feat(plat/st): use FIP to load images
BL2 still uses the STM32 header binary format to be loaded from ROM code.
BL32 and BL33 and their respective device tree files are now put together
in a FIP file.
One DTB is created for each BL. To reduce their sizes, 2 new dtsi file are
in charge of removing useless nodes for a given BL. This is done because
BL2 and BL32 share the same device tree files base.
The previous way of booting is still available, the compilation flag
STM32MP_USE_STM32IMAGE has to be set to 1 in the make command. Some files
are duplicated and their names modified with _stm32_ to avoid too much
switches in the code.
Change-Id: I1ffada0af58486d4cf6044511b51e56b52269817
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
diff --git a/plat/st/stm32mp1/plat_bl2_stm32_mem_params_desc.c b/plat/st/stm32mp1/plat_bl2_stm32_mem_params_desc.c
new file mode 100644
index 0000000..4fce55a
--- /dev/null
+++ b/plat/st/stm32mp1/plat_bl2_stm32_mem_params_desc.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2016-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/bl_common.h>
+#include <common/desc_image_load.h>
+#include <plat/common/platform.h>
+
+#include <platform_def.h>
+
+/*******************************************************************************
+ * Following descriptor provides BL image/ep information that gets used
+ * by BL2 to load the images and also subset of this information is
+ * passed to next BL image. The image loading sequence is managed by
+ * populating the images in required loading order. The image execution
+ * sequence is managed by populating the `next_handoff_image_id` with
+ * the next executable image id.
+ ******************************************************************************/
+static bl_mem_params_node_t bl2_mem_params_descs[] = {
+ /* Fill BL32 related information */
+ {
+ .image_id = BL32_IMAGE_ID,
+
+ SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+ VERSION_2, entry_point_info_t,
+ SECURE | EXECUTABLE | EP_FIRST_EXE),
+
+ /* Updated at runtime if OP-TEE is loaded */
+ .ep_info.pc = STM32MP_BL32_BASE,
+
+ .ep_info.spsr = SPSR_MODE32(MODE32_svc, SPSR_T_ARM,
+ SPSR_E_LITTLE,
+ DISABLE_ALL_EXCEPTIONS),
+
+ SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+ VERSION_2, image_info_t,
+ IMAGE_ATTRIB_PLAT_SETUP),
+
+ /* Updated at runtime if OP-TEE is loaded */
+ .image_info.image_base = STM32MP_BL32_BASE,
+ .image_info.image_max_size = STM32MP_BL32_SIZE,
+
+ .next_handoff_image_id = BL33_IMAGE_ID,
+ },
+
+#if defined(AARCH32_SP_OPTEE)
+ /* Fill BL32 external 1 image related information */
+ {
+ .image_id = BL32_EXTRA1_IMAGE_ID,
+
+ SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+ VERSION_2, entry_point_info_t,
+ SECURE | NON_EXECUTABLE),
+
+ SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+ VERSION_2, image_info_t,
+ IMAGE_ATTRIB_SKIP_LOADING),
+
+ .next_handoff_image_id = INVALID_IMAGE_ID,
+ },
+ /* Fill BL32 external 2 image related information */
+ {
+ .image_id = BL32_EXTRA2_IMAGE_ID,
+
+ SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+ VERSION_2, entry_point_info_t,
+ SECURE | NON_EXECUTABLE),
+
+ SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+ VERSION_2, image_info_t,
+ IMAGE_ATTRIB_SKIP_LOADING),
+
+ .next_handoff_image_id = INVALID_IMAGE_ID,
+ },
+#endif /* AARCH32_SP_OPTEE */
+
+ /* Fill BL33 related information */
+ {
+ .image_id = BL33_IMAGE_ID,
+
+ SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,
+ VERSION_2, entry_point_info_t,
+ NON_SECURE | EXECUTABLE),
+
+ .ep_info.pc = PLAT_STM32MP_NS_IMAGE_OFFSET,
+ .ep_info.spsr = SPSR_MODE32(MODE32_svc, SPSR_T_ARM,
+ SPSR_E_LITTLE,
+ DISABLE_ALL_EXCEPTIONS),
+
+ SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,
+ VERSION_2, image_info_t, 0U),
+
+ .image_info.image_base = PLAT_STM32MP_NS_IMAGE_OFFSET,
+ .image_info.image_max_size = STM32MP_DDR_MAX_SIZE -
+ (PLAT_STM32MP_NS_IMAGE_OFFSET - STM32MP_DDR_BASE),
+
+ .next_handoff_image_id = INVALID_IMAGE_ID,
+ }
+};
+
+REGISTER_BL_IMAGE_DESCS(bl2_mem_params_descs)