 0);
-
-	io_result = io_dev_open(dummy_dev_con, dummy_dev_spec,
-				&dummy_dev_handle);
-	assert(io_result == 0);
-#endif
-
-	switch (boot_context->boot_interface_selected) {
-#if STM32MP_SDMMC
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_SD:
-		dmbsy();
-		boot_mmc(MMC_IS_SD, boot_context->boot_interface_instance);
-		stm32image_io_setup();
-		break;
-#endif
-#if STM32MP_EMMC
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_EMMC:
-		dmbsy();
-		boot_mmc(MMC_IS_EMMC, boot_context->boot_interface_instance);
-		stm32image_io_setup();
-		break;
-#endif
-#if STM32MP_SPI_NOR
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NOR_QSPI:
-		dmbsy();
-		boot_spi_nor(boot_context);
-		stm32image_io_setup();
-		break;
-#endif
-#if STM32MP_RAW_NAND
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_FMC:
-		dmbsy();
-		boot_fmc2_nand(boot_context);
-		stm32image_io_setup();
-		break;
-#endif
-#if STM32MP_SPI_NAND
-	case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_QSPI:
-		dmbsy();
-		boot_spi_nand(boot_context);
-		stm32image_io_setup();
-		break;
-#endif
-
-	default:
-		ERROR("Boot interface %d not supported\n",
-		      boot_context->boot_interface_selected);
-		panic();
-		break;
-	}
-}
-
-/*
- * Return an IO device handle and specification which can be used to access
- * an image. Use this to enforce platform load policy.
- */
-int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
-			  uintptr_t *image_spec)
-{
-	int rc;
-	const struct plat_io_policy *policy;
-
-	assert(image_id < ARRAY_SIZE(policies));
-
-	policy = &policies[image_id];
-	rc = policy->check(policy->image_spec);
-	if (rc == 0) {
-		*image_spec = policy->image_spec;
-		*dev_handle = *(policy->dev_handle);
-	}
-
-	return rc;
-}
diff --git a/plat/st/common/include/stm32mp_common.h b/plat/st/common/include/stm32mp_common.h
index b8f6daf..a5316b6 100644
--- a/plat/st/common/include/stm32mp_common.h
+++ b/plat/st/common/include/stm32mp_common.h
@@ -120,10 +120,10 @@
 /* Functions to save and get boot authentication status and partition used */
 void stm32_save_boot_auth(uint32_t auth_status, uint32_t boot_partition);
 
-#if !STM32MP_USE_STM32IMAGE && PSA_FWU_SUPPORT
+#if PSA_FWU_SUPPORT
 void stm32mp1_fwu_set_boot_idx(void);
 uint32_t stm32_get_and_dec_fwu_trial_boot_cnt(void);
 void stm32_set_max_fwu_trial_boot_cnt(void);
-#endif /* !STM32MP_USE_STM32IMAGE && PSA_FWU_SUPPORT */
+#endif /* PSA_FWU_SUPPORT */
 
 #endif /* STM32MP_COMMON_H */
diff --git a/plat/st/common/stm32mp_common.c b/plat/st/common/stm32mp_common.c
index eee983f..bb56bac 100644
--- a/plat/st/common/stm32mp_common.c
+++ b/plat/st/common/stm32mp_common.c
@@ -85,43 +85,6 @@
 	return (read_sctlr() & c_m_bits) == c_m_bits;
 }
 
-#if STM32MP_USE_STM32IMAGE
-int stm32mp_check_header(boot_api_image_header_t *header, uintptr_t buffer)
-{
-	uint32_t i;
-	uint32_t img_checksum = 0U;
-
-	/*
-	 * Check header/payload validity:
-	 *	- Header magic
-	 *	- Header version
-	 *	- Payload checksum
-	 */
-	if (header->magic != BOOT_API_IMAGE_HEADER_MAGIC_NB) {
-		ERROR("Header magic\n");
-		return -EINVAL;
-	}
-
-	if ((header->header_version & HEADER_VERSION_MAJOR_MASK) !=
-	    (BOOT_API_HEADER_VERSION & HEADER_VERSION_MAJOR_MASK)) {
-		ERROR("Header version\n");
-		return -EINVAL;
-	}
-
-	for (i = 0U; i < header->image_length; i++) {
-		img_checksum += *(uint8_t *)(buffer + i);
-	}
-
-	if (header->payload_checksum != img_checksum) {
-		ERROR("Checksum: 0x%x (awaited: 0x%x)\n", img_checksum,
-		      header->payload_checksum);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-#endif /* STM32MP_USE_STM32IMAGE */
-
 int stm32mp_map_ddr_non_cacheable(void)
 {
 	return  mmap_add_dynamic_region(STM32MP_DDR_BASE, STM32MP_DDR_BASE,