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author | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2020-11-17 09:38:50 +0100 |
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committer | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2020-11-20 08:53:18 +0100 |
commit | b169095c7dfd106a9c0c3d47e9f1c640ac3377d2 (patch) | |
tree | 9b92103534313cea24142082e7baab983f7ad3e6 /bsps/arm/stm32h7/start/mpu-config.c | |
parent | bsps/imx: Move imx-gpio to arm/shared (diff) | |
download | rtems-b169095c7dfd106a9c0c3d47e9f1c640ac3377d2.tar.bz2 |
cpu/armv7m: Add table based init for ARMV7M_MPU
Modify the MPU functions of the stm32h7 BSP to be table based and
available for all ARMV7M BSPs.
Update #4180
Diffstat (limited to 'bsps/arm/stm32h7/start/mpu-config.c')
-rw-r--r-- | bsps/arm/stm32h7/start/mpu-config.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/start/mpu-config.c b/bsps/arm/stm32h7/start/mpu-config.c new file mode 100644 index 0000000000..8140e73c37 --- /dev/null +++ b/bsps/arm/stm32h7/start/mpu-config.c @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/* + * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <bsp/linker-symbols.h> +#include <stm32h7/memory.h> +#include <stm32h7/mpu-config.h> + +const ARMV7M_MPU_Region_config stm32h7_config_mpu_region [] = { + { + .begin = stm32h7_memory_sram_axi_begin, + .end = stm32h7_memory_sram_axi_end, + .rasr = ARMV7M_MPU_RASR_XN + | ARMV7M_MPU_RASR_AP(0x3) + | ARMV7M_MPU_RASR_TEX(0x1) | ARMV7M_MPU_RASR_C | ARMV7M_MPU_RASR_B + | ARMV7M_MPU_RASR_ENABLE, + }, { + .begin = stm32h7_memory_sdram_1_begin, + .end = stm32h7_memory_sdram_1_end, + .rasr = ARMV7M_MPU_RASR_XN + | ARMV7M_MPU_RASR_AP(0x3) + | ARMV7M_MPU_RASR_TEX(0x1) | ARMV7M_MPU_RASR_C | ARMV7M_MPU_RASR_B + | ARMV7M_MPU_RASR_ENABLE, + }, { + .begin = bsp_section_start_begin, + .end = bsp_section_text_end, + .rasr = ARMV7M_MPU_RASR_AP(0x5) + | ARMV7M_MPU_RASR_TEX(0x1) | ARMV7M_MPU_RASR_C | ARMV7M_MPU_RASR_B + | ARMV7M_MPU_RASR_ENABLE, + }, { + .begin = bsp_section_rodata_begin, + .end = bsp_section_rodata_end, + .rasr = ARMV7M_MPU_RASR_XN + | ARMV7M_MPU_RASR_AP(0x5) + | ARMV7M_MPU_RASR_TEX(0x1) | ARMV7M_MPU_RASR_C | ARMV7M_MPU_RASR_B + | ARMV7M_MPU_RASR_ENABLE, + }, { + .begin = bsp_section_nocache_begin, + .end = bsp_section_nocachenoload_end, + .rasr = ARMV7M_MPU_RASR_XN + | ARMV7M_MPU_RASR_AP(0x3) + | ARMV7M_MPU_RASR_TEX(0x2) + | ARMV7M_MPU_RASR_ENABLE, + }, { + .begin = stm32h7_memory_null_begin, + .end = stm32h7_memory_null_end, + .rasr = ARMV7M_MPU_RASR_XN | ARMV7M_MPU_RASR_ENABLE, + } + }; + +const size_t stm32h7_config_mpu_region_count = + RTEMS_ARRAY_SIZE(stm32h7_config_mpu_region); |