diff options
Diffstat (limited to 'plat')
| -rw-r--r-- | plat/st/common/include/stm32mp_common.h | 6 | ||||
| -rw-r--r-- | plat/st/common/stm32mp_common.c | 16 | ||||
| -rw-r--r-- | plat/st/stm32mp1/bl2_plat_setup.c | 34 | ||||
| -rw-r--r-- | plat/st/stm32mp1/plat_image_load.c | 11 | ||||
| -rw-r--r-- | plat/st/stm32mp1/platform.mk | 7 |
5 files changed, 53 insertions, 21 deletions
diff --git a/plat/st/common/include/stm32mp_common.h b/plat/st/common/include/stm32mp_common.h index 4f8567979..27ddab0c8 100644 --- a/plat/st/common/include/stm32mp_common.h +++ b/plat/st/common/include/stm32mp_common.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2018-2019, STMicroelectronics - All Rights Reserved + * Copyright (C) 2018-2020, STMicroelectronics - All Rights Reserved * * SPDX-License-Identifier: BSD-3-Clause */ @@ -87,4 +87,8 @@ void stm32mp_io_setup(void); */ int stm32mp_check_header(boot_api_image_header_t *header, uintptr_t buffer); +/* Functions to map DDR in MMU with non-cacheable attribute, and unmap it */ +int stm32mp_map_ddr_non_cacheable(void); +int stm32mp_unmap_ddr(void); + #endif /* STM32MP_COMMON_H */ diff --git a/plat/st/common/stm32mp_common.c b/plat/st/common/stm32mp_common.c index afa87f487..9af156457 100644 --- a/plat/st/common/stm32mp_common.c +++ b/plat/st/common/stm32mp_common.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -12,6 +12,7 @@ #include <arch_helpers.h> #include <common/debug.h> #include <drivers/st/stm32mp_clkfunc.h> +#include <lib/xlat_tables/xlat_tables_v2.h> #include <plat/common/platform.h> uintptr_t plat_get_ns_image_entrypoint(void) @@ -151,3 +152,16 @@ int stm32mp_check_header(boot_api_image_header_t *header, uintptr_t buffer) return 0; } + +int stm32mp_map_ddr_non_cacheable(void) +{ + return mmap_add_dynamic_region(STM32MP_DDR_BASE, STM32MP_DDR_BASE, + STM32MP_DDR_MAX_SIZE, + MT_NON_CACHEABLE | MT_RW | MT_NS); +} + +int stm32mp_unmap_ddr(void) +{ + return mmap_remove_dynamic_region(STM32MP_DDR_BASE, + STM32MP_DDR_MAX_SIZE); +} diff --git a/plat/st/stm32mp1/bl2_plat_setup.c b/plat/st/stm32mp1/bl2_plat_setup.c index 024dbe076..4a77cd94b 100644 --- a/plat/st/stm32mp1/bl2_plat_setup.c +++ b/plat/st/stm32mp1/bl2_plat_setup.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -130,6 +130,7 @@ void bl2_el3_early_platform_setup(u_register_t arg0, void bl2_platform_setup(void) { int ret; + uint32_t ddr_ns_size; if (dt_pmic_status() > 0) { initialize_pmic(); @@ -141,8 +142,24 @@ void bl2_platform_setup(void) panic(); } + ddr_ns_size = stm32mp_get_ddr_ns_size(); + assert(ddr_ns_size > 0U); + + /* Map non secure DDR for BL33 load, now with cacheable attribute */ + ret = mmap_add_dynamic_region(STM32MP_DDR_BASE, STM32MP_DDR_BASE, + ddr_ns_size, MT_MEMORY | MT_RW | MT_NS); + assert(ret == 0); + #ifdef AARCH32_SP_OPTEE INFO("BL2 runs OP-TEE setup\n"); + + /* Map secure DDR for OP-TEE paged area */ + ret = mmap_add_dynamic_region(STM32MP_DDR_BASE + ddr_ns_size, + STM32MP_DDR_BASE + ddr_ns_size, + STM32MP_DDR_S_SIZE, + MT_MEMORY | MT_RW | MT_SECURE); + assert(ret == 0); + /* Initialize tzc400 after DDR initialization */ stm32mp1_security_setup(); #else @@ -166,14 +183,6 @@ void bl2_el3_plat_arch_setup(void) MT_CODE | MT_SECURE); #ifdef AARCH32_SP_OPTEE - /* OP-TEE image needs post load processing: keep RAM read/write */ - mmap_add_region(STM32MP_DDR_BASE + dt_get_ddr_size() - - STM32MP_DDR_S_SIZE - STM32MP_DDR_SHMEM_SIZE, - STM32MP_DDR_BASE + dt_get_ddr_size() - - STM32MP_DDR_S_SIZE - STM32MP_DDR_SHMEM_SIZE, - STM32MP_DDR_S_SIZE, - MT_MEMORY | MT_RW | MT_SECURE); - mmap_add_region(STM32MP_OPTEE_BASE, STM32MP_OPTEE_BASE, STM32MP_OPTEE_SIZE, MT_MEMORY | MT_RW | MT_SECURE); @@ -182,14 +191,7 @@ void bl2_el3_plat_arch_setup(void) mmap_add_region(BL32_BASE, BL32_BASE, BL32_LIMIT - BL32_BASE, MT_MEMORY | MT_RO | MT_SECURE); - #endif - /* Map non secure DDR for BL33 load and DDR training area restore */ - mmap_add_region(STM32MP_DDR_BASE, - STM32MP_DDR_BASE, - STM32MP_DDR_MAX_SIZE, - MT_MEMORY | MT_RW | MT_NS); - /* Prevent corruption of preloaded Device Tree */ mmap_add_region(DTB_BASE, DTB_BASE, DTB_LIMIT - DTB_BASE, diff --git a/plat/st/stm32mp1/plat_image_load.c b/plat/st/stm32mp1/plat_image_load.c index a52db6cac..6d7af741a 100644 --- a/plat/st/stm32mp1/plat_image_load.c +++ b/plat/st/stm32mp1/plat_image_load.c @@ -1,9 +1,11 @@ /* - * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ +#include <platform_def.h> + #include <common/desc_image_load.h> #include <plat/common/platform.h> @@ -21,6 +23,13 @@ void plat_flush_next_bl_params(void) ******************************************************************************/ bl_load_info_t *plat_get_bl_image_load_info(void) { + bl_mem_params_node_t *bl33 = get_bl_mem_params_node(BL33_IMAGE_ID); + uint32_t ddr_ns_size = stm32mp_get_ddr_ns_size(); + + /* Max size is non-secure DDR end address minus image_base */ + bl33->image_info.image_max_size = STM32MP_DDR_BASE + ddr_ns_size - + bl33->image_info.image_base; + return get_bl_load_info_from_mem_params_desc(); } diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk index bd1a16bf7..5ce7a9c4f 100644 --- a/plat/st/stm32mp1/platform.mk +++ b/plat/st/stm32mp1/platform.mk @@ -11,6 +11,11 @@ USE_COHERENT_MEM := 0 STM32_TF_VERSION ?= 0 +# Enable dynamic memory mapping +PLAT_XLAT_TABLES_DYNAMIC := 1 +$(eval $(call assert_boolean,PLAT_XLAT_TABLES_DYNAMIC)) +$(eval $(call add_define,PLAT_XLAT_TABLES_DYNAMIC)) + # Not needed for Cortex-A7 WORKAROUND_CVE_2017_5715:= 0 @@ -152,8 +157,6 @@ STM32_TF_ELF_LDFLAGS := --hash-style=gnu --as-needed STM32_TF_STM32 := $(addprefix ${BUILD_PLAT}/tf-a-, $(patsubst %.dtb,%.stm32,$(DTB_FILE_NAME))) STM32_TF_LINKERFILE := ${BUILD_PLAT}/stm32mp1.ld -BL2_CFLAGS += -DPLAT_XLAT_TABLES_DYNAMIC=1 - # Variables for use with stm32image STM32IMAGEPATH ?= tools/stm32image STM32IMAGE ?= ${STM32IMAGEPATH}/stm32image${BIN_EXT} |